1
|
Wszelaczyńska E, Pobereżny J, Gościnna K, Szczepanek M, Tomaszewska-Sowa M, Lemańczyk G, Lisiecki K, Trawczyński C, Boguszewska-Mańkowska D, Pietraszko M. Determination of the effect of abiotic stress on the oxidative potential of edible potato tubers. Sci Rep 2023; 13:9999. [PMID: 37339999 DOI: 10.1038/s41598-023-35576-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Accepted: 05/20/2023] [Indexed: 06/22/2023] Open
Abstract
Stress factors occurring during the growing season and potato storage, can negatively affect the quality of tubers, including an increased tendency to enzymatic darkening. Abiotic stress due to water shortage is a major factor limiting agricultural production. The purpose of the study was to determine the effect of cultivation technology based on the use of biostimulant, hydrogel and irrigation as well as storage on the propensity to darkening and the content of sugars and organic acids. The results show that genotypic and technological variability in interaction with growing season conditions had a significant (p < 0.05) effect on the oxidative potential (OP) of potato tubers. The Denar cultivar, compared to the 'Gardena', was characterized by a lower tendency to enzymatic darkening. Application of biostimulant and hydrogel generally contributed to lowering the oxidative potential of the tested cultivars. The application of anti-stress agents had no effect on organic acid content. The long-term storage caused an increase in the content of total sugars (TS) (22%), reducing sugars (RS) (49%), chlorogenic acid (ACH) (11%), and loss of ascorbic acid (AA) (6%) in the tubers which contributed to an increase in the oxidative potential of potato tubers (16%). The correlation coefficients obtained (p < 0.05) confirm the dependence of OP on the concentration of organic acids.
Collapse
Affiliation(s)
- Elżbieta Wszelaczyńska
- Institute of Agri-Foodstuff Commodity, Bydgoszcz University of Science and Technology, 7 Kaliskiego St., 85-796, Bydgoszcz, Poland.
| | - Jarosław Pobereżny
- Institute of Agri-Foodstuff Commodity, Bydgoszcz University of Science and Technology, 7 Kaliskiego St., 85-796, Bydgoszcz, Poland.
| | - Katarzyna Gościnna
- Institute of Agri-Foodstuff Commodity, Bydgoszcz University of Science and Technology, 7 Kaliskiego St., 85-796, Bydgoszcz, Poland
| | - Małgorzata Szczepanek
- Department of Agronomy, Bydgoszcz University of Science and Technology, 7 Kaliskiego St., 85-796, Bydgoszcz, Poland
| | - Magdalena Tomaszewska-Sowa
- Department of Agricultural Biotechnology, Bydgoszcz University of Science and Technology, 6 Bernardyńska St., 85-029, Bydgoszcz, Poland
| | - Grzegorz Lemańczyk
- Department of Biology and Plant Protection, Bydgoszcz University of Science and Technology, 7 Kaliskiego St., 85-796, Bydgoszcz, Poland
| | - Karol Lisiecki
- Department of Biology and Plant Protection, Bydgoszcz University of Science and Technology, 7 Kaliskiego St., 85-796, Bydgoszcz, Poland
| | - Cezary Trawczyński
- Potato Agronomy Department, Plant Breeding and Acclimatization Institute, National Research Institute, 05-140, Jadwisin, Poland
| | - Dominika Boguszewska-Mańkowska
- Potato Agronomy Department, Plant Breeding and Acclimatization Institute, National Research Institute, 05-140, Jadwisin, Poland
| | - Milena Pietraszko
- Potato Agronomy Department, Plant Breeding and Acclimatization Institute, National Research Institute, 05-140, Jadwisin, Poland
| |
Collapse
|
2
|
Zhu Y, Elliot M, Zheng Y, Chen J, Chen D, Deng S. Aggregation and conformational change of mushroom (Agaricus bisporus) polyphenol oxidase subjected to atmospheric cold plasma treatment. Food Chem 2022; 386:132707. [PMID: 35339091 DOI: 10.1016/j.foodchem.2022.132707] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 03/10/2022] [Accepted: 03/12/2022] [Indexed: 11/25/2022]
Abstract
Atmospheric cold plasma (ACP) is a novel nonthermal technology with potential applications in maintaining and improving food quality. The effect of ACP on the activity and structure of mushroom (Agaricus bisporus) polyphenol oxidase (PPO) was evaluated. Results demonstrated that the dielectric barrier discharge (DBD) based plasma technology could inactivate PPO (up to 69%) at 50 kV with the increased concentrations of H2O2 and NOx. An obvious enhancement of surface hydrophobicity was observed, whereas a gradual reduction of total sulfhydryl content was recorded with the increasing exposure time. Data from circular dichroism, atomic force microscopy, particle size distribution and fluorescence spectra displayed the rearrangement of secondary structure and disruption of the tertiary structure. Red shifts of fluorescence spectra showed positive correlations with the inactivation rate of PPO. Therefore, ACP treatment could be served as an alternative approach to inactivate undesirable enzymes to minimize the loss of food nutrition and quality.
Collapse
Affiliation(s)
- Yifan Zhu
- College of Food and Medicine, Zhejiang Ocean University, Zhoushan 316022, China
| | - Mubango Elliot
- College of Food Science and Nutrition Engineering, China Agricultural University, Beijing 100083, China
| | - Yanhong Zheng
- College of Food and Medicine, Zhejiang Ocean University, Zhoushan 316022, China
| | - Jing Chen
- College of Food and Medicine, Zhejiang Ocean University, Zhoushan 316022, China; Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, Zhoushan 316022, China.
| | - Dongzhi Chen
- School of Petrochemical Engineering & Environment, Zhejiang Ocean University, Zhoushan 316022, China
| | - Shanggui Deng
- College of Food and Medicine, Zhejiang Ocean University, Zhoushan 316022, China; Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, Zhoushan 316022, China
| |
Collapse
|
3
|
Kumar GNM, Kannangara CG, Knowles NR. Nucleases are upregulated in potato tubers afflicted with zebra chip disease. PLANTA 2022; 255:54. [PMID: 35103848 DOI: 10.1007/s00425-022-03832-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 01/18/2022] [Indexed: 06/14/2023]
Abstract
The defense response of potato tubers afflicted with zebra chip disease involves oxidatively mediated upregulation of nucleases that likely modulate localized programmed cell death to restrict the phloem-mobile, CLso bacterial pathogen to the vasculature. Zebra chip (ZC) is a bacterial disease of potato (Solanum tuberosum L.) caused by Candidatus Liberibacter solanacearum (CLso). Tubers from infected plants develop characteristic brown discoloration of the vasculature, a result of localized programmed cell death (PCD). We examined the potential contribution of nucleases in the response of tubers to CLso infection. Specific activities of the major isozymes of dsDNase, ssDNase, and RNase were substantially upregulated in tubers from CLso-infected plants, despite their significantly lower soluble protein content. However, ZC disease had no effect on nuclease isozyme profiles. Activities of the predominant nuclease isoforms from healthy and CLso-infected tubers had similar pH optima, thermotolerance, and responses to metallic co-factors. Nuclease activities were heat stable to 60 °C and resistant to precipitation with 70% (v/v) isopropanol, which constitute effective techniques for partial purification. DNase and RNase isozyme activities were highest at pH 7.2-8.5 and 6.8-7.2, respectively, and profiles were similar for tubers from CLso-infected and non-infected plants. RNase activities were mostly insensitive to inhibition by EDTA, except at pH 8.5 and above. DNase activities were inhibited by EDTA but less sensitive to inhibition at high pH than the RNases. The EDTA-mediated inhibition of DNase (ds/ss) activities was restored with ZnSO4, but not Ca+2 or Mg+2. By contrast, ZnSO4 inhibited the activities of RNases. DTT and CuSO4 inhibited the activities of all three nucleases. These results suggest that activation of tuber nucleases is dependent on the oxidation of sulfhydryl groups to disulfide and/or oxidation of Zn to Zn+2. In light of previous published results that established extensive CLso-induced upregulation of oxidative stress metabolism in tubers, we propose a model to show how increased nuclease activity could result from a glutathione-mediated oxidation of nuclease sulfhydryl groups in diseased tubers. DNases and RNases are likely an integral part of the hypersensitive response and may modulate PCD to isolate the pathogen to the vascular tissues of tubers.
Collapse
Affiliation(s)
- G N Mohan Kumar
- Department of Horticulture, Washington State University, Pullman, WA, 99163, USA.
| | - C G Kannangara
- Department of Crop and Soils, Washington State University, Pullman, WA, 99163, USA
- , 335/4A, 2nd Cross Street, Kotte Road, Nugegoda, Sri Lanka
| | - N Richard Knowles
- Department of Horticulture, Washington State University, Pullman, WA, 99163, USA
| |
Collapse
|
4
|
Cisneros JS, Cotabarren J, Parisi MG, Vasconcelos MW, Obregón WD. Purification and characterization of a novel trypsin inhibitor from Solanum tuberosum subsp. andigenum var. overa: Study of the expression levels and preliminary evaluation of its antimicrobial activity. Int J Biol Macromol 2020; 158:S0141-8130(20)33083-X. [PMID: 32360201 DOI: 10.1016/j.ijbiomac.2020.04.217] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 04/22/2020] [Accepted: 04/24/2020] [Indexed: 11/23/2022]
Abstract
Protease inhibitors (PIs) have been traditionally recognized by their potential biomedical application in events with exacerbation of endogenous proteases activity. Plant PIs have gained interest as naturally occurring molecules, which usually show lower environmental impact residual toxicity than synthetic compounds. In this work, we isolated, cloned, expressed and purified a novel trypsin inhibitor from S. tuberosum subsp. andigenum var. overa, named oPTI. A significant over-expression of the oPTI coding gene after 48 h exposure of methyl jasmonate compared to the gene of reference. This inhibitor showed a molecular mass of 12 kDa and a Ki of 7.3 × 10-7 M. Finally, we evaluated the antimicrobial activity of oPTI against different pathogenic microorganisms. The oPTI demonstrated inhibitory effect on the growth of Acinetobacter baumannii S-1, Acinetobacter baumannii R, Acinetobacter calcoaceticus R, Acinetobacter calcoaceticus S, Bacillus stearothermophilus, Escherichia coli, Pseudomonas aeruginosa, Salmonella braenderup, Salmonella enteritidis, Salmonella typhimurium and Yersinia enterocolitica strains. This study represents the first report for the antimicrobial activity of a plant PI over a wide range of microorganisms. Our studies reinforce the importance of natural PIs as promising molecules for their potential application in the biomedical field and/or in the food industry as natural food preservatives.
Collapse
Affiliation(s)
- José Sebastián Cisneros
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Universidad Nacional de La Plata-CONICET, Diagonal 113 y 64 S/N, B1900AVW La Plata, Buenos Aires, Argentina
| | - Juliana Cotabarren
- Centro de Investigación de Proteínas Vegetales (CIProVe), Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de la Plata, 47 y 115s/N, B1900AVW La Plata, Buenos Aires, Argentina.
| | - Mónica Graciela Parisi
- Departamento de Ciencias Básicas, Universidad Nacional de Luján, Ruta 5 y Avenida Constitución, Luján, 6700 Buenos Aires, Argentina
| | - Marta Wilton Vasconcelos
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina-Labóratorio Associado, Escola Superior de Biotecnologia, Rua Diorgo Botelho 1357, 4169-005 Porto, Portugal
| | - Walter David Obregón
- Centro de Investigación de Proteínas Vegetales (CIProVe), Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de la Plata, 47 y 115s/N, B1900AVW La Plata, Buenos Aires, Argentina.
| |
Collapse
|
5
|
Dong T, Cao Y, Jiang CZ, Li G, Liu P, Liu S, Wang Q. Cysteine Protease Inhibitors Reduce Enzymatic Browning of Potato by Lowering the Accumulation of Free Amino Acids. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:2467-2476. [PMID: 32031791 DOI: 10.1021/acs.jafc.9b07541] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Enzymatic browning is a major issue affecting the quality of processed potato (Solanum tuberosum L.). To understand the molecular mechanism of browning, transcriptional analyses were performed by employing potatoes that differed in browning. Coexpression analysis indicated that 9 out of 15 upregulated genes in browning-less groups encoded for potato protease inhibitors (StPIs). In addition, gene otology analysis showed that the enriched terms were mainly involved in protease inhibitors. Overexpression of cysteine StPI 143 and StPI 146 individually reduced browning and lowered protease activities and tyrosine and total free amino acid (FAA) contents, but they could not decrease polyphenol oxidase activity. Moreover, supplementing exogenous tyrosine or total FAAs into transgenic potato mash to wild-type amounts promoted mash browning, browning with total FAAs, more than with tyrosine, resembling wild-type levels. These results implied that cysteine StPIs reduced browning via lowering the accumulation of FAAs in addition to tyrosine. Our findings have enriched the knowledge about the roles and mechanisms of protease inhibitors in regulating enzymatic browning of potato, which provide new ways for controlling potato browning.
Collapse
Affiliation(s)
- Tiantian Dong
- College of Food Science and Engineering , Shandong Agricultural University , No. 61 Daizong Road , Taian , Shandong 271018 , People's Republic of China
| | - Yu Cao
- College of Food Science and Engineering , Shandong Agricultural University , No. 61 Daizong Road , Taian , Shandong 271018 , People's Republic of China
| | - Cai-Zhong Jiang
- Department of Plant Sciences , University of California Davis , One Shields Avenue , Davis , California 95616 , United States
- Crops Pathology & Genetic Research , USDA-ARS , One Shields Avenue , Davis , California 95616 , United States
| | - Guangcun Li
- Institute of Vegetable and Flower Research, Key Laboratory of Vegetable Molecular Biology , Shandong Academy of Agricultural Sciences , Jinan , Shandong 250103 , People's Republic of China
- Institute of Vegetable and Flower Research , Chinese Academy of Agricultural Sciences , No. 12 Zhongguancun South Street , Haidian District, Beijing 100081 , People's Republic of China
| | - Pei Liu
- College of Food Science and Engineering , Shandong Agricultural University , No. 61 Daizong Road , Taian , Shandong 271018 , People's Republic of China
| | - Shiyang Liu
- College of Food Science and Engineering , Shandong Agricultural University , No. 61 Daizong Road , Taian , Shandong 271018 , People's Republic of China
- Institute of Vegetable and Flower Research, Key Laboratory of Vegetable Molecular Biology , Shandong Academy of Agricultural Sciences , Jinan , Shandong 250103 , People's Republic of China
| | - Qingguo Wang
- College of Food Science and Engineering , Shandong Agricultural University , No. 61 Daizong Road , Taian , Shandong 271018 , People's Republic of China
| |
Collapse
|
6
|
Antifungal and antimicrobial proteins and peptides of potato (Solanum tuberosum L.) tubers and their applications. Appl Microbiol Biotechnol 2019; 103:5533-5547. [PMID: 31144014 DOI: 10.1007/s00253-019-09887-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 04/30/2019] [Accepted: 05/01/2019] [Indexed: 01/13/2023]
Abstract
Potato proteins are well known for their nutritional, emulsifying, foaming, gel forming or antioxidant properties that all make from them valuable protein source for food industry. Antifungal, antimicrobial and also antiviral properties, described for potato proteins in the review, enrich the possibilities of potato protein usage. Potato proteins were divided into patatin, protease inhibitors and fraction of other proteins that also included, besides others, proteins involved in potato defence physiology. All these proteins groups provide proteins and peptides with antifungal and/or antimicrobial actions. Patatins, obtained from cultivars with resistance to Phytophthora infestans, were able to inhibit spore germination of this pathogen. Protease inhibitors represent the structurally heterogeneous group with broad range of antifungal and antimicrobial activities. Potato protease inhibitors I and II reduced the growth of Phytophthora infestans, Rhizoctonia solani and Botrytis cinerea or of the fungi of Fusarium genus. Members of Kunitz family (proteins Potide-G, AFP-J, Potamin-1 or PG-2) were able to inhibit serious pathogens such as Staphylococcus aureus, Listeria monocytogenes, Escherichia coli or Candida albicans. Potato snakins, defensins and pseudothionins are discussed for their ability to inhibit serious potato fungi as well as bacterial pathogens. Potato proteins with the ability to inhibit growth of pathogens were used for developing of pathogen-resistant transgenic plants for crop improvement. Incorporation of potato antifungal and antimicrobial proteins in feed and food products or food packages for elimination of hygienically risk pathogens brings new possibility of potato protein usage.
Collapse
|
7
|
Herman DJ, Knowles LO, Knowles NR. Heat stress affects carbohydrate metabolism during cold-induced sweetening of potato (Solanum tuberosum L.). PLANTA 2017; 245:563-582. [PMID: 27904974 DOI: 10.1007/s00425-016-2626-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 11/23/2016] [Indexed: 05/14/2023]
Abstract
Tolerance to heat stress for retention of low-temperature sweetening-resistant phenotype in potato is conferred by insensitivity of acid invertase activity to cold induction. Heat stress exacerbated cold sweetening (buildup of reducing sugars) of the LTS (low-temperature sweetening)-susceptible potato (Solanum tuberosum L.) cultivars, Ranger Russet and Russet Burbank, and completely abolished the resistance to cold sweetening in the LTS-resistant cultivars/clones, Sage Russet, GemStar Russet, POR06V12-3 and A02138-2. Payette Russet and EGA09702-2, however, demonstrated considerable tolerance to heat stress for retention of their LTS-resistant phenotype. Heat-primed Payette Russet and EGA09702-2 tubers accumulated fourfold more sucrose when subsequently stored at 4 °C, while reducing sugar concentrations also increased marginally but remained low relative to the non-heat-tolerant LTS-resistant clones, resulting in light-colored fries. By contrast, sucrose concentrations in heat-primed tubers of the non-heat-tolerant clones remained unchanged during LTS, but reducing sugars increased fivefold, resulting in darkening of processed fries. Acid invertase activity increased in the LTS-susceptible and non-heat-tolerant LTS-resistant cultivars/clones during cold storage. However, Payette Russet tubers maintained very low invertase activity regardless of heat stress and cold storage treatments, as was the case for Innate® Russet Burbank (W8) tubers, where silenced invertase conferred robust tolerance to heat stress for retention of LTS-resistant phenotype. Importantly, heat-stressed tubers of Payette Russet, EGA09702-2 and Innate® Russet Burbank (W8) demonstrated similar low reducing sugar and high sucrose-accumulating phenotypes when stored at 4 °C. Tolerance to heat stress for retention of LTS-resistant phenotype in Payette Russet and likely its maternal parent, EGA09702-2, is, therefore, conferred by the ability to maintain low invertase activity during cold storage of heat-stressed tubers.
Collapse
Affiliation(s)
- Derek J Herman
- Postharvest Physiology and Biochemistry Laboratory, Department of Horticulture, Washington State University, P.O. Box 646414, Pullman, WA, 99164-6414, USA
| | - Lisa O Knowles
- Postharvest Physiology and Biochemistry Laboratory, Department of Horticulture, Washington State University, P.O. Box 646414, Pullman, WA, 99164-6414, USA
| | - N Richard Knowles
- Postharvest Physiology and Biochemistry Laboratory, Department of Horticulture, Washington State University, P.O. Box 646414, Pullman, WA, 99164-6414, USA.
| |
Collapse
|