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Yang N, Pu H, Sun DW. Developing a magnetic SERS nanosensor utilizing aminated Fe-Based MOF for ultrasensitive trace detection of organophosphorus pesticides in apple juice. Food Chem 2024; 446:138846. [PMID: 38460279 DOI: 10.1016/j.foodchem.2024.138846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 02/20/2024] [Accepted: 02/21/2024] [Indexed: 03/11/2024]
Abstract
The unreasonable use of organophosphorus pesticides leads to excessive pesticide residues in food, seriously threatening public health, and the potential of surface-enhanced Raman spectroscopy (SERS) technology, incorporating a metal-organic framework, is substantial for the rapid detection of trace pesticide residues. Here, a novel Fe3O4@NH2-MIL-101(Fe)@Ag (FNMA) SERS nanosensor was developed. Results indicated that the FNMA had a high enhancement factor of 1.53 × 108, a low limit of detection (LOD) of 4.55 × 10-12 M, and a relative standard deviation of 7.73 % for 4-nitrothiophenol, demonstrating its good SERS sensitivity and uniformity, and also possessed good storage stability for one month. In quantifying fenthion and methyl parathion in standard solutions and apple juice in the range of 0.05/0.02-20 mg/L, it showed LODs of 3.02 × 10-3 mg/L and 1.43 × 10-3 mg/L, and 0.0407 and 0.0075 mg/L, respectively, demonstrating potentials in ultrasensitive trace detection of pesticides in food.
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Affiliation(s)
- Nengjing Yang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China
| | - Hongbin Pu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China
| | - Da-Wen Sun
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; Food Refrigeration and Computerized Food Technology (FRCFT), Agriculture and Food Science Centre, University College Dublin, National University of Ireland, Belfield, Dublin 4, Ireland.
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Vonk L, Eekhout I, Huijts T, Levels M, Jansen MWJ. School health promotion and fruit and vegetable consumption in secondary schools: a repeated cross-sectional multilevel study. BMC Public Health 2024; 24:1098. [PMID: 38644493 PMCID: PMC11034157 DOI: 10.1186/s12889-024-18546-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 04/08/2024] [Indexed: 04/23/2024] Open
Abstract
BACKGROUND Worldwide, recommendations for fruit and vegetable consumption are not met, which can cause chronic diseases. Especially adolescence is an important phase for the development of health behaviours. Therefore, in the Netherlands, the Healthy School program was established to aid schools in promoting healthy lifestyles among their students. We examined to what extent the variation between secondary schools regarding students' fruit and vegetable consumption could be explained by differences between schools regarding Healthy School certification, general school characteristics, and the school population. Additionally, we examined whether Healthy School certification was related to the outcomes, and whether the association differed for subgroups. METHODS We performed a repeated cross-sectional multilevel study. We used data from multiple school years from the national Youth Health Monitor on secondary schools (grades 2 and 4, age ranged from approximately 12 to 18 years) of seven Public Health Services, and added data with regard to Healthy School certification, general school characteristics and school population characteristics. We included two outcomes: the number of days a student consumed fruit and vegetables per week. In total, we analysed data on 168,127 students from 256 secondary schools in the Netherlands. RESULTS Results indicated that 2.87% of the variation in fruit consumption and 5.57% of the variation in vegetable consumption could be attributed to differences at the school-level. Characteristics related to high parental educational attainment, household income, and educational track of the students explained most of the variance between schools. Additionally, we found a small favourable association between Healthy School certification and the number of days secondary school students consumed fruit and vegetables. CONCLUSIONS School population characteristics explained more variation between schools than Healthy School certification and general school characteristics, especially indicators of parental socioeconomic status. Nevertheless, Healthy School certification seemed to be slightly related to fruit and vegetable consumption, and might contribute to healthier dietary intake. We found small differences for some subgroups, but future research should focus on the impact in different school contexts, since we were restricted in the characteristics that could be included in this study.
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Affiliation(s)
- Lisanne Vonk
- Academic Collaborative Center for Public Health Limburg, Public Health Service South Limburg, 6400 AA, Heerlen, P.O. Box 33, the Netherlands.
- Department of Health Services Research, Care and Public Health Research Institute (CAPHRI), Maastricht University, 6200 MD, Maastricht, P.O. Box 616, the Netherlands.
| | - Iris Eekhout
- Expertise Center Child Health, Netherlands Organisation for Applied Scientific Research (TNO), 2301 DA, Leiden, P.O. Box 3005, the Netherlands
| | - Tim Huijts
- Research Centre for Education and the Labour Market (ROA), School of Business and Economics, Maastricht University, Postbus 616, 6200 MD, Maastricht, the Netherlands
| | - Mark Levels
- Research Centre for Education and the Labour Market (ROA), School of Business and Economics, Maastricht University, Postbus 616, 6200 MD, Maastricht, the Netherlands
| | - Maria W J Jansen
- Academic Collaborative Center for Public Health Limburg, Public Health Service South Limburg, 6400 AA, Heerlen, P.O. Box 33, the Netherlands
- Department of Health Services Research, Care and Public Health Research Institute (CAPHRI), Maastricht University, 6200 MD, Maastricht, P.O. Box 616, the Netherlands
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Yang Q, Wang Y, Zhang G, Wang Y, Huang J, Feng Y, Li Y, Jiang J, Zhang Y. Overexpression of a BR inactivating enzyme gene GhPAG1 impacts eggplant fruit development and anthocyanin accumulation mainly by altering hormone homeostasis. Plant Sci 2024; 341:112014. [PMID: 38309473 DOI: 10.1016/j.plantsci.2024.112014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 01/24/2024] [Accepted: 01/30/2024] [Indexed: 02/05/2024]
Abstract
Brassinosteroids (BRs) function importantly in plant growth and development, but the roles in regulating fruit development and anthocyanin pigmentation remain unclear. Eggplant (Solanum melongena L.) is an important Solanaceae vegetable crop rich in anthocyanins. The fruit size and coloration are important agronomic traits for eggplant breeding. In this study, transgenic eggplant exhibiting endogenous BRs deficiency was created by overexpressing a heterologous BRs-inactivating enzyme gene GhPAG1 driven by CaMV 35 S promoter. 35 S::GhPAG1 eggplant exhibited severe dwarfism, reduced fruit size, and less anthocyanin accumulation. Microscopic observation showed that the cell size of 35 S::GhPAG1 eggplant was significantly reduced compared to WT. Furthermore, the levels of IAA, ME-IAA, and active JAs (JA, JA-ILE, and H2JA) all decreased in 35 S::GhPAG1 eggplant fruit. RNA-Seq analyses showed a decrease in the expression of genes involved in cell elongation, auxin signaling, and JA signaling. Besides, overexpression of GhPAG1 significantly downregulated anthocyanin biosynthetic genes and associated transcription regulators. Altogether, these results strongly suggest that endogenous brassinosteroid deficiency arising from GhPAG1 overexpression impacts eggplant fruit development and anthocyanin coloration mainly by altering hormone homeostasis.
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Affiliation(s)
- Qiu Yang
- School of Agricultural Sciences, Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan 450001, China
| | - Yong Wang
- Henan Engineering Technology Research Center of New Germplasm Creation and Utilization for Solanaceous Vegetable Crops, Zhumadian Academy of Agricultural Sciences, Fuqiang Road 51, Zhumadian 463000, China
| | - Guilan Zhang
- School of Agricultural Sciences, Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan 450001, China
| | - Yunxing Wang
- Henan Youmei Agricultural Technology Co., Ltd, Zhoukou 466100, China
| | - Jingyong Huang
- School of Agricultural Sciences, Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan 450001, China
| | - Youwei Feng
- School of Agricultural Sciences, Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan 450001, China
| | - Yan Li
- School of Agricultural Sciences, Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan 450001, China
| | - Jun Jiang
- Henan Engineering Technology Research Center of New Germplasm Creation and Utilization for Solanaceous Vegetable Crops, Zhumadian Academy of Agricultural Sciences, Fuqiang Road 51, Zhumadian 463000, China.
| | - Yanjie Zhang
- School of Agricultural Sciences, Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan 450001, China.
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4
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Dantes W, Boatwright L, Cieniewicz E. Comparing RT-PCR of individual samples with high throughput sequencing of pooled plant samples for field-level surveillance of viruses in blackberry and wild Rubus. Plant Dis 2024. [PMID: 38557244 DOI: 10.1094/pdis-11-23-2428-re] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Blackberry production is increasing in the southeastern U.S. with the availability of new cultivars. In addition to high production costs, growers are challenged by virus diseases. Blackberry yellow vein disease (BVYD) significantly limits blackberry production. BYVD is associated with the crinivirus blackberry yellow vein-associated virus (BYVaV) in mixed infections with other viruses. The specific disease etiology and ecological factors underlying BYVD are not well understood and rely on the effective diagnosis of several viruses involved in the complex. In 2021, we collected samples from blackberry plants showing BYVD symptoms, asymptomatic blackberry plants, and wild Rosaceae spp. from nine farms across South Carolina, for a total of 372 individual plant samples. RNA from individual samples was isolated and pooled into sample groups (i.e., symptomatic, asymptomatic, and wild) from each farm for a total of 24 pooled samples. We sequenced the pooled RNA using Illumina and analyzed sequence profiles using the Virtool bioinformatics application. We also tested each plant for six viruses by RT-PCR or RT-qPCR and compared plant (PCR)-level and field (high throughput sequencing (HTS))-level data. Virtool detected 17 known viruses in the pooled samples, including 11 blackberry viruses. PCR testing was mostly consistent with HTS, with some notable disagreements for specific viruses. Our study demonstrates that HTS could be used as an efficient tool to detect viruses in bulked samples in blackberry fields, though limitations to using HTS for field-level surveillance are also discussed here.
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Affiliation(s)
- Wanita Dantes
- Clemson University, 2545, Plant and Environmental Sciences, 105 Sikes Hall, Clemson, South Carolina, United States, 29634-0002;
| | - Lucas Boatwright
- Corteva Agriscience LLC, 70112, Indianapolis, Indiana, United States;
| | - Elizabeth Cieniewicz
- Clemson University, Plant and Environmental Sciences, 105 Collings St., 216 Biosystems Research Complex, Clemson, South Carolina, United States, 29634;
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5
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Zhao H, Zhang S, Ma D, Liu Z, Qi P, Wang Z, Di S, Wang X. Review of fruits flavor deterioration in postharvest storage: Odorants, formation mechanism and quality control. Food Res Int 2024; 182:114077. [PMID: 38519167 DOI: 10.1016/j.foodres.2024.114077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/25/2024] [Accepted: 01/29/2024] [Indexed: 03/24/2024]
Abstract
Fruits flavor deterioration is extremely likely to occur during post-harvest storage, which not only damages quality but also seriously affects its market value. This work focuses on the study of fruits deterioration odorants during storage by describing their chemical compositions (i.e., alcohols, aldehydes, acids, and sulfur-containing compounds). Besides, the specific flavor deterioration mechanisms (i.e., fermentation metabolism, lipid oxidation, and amino acid degradation) inducing by factors (temperature, oxygen, microorganisms, ethylene) are summarized. Moreover, quality control strategies to mitigate fruits flavor deterioration by physical (temperature control, hypobaric treatment, UV-C, CA) and chemical (1-MCP, MT, NO, MeJA) techniques are also proposed. This review will provide useful references for fruits flavor control technologies development.
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Affiliation(s)
- Huiyu Zhao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Suling Zhang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Di Ma
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Zhenzhen Liu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Peipei Qi
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Zhiwei Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Shanshan Di
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Xinquan Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China.
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6
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Randriamiarintsoa N, Ryser ET, Marks BP. Effect of Air Temperature and Velocity on Listeria monocytogenes Inactivation During Drying of Apple Slices. J Food Prot 2024; 87:100253. [PMID: 38417481 DOI: 10.1016/j.jfp.2024.100253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 02/01/2024] [Accepted: 02/21/2024] [Indexed: 03/01/2024]
Abstract
A wide range of drying parameters and methods are used by industry to produce dried apples. To ensure end-product safety and regulatory compliance, it is essential to evaluate the effectiveness of such industrial practices on microbial inactivation. Therefore, the objective of this study was to evaluate the effects of drying air temperature and velocity on Listeria monocytogenes inactivation during drying of apple slices. Apples (cv. Gala) were cored, sliced as rings (∼6 mm thick), and surface-inoculated with broth-grown culture of an 8-strain cocktail of L. monocytogenes to achieve an inoculation level of 8.6 ± 0.3 log CFU/g. Apple rings were dried in batches using dry air in a pilot-scale impingement oven at 60 or 80 °C air temperature and 0.7 or 2.1 m/s air velocity, and sampled every 30 min for bacterial enumeration, water activity (aw), and moisture content analysis. L. monocytogenes reduction increased (P < 0.05) with higher air velocity or higher drying air temperature. By the end of drying, in which the standard moisture content for dried apple slices of <24% wet basis was reached, L. monocytogenes was reduced by 1.8 ± 0.3 and 2.8 ± 0.7 log CFU/g at 0.7 and 2.1 m/s air velocity, respectively, after 180 min at 60 °C. When using 80 °C drying temperature, L. monocytogenes reduction was 5.2 ± 0.5 log CFU/g at both air velocities after 150 min. Therefore, process conditions should be considered in the validation of fruit drying processes, instead of solely relying on product endpoint properties, such as moisture content.
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Affiliation(s)
- Narindra Randriamiarintsoa
- Department of Biosystems and Agricultural Engineering, Michigan State University, East Lansing, MI 48824, USA
| | - Elliot T Ryser
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824, USA
| | - Bradley P Marks
- Department of Biosystems and Agricultural Engineering, Michigan State University, East Lansing, MI 48824, USA.
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Weiland JE, Scagel CF, Benedict C, Wasko-DeVetter L, Beck BR. Fungicide sensitivity of Phytophthora isolates from the Washington red raspberry industry. Plant Dis 2024. [PMID: 38468135 DOI: 10.1094/pdis-12-23-2641-re] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
Phytophthora rubi is an important pathogen causing Phytophthora root rot of red raspberries worldwide. Management of this disease is partially achieved with fungicides, but efficacy has been low and growers are concerned about fungicide resistance. To determine whether fungicide resistance is developing, Phytophthora species were isolated from 26 raspberry fields with root rot, identified, and evaluated for sensitivity to four fungicides: mefenoxam, phosphorous acid, oxathiapiprolin, and dimethomorph. The majority of the recovered 152 Phytophthora isolates were P. rubi (143 isolates, 25 fields), with P. megasperma (8 isolates, 2 fields) and P. gonapodyides (1 isolate, 1 field) being found much less frequently. These results confirm P. rubi as the dominant species affecting the Washington red raspberry industry. Almost all tested isolates were sensitive to all four fungicide chemistries, although three isolates were less sensitive to mefenoxam with EC50 values ranging from 3.53 to 100 µg ai/ml. No resistance was detected against current fungicide label rates. However, other reasons were identified for why fungicides have been ineffective. Label rates vary widely by brand and most fungicides are applied in the fall when P. rubi is inactive. In addition, some phosphorous acid products are only labeled for foliar applications, which have been shown to be less effective than soil applications in other agricultural systems. Efficacy trials are needed to compare foliar and soil fungicide applications at different times of the year for their ability to control Phytophthora root rot in red raspberry production fields.
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Affiliation(s)
- Jerry E Weiland
- USDA-ARS Horticultural Crops Research Unit, 57752, Horticultural Crops Disease and Pest Management Research Unit, Corvallis, Oregon, United States;
| | - Carolyn F Scagel
- USDA-ARS National Clonal Germplasm Repository, 57753, Corvallis, Oregon, United States;
| | - Chris Benedict
- Washington State University Whatcom County Extension, Bellingham, Washington, United States;
| | - Lisa Wasko-DeVetter
- Washington State University, Northwestern Washington Research and Extension Center, Mount Vernon, Washington, United States;
| | - Bryan R Beck
- USDA-ARS Horticultural Crops Disease and Pest Management Research Unit, Corvallis, Oregon, United States;
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Dėlkus M, Žižytė-Eidetienė M, Ivanauskas A, Valiunas D. First Report of Lingonberry Stunted Yellows Disease of Vaccinium vitis-idaea L. associated with ' Candidatus Phytoplasma trifolii'-Related Phytoplasma Strain in Lithuania. Plant Dis 2024. [PMID: 38457635 DOI: 10.1094/pdis-02-24-0284-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/10/2024]
Abstract
Lingonberries (Vaccinium vitis-idaea L.) are low-growing, evergreen shrubs of cooler, northern regions of North America and Europe. These plants produce berries that are unique in flavor, bear high economic significance, and play a vital role in maintaining the diversity of the northern ecosystems (Kowalska, 2021). In October 2023 diseased plants of lingonberry were discovered in Labanoras Forest (55°14'N 25°42'E) (Lithuania). The plants expressed symptoms of stunting, yellowing, little leaf, shortened internodes, and stem distortions. Samples (leaves) were collected and tested from ten asymptomatic and ten symptomatic lingonberry plants. Total genomic DNAs of all samples were extracted by a CTAB protocol. Extracted DNAs were used as a template in direct and nested PCRs using the universal primer pairs P1/P7 and R16F2n/R2, respectively, to amplify phytoplasma 16S rRNA gene 1.2 kb fragments (Lee et al. 1998). The primer pairs SecAFor1/SecARev3 and SecAFor2/SecARev3 were used in direct and semi-nested PCRs, respectively, to amplify phytoplasma secA genes 0.5 kb fragment (Dickinson and Hodgetts, 2013). PCR amplicons of the 16S rRNA and secA genes specific for the phytoplasmas were only obtained from all sampled symptomatic plants. Three R16F2n/R2 and three SecAFor2/SecARev3 amplicons were cloned and submitted for Sanger sequencing (Nature Research Centre, Vilnius, Lithuania by 3500 Genetic Analyser). The three 16S rDNAs as well as the three secA gene fragments were identical. The BLAST analysis (NCBI) of the obtained sequences showed a similarity percentage, ranging from 99.75% to 100% (1247-1250 bp from 1250 bp) for 16SrRNA, and 98.13% to 99,15% (473-478 bp from 482 bp) for secA amplicons, with numerous strains of 'Candidatus (Ca.) Phytoplasma (P.) trifolii' (first hit MT674293 and KR906724, respectively). Additionally, 16S rDNA sequences by using iPhyClassifier were used to create virtual RFLP pattern (Zhao et al. 2009). The generated pattern was identical (similarity coefficient 1.00) to the reference pattern of 16Sr group VI, subgroup A. The phytoplasma strain detected in lingonberries was designated as lingonberry stunted yellows, LingbSY. Furthermore, the enzymatic RFLP analysis was performed with the 14 restriction enzymes (Lee et al., 1998), and obtained profiles were compared with virtually generated using iPhyClassifier. This yielded the same classification of detected phytoplasma to the 16SrVI-A phytoplasma subgroup. The phylogenetic analysis of both marker gene sequences revealed the same LingbSY phytoplasma classification. Selected sequences were deposited in GenBank (NCBI) with Accession No: PP237769 (16S rRNA gene) and No: PP238489 (secA gene). Phytoplasmas of 16SrI phytoplasma group were identified in lingonberries in Canada (Brochu et al. 2022). Strains of 16SrVI phytoplasma group were reported in Vaccinium myrtillus in Austria (Fernandez et al. 2007). This is the first report of 'Ca. P. trifolii' strain belonging to 16SrVI-A phytoplasma subgroup infecting lingonberry worldwide. Also, this is the first report of 16SrVI phytoplasma group in Lithuania. The presence of this phytoplasma poses a threat to the natural ecosystem and could eventually spread into agricultural settings in our country. Therefore, it's crucial to conduct surveillance for insect vectors, and assess effective control methods. Without proactive action, long term sustainability of lingonberries and their ecosystems may be jeopardized.
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Affiliation(s)
- Martynas Dėlkus
- Nature Research Centre, 282393, Laboratory of Plant Pathology, Vilnius, Lithuania;
| | | | - Algirdas Ivanauskas
- Nature Research Centre, 282393, Laboratory of Plant Pathology, Vilnius, Lithuania;
| | - Deividas Valiunas
- Nature Research Centre, 282393, Laboratory of Plant Pathology, Akademijos St. 2, Vilnius, Lithuania, 08412
- United States;
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Araste A, Moghadam MRSF, Mohammadhasani K, Fard MV, Khorasanchi Z, Latifi M, Hasanzadeh E, Talkhi N, Sharifan P, Asadiyan-Sohan P, Bidokhti MK, Ghassemi A, Darban RA, Ferns G, Ghayour-Mobarhan M. Adherence to the nordic diet is associated with anxiety, stress, and depression in recovered COVID-19 patients, a case-control study. BMC Nutr 2024; 10:38. [PMID: 38429766 PMCID: PMC10908094 DOI: 10.1186/s40795-024-00845-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 02/16/2024] [Indexed: 03/03/2024] Open
Abstract
BACKGROUND Follow-up of COVID-19 recovered patients to discover important adverse effects on other organs is required. The psychological health of COVID-19 patients may be affected after recovery. AIM We aimed to evaluate the association between adherence to the Nordic diet (ND) and psychological symptoms caused by COVID-19 after recovery. METHOD Dietary data on 246 qualified adults (123 cases and 123 controls). The dietary intake in this case-control study was calculated by a reliable and valid food frequency questionnaire (FFQ). Depression Anxiety Stress Scale (DASS), Pittsburgh Sleep Quality Index (PSQI), Insomnia Severity Index (ISI), and Short-Form Health Survey (SF-36) were used to analyze participant's anxiety, stress, depression, sleep quality, insomnia, and quality of life of participants. RESULTS There was a significant inverse relationship between total anxiety, stress, and depression scores and the intake of whole grains (P < 0.05). Furthermore, there was a significant inverse association between depression and fruit intake (P < 0.05). A significant negative correlation was found between insomnia and sleep quality and the intake of root vegetables (P < 0.05). In the multinomial-regression model, a significant association between the Nordic diet and anxiety, stress, and depression was found only in the case group (OR = 0.719, 95% CI 0.563-0.918, p-value = 0.008; OR = 0.755, 95% CI 0.609-0.934, P-value = 0.010, and, OR = 0.759, 95% CI 0.602-0.956, P-value = 0.019 respectively). CONCLUSION Adherence to the Nordic diet might reduce anxiety, stress, and depression in recovered COVID-19 patients.
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Affiliation(s)
- Asie Araste
- Department of Nutrition, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Student Research Committee, faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Kimia Mohammadhasani
- Department of Nutrition, Food Sciences and Clinical Biochemistry, School of Medicine, Social Determinants of Health Research Center, Gonabad University of Medical Science, Gonabad, Iran
| | - Mohammad Vahedi Fard
- Department of Nutrition, Food Sciences and Clinical Biochemistry, School of Medicine, Social Determinants of Health Research Center, Gonabad University of Medical Science, Gonabad, Iran
| | - Zahra Khorasanchi
- Department of Nutrition, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - MohammadReza Latifi
- International UNESCO Center for Health Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Elahe Hasanzadeh
- International UNESCO Center for Health Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Nasrin Talkhi
- Department of Biostatistics, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Payam Sharifan
- Department of Nutrition, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Parisa Asadiyan-Sohan
- Departments of Biology, Faculty of Sciences, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Marjan Khayati Bidokhti
- International UNESCO Center for Health Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Arezoo Ghassemi
- International UNESCO Center for Health Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Reza Assaran Darban
- Departments of Biology, Faculty of Sciences, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Gordon Ferns
- Brighton and Sussex Medical School, Division of Medical Education, Brighton, UK
| | - Majid Ghayour-Mobarhan
- Department of Nutrition, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
- International UNESCO Center for Health Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran.
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Vilela ESD, Terao D, do Nascimento de Queiroz SC, da Silva AM, de Holanda Nunes Maia A, Fracarolli JA, Dorta C, da Silva Dos Santos L. Essential oils on the control of fungi causing postharvest diseases in mango. Braz J Microbiol 2024; 55:689-698. [PMID: 38227116 PMCID: PMC10920554 DOI: 10.1007/s42770-023-01237-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 12/26/2023] [Indexed: 01/17/2024] Open
Abstract
The use of fungicides in the postharvest treatment of mangoes has been widespread due to the incidence of pathogens, but awareness of the health risks arising from their use has increased, driving the search for more sustainable treatments. This study aimed to evaluate the activity of antifungal treatment of seven essential oils (EO) against four fungi that cause postharvest diseases in mangoes and define the minimum inhibitory concentration (MIC) and chemical composition, analyzed by gas chromatography (GC-MS). The results showed that the EOs of oregano, rosemary pepper, cinnamon bark, and clove inhibited 100% of the mycelial growth of the studied pathogens, with MIC ranging from 250 to 2000 μL.L-1. The main compound found in oregano was carvacrol (69.1%); in rosemary and pepper oil, it was thymol (77.2%); cinnamaldehyde (85.1%) was the main constituent of cinnamon bark, and the eugenol (84.84%) in cloves. When evaluating the antifungal activity of these compounds, thymol and carvacrol showed greater inhibitory activity against fungi. Therefore, this study showed the great potential of oregano, clove, rosemary pepper, and cinnamon bark essential oil as alternative treatments to synthetic fungicides in controlling postharvest diseases in mangoes.
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Affiliation(s)
- Elke Simoni Dias Vilela
- Embrapa Meio Ambiente, Raquel Ghini Environmental Microbiology Laboratory, Jaguariúna, SP, Brazil.
| | - Daniel Terao
- Embrapa Meio Ambiente, Research Sector, Jaguariúna, SP, Brazil
| | | | - Adriane Maria da Silva
- UNICAMP, Universidade Estadual de Campinas, Agricultural engineering, Campinas, SP, Brazil
| | | | | | - Caroline Dorta
- UFSCar, Universidade Federal de São Carlos, Agroecology, Araras, SP, Brazil
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11
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Karpouzis F, Lindberg R, Walsh A, Shah S, Abbott G, Ball K. Impact and process evaluation of a primary-school Food Education and Sustainability Training (FEAST) program in 10-12-year-old children in Australia: pragmatic cluster non-randomized controlled trial. BMC Public Health 2024; 24:657. [PMID: 38429629 PMCID: PMC10905805 DOI: 10.1186/s12889-024-18079-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 02/12/2024] [Indexed: 03/03/2024] Open
Abstract
BACKGROUND Environmentally sustainable food initiatives accompanying nutrition education, such as the Food Education and Sustainability Training (FEAST) program, have gained traction in school settings. The aim of this trial was to conduct an impact and process evaluation of FEAST, to evaluate its effect on children's fruit and vegetable (F&V) intakes, and secondary outcomes: F&V variety consumed, nutrition knowledge, food preparation/cooking skills, self-efficacy and behaviours, food waste knowledge and behaviours, and food production knowledge. METHODS FEAST was a 10-week curriculum-aligned program, designed to educate children about healthy eating, food waste, and sustainability, while teaching cooking skills. It was implemented by classroom teachers, face-to-face and online, during COVID-19 school closures, in Australia in 2021. A custom designed survey was used to collect baseline and post-intervention data from students. Generalised linear mixed models (GLMM) estimated group differences in pre-post changes for primary and secondary outcomes. Surveys were also administered to students and teachers to evaluate intervention implementation. RESULTS Twenty schools participated and self-selected to be either intervention schools (n = 10) or wait-list control (WLC) schools (n = 10). A total of 977, 5th and 6th grade children participated in the trial with a mean age of 11.1 years (SD ± 0.7). The FEAST intervention, compared to WLC, did not result in significant increases in primary outcomes nor secondary outcomes. The process evaluation revealed FEAST was well-received by students and teachers, but COVID-19 school closures hindered implementation fidelity with a less intense program delivered under the constraints of pandemic lockdowns. CONCLUSIONS This is the first cluster non-randomized controlled trial designed to independently evaluate FEAST in the primary-school setting. No evidence was found for improved F&V intakes in children, nor secondary outcomes. However, the positive process evaluation results suggest that further trials of the program are warranted. If implemented as originally designed (pre-pandemic), with increased duration and complemented by supporting school policies, such programs have the potential to improve children's daily F&V intakes, cooking skills and food waste behaviours. This would support the Australian curriculum and contribute to: health promotion within schools and sustainable schools initiatives, the national agenda to reduce food waste and sustainable development goals. AUSTRALIAN AND NEW ZEALAND CLINICAL TRIALS REGISTRY: [ACTRN12620001347954]- Registered prospectively on 14/12/2020.
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Affiliation(s)
- F Karpouzis
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Melbourne, VIC, Australia.
- , Rose Bay Nth, Australia, PO Box 2108, NSW, 2030.
| | - R Lindberg
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Melbourne, VIC, Australia
| | - A Walsh
- School of Behavioural and Health Sciences, Australian Catholic University, Melbourne, VIC, Australia
| | - S Shah
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - G Abbott
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Melbourne, VIC, Australia
| | - K Ball
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Melbourne, VIC, Australia
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12
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Hagenaars LL, Fazzino TL, Mackenbach JD. Giving fruits and vegetables a tax break: lessons from a Dutch attempt. Public Health Nutr 2024; 27:e70. [PMID: 38356382 DOI: 10.1017/s1368980024000442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
OBJECTIVE Food taxation can improve diets by making unhealthy foods more expensive and by making healthy foods cheaper. In the Netherlands, a political window of opportunity arose in December 2021 to reduce the value-added tax (VAT) on fruits and vegetables to zero percent. The policy is now facing institutional friction along several fronts, however, delaying and potentially averting its implementation. We analysed this institutional friction to inform future food tax policies. DESIGN We qualitatively analysed open-access fiscal and health experts' position papers about benefits and downsides of the zero-rate that were discussed with members of parliament in June 2023. SETTING The Netherlands. PARTICIPANTS Not applicable. RESULTS Health and fiscal experts expressed noticeably different viewpoints towards the utility of the zero-rate. One important argument fiscal experts based their negative advice upon pertained to the legal restrictions for distinguishing between healthier and unhealthier forms of fruits and vegetables (i.e. the principle of neutrality). A zero-rate VAT on unhealthier forms of fruits and vegetables, e.g. processed cucumber, mixed with salt and sugar, would be undesirable, but differentiating between raw and processed cucumber would offend the neutrality principle. CONCLUSIONS The Dutch attempt to give fruits and vegetables a tax break highlights the need for crystal-clear food classifications when designing food tax policies. Public health nutritionists should combine classifications based on caloric density, palatability, degree of processing and nutrient content to provide a database for evidence-informed tax differentiation according to food item healthfulness.
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Affiliation(s)
- Luc L Hagenaars
- Amsterdam UMC location University of Amsterdam, Department of Public and Occupational Health, P.O. Box 7057, Amsterdam1007 MB, The Netherlands
- Philip R. Lee Institute for Health Policy Studies, University of California San Francisco, San Francisco, CA, USA
| | - Tera L Fazzino
- University of Kansas, Department of Psychology, Lawrence, KS, USA
- University of Kansas, Cofrin Logan Center for Addiction Research and Treatment, Lawrence, KS, USA
| | - Joreintje Dingena Mackenbach
- Amsterdam UMC location Vrije Universiteit Amsterdam, Epidemiology and Data Science, Boelelaan, Amsterdam, The Netherlands
- Upstream Team, Amsterdam, The Netherlands
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13
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Wang F, Zhang P, Ren Y, Huang D, Xu F, Ma J, Luo S, Liang X. The estimated effect of increasing fruit interventions on controlling body weight in children and adolescents: A meta-analysis. Prev Med 2024; 179:107785. [PMID: 37992975 DOI: 10.1016/j.ypmed.2023.107785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 11/08/2023] [Accepted: 11/14/2023] [Indexed: 11/24/2023]
Abstract
BACKGROUND The impact of increased fruit consumption on weight change remains a matter of debate. OBJECTIVE This study aimed to evaluate the effects of interventions targeted at promoting fruit consumption and managing body weight in children and adolescents. METHODS Four electronic databases, including PubMed, Web of science, Embase, and the Cochrane Library, were searched from January 1, 2000, to October 10th, 2023, to identify Randomized controlled trials (RCTs) that assessed changes in fruit consumption and obesity indicators. RESULTS A total of 22 trials including 12,678 participants who met our inclusion criteria were selected for this review. The meta-analysis demonstrated that the interventions increased fruit intake (MD = 78.58 g/day (95% CI 53.09 to 104.07), P < 0.001) in children and adolescents. The mean reduction of body mass index was 0.27 kg/m2 (95% CI -0.59 to 0.05 kg/m2, P = 0.101). And no significant decreases were observed in body mass index-z scores, but there was a significant decrease in waist circumference (MD = -0.65 cm (95% CI -1.15 to -0.05 cm), P < 0.05). Increased fruit intake was shown to be associated with a lower prevalence of obesity when compared to the control group (odds ratio [OR]: 0.74, 95% CI 0.60 to 0.90), P < 0.05). CONCLUSIONS This meta-analysis provided evidence that interventions aimed at increasing fruit consumption were effective at reducing obesity prevalence.
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Affiliation(s)
- Fengming Wang
- Department of Clinical Epidemiology and Biostatistics, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing 400016, China
| | - Ping Zhang
- Department of Clinical Epidemiology and Biostatistics, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing 400016, China
| | - Yanling Ren
- Department of Clinical Epidemiology and Biostatistics, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing 400016, China
| | - Daochao Huang
- Department of Clinical Epidemiology and Biostatistics, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing 400016, China
| | - Fenglin Xu
- Department of Clinical Epidemiology and Biostatistics, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing 400016, China
| | - Jun Ma
- Shimian People's Hospital, Ya'an, China
| | - Shunqing Luo
- Department of Clinical Epidemiology and Biostatistics, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing 400016, China.
| | - Xiaohua Liang
- Department of Clinical Epidemiology and Biostatistics, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing 400016, China.
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Daungsupawong H, Wiwanitkit V. Fruit and Vegetable Consumption Promotion Model and Prevention for Cholangiocarcinoma: A Direct Hit to the Target? Asian Pac J Cancer Prev 2024; 25:365. [PMID: 38415518 DOI: 10.31557/apjcp.2024.25.2.365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Indexed: 02/29/2024] Open
Affiliation(s)
| | - Viroj Wiwanitkit
- Department of Research Analytics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences Saveetha University India
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15
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Wu C, Liu P, Yuan Z. Prospective association between fruit and vegetable intake and the risk of type 2 diabetes amongst Chinese adults: the China Health and Nutrition Survey. Int J Food Sci Nutr 2024; 75:81-91. [PMID: 37933616 DOI: 10.1080/09637486.2023.2278418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 10/28/2023] [Indexed: 11/08/2023]
Abstract
This study aimed to prospectively explore the relationship between fruit and vegetable intake (FVI) and type 2 diabetes (T2D) risk amongst 13,175 Chinese adults. Cox proportional hazards models were used to estimate the hazard ratios (HRs) of T2D events in relation to FVI. Results showed that the highest quintile of FVI was inversely associated with T2D risk in men (HR = 0.72, 95% CI: 0.50, 0.98) and women (HR = 0.74, 95% CI: 0.55, 0.97), whereas no such associations were observed between total vegetable intake and T2D in either men (HR = 0.92, 95% CI: 0.65, 1.26) or women (HR = 1.02, 95% CI: 0.77, 1.38). In addition, greater fruit intake was inversely associated with T2D risk in men (HR = 0.42, 95% CI: 0.28, 0.63) and women (HR = 0.64, 95% CI: 0.45, 0.90). Overall, FVI and total fruit intake were inversely associated with T2D risk amongst Chinese adults.
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Affiliation(s)
- Caifeng Wu
- Research Center, Chengdu Medical College, Chengdu, China
| | - Pingping Liu
- Hefei Yaohai District Center for Disease Control and Prevention, Hefei, China
| | - Zhanpeng Yuan
- School of Public Health, Wuhan University, Wuhan, China
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Bernal-Gallardo JJ, González-Aguilera KL, de Folter S. EXPANSIN15 is involved in flower and fruit development in Arabidopsis. Plant Reprod 2024:10.1007/s00497-023-00493-4. [PMID: 38285171 DOI: 10.1007/s00497-023-00493-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 12/14/2023] [Indexed: 01/30/2024]
Abstract
KEY MESSAGE EXPANSIN15 is involved in petal cell morphology and size, the fusion of the medial tissues in the gynoecium and expansion of fruit valve cells. It genetically interacts with SPATULA and FRUITFULL. Cell expansion is fundamental for the formation of plant tissues and organs, contributing to their final shape and size during development. To better understand this process in flower and fruit development, we have studied the EXPANSIN15 (EXPA15) gene, which showed expression in petals and in the gynoecium. By analyzing expa15 mutant alleles, we found that EXPA15 is involved in petal shape and size determination, by affecting cell morphology and number. EXPA15 also has a function in fruit size, by affecting cell size and number. Furthermore, EXPA15 promotes fusion of the medial tissues in the gynoecium. In addition, we observed genetic interactions with the transcription factors SPATULA (SPT) and FRUITFULL (FUL) in gynoecium medial tissue fusion, style and stigma development and fruit development in Arabidopsis. These findings contribute to the importance of EXPANSINS in floral and fruit development in Arabidopsis.
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Affiliation(s)
- Judith Jazmin Bernal-Gallardo
- Unidad de Genómica Avanzada (UGA-Langebio), Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), 36824, Irapuato, GTO., Mexico
| | - Karla L González-Aguilera
- Unidad de Genómica Avanzada (UGA-Langebio), Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), 36824, Irapuato, GTO., Mexico
| | - Stefan de Folter
- Unidad de Genómica Avanzada (UGA-Langebio), Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), 36824, Irapuato, GTO., Mexico.
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Ordóñez J, Pastrana AM, Borrero C, Rodríguez-Tello Á, Avilés M. First report of root and crown rot caused by Fusarium oxysporum Schltdl. on Prunus cerasifera L. in Spain. Plant Dis 2024. [PMID: 38268173 DOI: 10.1094/pdis-11-23-2411-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
In 2021, Spain was the largest producer of cherries in Europe with a production of 125810 tons (FAOSTAT, 2021). In May 2022, in several production fields in Huelva (Spain), wilting was noted in 4-year-old cherry trees cv. Crystal Champaign grafted on rootstock cv. Adara (Prunus cerasifera L.). Gumming and wilting affected approx. 1% of the production area, leading to the eventual collapse and death of most affected trees within 2-3 years. Discoloration of the vascular system of the crown and roots was also noted. Symptomatic crown and root pieces (0.5 cm) were subjected to surface sterilization: immersed in 1% NaClO for 2 min, rinsed in sterile distilled water, and air-dried in a laminar flow cabinet. Then, plant tissues were placed on potato dextrose agar (PDA) amended with streptomycin and incubated in a lab bench at room temperature for a week. Cottony and pink colonies were observed growing from the tissues. Two single strains (F175 and F176) were obtained from each tree by excising single spores (Gordon and Okamoto 1991). Isolates produced sparse aerial mycelia with white to pinkish-orange pigmentation on Spezieller Nährstoffarmer Agar (SNA). Both isolates produced microconidia in false heads on short monophialides. Microconidia were hyaline and measured in the range of 5.0-17.5 × 2.5-3.8 µm for both isolates (n = 50). Macroconidia were less abundant, falciform, and hyaline. Morphological characteristics were consistent with identification as Fusarium spp. (Leslie and Summerell 2006). A portion of the translation elongation factor-1 alpha (EF-1α) gene was sequenced using EF1/2 primers (O'Donnell et al. 1998) (GenBank Accession Nos. OR733348 and OR733349). Based on a comparison of 619 base pairs (bp), both isolates exhibited different sequences, with a 99.5% similarity (616/619 bp). A comparison with previously described isolates revealed a 100% match with published F. oxysporum sequences in the GenBank database (KT323846 and MZ404079, respectively). Isolates were used to conduct pathogenicity tests on 1-year-old plants cv. Adara growing in 512 cm3 pots. Using a scalpel, a 6-7 mm-length wound (2-3 mm deep) was made 5 cm above the soil line in all plants. For each isolate, 5 plants were inoculated by placing a 5 mm plug containing 10-day-old mycelia grown in AMAP medium (Borrero et al. 2009) at the incision point. Non-colonized AMAP plugs were used to inoculate 5 control plants. The inoculated sites were sealed with parafilm. Plants were randomly placed in a growth chamber with a temperature of 28/24ºC and a 12-hour photoperiod. A reddish-brown vascular stem discoloration was noticed in all the inoculated plants 73 days after inoculation. On average, the length of the necrotic area was 12.73 cm for F175, 20.12 cm for F176, and 4.59 cm for the control plants. Fusarium oxysporum was successfully re-isolated from all the inoculated plants. Recovered isolates were confirmed to be the same as the inoculated ones by sequencing the EF-1α gene. A one-way ANOVA indicates that plants cv. Adara were susceptible to both F. oxysporum isolates (P < 0.05). This is particularly noteworthy as cherries are predominantly planted on rootstocks and cv. Adara is a widely used rootstock in Spain. While F. oxysporum has been reported as the cause of root and crown rot in sweet cherry (P. avium L.) in British Columbia (Úrbez-Torres et al. 2016), this is the first report of F. oxysporum causing root and crown rot in cherry rootstocks (P. cerasifera L.) in Spain.
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Affiliation(s)
- Javier Ordóñez
- Universidad de Sevilla, 16778, Agronomy, Ctr. Utrera Km 1, Sevilla, Andalucía, Spain, 41013;
| | | | - Celia Borrero
- Universidad de Sevilla, 16778, Ciencias Agroforestales, ETSIA, Ctra Utrera km 1, Sevilla, Spain, 41013;
| | | | - Manuel Avilés
- Universidad de Sevilla, 16778, Ciencias Agroforestales, E.T.S.I.A., Ctra. Utrera S/N, Sevilla, Sevilla, Spain, 41013;
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18
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Tammi R, Kaartinen NE, Harald K, Maukonen M, Tapanainen H, Smith-Warner SA, Albanes D, Eriksson JG, Jousilahti P, Koskinen S, Laaksonen MA, Heikkinen S, Pitkäniemi J, Pajari AM, Männistö S. Partial substitution of red meat or processed meat with plant-based foods and the risk of colorectal cancer. Eur J Epidemiol 2024:10.1007/s10654-024-01096-7. [PMID: 38253935 DOI: 10.1007/s10654-024-01096-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 01/02/2024] [Indexed: 01/24/2024]
Abstract
OBJECTIVES Shifting from animal-based to plant-based diets could reduce colorectal cancer (CRC) incidence. Currently, the impacts of these dietary shifts on CRC risk are ill-defined. Therefore, we examined partial substitutions of red or processed meat with whole grains, vegetables, fruits or a combination of these in relation to CRC risk in Finnish adults. METHODS We pooled five Finnish cohorts, resulting in 43 788 participants aged ≥ 25 years (79% men). Diet was assessed by validated food frequency questionnaires at study enrolment. We modelled partial substitutions of red (100 g/week) or processed meat (50 g/week) with corresponding amounts of plant-based foods. Cohort-specific hazard ratios (HR) for CRC were calculated using Cox proportional hazards models and pooled together using random-effects models. Adjustments included age, sex, energy intake and other relevant confounders. RESULTS During the median follow-up of 28.8 years, 1124 CRCs were diagnosed. We observed small risk reductions when red meat was substituted with vegetables (HR 0.97, 95% CI 0.95 - 0.99), fruits (0.97, 0.94 - 0.99), or whole grains, vegetables and fruits combined (0.97, 0.95 - 0.99). For processed meat, these substitutions yielded 1% risk reductions. Substituting red or processed meat with whole grains was associated with a decreased CRC risk only in participants with < median whole grain intake (0.92, 0.86 - 0.98; 0.96, 0.93 - 0.99, respectively; pinteraction=0.001). CONCLUSIONS Even small, easily implemented substitutions of red or processed meat with whole grains, vegetables or fruits could lower CRC risk in a population with high meat consumption. These findings broaden our insight into dietary modifications that could foster CRC primary prevention.
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Affiliation(s)
- Rilla Tammi
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare (THL), P.O. Box 30, Helsinki, 00271, Finland.
| | - Niina E Kaartinen
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare (THL), P.O. Box 30, Helsinki, 00271, Finland
| | - Kennet Harald
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare (THL), P.O. Box 30, Helsinki, 00271, Finland
| | - Mirkka Maukonen
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare (THL), P.O. Box 30, Helsinki, 00271, Finland
| | - Heli Tapanainen
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare (THL), P.O. Box 30, Helsinki, 00271, Finland
| | - Stephanie A Smith-Warner
- Departments of Nutrition and Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Demetrius Albanes
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health (NIH), Bethesda, MD, USA
| | - Johan G Eriksson
- Department of General Practice and Primary Health Care, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Folkhälsan Research Center, University of Helsinki, Helsinki, Finland
- Department of Obstetrics and Gynaecology and Human Potential Translational Research programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Agency for Science, Technology and Research, Singapore Institute for Clinical Sciences (SICS), A*STAR, Singapore, Singapore
| | - Pekka Jousilahti
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare (THL), P.O. Box 30, Helsinki, 00271, Finland
| | - Seppo Koskinen
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare (THL), P.O. Box 30, Helsinki, 00271, Finland
| | - Maarit A Laaksonen
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare (THL), P.O. Box 30, Helsinki, 00271, Finland
- School of Public Health, Faculty of Medicine, University of Sydney, Sydney, NSW, Australia
| | - Sanna Heikkinen
- Finnish Cancer Registry, Institute for Statistical and Epidemiological Cancer Research, Helsinki, Finland
| | - Janne Pitkäniemi
- Finnish Cancer Registry, Institute for Statistical and Epidemiological Cancer Research, Helsinki, Finland
- Health Sciences Unit, Faculty of Social Sciences, Tampere University, Tampere, Finland
- Department of Public Health, University of Helsinki, Helsinki, Finland
| | - Anne-Maria Pajari
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - Satu Männistö
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare (THL), P.O. Box 30, Helsinki, 00271, Finland
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Cieniewicz E, Schnabel E, Powell G, Snipes Z, Schnabel G. Detection and characterization of Xylella fastidiosa subsp. fastidiosa in rabbiteye blueberry in South Carolina. Plant Dis 2024. [PMID: 38254326 DOI: 10.1094/pdis-11-23-2392-sc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Xylella fastidiosa causes bacterial leaf scorch in southern highbush (Vaccinium corymbosum interspecific hybrids) and is also associated with a distinct disease phenotype in rabbiteye blueberry (V. virgatum) cultivars in the southeastern U.S. Both subspecies X.f. fastidiosa and X.f. multiplex have been reported to cause problems in southern highbush blueberry, but so far only X.f. multiplex has been reported in rabbiteye cultivars in Louisiana. In this study, we report detection of X. fastidiosa in rabbiteye blueberry plants in association with symptoms of foliar reddening and shoot dieback. High throughput sequencing of a X. fastidiosa-positive plant sample and comparative analyses identified the strain in one of these plants as being X. fastidiosa subspecies fastidiosa. We briefly discuss the implications of these findings, which may spur research into blueberry as a potential inoculum source that could enable spread to other susceptible fruit crops in South Carolina.
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Affiliation(s)
- Elizabeth Cieniewicz
- Clemson University, Plant and Environmental Sciences, 105 Collings St., 216 Biosystems Research Complex, Clemson, South Carolina, United States, 29634;
| | - Elise Schnabel
- Clemson University, 2545, Plant and Environmental Sciences, Clemson, South Carolina, United States;
| | - Garner Powell
- Clemson University College of Agriculture Forestry and Life Sciences, 114625, Plant and Environmental Sciences, Clemson, South Carolina, United States;
| | - Zachary Snipes
- Clemson University, 2545, Clemson Cooperative Extension, Charleston, South Carolina, United States;
| | - Guido Schnabel
- Clemson University, Entomology, Soils, and Plant Sciences, 120 Long Hall, Clemson, South Carolina, United States, 29634-0315;
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20
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Liu W, Chen Y, Liu F, Yin X, Cai J, Xia Y, Yu J, Jing G, Li W, Liu W. Effect of resolution enhancement using metal ion assisted strategy based on electrospray ionization-ion mobility spectrometry: A case study of carbendazim and thiabendazole in fruits. Talanta 2024; 267:125151. [PMID: 37672988 DOI: 10.1016/j.talanta.2023.125151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 08/04/2023] [Accepted: 09/01/2023] [Indexed: 09/08/2023]
Abstract
A method for the rapid and simultaneous determination of carbendazim and thiabendazole residues by electrospray ionization-ion mobility spectrometry (ESI-IMS) combined with a metal ion-assisted technique was developed and validated in different fruit matrices. The metal ion assisted strategy was performed instead of tedious pre-separation procedures to overcome the limitation of low resolution of IMS. Four transition metal cations, Co(II), Ni(II), Cu(II), and Zn(II), were screened and their interactions with carbendazim and thiabendazole were investigated. The injection flow rate and metal ion concentration were optimized. The Cu(II) assisted approach helped to achieve well-separated peaks with a peak-to-peak resolution of 3.61. This method was then applied to detect carbendazim and thiabendazole simultaneously in apples, pears, bananas, and mangoes. The limit of detection (LOD) were 0.03 mg kg-1 and 0.13 mg kg-1 for carbendazim and thiabendazole, respectively, while spiked recoveries were 61.5-122.0% and 83.5-119.8%, respectively, with RSDs less than 13.9%. These satisfactory evaluation parameters indicated that the approach was capable of performing quantitative analysis of multi-pesticide residues. In addition, the feasibility of using metal ion assisted-ESI-IMS for the simultaneous detection also was theoretically demonstrated through molecular electrostatic potential analysis and binding energy calculation based on density functional theory (DFT). Both experimental and theoretical results revealed the effectiveness of the metal ion assisted strategy in improving the resolution of ESI-IMS.
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Affiliation(s)
- Wen Liu
- School of Chemical Engineering, Xiangtan University, Xiangtan, 411105, China.
| | - Yanjing Chen
- School of Chemical Engineering, Xiangtan University, Xiangtan, 411105, China
| | - Fei Liu
- School of Chemical Engineering, Xiangtan University, Xiangtan, 411105, China
| | - Xurong Yin
- School of Chemical Engineering, Xiangtan University, Xiangtan, 411105, China
| | - Jiayi Cai
- School of Chemical Engineering, Xiangtan University, Xiangtan, 411105, China
| | - Yong Xia
- School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou, 412007, China
| | - Jianna Yu
- School of Chemical Engineering, Xiangtan University, Xiangtan, 411105, China
| | - Guoxing Jing
- School of Chemical Engineering, Xiangtan University, Xiangtan, 411105, China
| | - Wenshan Li
- School of Chemical Engineering, Xiangtan University, Xiangtan, 411105, China
| | - Wenjie Liu
- School of Chemical Engineering, Xiangtan University, Xiangtan, 411105, China.
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21
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King L, Munro P, Xu H, Jones M, Forge T. The root-lesion nematode, Pratylenchus penetrans, affects early growth and physiology of grafted M.9, G.41 and G.935 apple rootstocks similarly under field microplot conditions. Plant Dis 2024. [PMID: 38213117 DOI: 10.1094/pdis-10-23-2027-re] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
The root-lesion nematode, Pratylenchus penetrans, is a ubiquitous parasite of roots of temperate fruit trees. It affects early growth of trees replanted into former orchard sites where populations have built up, and may contribute to decline complexes of older trees. Most British Columbia, Canada apple acreage is planted with M.9 rootstock, but growers are increasingly considering Geneva-series rootstocks such as G.41 and G.935. Among these rootstocks, responses to P. penetrans, specifically, are poorly known. To compare the resistance and tolerance to P. penetrans of G.41, G.935 and M.9 rootstocks ('Ambrosia' scion), a field microplot experiment was established in spring of 2020 at the Summerland Research and Development Centre. The experimental design was a 2 x 3 factorial combination of: P. penetrans inoculation (+/-) and rootstock (G.41, G.935, M.9), with 20 replicate microplots of each of the six treatment combinations arranged in a randomized complete block design. The P. penetrans inoculum was 5400 nematodes per microplot (54 P. penetrans L-1 soil), which is below commonly accepted damage thresholds. Though P. penetrans population densities were lower for the G.41 rootstock by the end of the 2021 growing season, the effects of P. penetrans were similar among rootstocks. In the establishment year (2020), P. penetrans caused significant reductions in aboveground growth. In 2021, shoot growth and root weight were reduced by P. penetrans. The nematode also reduced rates of leaf gas exchange and stem water potential. These data suggest that while G.41 and G.935 may have other horticultural benefits over M.9, they are equally susceptible to P. penetrans at the early stages of tree growth.
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Affiliation(s)
- Lindsay King
- Agriculture and Agri-Food Canada, 6337, Summerland Research and Development Centre, Summerland, British Columbia, Canada
- The University of British Columbia Okanagan, 97950, Biology Department, Kelowna, British Columbia, Canada;
| | - Paige Munro
- Agriculture and Agri-Food Canada, Summerland Research and Development Centre, Summerland, British Columbia, Canada;
| | - Hao Xu
- Agriculture and Agri-Food Canada, Summerland Research and Development Centre, Summerland, British Columbia, Canada;
| | - Melanie Jones
- Kelowna, United States
- The University of British Columbia Okanagan, 97950, Biology Department, Kelowna, British Columbia, Canada;
| | - Thomas Forge
- Agriculture and Agri-Food Canada, Summerland Research and Development Centre, 4200 Highway 97, 6947 Hwy 7, Summerland, British Columbia, Canada, V0H 1Z2;
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22
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Han J, Ding C, Wang B, Teng YM, Huang YT, Yang D, Shi X, Herrera-Balandrano DD, Wang S, Laborda P. First Report of Penicillium oxalicum Causing Leaf Blight on 'Hongyang' Kiwi fruit in China. Plant Dis 2024. [PMID: 38170442 DOI: 10.1094/pdis-07-23-1341-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
In September 2022, leaf blight symptoms (Fig. 1) were detected on six-year-old kiwi trees (Actinidia chinensis cv. 'Hongyang') in Xuzhou municipality (117.29º E, 34.23º N), Jiangsu Province. Early-stage disease symptoms included light brown necrotic lesions of irregular shape ranging in length from 0.2 to 2.4 cm, which turned into leaf blight after approximately 2 weeks. Those symptoms were similar to those previously reported during a Pestalotiopsis sp. infection on kiwi trees in Turkey (Karakaya 2001). Approximately 20% of the leaves from 300 trees examined in one kiwi orchard, 3000 m2 in size, showed the disease symptoms. Ten leading edges of symptomatic leaves were sterilized with 2% sodium hypochlorite for 1 min, rinsed twice with sterile ddH2O and cultured at 26ºC for 3 days on PDA medium containing 50 µg/ml chloramphenicol. The fungal colonies were collected, and the single spore isolation method was used to obtain four isolates. The obtained isolates showed white aerial mycelia that turned greyish after 2 days of cultivation on PDA medium at 26ºC. ITS (OR054113, OR054153-OR054155), TUB2 (OR060951-OR060953, OR249978), and CMD (OR255947-OR255950) genes were amplified using the ITS1/ITS4, BT2a/BT2b and CMD5/CMD6 primers, respectively (Visagie et al. 2014a). The obtained ITS, TUB2, and CMD sequences shared 99.81%-100%, 96.72%-96.96%, and 90.17%-92.58% homology compared to the ex-type strain P. oxalicum CBS 219.30 (MH855125, KF296462, and KF296367), while the obtained ITS and TUB2 sequences showed 99.62%-99.81%, and 96.46%-96.72% identity compared to the representative strain P. oxalicum DTO 179B9 (KJ775647 and KJ775140) (Visagie et al. 2014b). The sequences obtained also showed high homology compared to P. oxalicum HP7-1 (ITS: 99.81%-100% homology; TUB2: 98.98%-99.38% homology; CMD: 94.71%-95.10% homology) (Li et al. 2022). A molecular phylogenetic tree was constructed using MEGA X with representative Penicillium strains retrieved from GenBank (Fig. 2). Microscope observations revealed the presence of curved septate hyphae. Conidia were colorless, unicellular, and ellipsoidal (5-8 μm in length; > 2000 observations), whereas conidiophores were mainly monoverticillate (approximately 20% of the conidiophores were biverticillate) (50-70 μm in length; 43 observations) and contained cylindrical phialides (13-15 μm in length). These findings are consistent with P. oxalicum morphology (Wu et al. 2022; Zheng et al. 2023). The pathogenicity of the four isolates was screened using healthy non-detached 'Hongyang' kiwi leaves. Fifteen leaves from five different two-month-old trees were used for each isolate, with three repetitions. For inoculation, a 10 mL solution containing 1 × 106 spores/mL was sprayed on the leaves. Sterilized water was used in the control experiment, which was carried out using fifteen leaves from five different two-month-old trees, with three repetitions. Inoculated trees were stored at 26ºC and 60% relative humidity for 2 days. All the infected leaves had necrotic lesions and leaf blight symptoms comparable to those found in the field, but the control leaves had no lesions. The pathogen was recovered, and its identity was confirmed by ITS sequencing and morphology analysis, fulfilling Koch's postulates. P. oxalicum is a common cause of blue mould in postharvest fruits (Tang et al. 2020). P. oxalicum has been recently reported as the causal agent of leaf spot in pineapple (Wu et al. 2022; Zheng et al. 2023), and leaf blight on maize (Han et al. 2023). Although Alternaria sp., Glomerella cingulate, Pestalotiopsis sp., Phomopsis sp., and Phoma sp. were previously isolated from kiwi leaves with blight symptoms (Kim et al. 2017), this is the first report of P. oxalicum causing leaf blight on kiwi trees worldwide. P. oxalicum is a well-known source of mycotoxins, such as secalonic acid (Otero et al. 2020), indicating that its presence in kiwifruit orchards may pose a significant risk to human health. The discovery of this hazardous pathogen in kiwi trees must drive the development of management strategies. Kiwifruit is an important dietary source of vitamins, fiber, folate, and potassium, and China is the major producer of kiwifruit, with more than 1.2 million metric tons harvested in 2021. This report will help to generate a better understanding of the pathogens affecting kiwifruit orchards in China.
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Affiliation(s)
- Jiaxin Han
- Nantong University, 66479, College of Life Sciences, 27535, Nantong, China, 226019;
| | - Cheng Ding
- Nantong University, 66479, College of Life Sciences, Nantong, China;
| | - Bo Wang
- Xuzhou Institute of Agricultural Sciences in Jiangsu Xuhuai Distric, 597009, Plant Protection Institute, Xuzhou, China;
| | - Yong-Mei Teng
- Nantong University, 66479, College of Life Sciences, Nantong, China;
| | - Yan-Ting Huang
- Nantong University, 66479, College of Life Sciences, Nantong, China;
| | - Dongjing Yang
- Xuzhou Institute of Agricultural Sciences in Jiangsu Xuhuai Distric, 597009, Plant Protection Institute, Xuzhou, Jiangsu, China;
| | - Xinchi Shi
- Nantong University, 66479, College of Life Sciences, Nantong, China;
| | | | - Suyan Wang
- Nantong University, 66479, College of Life Sciences, No. 9 seyuan road, Nantong, China, 226019;
| | - Pedro Laborda
- Nantong University, 66479, College of Life Sciences, Nantong, China;
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23
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Riley N, Förster H, Adaskaveg J. Regional comparisons of sensitivities of P. citrophthora and P. syringae causing citrus brown rot in California to four new and two older fungicides. Plant Dis 2024. [PMID: 38173255 DOI: 10.1094/pdis-08-23-1556-re] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Isolates of the citrus brown rot pathogens P. citrophthora and P. syringae from the Inland Empire (IE) and Ventura Co. (VE) regions of southern California were evaluated for their sensitivity to ethaboxam, fluopicolide, mandipropamid, and oxathiapiprolin, and the previously published baselines that were generated for Central Valley (CV) isolates of California were expanded. Fungicides were generally more toxic to CV isolates of both species for all four fungicides. Specific differences were found in the toxicity of ethaboxam to P. syringae where CV isolates on average were 6.8 or 8.2 times more sensitive than those from VE or IE regions, respectively. Based on grouping of isolates in an UPGMA dendrogram, as well as fastStructure analyses and plotting of PCAs, differences in ethaboxam sensitivity could be related to differences in genetic background of the isolates. Isolates of P. citrophthora from the IE and VE had slightly reduced (i.e., 1.5X) sensitivity to mandipropamid as compared with isolates from the CV and were found on distinct branches in the UPGMA dendrogram. Differences in genetic background of less sensitive isolates within each species indicate that these two phenotypes emerged multiple times independently. IE and VE isolates of both species were sensitive to mefenoxam. Moderate resistance to potassium phosphite (EC50 values of 25 to 75 µg/ml) was present in IE and VE isolates of P. syringae; whereas some IE isolates of P. citrophthora were considered resistant with EC50 values of up to 113.69 µg/ml. Resistance to potassium phosphite did not relate to distinct genotypes.
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Affiliation(s)
- Nathan Riley
- University of California Riverside, 8790, Microbiology and Plant Pathology, Riverside, California, United States;
| | - Helga Förster
- University of California, Dept of Plant Pathology, Riverside, California, United States, 92521;
| | - James Adaskaveg
- University of California, Plant Pathgology, Riverside, Riverside, California, United States, 92521;
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24
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Wei C, Zhang W, Liang J, Cui L, Cui Z, Wang W, Cheng DJ, Wang X. First Report of Leaf Spot on Cucumis melo L. Caused by Arcopilus aureus in China. Plant Dis 2024. [PMID: 38173266 DOI: 10.1094/pdis-11-23-2343-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Cucumis melo L. is an important fruit with widespread consumption and commercial value. However, an undescribed disease affecting Hami melon (Cucumis melo L. var. Luhoutian) plants has consistently emerged in the Qihe region of Dezhou, Shandong Province of China since 2021. The disease can occur in both seedling and mature stages of Hami melon plants, and in severely diseased areas, the incidence rate was seen as 40 to 80%. During the seedling stage, the initial symptom is the appearance of water-soaked spots on the leaves. As the disease progresses, the leaves develop necrotic spots, and severely affected plants may exhibit stem rot and decay. In the mature stage, the disease primarily affects the leaves, causing necrotic spots and chlorosis. Under conditions of high humidity, black mold can be observed in the affected areas. Small pieces of symptomatic leaves from six different infected plants were collected and surface-sterilized with 5% NaClO for 3 min and 75% alcohol for 30 s for pathogen isolation (Wang et al., 2020). After rinsing with sterile water and blotted on sterile filter paper, the tissues were established on potato dextrose agar (PDA) media and incubated at 28℃ for 3-4 days. Pure isolates showed up at PDA were obtained through single-spore isolation. Colonies of all 16 isolates obtained by single-spore isolation had similar morphological characteristics on the PDA medium, the mycelium of the isolate appears dense and yellowish-brown on the PDA medium, and also secretes a brownish-red pigment on PDA. Under the opticalmicroscope, the perithecia from PDA media are subglobose spherical in shape, 80-100 μm in diameter, brownish by reflected light, wholly and densely hairy. Terminal hairs are very dense, greyish by reflected light, olive brown to reddish brown by transmitted light, thick-walled, arcuate, circinate, or spirally coiled at the apex. The ascospores within the perithecia are elliptical or droplet-shaped, initially colorless hyaline but later becoming subhyaline slightly gray, with dimensions of 7-9 μm × 4-5 μm. The morphological characteristics of the isolates were consistent with the description of Arcopilus aureus (Wang et.al. 2016). The internal transcribed spacer (ITS) region and β-tubulin genes of three randomly selected isolates were PCR amplified and sequenced using primers ITS4/ITS5 and Bt2a/Bt2b. The sequences of ITS and β-tubulin genes were submitted to NCBI with GenBank Accession No. OR539527 and OR640972, respectively. Based on morphological features and phylogenetic analysis, we concluded that the isolates belonged to A. aureus. Pathogenicity tests were conducted by placing agar plugs-containing fungal mycelia and agar blocks (control) on leaves of Hami melon seedlings (n=12) grown at 28°C with 60% humidity in a greenhouse, the assay was repeated three times. Symptoms appeared on the pathogen-inoculated leaves seven days after inoculation, whereas the control treatment remained symptomless. The pathogens were reisolated from diseased leaves and identified as A. aureus based on morphological, and molecular phylogenetic analysis, while Koch'sostulate was used to confirm its life mode. To the best of our knowledge, this is the first report of leaf spot caused by A. aureus on Cucumis melo L. in China.
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Affiliation(s)
| | - Wenhui Zhang
- Linyi University, 165082, Linyi, Shandong, China
- Philippine Christian University Center for International Education, Malate, Philippines;
| | - Jinchang Liang
- Chinese Academy of Agricultural Sciences Institute of Tobacco Research, 243822, Qingdao, Shandong, China;
| | - Lizheng Cui
- Chinese Academy of Agricultural Sciences Institute of Tobacco Research, 243822, Qingdao, Shandong, China;
| | - Zhenzhen Cui
- Chinese Academy of Agricultural Sciences Institute of Tobacco Research, 243822, Qingdao, Shandong, China;
| | - Wenjing Wang
- Chinese Academy of Agricultural Sciences Institute of Tobacco Research, 243822, Qingdao, Shandong, China;
| | - De-Jie Cheng
- Guangxi University, 12664, Plant Protection, Agricultural College of Guangxi University, Nanning City, Guangxi Province, China, Nanning, China, 530005;
| | - Xiaoqiang Wang
- plant protection, keyuan jing forth road, laoshan district, qingdao, shandong, China, 276000;
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25
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Wang T, Yi X, Wu Y, He Y, Hong N, Wang G, Wang L. First Report of Lasiodiplodia pseudotheobromae Causing Necrosis and Canker Disease on Pear Tree in China. Plant Dis 2024. [PMID: 38173267 DOI: 10.1094/pdis-10-23-2217-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Pear is popular among people, which is an important pillar industry in China. In March of 2023, dark brown necrotic lesions were discovered on the trunks of Pyrus pyrofolia cv. Osmanthus pear in orchard, Liuzhou City, Guangxi Zhuang Autonomous Region. In August, field investigation and sample collection were conducted in orchard. Forty pear trees were selected for symptomatic observation, which of 21 had lesions ranging from 10 to 24 per tree, and 19 with 1 to 8 lesions, respectively. To isolate the pathogen, small tissue pieces of 3 diseased pear trunk samples were disinfected with 75% ethanol for 1 minute, rinsed with sterile water, and dried with filter paper. The tissue pieces were placed on potato dextrose agar (PDA) plates and cultured in a dark incubator at 25℃. Six isolates with the similar morphology were obtained. One of the six isolates was randomly selected as the representative strain and named as GX-3. Mycelium grows with an average rate of 4.26 cm/d. The hypha is highly aerial, and is initially white and then turns black. Subsequently, pycnidia formed and secreted black mucus on the PDA medium after 28 days. The immature conidia were ellipsoid, colorless, hyaline, and unicellular, mostly becoming brown bicellular with longitudinal stripes at maturity. The conidial size was 22.5 to 32.6×12.1 to 19.7μm, and the average size was 28.4±2.3×16.7±2.0 μm (n=50), respectively. GX-3 colony morphology was consistent with that of Lasiodiplodia pseudotheobromae (Alves et al.2008). For molecular identification, the internal transcribed spacer of rDNA (ITS), translation elongation factor 1-α (TEF1-α), and β-tubulin regions were amplified using the primers ITS1/4, EF1-728F/986R, and Bt2a/Bt2b, respectively (White et al.1990; Carbone and Kohn 1999; Glass and Donaldson 1995). The obtained sequences of GX-3 were deposited in NCBI with Accession numbers OR655421, OR661231, and OR661230, respectively. The sequences of ITS, TEF1-α, and β-tubulin from GX-3 are 99.44%、99.67% and 99.78% identities with those of L. pseudotheobromae CBS 447.62, respectively. The phylogenetic analysis was performed by maximum likelihood method, revealing that GX-3 is closely clustered with the isolates of L. pseudotheobromae. Therefore, the GX-3 strain was identified as L. pseudotheobromae. GX-3 was further analyzed for its pathogenicity on pear. Firstly, the GX-3 mycelium plugs and spraying spore suspension with the concentration of 1×107 conidia/ml were applied on the stems of 4-month-old healthy birch-leaf pear (Pyrus betulifolia Bunge) potted seedlings by acupuncture needle method, meanwhile PDA and sterile water were used as controls. After 3 days of inoculation, stem surface of the birch-leaf pear exhibited dark brown lesions with slight surface depression, obvious dryness, and canker symptoms, while the control treatment showed no symptoms. The GX-3 was also inoculated on in vitro branches of 'Hosui', 'Hongxiangsu', 'Bodoqing' and 'Xuehua', showing dark brown canker lesions. The same pathogen can be successfully isolated from diseased stems and branches but not from the controls, which accomplishes Koch's postulates. L. pseudotheobromae has been widely reported that it can cause rot and canker on apple, walnut, hackberry, and so on (Xue et al. 2019; Wang et al. 2023; Liang et al. 2020). This is the first report of necrosis and canker disease caused by L. pseudotheobromae on pear in China, which is a potential threat to pear industry.
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Affiliation(s)
- Tianhao Wang
- Huazhong Agricultural University, 47895, College of Plant Science and Technology, Wuhan, Hubei , China;
| | - Xianrong Yi
- Department of Agriculture and Rural Affairs of Guangxi Zhuang Autonomous Region, 636602, Guangxi Characteristic Crop Research Institute, Guilin, Guangxi, China;
| | - Yuxiang Wu
- Huazhong Agricultural University, 47895, College of Plant Science and Technology, Wuhan, Hubei , China;
| | - Ying He
- Huazhong Agricultural University, 47895, College of Plant Science and Technology, Wuhan, Hubei , China;
| | - Ni Hong
- Huazhong Agricultural University, College of Plant Science and Technology , Wuhan, Hubei, China, Wuhan, HuBei, China, 430070;
| | - Guoping Wang
- Huazhong Agricultural University, 47895, College of Plant Science and Technology, Wuhan, Hubei , China;
| | - Liping Wang
- Huazhong Agricultural University, 47895, College of Plant Science and Technology, Wuhan, Hubei , China;
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26
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Tantisuwanichkul K, Sirikantaramas S. Genome-wide analysis of carotenoid cleavage oxygenases and identification of ripening-associated DzNCED5a in durian (Durio zibethinus) fruit. Plant Physiol Biochem 2024; 206:108253. [PMID: 38086212 DOI: 10.1016/j.plaphy.2023.108253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 11/11/2023] [Accepted: 11/28/2023] [Indexed: 02/15/2024]
Abstract
Durian (Durio zibethinus L.), popularly known as the "King of fruits," holds significant economic importance in Southeast Asia, including Thailand. During its ripening process, the phytohormone abscisic acid (ABA) content has been reported to increase. However, a comprehensive understanding of ABA's specific role in durian fruit ripening remains elusive. Furthermore, little is known about the molecular aspects of the carotenoid cleavage pathway in this iconic fruit. Therefore, we performed genome-wide identification of the carotenoid cleavage oxygenase (CCO) family in durian. This family includes the nine-cis-epoxycarotenoid dioxygenases (NCEDs) responsible for ABA production and the carotenoid cleavage dioxygenases exhibiting diverse substrate specificities. Through phylogenetic analysis, we classified 14 CCOs in durian into 8 distinct subfamilies. Notably, each DzCCO subfamily displayed a conserved motif composition. Cis-acting element prediction showed that cis-elements related to plant hormones and environmental stress responses were distributed in the DzCCO promoter. In addition, transcriptome analysis was performed to examine the expression pattern during the fruit development and ripening stages. Interestingly, DzNCED5a, a ripening-associated gene, exhibited the highest expression level at the ripe stage, outperforming other CCOs. Its expression markedly correlated with increased ABA contents during the ripening stages of both the "Monthong" variety and other durian cultivars. Transiently expressed DzNCED5a in Nicotiana benthamiana leaves confirmed its function in ABA biosynthesis. These findings highlight the involvement of DzNCED5a in ABA production and its potential importance in durian fruit ripening. Overall, this study provides insights into the significance of CCOs in durian fruit ripening.
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Affiliation(s)
- Kittiya Tantisuwanichkul
- Center of Excellence in Molecular Crop, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Supaart Sirikantaramas
- Center of Excellence in Molecular Crop, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand; Omics Sciences and Bioinformatics Center, Chulalongkorn University, Bangkok, Thailand.
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Yu H, Lee CM, Oh SW. Fruits and the Risk of Type 2 Diabetes: The Korean Genome and Epidemiology Study Cohort. Korean J Fam Med 2024; 45:44-50. [PMID: 37993763 PMCID: PMC10822724 DOI: 10.4082/kjfm.23.0201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 10/16/2023] [Indexed: 11/24/2023] Open
Abstract
BACKGROUND To determine the association between type 2 diabetes mellitus and the consumption of various fruits. METHODS The Korean Genome And Epidemiology Study is an ongoing prospective longitudinal cohort study of community dwellers and participants (men and women, aged 40-69 years) recruited from the national health examinee registry of Korea. Their individual consumption habits for 12 different fruit types were recorded using food frequency questionnaires. The fruits were then divided into three groups according to their glycemic indexes and glycemic loads. Participants with extreme caloric intakes, pre-existing type 2 diabetes mellitus, chronic kidney diseases, chronic liver diseases, and ongoing cancer treatments were excluded. The incidence of type 2 diabetes in the cohort was identified through self-reporting and supplemented by glycated hemoglobin and fasting blood glucose levels. RESULTS A total of 2,549 cases of type 2 diabetes were documented during 283,033.8 person-years of follow-up. After adjusting for personal, lifestyle, and dietary risk factors for diabetes, the pooled hazard ratio of type 2 diabetes for every serving per week of total whole fruit consumption was 1.02 (95% confidence interval [CI], 0.99-1.06; P=0.2). With mutual adjustment of individual fruits, the pooled hazard ratios of type 2 diabetes for every serving per week were 0.94 (95% CI, 0.88-1.00; P=0.039) for bananas, and 0.90 (95% CI, 0.84-0.96; P<0.001) for grapes. CONCLUSION Our findings suggest associations between the consumption of certain fruits and the risk of developing type 2 diabetes. A greater consumption of grapes was significantly associated with a lower risk of type 2 diabetes in our cohort, but the total amount of fruit consumption was not associated with a reduced risk.
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Affiliation(s)
- Hojun Yu
- Department of Family Medicine, Seoul National University Hospital, Seoul, Korea
| | - Cheol Min Lee
- Department of Family Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
- Department of Family Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Seung-Won Oh
- Department of Family Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
- Department of Family Medicine, Seoul National University College of Medicine, Seoul, Korea
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Seebunrueng K, Tamuang S, Jarujamrus P, Saengsuwan S, Patdhanagul N, Areerob Y, Sansuk S, Srijaranai S. Eco-friendly thermosensitive magnetic-molecularly-imprinted polymer adsorbent in dispersive solid-phase microextraction for gas chromatographic determination of organophosphorus pesticides in fruit samples. Food Chem 2024; 430:137069. [PMID: 37562262 DOI: 10.1016/j.foodchem.2023.137069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 07/25/2023] [Accepted: 07/30/2023] [Indexed: 08/12/2023]
Abstract
A thermosensitive magnetic-molecularly-imprinted polymer (TMMIP) was successfully prepared in an aqueous medium. The TMMIP was applied as an effective adsorbent in dispersive solid-phase microextraction for the selective enrichment of five organophosphorus pesticides (OPPs; diazinon, fenitrothion, fenthion, parathion-ethyl, and ethion) before analysis by gas chromatography. The polymerization was performed using mixed-valence iron hydroxide nanoparticles as the magnetic support, N-isopropyl acrylamide as the thermosensitive monomer, ethion as the template, and methacrylic acid as the functional monomer. The adsorption and desorption mechanisms of OPPs depend on their interactions with the adsorbents and solution temperature. Our methodology provides good linearity (0.50-2000 µgL-1), with a correlation determination of R2 > 0.9980, low limit of detection (0.25-0.50 µgL-1), low limit of quantitation (0.50-1.50 μg L-1), and high precision (%RSD < 7%). The developed method demonstrates excellent applicability for accurately and efficiently determining OPP residuals in fruit and vegetable samples with good recoveries (93-117%).
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Affiliation(s)
- Ketsarin Seebunrueng
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani 34190, Thailand.
| | - Suparb Tamuang
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani 34190, Thailand
| | - Purim Jarujamrus
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani 34190, Thailand; Nanomaterials Science, Sensors & Catalysis for Problem-Based Projects, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani 34190, Thailand
| | - Sayant Saengsuwan
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani 34190, Thailand
| | - Nopbhasinthu Patdhanagul
- General Science Department, Faculty of Science and Engineering, Kasetsart University, Sakon Nakhon 47000, Thailand
| | - Yonrapach Areerob
- Department of Industrial Engineering, School of Engineering, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand
| | - Sira Sansuk
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Supalax Srijaranai
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
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Li Y, Liu J, Li J, Xiao H, Xu Y, Fan S, Xie Z, Guo M, Yang J, Jing X, Cheng C. Chemical characterization and discovery of novel quality markers in Citrus aurantium L. fruit from traditional cultivation areas in China using GC-MS-based cuticular waxes analysis. Food Chem X 2023; 20:100890. [PMID: 38144759 PMCID: PMC10740023 DOI: 10.1016/j.fochx.2023.100890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/12/2023] [Accepted: 09/19/2023] [Indexed: 12/26/2023] Open
Abstract
Citrus aurantium L. fruit is a commonly used Chinese medicine whose therapeutic effects tends to be affected by growing conditions. In order to gain insights into the effects of growing location on the cuticular wax composition of C. aurantium L. fruit, we analyzed the differences in the wax composition of its fruits collected from different regions. The findings showed that the cuticular waxes in the fruit peels were mainly composed of fatty acids, which differed quantitatively in the chemical profiles of C. aurantium L. samples from different geographical conditions. Particularly, the concentrations of linoleic acid and stearic acid in the total component content of the fruit peel were above 1%, with a greater level in the geo-authentic samples. Thus, GC-MS-based wax analysis was first used for the chemical characterization and quantification of cuticular waxes, which could be considered as a rapid way for evaluating the quality of medicinal fruits.
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Affiliation(s)
- Yan Li
- Lushan Botanical Garden, Chinese Academy of Science, Jiujiang City, Jiangxi Province, PR China
- School of Food and Pharmaceutical Engineering, Zhaoqing University, Zhaoqing City, Guangdong Province, PR China
| | - Jie Liu
- Lushan Botanical Garden, Chinese Academy of Science, Jiujiang City, Jiangxi Province, PR China
| | - Jie Li
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macao, PR China
- School of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing City, Guangdong Province, PR China
| | - Haijing Xiao
- Lushan Botanical Garden, Chinese Academy of Science, Jiujiang City, Jiangxi Province, PR China
| | - Yiyun Xu
- Lushan Botanical Garden, Chinese Academy of Science, Jiujiang City, Jiangxi Province, PR China
| | - Siqing Fan
- Lushan Botanical Garden, Chinese Academy of Science, Jiujiang City, Jiangxi Province, PR China
| | - Zhaoqi Xie
- Lushan Botanical Garden, Chinese Academy of Science, Jiujiang City, Jiangxi Province, PR China
| | - Min Guo
- Lushan Botanical Garden, Chinese Academy of Science, Jiujiang City, Jiangxi Province, PR China
| | - Jiaxin Yang
- Lushan Botanical Garden, Chinese Academy of Science, Jiujiang City, Jiangxi Province, PR China
| | - Xue Jing
- Jiujiang Academy of Agricultural Sciences, Jiujiang City, Jiangxi Province, PR China
| | - Chunsong Cheng
- Lushan Botanical Garden, Chinese Academy of Science, Jiujiang City, Jiangxi Province, PR China
- National Resource Center for Chinese Materia Medica, Chinese Academy of Chinese Medical Sciences, Beijing, PR China
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Liu S, Liu FC, Li JX, Huang KY, Yang XL, Chen JC, Cao J, Chen SF, Huang JF, Shen C, Lu XF, Gu DF. Association between Fruit and Vegetable Intake and Arterial Stiffness: The China-PAR Project. Biomed Environ Sci 2023; 36:1113-1122. [PMID: 38199223 DOI: 10.3967/bes2023.143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Accepted: 08/29/2023] [Indexed: 01/12/2024]
Abstract
Objective This study aimed to investigate the association between fruit and vegetable intake and arterial stiffness. Methods We conducted a cohort-based study comprising 6,628 participants with arterial stiffness information in the Prediction for Atherosclerotic Cardiovascular Disease Risk in China (China-PAR) project. A semi-quantitative food-frequency questionnaire was used to assess baseline (2007-2008) and recent (2018-2021) fruit and vegetable intake. We assessed changes in fruit and vegetable intake from 2007-2008 to 2018-2021 in 6,481 participants. Arterial stiffness was measured using the arterial velocity-pulse index (AVI) and arterial pressure-volume index (API). Elevated AVI and API values were defined according to diverse age reference ranges. Results Multivariable-adjusted linear regression models revealed that every 100 g/d increment in fruit and vegetable intake was associated with a 0.11 decrease in AVI ( B= -0.11; 95% confidence interval [ CI]: -0.20, -0.02) on average, rather than API ( B = 0.02; 95% CI: -0.09, 0.13). The risk of elevated AVI (odds ratio [ OR] = 0.82; 95% CI: 0.70, 0.97) is 18% lower in individuals with high intake (≥ 500 g/d) than in those with low intake (< 500 g/d). Furthermore, maintaining a high intake in the past median of 11.5 years of follow-up was associated with an even lower risk of elevated AVI compared with a low intake at both baseline and follow-up ( OR = 0.64; 95% CI: 0.49, 0.83). Conclusion Fruit and vegetable intake was negatively associated with arterial stiffness, emphasizing recommendations for adherence to fruit and vegetable intake for the prevention of arterial stiffness.
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Affiliation(s)
- Shuai Liu
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China;Key Laboratory of Cardiovascular Epidemiology & Department of Epidemiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Fang Chao Liu
- Key Laboratory of Cardiovascular Epidemiology & Department of Epidemiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Jian Xin Li
- Key Laboratory of Cardiovascular Epidemiology & Department of Epidemiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Ke Yong Huang
- Key Laboratory of Cardiovascular Epidemiology & Department of Epidemiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Xue Li Yang
- Tianjin Key Laboratory of Environment, Nutrition and Public Health; Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Ji Chun Chen
- Key Laboratory of Cardiovascular Epidemiology & Department of Epidemiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Jie Cao
- Key Laboratory of Cardiovascular Epidemiology & Department of Epidemiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Shu Feng Chen
- Key Laboratory of Cardiovascular Epidemiology & Department of Epidemiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Jian Feng Huang
- Key Laboratory of Cardiovascular Epidemiology & Department of Epidemiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Chong Shen
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China;Research Units of Cohort Study on Cardiovascular Diseases and Cancers, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Xiang Feng Lu
- Key Laboratory of Cardiovascular Epidemiology & Department of Epidemiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China;Research Units of Cohort Study on Cardiovascular Diseases and Cancers, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Dong Feng Gu
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China;Key Laboratory of Cardiovascular Epidemiology & Department of Epidemiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China;School of Medicine, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China
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Zhang S, Wang B, Cao Y, Ji Y, Sun Q, Shi X, Herrera-Balandrano DD, Laborda P. First Report of Fusarium luffae Causing Leaf Blight on Loquat in Eastern China. Plant Dis 2023. [PMID: 38115563 DOI: 10.1094/pdis-07-23-1246-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
During May-June 2021 and 2022, leaf blight symptoms were observed on loquat leaves (Eriobotrya japonica cv. 'Mogi') in Jiangsu Province (Xuzhou municipality, 117.17° E, 34.13° N) in China. Approximately 10% of the leaves on the two hundred trees studied in a six-year-old loquat orchard exhibited round lesions that changed from light yellow to reddish-brown in 8-10 days. Approximately 3% of the infected leaves exhibited numerous lesions that coalesced, leading to expansive blighted areas. Twenty-five samples of symptomatic tissue, approximately 0.2 cm2 in size, were collected in May 2022 from five different trees (five samples per tree), sterilized in 2% NaOCl for 1 min, washed twice with sterilized ddH2O, and incubated at 26°C for 5 days on PDA medium containing 50 µg/mL chloramphenicol. Six isolates were obtained via single spore isolation. ITS (OQ954852-OQ954857), TUB2 (OQ968488-OQ968493), EF1-α (OQ971890-OQ971895), RPB1 (OQ971896-OQ971901), and RPB2 (OR037266-OR037271) genes were amplified using the ITS1/ITS4, T1/T22, EF1-728F/EF1-986R, RPB1-R8/RPB1-F5, and fRPB2-7CF/fRPB2-11aR primers, respectively (O'Donnell et al. 2010). The species was identified using the Fusarioid ID database (Crous et al. 2021), revealing that all obtained isolates showed high homology to representative F. luffae strains. Upon combining the ITS, TUB2, EF1-α, RPB1, and RPB2 sequences, the isolates showed 99.42%-97.85% and 99.59%-98.10% identity to F. luffae CGMCC 3.19497 (ex-type strain) and NRRL 32522, respectively. A molecular phylogenetic tree was constructed using MEGA X, with a selection of representative Fusarium strains. Microscope observations showed septate mycelium, microconidia (6.86 ± 0.91 µm length, 1.67 ± 0.24 µm width, containing 1 septum; number of observations = 21), fusiform macroconidia (15.88 ± 1.43 µm length, 1.66 ± 0.24 µm width, containing 1 septum; number of observations = 45), and linear chlamydospores (79.36 ± 28.36 µm length, 12.03 ± 3.37 µm width; number of observations = 152). These observations are consistent with the morphology of F. luffae (Wang et al. 2019). All isolates exhibited identical morphological characteristics. All isolates were evaluated for pathogenicity in vivo using healthy non-detached loquat leaves. A total of 15 leaves from 5 different three-month-old 'Mogi' loquat trees were used for each isolate. Experiments were performed three times. A suspension of 1 × 106 spores/mL obtained from a seven-day-old colony (10 mL per 15 leaves), was sprayed on non-wounded leaves for inoculation. Sterilized ddH2O was used in the control experiment. Inoculated trees were stored at 26°C and 70% relative humidity for four days. Leaf blight symptoms were observed in all inoculated leaves, and the symptoms were observed in all repeated trials. The pathogen was recovered, and its identity was confirmed by ITS sequencing and morphological analysis, fulfilling Koch's postulates. In recent years, F. luffae has been reported to cause fruit rot on muskmelon, flower rot on kiwifruit, soybean pod rot, and leaf spot on cherry in China (Yu et al. 2022; Zhang et al. 2022; Zhao et al. 2022; Zhou et al. 2022), demonstrating the host promiscuity of this pathogen. Although F. solani has been identified as the causal agent of root rot and fruit rot on loquat (Abbas et al. 2017; Wu et al. 2021), this is the first report of F. luffae causing leaf blight on loquat worldwide. This report will help to understand the pathogens affecting loquat orchards in China.
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Affiliation(s)
- Shiling Zhang
- Nantong University, 66479, College of Life Sciences, Nantong, China;
| | - Bo Wang
- Xuzhou Institute of Agricultural Sciences, Xuzhou, China;
| | - Ying Cao
- Nantong University, 66479, College of Life Sciences, Nantong, China;
| | - Yanping Ji
- Nantong University, 66479, College of Life Sciences, Nantong, China;
| | - Qing Sun
- Nantong University, 66479, College of Life Sciences, Nantong, China;
| | - Xinchi Shi
- Nantong University, 66479, College of Life Sciences, Nantong, China;
| | | | - Pedro Laborda
- Nantong University, 66479, College of Life Sciences, Nantong, China;
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Zhang Y, Zhang N, Gao C, Cheng Y, Guan Y, Wei C, Guan J. The fungal diversity and potential pathogens associated with postharvest fruit rot of 'Huangguan' pear ( Pyrus bretschneideri Rehd.) in Hebei Province, China. Plant Dis 2023. [PMID: 38115565 DOI: 10.1094/pdis-08-23-1528-re] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Postharvest fruit rot caused by pathogens is a serious problem in pear industry. This study investigated the fungal diversity, main pathogens, and identified a new pathogen in the stored 'Huangguan' pear (Pyrus bretschneideri Rehd.), the dominant pear variety in northern China. We sampled 20 refrigeration houses from five main producing regions in Hebei Province and used Illumina sequencing technology to detect the fungal composition. Alternaria (56.3%) was the most abundant fungus, followed by Penicillium (9.2%) and Monilinia (6.2%). We also isolated and identified nine strains of Alternaria and four strains of Penicillium. Moreover, we observed a new postharvest fruit disease in 'Huangguan' pear caused by Stemphylium eturmiunum, which was confirmed by phylogenetic analysis by combining the sequences of three conserved genes, including ITS, gapdh and calmodulin. This study marks the first documentation of S. eturmiunum causing fruit rot in 'Huangguan' pears, offering valuable insights for identifying and controlling this newly identified postharvest disease.
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Affiliation(s)
- Yang Zhang
- No.598, Heping West Road, Shijiazhuang, China.Shijiazhuang, China, 050051;
| | - Nan Zhang
- Hebei Academy of Agriculture and Forestry Sciences, 91600, Shijiazhuang, China;
| | - Congcong Gao
- Hebei Academy of Agriculture and Forestry Sciences, 91600, Shijiazhuang, China;
| | - Yudou Cheng
- Hebei Academy of Agriculture and Forestry Sciences, 91600, Shijiazhuang, China;
| | - Yeqing Guan
- Hebei Academy of Agriculture and Forestry Sciences, 91600, Shijiazhuang, China;
| | - Chuangqi Wei
- Hebei Academy of Agriculture and Forestry Sciences, 91600, Shijiazhuang, China;
| | - Junfeng Guan
- Hebei Academy of Agriculture and Forestry Sciences, 91600, No.598, Heping West Road, Shijiazhuang, China., Shijiazhuang, China, 050051;
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Cisneros-Zambrano A, Mendoza-Churape J, Contreras-Cornejo HA, Raya-Montaño YA, Martínez-González CR, Valenzuela-Garza R, Raymundo T, Vargas-Sandoval M, Ruiz-Valencia JA, Lara Chávez MBN. First report of Irpex rosettiformis causing white root rot in avocado trees in Michoacán, México. Plant Dis 2023. [PMID: 38115570 DOI: 10.1094/pdis-09-23-1977-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
In México, avocado production is an important economic source. In the last season it generated $ 3. 27 billion USD of foreign currency in the country. Irpex spp. are wood decay fungi. In the period 2019-2022, in the state of Michoacán (19°13' N; 101°55' W), México, basidiomes of Irpex sp. were observed on the base of trunks and crowns of 5-years-old and older avocado (Persea americana) trees. The trees exhibited disease symptoms that included white root rot, leaf yellowing, small leaves, branch diebacks, generalized defoliation, apical flaccidity, abundant but small sun burnt fruits due to the lack of foliage, and after 2-4 years of first disease appearance, the infected trees died. In the place where fungus was established, abundant white and cottony mycelium was formed, which caused trees decay. The incidence of the disease in the sampled orchards was estimated to be 30% per ha with 350 - 400 trees, which was determined through a simple sampling design focused on trees with signs and symptoms of the disease due to the phytopathogen. Samples of infected tissue (roots and stems) and fungal basidiomes were collected from 90 trees (5-6 per orchard). The symptomatic avocado trees studied were randomly selected from 17 orchards. For the fungal macroscopic characterization, the synoptic keys described by Gilbertson and Ryvarden (1986) and by Largent (1973) were used. The samples showed typical structures corresponding to Irpex sp., including rosettes, annual basidiomes, a system of monomitic hyphae, and subglobose basidiospores. In vitro fungal isolation from basidiomes and infected tree tissues was done according to the protocol of Agrios (2004). The fungal strains were maintained on PDA at 28 °C. At 16 days of incubation the colonies were opaque, whitish with fluffy and corky mycelium. Microscopic analysis of the fungus showed typical yellowish spores, with an ellipsoid shape of 3-4 x 4-5.5 µm (50 accounted structures per isolate [N=19]) and basidia of 20-25 x 4.5-5.5 µm (n=20 basidiomes). For molecular characterization, two molecular markers were used, the internal transcribed spacer rDNA-ITS1 5.8 rDNA-ITS2 (ITS; White et al. 1990) and the large ribosomal subunit (LSU; Vilgalys and Hester 1990). The PCR reaction was performed as described by Martínez-González et al. (2017). The consensus sequences were compared with those deposited in the NCBI-GenBank, using the BLASTN 2.2.19 tool (Zhang et al. 2000), the samples showed 99% match with the species, Irpex rosettiformis. GenBank accession numbers of the submitted isolates are summarized in supplementary Table 4. To test Koch's postulates, 3-months old avocado plants grown in greenhouse conditions were inoculated (n = 10 per each isolate [N= 19]) on the roots with 3 g of I. rosettiformis mycelium. The experiment was done twice with 20 non-inoculated plants as control. After 67 days, basidiomes (50 x 70 x 1.5 mm in average) were observed where the disease incidence was >77%, with subsequent tree decline. The pathogen was re-isolated in vitro in PDA and its identity was confirmed by morphological characteristics of mycelium. This work shows that I. rosettiformis is not only a wood decay fungus, but also a phytopathogen, the causative agent of white root rot disease in P. americana var. drymifolia, cultivar 'Hass', which establishes a precedent for monitoring and preventing its proliferation to other regions in the American continent and the world where nursery avocado seedlings are exported.
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Affiliation(s)
| | - Juan Mendoza-Churape
- Universidad Michoacana de San Nicolas de Hidalgo, 27852, Agrobiology, Uruapan, Michoacan, Mexico;
| | - Hexon Angel Contreras-Cornejo
- Universidad Nacional Autonoma de Mexico, 7180, Instituto de investigaciones en ecosistemas y sustentabilidad, Antigua Carrera a Pátzcuaro, exhacienda San José, Morelia, Michoacan, Mexico, 58190;
| | - Yurixhi Atenea Raya-Montaño
- Universidad Michoacana de San Nicolas de Hidalgo, 27852, Agrobiology, justo mendoza, Uruapan, Michoacan, Mexico, 60080;
| | | | | | - Tania Raymundo
- Instituto Politecnico Nacional, 27740, Ciudad de Mexico, Distrito Federal, Mexico;
| | | | | | - Ma Blanca Nieves Lara Chávez
- Universidad Michoacana de San Nicolas de Hidalgo, 27852, Agrobiology, Lazaro Cardenas, No. 2290, Morelia, Mexico, 58030;
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Cosseboom SD, Hu M. Utilizing disease prediction models to time fungicide applications for controlling ripe rot, caused by Colletotrichum spp., in Maryland vineyards. Plant Dis 2023. [PMID: 38105460 DOI: 10.1094/pdis-10-23-2114-re] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Two previously published ripe rot prediction models, DF2-NN and GH2-DT, were evaluated for fungicide application timing efficacy in Maryland vineyards. Both models utilize leaf wetness duration (LWD), temperature, and grape cluster phenological stages as model parameters. These three parameters were tracked throughout the 2021 to 2023 seasons in three vineyards. The fungicide efficacy trials started at the veraison phenological stage and included a non-treated control, a 12-day interval treatment, and two model-triggered treatments, when risk predicted by the models crossed a threshold. The severity of ripe rot on the clusters in each treatment was assessed when the fruit were mature. Ripe rot severity in the non-treated controls was higher during seasons with more LWD and more precipitation. Days in which the models were triggered by the environmental conditions primarily coincided with precipitation events and lengthy LWDs. The model-triggered treatments never had significantly higher ripe rot severity than the 12-day interval treatment but had significantly lower severities than the non-treated control in most trials which had high ripe rot pressure. Furthermore, the model-triggered treatments resulted in fewer fungicide applications than the 12-day interval treatment on average. The DF2-NN model appeared to be more accurate and useful for ripe rot prediction and treatment than the GH2-DT model because it triggered fewer fungicide applications while reducing ripe rot. This model may be useful for improving or maintaining ripe rot control with less fungicide inputs, which may be beneficial for the environment and the reduction of fungicide resistance selection.
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Affiliation(s)
- Scott David Cosseboom
- University of Maryland, Plant Science and Landscape Architecture, 4291 Fieldhouse Drive, Rm 2106, College Park, College Park, Maryland, United States, 20742
- California, United States;
| | - Mengjun Hu
- University of Maryland at College Park, 1068, Department of Plant Science and Landscape Architecture, 4291 Fieldhouse Drive, College Park, Maryland, United States, 20742-5031;
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Gaudio S, Rukh G, Di Ciommo V, Berkins S, Wiemerslage L, Schiöth HB. Higher fresh fruit intake relates to larger grey matter volumes in areas involved in dementia and depression: A UK Biobank study. Neuroimage 2023; 283:120438. [PMID: 37918179 DOI: 10.1016/j.neuroimage.2023.120438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 10/29/2023] [Accepted: 10/30/2023] [Indexed: 11/04/2023] Open
Abstract
The benefits of consuming fruits and vegetables are widely accepted. While previous studies suggest a protective role of fruits and vegetables against a variety of diseases such as dementia and depression, the biological mechanisms/effects remain unclear. Here we investigated the effect of fruit and vegetable consumption on brain structure. Particularly on grey matter (GM) and white matter (WM) volumes, regional GM volumes and subcortical volumes. Cross-sectional imaging data from UK Biobank cohort was used. A total of 9925 participants (Mean age 62.4 ± 7.5 years, 51.1 % men) were included in the present analysis. Measures included fruit and vegetable intake, other dietary patterns and a number of selected lifestyle factors and clinical data. Brain volumes were derived from structural brain magnetic resonance imaging. General linear model was used to study the associations between brain volumes and fruit/vegetable intakes. After adjusting for selected confounding factors, salad/raw vegetable intake showed a positive association with total white matter volume, fresh fruit intake showed a negative association with total grey matter (GM) volume. Regional GM analyses showed that higher fresh fruit intake was associated with larger GM volume in the left hippocampus, right temporal occipital fusiform cortex, left postcentral gyrus, right precentral gyrus, and right juxtapositional lobule cortex. We conclude that fruit and vegetable consumption seems to specifically modulate brain volumes. In particular, fresh fruit intake may have a protective role in specific cortical areas such as the hippocampus, areas robustly involved in the pathophysiology of dementia and depression.
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Affiliation(s)
- Santino Gaudio
- Department of Neuroscience, Functional Pharmacology, Uppsala University, BMC, Box 593, 751 24, Uppsala, Sweden.
| | - Gull Rukh
- Department of Neuroscience, Functional Pharmacology, Uppsala University, BMC, Box 593, 751 24, Uppsala, Sweden
| | - Vincenzo Di Ciommo
- Department of Neuroscience, Functional Pharmacology, Uppsala University, BMC, Box 593, 751 24, Uppsala, Sweden
| | - Samuel Berkins
- Department of Neuroscience, Functional Pharmacology, Uppsala University, BMC, Box 593, 751 24, Uppsala, Sweden
| | - Lyle Wiemerslage
- Department of Neuroscience, Functional Pharmacology, Uppsala University, BMC, Box 593, 751 24, Uppsala, Sweden
| | - Helgi B Schiöth
- Department of Neuroscience, Functional Pharmacology, Uppsala University, BMC, Box 593, 751 24, Uppsala, Sweden; Institute for Translational Medicine and Biotechnology, Sechenov First Moscow State Medical University, Moscow, Russia
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Ahmed KR, Kolbe-Alexander T, Khan A. Efficacy of a school-based education intervention on the consumption of fruits, vegetables and carbonated soft drinks among adolescents. Public Health Nutr 2023; 26:3112-3121. [PMID: 37781771 PMCID: PMC10755403 DOI: 10.1017/s1368980023002094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 07/21/2023] [Accepted: 09/13/2023] [Indexed: 10/03/2023]
Abstract
OBJECTIVES To evaluate the efficacy of a school-based education intervention on the consumption of fruit, vegetables and carbonated soft drinks among adolescents. DESIGN Cluster-randomised controlled trial. SETTING Eight secondary schools from Dhaka, Bangladesh, participated in this trial and were randomly allocated to intervention (n 160) and control groups (n 160). PARTICIPANTS A total of 320 students from 8th to 9th grades participated and completed the self-reported questionnaires at baseline, and at 8 and 12 weeks. The intervention included weekly classroom-based nutrition education sessions for students and healthy eating materials for students and parents. Repeated measures ANCOVA was used to assess the effects of the intervention. RESULTS Daily fresh fruit intake was more frequent in the intervention (26 %) compared to the control group (3 %) at 12 weeks (p = 0·006). Participants from the intervention group also reported a significantly (P < 0·001) higher (49 %) proportion of fresh vegetable intake compared to the control group (2 %) at 12 weeks. Frequency of daily carbonated soft drinks intake decreased (25 %) in the intervention group at 12 weeks compared to baseline, while it remained unchanged in the control group; the interaction effect was observed significant (P = 0·002). CONCLUSION Our school-based education intervention increased the daily frequency of fresh vegetables and fruit intake and decreased carbonated soft drink consumption among adolescents in the intervention group. There is a need for scaling up the intervention to engage students and empower them to develop healthy dietary habits.
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Affiliation(s)
- Kazi R Ahmed
- Department of Health Promotion and Health Education, Bangladesh University of Health Sciences, Darus Salam, Mirpur, Dhaka1216, Bangladesh
- School of Health & Rehabilitation Sciences, The University of Queensland, Brisbane, Australia
| | - Tracy Kolbe-Alexander
- School of Health and Wellbeing, University of Southern Queensland, Toowoomba, Australia
- School of Human Movement and Nutrition Sciences, The University of Queensland, Saint Lucia, Australia
- Division of Exercise Science and Sports Medicine, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Rondebosch, South Africa
| | - Asaduzzaman Khan
- School of Health & Rehabilitation Sciences, The University of Queensland, Brisbane, Australia
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Carvalho MCRD, Lopes MS, Freitas PPD, Lopes ACS. Evolution of fruit and vegetable intake among health promotion service participants in a Brazilian metropolis: 48-month follow-up of a randomized controlled community trial. Prev Med 2023; 177:107748. [PMID: 37913915 DOI: 10.1016/j.ypmed.2023.107748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 10/26/2023] [Accepted: 10/28/2023] [Indexed: 11/03/2023]
Abstract
OBJECTIVE To assess longitudinal effects of a nutrition intervention on fruit and vegetable (F&V) intake among Primary Health Care (PHC) service participants in Belo Horizonte, Brazil. METHODS Demographics and health data on 3414 PHC service participants were collected at baseline in 2013-2014. F&V intake was assessed at baseline, 12, 36, and 48 months until 2017-2018. Services were randomized to control (CG, usual care) or intervention (IG, usual care and a Transtheoretical Model-based intervention to increase F&V intake). We performed difference-in-differences (DiD) analysis to identify intervention effects on F&V intake, and sensitivity analyses of participants observed at all timepoints. RESULTS Participants were mostly middle-aged, low-income women. Mean baseline intakes were 168.7 g of fruit, 202.0 g of vegetables, and 370.7 g of F&V, with lower fruit in the IG (164.1 g) than the CG (172.3 g). At 12 months, the intervention increased fruit intake in the IG and fruit and F&V intake among individuals with low baseline F&V intake. Fruit intake remained higher at 36 months in the IG. No effect on vegetable intake was identified. According to sensitivity analyses, effects on fruit intake among the complete sample did not remain significant at 36 months, and an effect on fruit intake at 36 months was identified among those with adequate baseline F&V intake. Reductions in F&V intake did not remain significant. CONCLUSIONS At 12 months, a TTM-based intervention increased fruit intake in the overall sample, and fruit and F&V intake among individuals with low baseline intakes. Repeated interventions may be needed over time. TRIAL REGISTRATION NUMBER RBR-9h7ckx.
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Affiliation(s)
- Maria Cecília Ramos de Carvalho
- Universidade Federal de Minas Gerais, Grupo de Pesquisa de Intervenções em Nutrição, 190 Alfredo Balena Avenue, Nursing School, Room 102, Santa Efigênia, 30130-100 Belo Horizonte, MG, Brazil.
| | - Mariana Souza Lopes
- Universidade Federal da Paraíba, Centro de Ciências da Saúde, Departamento de Nutrição, Campus I, Cidade Universitária, 58051-900 João Pessoa, PB, Brazil. Universidade Federal de Minas Gerais, Grupo de Pesquisa de Intervenções em Nutrição.
| | - Patrícia Pinheiro de Freitas
- Universidade Federal de Minas Gerais, Grupo de Pesquisa de Intervenções em Nutrição, 190 Alfredo Balena Avenue, Nursing School, Room 102, Santa Efigênia, 30130-100 Belo Horizonte, MG, Brazil.
| | - Aline Cristine Souza Lopes
- Universidade Federal de Minas Gerais, Escola de Enfermagem, Departamento de Nutrição, Grupo de Pesquisa de Intervenções em Nutrição, 190 Alfredo Balena Avenue, Nursing School, Room 316, Santa Efigênia, 30130-100 Belo Horizonte, MG, Brazil.
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Nicolas C, Rouche M, Dierckens M, Kelly C, Fismen AS, Nardone P, Castetbon K, Chatelan A. Sixteen-year trends in fruit consumption and related socioeconomic inequalities among adolescents in Western European countries. Eur J Nutr 2023; 62:3287-3296. [PMID: 37584785 DOI: 10.1007/s00394-023-03199-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 06/23/2023] [Indexed: 08/17/2023]
Abstract
PURPOSE To investigate time trends in daily fruit consumption among Western European adolescents and in related socioeconomic inequalities. METHODS We used nationally representative data from 18 countries participating in five rounds (2002 to 2018) of the cross-sectional "Health Behaviour in School-aged Children" (HBSC) survey (n = 458,973). The questionnaire, standardised across countries and rounds, was self-administered at school by 11-, 13- and 15-year-old adolescents. Daily fruit consumption was assessed using a short food frequency questionnaire (sFFQ). Socioeconomic inequalities were measured using the Family Affluence Scale (FAS). Multilevel logistic regressions were applied to study linear time trends in daily fruit consumption, overall, by country and by FAS. RESULTS Between 2002 and 2018, daily fruit consumption increased in 10 countries (OR range, 1.04 to 1.13, p < 0.05) and decreased in 3 (OR range 0.96 to 0.98, p < 0.05). In all survey years combined, prevalence of daily fruit consumption was significantly higher among high FAS groups (42.6%) compared to medium (36.1%) and low FAS groups (31.7%; all countries: p < 0.001). Between 2002 and 2018, socioeconomic inequalities in fruit consumption increased in Austria, Germany, Italy, Netherlands, Scotland, Sweden, and Switzerland. Only in Norway FAS inequalities decreased while the prevalence increased. CONCLUSION The prevalence of daily fruit consumption generally increased among adolescents between 2002 and 2018 in Western European countries, yet socioeconomic inequalities increased in some countries. Public health interventions should continue to promote fruit consumption with special attention to lower socioeconomic groups.
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Affiliation(s)
- Charlotte Nicolas
- Research Centre in Epidemiology, Biostatistics and Clinical Research, School of Public Health, Université Libre de Bruxelles (ULB), CP 598, Route de 24 Lennik 808, 1070, Brussels, Belgium.
- Research Institute LABIRIS, Brussels, Belgium.
| | - Manon Rouche
- Research Centre in Epidemiology, Biostatistics and Clinical Research, School of Public Health, Université Libre de Bruxelles (ULB), CP 598, Route de 24 Lennik 808, 1070, Brussels, Belgium
| | - Maxim Dierckens
- Department of Public Health and Primary Care, Ghent University, Ghent, Belgium
| | - Colette Kelly
- Health Promotion Research Centre, School of Health Sciences, University of Galway, Galway, Ireland
| | - Anne-Siri Fismen
- Department of Health Promotion, Norwegian Institute of Public Health, Bergen, Norway
- Centre for Evaluation of Public Health Measures, Norwegian Institute of Public Health, Oslo, Norway
| | - Paola Nardone
- National Centre for Disease Prevention and Health Promotion, Italian National Institute of Health (Istituto Superiore Di Sanità), Rome, Italy
| | - Katia Castetbon
- Research Centre in Epidemiology, Biostatistics and Clinical Research, School of Public Health, Université Libre de Bruxelles (ULB), CP 598, Route de 24 Lennik 808, 1070, Brussels, Belgium
| | - Angeline Chatelan
- Research Centre in Epidemiology, Biostatistics and Clinical Research, School of Public Health, Université Libre de Bruxelles (ULB), CP 598, Route de 24 Lennik 808, 1070, Brussels, Belgium
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Prodorutti D, Bugiani R, Philion V, Stensvand A, Coller E, Tosi C, Rizzi C, Angeli G, Pertot I. Irrigation Targeted to Provoke Ejection of Ascospores of Venturia inaequalis Shortens the Season for Ascospore Release and Results in Less Apple Scab. Plant Dis 2023. [PMID: 38035780 DOI: 10.1094/pdis-07-23-1245-re] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
Trials were carried out in apple orchards of Emilia-Romagna and Trentino-Alto Adige in northern Italy to investigate the effects of sprinkler irrigation on possible reduction in inoculum and subsequent disease pressure of Venturia inaequalis, the ascomycete causing apple scab. In spring, volumetric spore traps were placed above apple leaf litter containing pseudothecia with ascospores of the fungus. Pseudothecia matured more rapidly in irrigated plots, and 95% of the total number of spores trapped in a season was reached on average 164 degree days (base temperature 0°C) earlier in irrigated compared to non-irrigated plots. On average for seven location/year combinations, more than 50% of the ascospores were trapped following irrigations carried out for two hours on sunny days before a forecasted rainfall. Subsequently, a much lower number of spores were trapped on rainy days following irrigation. Field trials with scab susceptible apple cultivars were carried out in the two regions to evaluate the efficacy of sprinkler irrigation on disease. Irrigated and non-irrigated plots were either treated with different fungicide control strategies or not treated. Irrigation significantly reduced the incidence of apple scab at both sites, and the overall number of infected leaves and fruit was reduced by more than 50%. Mid-day sprinkler irrigation can significantly reduce the inoculum pressure of V. inaequalis in apple orchards. This may be a sustainable management strategy, especially in areas with extended dry periods.
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Affiliation(s)
- Daniele Prodorutti
- Fondazione Edmund Mach Istituto Agrario di San Michele all'Adige, 17954, San Michele all'Adige, Trentino-Alto Adige, Italy
- University of Trento, 19034, Trento, Trentino-Alto Adige, Italy;
| | | | - Vincent Philion
- Institut de recherche et de developpement en agroenvironnement, 105062, Saint-Bruno-de-Montarville, Quebec, Canada;
| | - Arne Stensvand
- Norwegian Institute of Bioeconomy Research, Department of Fungal Plant Pathology, Aas, Norway;
| | - Emanuela Coller
- Fondazione Edmund Mach Istituto Agrario di San Michele all'Adige, 17954, San Michele all'Adige, Trentino-Alto Adige, Italy;
| | - Clelia Tosi
- Regione Emilia-Romagna, 9365, Bologna, Emilia-Romagna, Italy;
| | - Claudio Rizzi
- Fondazione Edmund Mach Istituto Agrario di San Michele all'Adige, 17954, San Michele all'Adige, Trentino-Alto Adige, Italy;
| | - Gino Angeli
- Fondazione Edmund Mach Istituto Agrario di San Michele all'Adige, 17954, San Michele all'Adige, Trentino-Alto Adige, Italy;
| | - Ilaria Pertot
- University of Trento, 19034, Trento, Trentino-Alto Adige, Italy;
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Zhang G, Kang J, Jing S, Chen Y, Deng T, Xu H, Wu H, Xu F. Meat, vegetable, and fruit consumption among urban and rural elders aged 60+ years in regional China: a population-level nutritional study. J Nutr Sci 2023; 12:e120. [PMID: 38155810 PMCID: PMC10753460 DOI: 10.1017/jns.2023.104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 10/27/2023] [Indexed: 12/30/2023] Open
Abstract
The aim was to assess epidemiological characteristics of the most recent consumption patterns of meat, vegetable, and fruit among representative urban and rural residents aged 60+ years in regional China. In this cross-sectional survey conducted in mid-2018, participants aged 60+ years were randomly chosen from urban and rural communities in Nanjing municipality of China. Meat, vegetable, and fruit intake were assessed with a validated food frequency questionnaire. Multivariate logistic regression models were applied to compute odds ratio (OR) and 95 % confidence interval (CI) to investigate the association of socio-demographic characteristics with a likelihood of meeting intake recommendation. Among the 20 867 participants, 49⋅5 % were men and 45⋅0 % urban elders, and 6⋅5 % aged 80+ years. The mean values of consumption frequency of red meat, white meat, vegetable, and fruit were 2⋅99 ± 2⋅28, 1⋅37 ± 1⋅13, 5⋅24 ± 6⋅43, and 2⋅64 ± 2⋅91 times/week, respectively, among overall participants. Moreover, there were 14⋅9, 23⋅7, and 12⋅1 % of participants meeting intake recommendations of meat, vegetable, and fruit, separately, in this study. After adjustment for potential confounders, age, gender, residence area, and educational attainment each was associated with the likelihood of meeting intake recommendation of meat, vegetable, or fruit. The consumption frequency and proportion of participants meeting intake recommendations of meat, vegetable, or fruit were not high among elders in regional China. Socio-demographic characteristics were associated with intake recommendations of meat, vegetables, and fruit. It has public health implications that participants' socio-demographic attributes shall be considered for precision intervention on meat, vegetable, and fruit consumption in healthy eating campaigns among elders in China.
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Affiliation(s)
- Guilin Zhang
- Geriatric Hospital of Nanjing Medical University, Nanjing, China
| | - Jian Kang
- The First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Shibao Jing
- Nanjing Liuhe District Center for Disease Control and Prevention, Nanjing, China
| | - Yinhao Chen
- Wenzhou Center for Disease Control and Prevention, Wenzhou, China
| | - Tianrui Deng
- Nanjing Medical University School of Public Health, Nanjing, China
| | - Huiqing Xu
- Nanjing Medical University School of Public Health, Nanjing, China
| | - Haidi Wu
- Geriatric Hospital of Nanjing Medical University, Nanjing, China
| | - Fei Xu
- Nanjing Municipal Center for Disease Control and Prevention Affiliated to Nanjing Medical University, Nanjing, China
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Yan H, Mi Y, Li Y, Zang H, Guo L, Huo J, Man Z, Chen Z, Zhang B, Sang M, Li C, Cheng Y. First Report of Postharvest Fruit Rot Caused by Botrytis cinerea on Blue Honeysuckle ( Lonicera caerulea L.) Fruit in China. Plant Dis 2023. [PMID: 37990520 DOI: 10.1094/pdis-08-23-1673-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Blue honeysuckle (Lonicera caerulea L.) fruit is growing in popularity as a natural, functional 'super fruit', but its storage is challenged by pathogen infection. In June 2022, approximately 30% of 100 kg of blue honeysuckle fruits (cv. Lanjingling) obtained in Harbin, China (128.70°E, 44.87°N) showed postharvest fruit rot symptoms after 15 d of storage at 4°C, leading to whole fruit rotting with gray fungal growth (Fig.1 A). Small (1-2 mm) segments of infected tissue were obtained from 20 randomly selected fruits which were surface sterilized with 75% ethanol for 30 s and 5% sodium hypochlorite (NaOCl) for 3 min, rinsed three times with sterile distilled water, dried in paper towel, and plated in 9 cm Petri dishes containing potato dextrose agar (PDA). Five purified cultures were obtained and their front colonies were dark brown (Fig.1 C) on the PDA plates after 5 d at 25°C (Alam et al. 2019; Riquelme-Toledo et al. 2020). The conidia (n = 50) were single-celled, hyaline, either ellipsoid or ovoid, and measured 7.5-15.0 μm (11.7 μm average) × 6.0-11.4 μm (8.3 μm average). The conidiophores (Fig.1 E) were branched at the apex bearing bunches of conidia resembling grape clusters (Ellis 1971). For molecular confirmation, genomic DNA was extracted from a representative isolate LDGS-3 using the Ezup Column Fungi Genomic DNA Purification kit (Sangon Biotech, Shanghai, China). The internal transcribed spacer region (ITS, GenBank ON952502), heat shock protein (HSP60, GenBank OP039103), the second-largest subunit of RNA polymerase II (RPB2, GenBank OP186114) and glyceraldehyde 3-phosphate dehydrogenase (G3PDH, GenBank OQ658508) genes were partially amplified with the respective primers ITS1/ITS4, HSP60f/HSP60r, RPB2f/RPB2r, and G3PDH-F/G3PDH-R (Staats et al. 2005; White et al. 1990). BLAST analysis revealed that the sequences of the four genes showed 100% homology with the MH782039, MH796663, MN448501 and MH796662 sequences for isolates of Botrytis cinerea. Based on morphology and molecular characteristics, the isolate LDGS-3 was identified as B. cinerea. For pathogenicity, twenty healthy blue honeysuckle fruits (cv. Lanjingling) were superficially sterilized with 75% ethanol and washed with distilled water. Ten inoculated blue honeysuckle fruits, which were injected with 10 μL conidial suspension of isolate LDGS-3 (106 spores/mL) displayed fruit rot symptoms (Fig.1 B) inside 9 cm Petri dishes after 10 d at 4°C, while no symptoms were detected on ten fruits inoculated with sterile distilled water (Alam et al. 2019). The same isolate that was reisolated from infected fruits with the same morphological and molecular traits was also identified as B. cinerea, confirming Koch's postulates. B. cinerea was previously reported in Henan Province, China in hawthorn (Zhang et al. 2018). To our knowledge, this is the first report of postharvest fruit rot caused by B. cinerea on blue honeysuckle fruit in China, which will aid future management of this emerging postharvest disease.
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Affiliation(s)
- Haohao Yan
- Northeast Agricultural UniversityHarbin, China, 150030;
| | - Yaozu Mi
- Northeast Agricultural UniversityHarbin, China, 150030;
| | - Yuxuan Li
- Northeast Agricultural UniversityHarbin, China, 150030;
| | - Hailian Zang
- Northeast Agricultural UniversityHarbin, China, 150030;
| | | | | | - Zijian Man
- Northeast Agricultural UniversityHarbin, China, 150030;
| | - Zexu Chen
- Northeast Agricultural UniversityHarbin, China, 150030;
| | - Bing Zhang
- Northeast Agricultural UniversityHarbin, China, 150030;
| | - Mingyu Sang
- Northeast Agricultural UniversityHarbin, China, 150030;
| | - Chunyan Li
- Northeast Agricultural UniversityHarbin, Heilongjiang, China, 150030;
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Zindović J, Čizmović M, Vučurović A, Margaria P, Škorić D. Increased Diversity of Citrus Tristeza Virus in Europe. Plant Dis 2023. [PMID: 37990525 DOI: 10.1094/pdis-09-23-1718-re] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
This study investigated the genetic diversity of citrus tristeza virus (CTV) isolates from Montenegro and Croatia, European countries with the northernmost citrus growing regions situated on the Eastern Adriatic coast. Fifteen complete or nearly complete CTV genomes were reconstructed from high-throughput sequencing of samples collected in distinct municipalities in Montenegro and Opuzen municipality in Croatia. Phylogenetic analyses assigned some of the sequences to VT and T30 strains, previously recorded in Europe, while remarkably other isolates were placed in S1 and RB groups, which have not been reported in Europe so far. In addition, a new phylogenetic lineage including only isolates from Montenegro was delineated and tentatively proposed as the MNE cluster. Recombination analysis revealed evidence of 11 recombination events in the sequences obtained in this study, between isolates of related strains, within isolates of the same strain, and between distant strains. These findings show that CTV diversity in Europe is higher than reported before and calls for the re-evaluation of management strategies.
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Affiliation(s)
- Jelena Zindović
- University of Montenegro Biotechnical Faculty, 223267, Department for Plant Protection, Podgorica, Montenegro;
| | - Miroslav Čizmović
- University of Montenegro, 187153, Biotechnical Faculty, Centre for Subtropical Cultures, Bar, Montenegro;
| | - Ana Vučurović
- National Institute of Biology, 54766, Department of Biotechnology and Systems Biology, Večna pot 111, Ljubljana, Slovenia, 1000;
| | - Paolo Margaria
- Leibniz Institut - DMSZ, Plant Virus Department, Messeweg 11-12, Braunschweig, Germany, 38104;
| | - Dijana Škorić
- University of Zagreb, Faculty of Science, Department of Biology, Marulicev trg 9a, Zagreb, Croatia, HR-10000;
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Elfar K, Carachure C, Bustamante MI, Andrews E, Eskalen A. First report of Diplodia bulgarica causing black canker on apple in California. Plant Dis 2023. [PMID: 37938909 DOI: 10.1094/pdis-10-23-2031-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
California is the sixth largest apple-producing state in the United States with a production that reached 4,654 ha in 2021. During the late winter of 2023, black canker symptoms were observed on branches of 'Gravenstein' apple (Malus domestica) in two commercial orchards in Sonoma County, California. The prevalence of symptomatic trees ranged from 10 to 30%. External symptoms included charcoal looking-cankers with the bark peeling off from the primary and secondary branches. Internally, cankers were dark brown in color with a hard consistency. Pycnidia were observed on the surface of older cankers. Fungal isolations were performed from disinfected (70% ethanol, 30 s) symptomatic branch samples (n = 15). Small wood pieces (5 mm length) were taken from the margin of diseased and healthy tissues, and placed on potato dextrose agar acidified with 92% lactic acid at 0.5 mL per liter (APDA). Plates were incubated at room temperature (20-22 °C) for 7 days. Colonies of Botryosphaeriaceae species (Phillips et al. 2013) (n = 12) were consistently recovered and pure cultures were obtained by transferring a single hyphal tip onto fresh APDA. Colonies were light gray with irregular margins. To induce pycnidia formation, two isolates (UCD11350 and UCD11351) were grown on pistachio leaf agar for 21 days. Conidia (n = 50) were thick-walled and ovoid in shape, initially hyaline, then turned pale brown and dark brown at maturity, and some of them became 1-septate, ranging from 18.9 to 24.0 (21.9) × 11.5 to 14.7 (13.4) µm. Isolates were identified by sequencing a partial region of the beta-tubulin (tub2) gene using the primers Bt2a/Bt2b (Glass and Donaldson 1995). BLAST searches on NCBI GenBank revealed 99.5 % identity with the Diplodia bulgarica ex-type (CBS 1245254). To confirm the identity, the rRNA internal transcribed spacer (ITS) and the translation elongation factor 1-alpha (tef1) were also sequenced using ITS5/ITS4 (White et al. 1990), and EF1-688F/EF1-1251R (Alves et al. 2008), respectively. A maximum parsimony multi-locus phylogenetic analysis clustered Californian isolates with reference strains of D. bulgarica. Sequences were deposited in GenBank (nos. OR631209 to OR631210, OR637361 to OR637362, OR637363 to OR637364 for ITS, tub2, and tef1, respectively). Pathogenicity tests were conducted on 2 to 3-year-old branches (n = 5) of over 20-year-old trees by inserting a 5-mm segment of a toothpick, completely colonized with each of the two isolates mentioned above, into a 1-mm-diameter hole made with a sterile drill bit. The same number of branches where mock inoculated with a non-colonized toothpick as negative control. The experiment was performed twice. After ten weeks, inoculations resulted in dark brown necrotic lesions that ranged from 54.0 to 59.8 mm in length. Negative controls remained asymptomatic. Koch's postulates were fulfilled by successfully recovering the isolates from the lesion margins, which were confirmed by morphology. Diplodia bulgarica was first described affecting M. sylvestris in Bulgaria (Phillips et al. 2012), and then detected on M. domestica causing cankers in Iran (Abdollahzadeh 2015), India (Nabi et al. 2020), Germany (Hinrichs-Berger al. 2021) and Türkiye (Eken 2021). The pathogen was also identified causing postharvest fruit rot (Eken 2022). To our knowledge, this is the first report of D. bulgarica causing branch canker on apple in California, which provides important information for developing detection and control strategies.
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Affiliation(s)
- Karina Elfar
- University of California Davis, 8789, Plant Pathology, One Shields Avenue, Davis, California, United States, 95616-5270;
| | - Carlos Carachure
- University of California Davis, 8789, Plant Pathology, Davis, California, United States;
| | - Marcelo I Bustamante
- UC Davis, 8789, Plant Pathology, 1 Shields Ave., Davis, California, United States, 95616-5270
- Universidad de Chile, 14655, Sanidad Vegetal, Av. Santa Rosa 11315, Santiago de Chile, Metropolitana, Chile, 1025000;
| | - Ellie Andrews
- University of California Cooperative Extension Sonoma, Marin and Napa Counties, Santa Rosa, California, United States;
| | - Akif Eskalen
- University of California, Davis, Plant Pathology, ! Shields Ave, 254 Hutchison Hall, Davis, California, United States, 95616
- University of California, Davis, California, United States;
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Zhang Y, Ma H, Liu S, Hu H, Ren L, Wang Y. First Report of Leaf Spot Disease on Pineapple Caused by Fusarium solani in China. Plant Dis 2023. [PMID: 37931060 DOI: 10.1094/pdis-09-23-1791-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
Pineapple (Ananas comosus) is an economically important tropical fruit in Guangdong Province, China. The plants were seriously infected with a year-round leaf spot disease. During September to November 2022, the leaf spot disease of pineapple was found in Xuwen city and Zhanjiang city of Guangdong Province. A disease survey of 1 ha revealed that pineapple was affected at an incidence ranging from 30% to 50%. The disease caused economic loss to control plant diseases with chemicals. The initial symptoms were observed after 1 month of planting in October and included yellow spot and developed brown necrotic lesions. The leaves of pineapples showed symptoms of Large brown necrotic lesions appear on leaves especially on the tip of basal leaves. The diseased leaves were collected and surface-disinfested in 1% NaClO for 2-3 m, rinsed with sterilized water, air dried, placed on potato dextrose agar (PDA) medium, and incubated for 3 to 5 days at 28°C. Two isolates (PLF1 and PLF2) were collected and purified using the single-spore method. Colonies developing on PDA were in a circle with abundant white, densely fluffy aerial mycelium, pale to colorless after 3 d and pale orange 5-15 d later. Cultures of the isolates produced macroconidia which were falcate, 1-3-septate, hyaline, 18.2-43.4×4.8-6.8 µm(n=50). Cultures of the isolate also produced large amount of conidia which were hyaline, oblong, no septate, 5.2-10.6×2.7-5.2 µm (n=50). These characteristics were consistent with the description of Fusarium sp. (Chitrampalam et al. 2018). For molecular identification, the genomic DNA of the 2 isolates was extracted. The fragments of internal transcribed spacer (ITS), translation elongation factor 1α (EF1α) and β-tubulin were amplified and sequened using the primer pairs of ITS4/ITS5, EF1/EF2 (O'Donnell et al. 2008) and T1/T2 (O'Donnell et al. 1997). These sequences were deposited in GenBank (OR501466, OR501467 for the ITS; OR499874, OR499875 for elongation factor; OR499876, OR499877 for β-tubulin). Phylogenetic trees were constructed in MAGA 11 using the Maximum likelihood (ML) method based on the concatenated sequences of ITS, EF1α, and Tublin (Figure 1). The 2 isolates were grouped with F. solani A01-1 (GCA_027945525.1) with a bootstrap value of 100 in the phylogenetic tree. The morphology and multi-gene phylogenetic analysis indicated that the new isolates are F. solani. The 2 isolates were selected for pathogenicity tests to fulfill Koch's postulates. Six plants at seven- to ten-leaf stage were inoculated with each isolate separately. Three sites of each leaf were wounded with a sterile needle and covered with a piece of cotton drenched with 200 µl spore suspension (107 spores/ml) from each isolate cultured in PD medium. Leaves inoculated with PD medium served as negative controls. Inoculated plants were placed in an incubator at 28°C, and 80% humidity under a 12-h light/dark cycle for 7 days. After 7 days of incubation, necrotic spots were observed in all the inoculated plants except the negative control. The pathogenicity tests were conducted three times with similar results. The strains were then reisolated from the lesions and found to be Fusarium solani as those of the inoculum. F.ananatum, F. guttiforme and F. subglutinans have been reported to infect all parts of pineapplefusariosis disease (Jacobs et al. 2010; Stępień et al. 2013; Ventura et al. 1993). To our knowledge, this is the first report of fusariosis on Pineapple caused by F. solani. Identification of F. solani as a disease agent on pineapple will assist in disease management for this important fruit tree.
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Affiliation(s)
- Yi Zhang
- College of Coastal Agricultural Sciences , Biotechnology, Zhanjiang, Guangdong, China;
| | - Hao Ma
- College of Coastal Agricultural Sciences , Biotechnology, Zhanjiang, Guangdong, China;
| | - Shen Liu
- South Subtropical Crop Research Institute, China Academy of Tropical Agricultural Sciences, Zhanjiang, China;
| | - Han Hu
- College of Coastal Agricultural Sciences , Biotechnology, East Huguangyan Guangdong Ocean University, Zhanjiang, Guangdong, China, 524088;
| | - Lei Ren
- Agricultural college, Biotechnology, Zhanjiang, Guangdong, China;
| | - Yan Wang
- College of Coastal Agricultural Sciences , Biotechnology, Zhanjiang, Guangdong, China;
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Lolas MA, Latorre BA, Ferrada E, Grinbergs D, Chilian J, Ortega-Farias S, Campillay-Llanos W, Díaz GA. Occurrence of Neofusicoccum parvum Causing Canker and Branch Dieback of European Hazelnut in Maule Region, Chile. Plant Dis 2023. [PMID: 37933144 DOI: 10.1094/pdis-08-23-1539-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
The European hazelnut (Corylus avellana) is an important fruit crop cultivated in Chile, with over 17,000 ha planted (46%) in the Maule region, central Chile. During a routine orchard survey in seasons 2020-2021 and 2021-2022, in the Maule region, canker and dieback symptoms were observed in two commercial orchards of European hazelnut cv. Tonda Di Giffoni in San Rafael (8-year-olds) and Linares (15-year-olds), with an incidence between 10% and 36%, respectively, based on external symptoms. Twenty symptomatic branches exhibiting cankers, reduced vigor, wilting, twig death, and dieback, were collected. A cross-section of diseased branches revealed mostly brown V or U-shaped cankers of hard consistency. Branches were cut, and pieces of cankers were surface sterilized in 96% ethanol for 3 s and briefly flamed. Small pieces of wood (5 mm2) from the edge of cankered tissues were placed on Potato Dextrose Agar (2% PDA) amended with 0.1% Igepal CO-630 and incubated at 25°C for five days in the dark (Díaz and Latorre 2014). Pure cultures were obtained by transferring a hyphal tip from growing colonies to fresh PDA media. Eight pure cultures (NP-Haz01 to NP-Haz08) developed dark to olive-brown fast-growing colonies with scarce aerial mycelium after seven days at 25°C on PDA under near-UV light. These isolates showed a dark-olive color on the reverse side of Petri dishes and developed abundant, aggregated, and dark-brown globose pycnidia after 21 days at 25°C. Conidia were hyaline, aseptate, ellipsoidal, densely granulate, externally smooth, and thin-walled dark, that measured (9.5-) 15.5 ±1.2 (-17.3) x (5.1-) 7.2 ± 0.6 (-9.1) µm (n = 30), with a length/width ratio of 2.15. These isolates were tentatively identified morphologically as Neofusicoccum sp. Molecular identification was performed using ITS1/ITS4, Bt2a/Bt2b and EF1-728F/EF1-986R primers of the internal transcribed spacer (ITS1-5.8S-ITS2) region, a portion of the beta-tubulin (BT) and part of the translation elongation factor (EF1-) genes, respectively (Dissanayake et al. 2015). A MegaBlast search in GenBank showed a 99% similarity to isolate CMW9081, the ex-type of Neofusicocum parvum (Pennycook & Samuels) Crous, Slippers & A.J.L. Phillips. The sequences were added to GenBank (OR393855 to OR393857 for ITS; OR400688 to OR400690 for BT; OR400691 to OR400693 for EF1-). Pathogenicity of three isolates (NP-Haz02, NP-Haz04, NP-Haz09) was studied on freshly made pruning wounds on attached branches of 3-year-old and one-year-old of European hazelnut cv. Tonda Di Giffoni in the San Rafael field. Fifteen pruning wounds were inoculated with 40 µL conidial suspension (105 conidia/mL) of each isolate of N. parvum. Sterile distilled water was used as a control treatment (n=15 branches) for branches of 3-year-olds and one-year-olds. Both pathogenicity tests were repeated once. Attached branches of 3-year-olds (6 months of incubation) and one-year-olds (4 months of incubation), developed necrotic streaks and cankers with a mean length of 33 to 82 mm and 25 to 51 mm, respectively. No necrotic streaks were observed in the branches treated with water. Neofusicoccum parvum was reisolated only from symptomatic tissues of inoculated branches, and morphological and molecularly (EF1-) identified, thus fulfilling Koch's postulates. Previously, other Botryosphaeriaceae spp. as Diplodia coryli (Guerrero and Pérez 2012) and D. mutila (Moya-Elizondo et al. 2023) have been obtained from canker and dieback of hazelnut in Chile. Recently, N. parvum was reported causing nut rot in hazelnuts in Italy (Wagas et al. 2022). To our knowledge, this is the first report of N. parvum causing canker and branch dieback of hazelnut trees in Chile and worldwide.
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Affiliation(s)
- Mauricio A Lolas
- Universidad de Talca, Departamento de Producción Agrícola, Facultad de Ciencias Agrarias, Facultad de Ciencias Agrarias, Campus Talca, Avenida Lircay S/N, Talca, Chile, 3460000;
| | - Bernardo Antonio Latorre
- Pontificia Universidad Catolica, Facultad de Agronomia e Ingenieria Forestal, Casilla 306-22, Santiago, Santiago, Chile, 833-1010;
| | - Enrique Ferrada
- Universidad Austral de Chile, 28040, Instituto de Producción y Sanidad Vegetal, Independencia 631, VALDIVIA, REGION DE LOS RIOS, Chile, 5090000;
| | - Daina Grinbergs
- Instituto de Investigaciones Agropecuarias, INIA Quilamapu, Fruit Pathology Lab, Vicente Méndez 515, Chillán, Nuble, Chile, 3780000;
| | - Javier Chilian
- Instituto de Investigaciones Agropecuarias, INIA Quilamapu, Chillán, VIII, Chile;
| | | | | | - Gonzalo A Díaz
- UNIVERSIDAD DE TALCA, DEPARTAMENTO DE PRODUCCION AGRICOLA, AV. LIRCAY S/N, FACULTAD DE CIENCIAS AGRARIAS, TALCA, TALCA, Chile, 3460000;
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Spinelli LV, Anzanello MJ, Areze da Silva Santos R, Carboni Martins C, Freo Saggin J, Aparecida Silva Da Silva M, Rodrigues E. Uncovering the phenolic diversity of Guabiju fruit: LC-MS/MS-based targeted metabolomics approach. Food Res Int 2023; 173:113236. [PMID: 37803550 DOI: 10.1016/j.foodres.2023.113236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 07/03/2023] [Accepted: 07/04/2023] [Indexed: 10/08/2023]
Abstract
The comprehensive composition of phenolic compounds (PC) from seven genotypes of guabiju were analyzed by high-performance liquid chromatography coupled to a diode array detector and mass spectrometry (HPLC-ESI-qTOF-MS/MS), and a targeted metabolomic approach was utilized to explore the PC-related similarities among the genotypes. Sixty-seven phenolic compounds were annotated and twenty-four were quantified in all genotypes of guabiju. The phenolic acids and anthocyanins were the major PC, representing more than 63% (w/w) of the total PC. Di-O-galloylquinic and tri-O-galloylquinic acids and ellagitannins were reported for the first time in guabiju. The results of hierarchical clustering and principal components analysis (PCA) suggested seven groups as suitable clusters to be formed according to phenolic composition. Eleven PC were selected as relevant for sample clustering, and six of them were highlighted as the most informative (in decreasing order of importance): epicatechin, catechin, (epi)gallocatechin gallate II, di-O-galloylquinic acid I, tri-O-galloylquinic acid and delphinidin 3-O-glucoside. To the best of our knowledge, this study contributes to the literature with the most complete phenolic profile of guabiju genotypes up to date. Moreover, guabiju susceptibility to fungal infestation related to PC composition was briefly discussed based on a parallel study using the same genotypes.
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Affiliation(s)
- Liziane V Spinelli
- Food Science and Technology Institute, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Michel J Anzanello
- Department of Industrial Engineering, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Rodrigo Areze da Silva Santos
- Department of Horticulture and Forestry, Agronomy, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Caroline Carboni Martins
- Food Science and Technology Institute, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Justine Freo Saggin
- Food Science and Technology Institute, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | | | - Eliseu Rodrigues
- Food Science and Technology Institute, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil.
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Ezenarro J, García-Pizarro Á, Busto O, de Juan A, Boqué R. Analysing olive ripening with digital image RGB histograms. Anal Chim Acta 2023; 1280:341884. [PMID: 37858563 DOI: 10.1016/j.aca.2023.341884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 10/02/2023] [Accepted: 10/07/2023] [Indexed: 10/21/2023]
Abstract
Digital images are commonly used to monitor processes that are based on colour changes due to their simplicity and easy capture. Colour information in these images can be analysed objectively and accurately using colour histograms. One such process is olive ripening, which is characterized by changes in chemical composition, sensory properties and can be followed by changes in physical appearance, mainly colour. The reference method to quantify the ripeness of olives is the Maturity Index (MI), which is determined by trained experts assigning individual olives into a colour scale through visual inspection. Instead, this study proposes a methodology based on Chemometrics Assisted Colour Histogram-based Analytical Systems (CACHAS) to automatically assess the MI of olives based on R, G, and B colour histograms derived from digital images. The methodology was shown to be easily transferable for routine analysis and capable of controlling the ripening of olives. The study also confirms the high potential of digital images to understand the ripening process of olives (and potentially other fruits) and to predict the MI with satisfactory accuracy, providing an objective and reproducible alternative to visual inspection of trained experts.
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Affiliation(s)
- Jokin Ezenarro
- Universitat Rovira i Virgili. Chemometrics and Sensorics for Analytical Solutions (CHEMOSENS) group, Department of Analytical Chemistry and Organic Chemistry, Campus Sescelades, Edifici N4, C/Marcel⋅lí Domingo 1, Tarragona, 43007, Spain
| | - Ángel García-Pizarro
- Universitat Rovira i Virgili. Chemometrics and Sensorics for Analytical Solutions (CHEMOSENS) group, Department of Analytical Chemistry and Organic Chemistry, Campus Sescelades, Edifici N4, C/Marcel⋅lí Domingo 1, Tarragona, 43007, Spain; Fruit Production Program, IRTA Mas Bové, Ctra. Reus-El Morell Km 3.8, Constantí, 43120, Spain
| | - Olga Busto
- Universitat Rovira i Virgili. Chemometrics and Sensorics for Analytical Solutions (CHEMOSENS) group, Department of Analytical Chemistry and Organic Chemistry, Campus Sescelades, Edifici N4, C/Marcel⋅lí Domingo 1, Tarragona, 43007, Spain
| | - Anna de Juan
- Universitat de Barcelona. Chemometrics Group, Dept. of Chemical Engineering and Analytical Chemistry, Martí i Franqués 1, 08028, Barcelona, Spain
| | - Ricard Boqué
- Universitat Rovira i Virgili. Chemometrics and Sensorics for Analytical Solutions (CHEMOSENS) group, Department of Analytical Chemistry and Organic Chemistry, Campus Sescelades, Edifici N4, C/Marcel⋅lí Domingo 1, Tarragona, 43007, Spain.
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Essaidi I, Chouaibi M, Haj Koubaier H, Bouacida S, Snoussi A, Abassi Y, Bouzouita N. Arbutus unedo fruit syrup as a fortifying agent: effect on physicochemical, microbiological, rheological, sensory and antioxidant properties of yoghurt. J Food Sci Technol 2023; 60:2835-2845. [PMID: 37711580 PMCID: PMC10497488 DOI: 10.1007/s13197-023-05801-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 06/19/2023] [Accepted: 07/11/2023] [Indexed: 09/16/2023]
Abstract
This study aims to assess the antioxidant and the antibacterial activities of Arbutus unedo fruits and to valorize its syrup by the incorporation in bi-layer yoghurt. The antioxidant activity of the ethanol 80% fruits and syrup extracts was evaluated by three methods namely DPPH·, ABTS·+ and FRAP. The antibacterial activity was tested against seven pathogenic bacteria using agar well diffusion method. The yoghurt was prepared using 10 and 20% layers of A. unedo syrup, physicochemical, rheological, microbiological and sensorial characteristics and the antioxidant activity were investigated during cold storage. The results revealed that the heat treatment decreased the phenolic compounds contents and the antioxidant activity in the syrup extract. Both fruits and syrup extracts demonstrated an antibacterial activity against the tested bacteria. The highest inhibition diameter (40 mm) was recorded for Aeromonas hydrophila at 100 mg/mL of fruit echtanolic extract. The prepared bi-layer yoghurts showed stability for the physicochemical and microbiological properties during storage. The rheological properties revealed that the A. unedo syrup increases the yoghurt consistency (k). The antioxidant activity of the yoghurt indicated that fermentation improved the radical scavenging power of the A. unedo syrup at the beginning and the activity decreased slowly during storage. Supplementary Information The online version contains supplementary material available at 10.1007/s13197-023-05801-4.
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Affiliation(s)
- Ismahen Essaidi
- Research Laboratory Agrobiodiversity and Ecotoxicology, High Agronomic Institute of Chott Meriam, University of Sousse, B.P 47, 4042 Chott Meriam, Tunisia
| | - Moncef Chouaibi
- Food Engineering and Basic Science Department, Higher School of Food Industries, University of Carthage, 58, Alain Savary Street, 1003 Elkhadhra City, Tunisia
| | - Hayet Haj Koubaier
- Food Technology Department, Higher School of Food Industries, University of Carthage, 58, Alain Savary Street, 1003 Elkhadhra City, Tunisia
| | - Saoussen Bouacida
- Food Technology Department, Higher School of Food Industries, University of Carthage, 58, Alain Savary Street, 1003 Elkhadhra City, Tunisia
| | - Ahmed Snoussi
- Food Technology Department, Higher School of Food Industries, University of Carthage, 58, Alain Savary Street, 1003 Elkhadhra City, Tunisia
| | - Yosra Abassi
- Food Technology Department, Higher School of Food Industries, University of Carthage, 58, Alain Savary Street, 1003 Elkhadhra City, Tunisia
| | - Nabiha Bouzouita
- Food Technology Department, Higher School of Food Industries, University of Carthage, 58, Alain Savary Street, 1003 Elkhadhra City, Tunisia
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Godse R, Bawane H, Rajkhowa R, Tripathi J, Kulkarni R. Comprehensive in situ and ex situ β-glucosidase-assisted assessment reveals Indian mangoes as reservoirs of glycosidic aroma precursors. Food Res Int 2023; 173:113355. [PMID: 37803658 DOI: 10.1016/j.foodres.2023.113355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 08/02/2023] [Accepted: 08/03/2023] [Indexed: 10/08/2023]
Abstract
Mango, a valued commercial fruit in India is popular mostly because of its attractive flavour. Glycosidically bound volatiles (GBV), an underrepresented warehouse of aroma, remain completely unexplored in Indian mangoes. In this study, GBV were profiled in pulps and peels of 10 Indian mango cultivars, leading to detection of 66 GBV which were dominated by monoterpenoids and phenolics. Peels were quantitatively and qualitatively richer in GBV than pulps. Hierarchical clustering and principal component analysis indicated higher contribution of peel GBV to the distinctness of cultivars. Linalool, geraniol, and eugenol were the significant contributors based on the odour units. Direct β-glucosidase treatment to the juice resulted in the release of lesser number of volatiles than those released from the purified GBV extracts. Apart from providing a comprehensive catalogue of GBV in mangoes, our data suggests the need of critical assessment of the usefulness of β-glucosidases in aroma improvement of fruit juices.
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Affiliation(s)
- Ravish Godse
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Pune 412115, India.
| | - Hemangi Bawane
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Pune 412115, India.
| | - Riyakshi Rajkhowa
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Pune 412115, India.
| | - Jyoti Tripathi
- Food Technology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
| | - Ram Kulkarni
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Pune 412115, India.
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Inokuti EM, Saraiva JLR, Silva DEMD, Corrêa MCDM, Lima CS. First report of stem gray blight on Hylocereus megalanthus and Hylocereus polyrhizus caused by Diaporthe arecae in Brazil. Plant Dis 2023. [PMID: 37884480 DOI: 10.1094/pdis-09-23-1985-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
In November 2021, stem gray blight symptoms were seen on two dragon fruit (pitaya) species (Hylocereus megalanthus and H. polyrhizus) in an orchard with 100% disease incidence in Fortaleza, Ceará, Brazil (3°44'24.5"S 38°34'30.8"W). The symptoms were initially yellowish to dark brown lesions, and as the symptoms progressed, the lesions turned grayish with small black pycnidia in the center. Isolation was carried out by disinfecting small pieces of the symptomatic stems in 70% ethanol for 1 min, followed by 1% NaOCl for 1 min, and then rinsed three times with sterile distilled water. Excess water was removed using sterile filter paper. Then the stem fragments were placed on PDA media. Colonies produced small black pycnidia with conidia and some were sterile after 68 days of incubation. Two monosporic isolates were obtained from the colonies: UFCM 0708 from H. megalanthus and the UFCM 0710 from H. polyrhizus, which were used for pathogenicity test, morphological and molecular identification. The colony on PDA was smoke gray with aerial mycelium and the reverse was smoke grey to dark grey. The α-conidia from UFCM 0708 and UFCM 0710 were hyaline, aseptate and fusiform and measured 6.4 to 9.7 (8.0) x 1.2 to 2.4 (1.7) µm and 6 to 13.1 (8.2) x 1.7 to 2.4 (2.0) µm, respectively. The β-conidia from UFCM 0708 and UFCM 0710 were hyaline, aseptate and filiform and measured 15 to 22.5 (18.8) x 0.6 to 1.7 (1.0) µm, and 17.2 to 27.5 (22.3) x 0.5 to 1.0 (0.8) µm (n=30), respectively. This morphology placed the isolates as Diaporthe sp. (Udayanga et al. 2012). For further confirmation, genomic DNA was extracted from the isolates (UFCM 0708 and UFCM 0710), and beta-tubulin (TUB2) and translation elongation factor 1-alpha (TEF1) gene fragments were amplified. BLASTn search results with isolates TEF1 and TUB2 sequences varied from 98.58% to 99.52% identity to the ex-type sequence of Diaporthe arecae (CBS 161.64). Phylogenetic analysis of concatenated sequences alignment carried out using the Maxinum-likelihood and Bayesian Inference analysis placed the isolates within D. arecae clade with 86% bootstrap and 0.99 posterior probabilities support. The sequences obtained in this study were deposited in GenBank (TEF1: OP534720 and OP534722; TUB2: OP534717 and OP534719). The isolates were confirmed as D. arecae based on molecular analysis and morphological characteristics (Gomes et al. 2013). Koch's postulates were completed as described by Karim et al. (2019) through the inoculation of six stems of each dragon fruit (pitaya) species. The stems were wounded by removing a 5 mm diameter disc and after that they were inoculated with a 5 mm diameter mycelial plug from 5 days old PDA plates. PDA plugs were used as control. Each stem was covered with a plastic bag and sterilized water was added into the sterilized filter paper to maintain humidity. The bags were kept in a room at day and night temperature of 25 ± 2 °C. The same symptoms seen in the field appeared on the stems 21 days after inoculation. The control stems remained symptomless. Diaporthe arecae have been reported on H. polyrhizus in Malaysia (Huda-Shakirah et al. 2021). To our knowledge, this is the first report of D. arecae on H. megalanthus and H. polyrhizus in Brazil.
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Affiliation(s)
- Eliane Mayumi Inokuti
- Universidade Federal do Ceará, 28121, Fitotecnia - Setor de Fitossanidade, Av. Mister Hull, 2977 Bloco 806 - Campus do Pici, Fortaleza, CE, Brazil, 60.356-001;
| | | | - Diene Elen Miranda da Silva
- Universidade Federal do Ceara, 28121, Fitotecnia, Av. Mister Hull, s/n, Campus do Pici, Fortaleza, CE, Brazil, 60455-760;
| | | | - Cristiano Souza Lima
- Universidade Federal do Ceara, 28121, Departamento de Fitotecnia, Rua Campus do Pici s/n Bloco 805, Fortaleza, CE, Brazil, 60440-554;
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