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Wang N, Shu X, Zhang F, Zhuang W, Wang T, Wang Z. Comparative Transcriptome Analysis Identifies Key Regulatory Genes Involved in Anthocyanin Metabolism During Flower Development in Lycoris radiata. FRONTIERS IN PLANT SCIENCE 2021; 12:761862. [PMID: 34975946 PMCID: PMC8715008 DOI: 10.3389/fpls.2021.761862] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 11/17/2021] [Indexed: 06/14/2023]
Abstract
Lycoris is used as a garden flower due to the colorful and its special flowers. Floral coloration of Lycoris is a vital trait that is mainly regulated via the anthocyanin biosynthetic pathway. In this study, we performed a comparative transcriptome analysis of Lycoris radiata petals at four different flower development stages. A total of 38,798 differentially expressed genes (DEGs) were identified by RNA sequencing, and the correlation between the expression level of the DEGs and the anthocyanin content was explored. The identified DEGs are significantly categorized into 'flavonoid biosynthesis,' 'phenylpropanoid biosynthesis,' 'Tropane, piperidine and pyridine alkaloid biosynthesis,' 'terpenoid backbone biosynthesis' and 'plant hormone signal transduction' by Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis. The candidate genes involved in anthocyanin accumulation in L. radiata petals during flower development stages were also identified, which included 56 structural genes (especially LrDFR1 and LrFLS) as well as 27 key transcription factor DEGs (such as C3H, GATA, MYB, and NAC). In addition, a key structural gene namely LrDFR1 of anthocyanin biosynthesis pathway was identified as a hub gene in anthocyanin metabolism network. During flower development stages, the expression level of LrDFR1 was positively correlated with the anthocyanin content. Subcellular localization revealed that LrDFR1 is majorly localized in the nucleus, cytoplasm and cell membrane. Overexpression of LrDFR1 increased the anthocyanin accumulation in tobacco leaves and Lycoris petals, suggesting that LrDFR1 acts as a positively regulator of anthocyanin biosynthesis. Our results provide new insights for elucidating the function of anthocyanins in L. radiata petal coloring during flower development.
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Affiliation(s)
- Ning Wang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Xiaochun Shu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Fengjiao Zhang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Weibing Zhuang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Tao Wang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Zhong Wang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
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102
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Xue A, Liu Y, Li H, Cui M, Huang X, Wang W, Wu D, Guo X, Hao Y, Luo L. Early detection of Huanglongbing with EESI-MS indicates a role of phenylpropanoid pathway in citrus. Anal Biochem 2021; 639:114511. [PMID: 34883070 DOI: 10.1016/j.ab.2021.114511] [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: 10/19/2021] [Revised: 11/15/2021] [Accepted: 12/01/2021] [Indexed: 12/22/2022]
Abstract
Huanglongbing (HLB), a devastating disease for citrus worldwide, is caused by Candidatus Liberibacter asiaticus (CLas). In this study, we employed a novel extractive electrospray ionization-mass spectrometry (EESI-MS) method to analyze the metabolites in leaves of uninfected and HLB-infected Newhall navel orange. The results showed that uninfected and HLB-infected leaves could be readily distinguished based on EESI-MS combined by multivariable analysis. Nine phenolic compounds involved in phenylpropanoid pathway, such as p-coumaric acid, naringin, and apigenin, were principal components to distinguish the leaves of uninfected and HLB-infected Newhall navel orange. Gene expression was also conducted to further explore the molecular mechanism of phenylpropanoid branch pathway in HLB. The expression of genes (4CL, HCT, CHI, CHS, CYP, and C12R) involved in phenylpropanoid branch pathway was increased in asymptomatic and early period of HLB-infected leaves, while decreased in later period of HLB-infected leaves. This study provides a novel method for early detection of citrus HLB and suggests the regulation mechanism of phenylpropanoid pathway in the interaction between citrus and CLas.
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Affiliation(s)
- Ahui Xue
- School of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Yongquan Liu
- School of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Haoxing Li
- School of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Meng Cui
- School of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Xueyong Huang
- School of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Wenjing Wang
- School of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Dong Wu
- School of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Xiali Guo
- School of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Yingbin Hao
- School of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Liping Luo
- School of Life Sciences, Nanchang University, Nanchang, 330031, China; State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, China.
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103
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Cold Plasma Processing on Fruits and Fruit Juices: A Review on the Effects of Plasma on Nutritional Quality. Processes (Basel) 2021. [DOI: 10.3390/pr9122098] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This review aims to present the effects of cold plasma technology on the nutritional quality of fruits and fruit juices. This review focuses on the chemical changes induced by plasma on several bioactive compounds, such as sugars, starch, lipids, vitamins, phenolic compounds, carotenoids, and anthocyanins. The main plasma-reacting species that reacts with fruit compounds are presented and discussed. The review presents the mechanisms that lead to the improvement and degradation of the main compounds, showing both the advantages and disadvantages of cold plasma technology.
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104
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Önal H, Arslan B, Üçüncü Ergun N, Topuz Ş, Yilmaz Semerci S, Kurnaz ME, Molu YM, Bozkurt MA, Süner N, Kocataş A. Treatment of COVID-19 patients with quercetin: a prospective, single center, randomized, controlled trial. Turk J Biol 2021; 45:518-529. [PMID: 34803451 PMCID: PMC8573830 DOI: 10.3906/biy-2104-16] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 07/02/2021] [Indexed: 12/15/2022] Open
Abstract
Scientific research continues on new preventive and therapeutic strategies against severe acute respiratory syndrome Coronavirus-2 (SARS-CoV-2). So far, there is no proven curative treatment, and a valid alternative therapeutic approach needs to be developed. This study is designed to evaluate the effect of quercetin in COVID-19 treatment. This was a single-centre, prospective randomized controlled cohort study. Routine care versus QCB (quercetin, vitamin C, bromelain) supplementation was compared between 429 patients with at least one chronic disease and moderate-to-severe respiratory symptoms. Demographic features, signs, laboratory results and drug administration data of patients were recorded. The endpoint was that QCB supplementation was continued throughout the follow-up period from study baseline to discharge, intubation, or death. The most common complaints at the time of hospital admission were fatigue (62.4%), cough (61.1%), anorexia (57%), thirst (53.7%), respiratory distress (51%) and chills (48.3%). The decrease in CRP and ferritin levels was higher in the QCB group (all Ps were < 0.05). In the QCB group, the increase in platelet and lymphocyte counts was higher (all Ps were < 0.05). QCB did not reduce the risk of events during follow-up. Adjustments for statistically significant parameters, including the lung stage, use of favipiravir and presence of comorbidity did not change the results. While there was no difference between the groups in terms of event frequency, the QCB group had more advanced pulmonary findings. QCB supplement is shown to have a positive effect on laboratory recovery. While there was no difference between the groups in terms of event frequency, QCB supplement group had more advanced pulmonar findings, and QCB supplement is shown to have a positive effect on laboratory recovery/results. Therefore, we conclude that further studies involving different doses and plasma level measurements are required to reveal the dose/response relationship and bioavailability of QCB for a better understanding of the role of QCB in the treatment of SARS CoV-2.
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Affiliation(s)
- Hasan Önal
- Department of Pediatric Nutrition and Metabolism Clinics, İstanbul Kanuni Sultan Süleyman Training and Research Hospital, İstanbul Turkey
| | - Bengü Arslan
- Department of Pediatric Nutrition and Metabolism Clinics, İstanbul Kanuni Sultan Süleyman Training and Research Hospital, İstanbul Turkey
| | - Nurcan Üçüncü Ergun
- Department of Pediatric Nutrition and Metabolism Clinics, İstanbul Kanuni Sultan Süleyman Training and Research Hospital, İstanbul Turkey
| | - Şeyma Topuz
- Department of Pediatric Nutrition and Metabolism Clinics, İstanbul Kanuni Sultan Süleyman Training and Research Hospital, İstanbul Turkey
| | - Seda Yilmaz Semerci
- Department of Neonatology, İstanbul Kanuni Sultan Süleyman Training and Research Hospital, İstanbul Turkey
| | - Mehmet Eren Kurnaz
- Department of Pediatric Nutrition and Metabolism Clinics, İstanbul Kanuni Sultan Süleyman Training and Research Hospital, İstanbul Turkey
| | - Yulet Miray Molu
- Department of Pediatric Nutrition and Metabolism Clinics, İstanbul Kanuni Sultan Süleyman Training and Research Hospital, İstanbul Turkey
| | - Mehmet Abdussamet Bozkurt
- Department of General Surgery, İstanbul Kanuni Sultan Süleyman Training and Research Hospital, İstanbul Turkey
| | - Nurettin Süner
- Department of General Medicine, İstanbul Kanuni Sultan Süleyman Training and Research Hospital, İstanbul Turkey
| | - Ali Kocataş
- Department of General Surgery, İstanbul Kanuni Sultan Süleyman Training and Research Hospital, İstanbul Turkey
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105
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Yang Y, Li S, Xing Y, Zhang Z, Liu T, Ao W, Bao G, Zhan Z, Zhao R, Zhang T, Zhang D, Song Y, Bian C, Xu L, Kang T. The first high-quality chromosomal genome assembly of a medicinal and edible plant Arctium lappa. Mol Ecol Resour 2021; 22:1493-1507. [PMID: 34758188 DOI: 10.1111/1755-0998.13547] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 08/11/2021] [Accepted: 09/07/2021] [Indexed: 12/20/2022]
Abstract
Arctium lappa has a long medicinal and edible history with great economic importance. Here, the first high-quality chromosome-level draft genome of A. lappa was presented by the Illumina and PacBio sequencing data. The assembled genome was approximately 1.79 Gb with a N50 contig size of 6.88 Mb. Approximately 1.70 Gb (95.4%) of the contig sequences were anchored onto 18 chromosomes using Hi-C data; the scaffold N50 was improved to be 91.64 Mb. Furthermore, we obtained 1.12 Gb (68.46%) of repetitive sequences and 32,771 protein-coding genes; 616 positively selected candidate genes were identified. Among candidate genes related to lignan biosynthesis, the following were found to be highly correlated with the accumulation of arctiin: 4-coumarate-CoA ligase (4CL), dirigent protein (DIR), and hydroxycinnamoyl transferase (HCT). Additionally, we compared the transcriptomes of A. lappa roots at three different developmental stages and identified 8,943 differentially expressed genes (DEGs) in these tissues. These data can be utilized to identify genes related to A. lappa quality or provide a basis for molecular identification and comparative genomics among related species.
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Affiliation(s)
- Yanyun Yang
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
| | - Shengnan Li
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
| | - Yanping Xing
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
| | | | - Tao Liu
- School of Pharmacy, China Medical University, Shenyang, China
| | - Wuliji Ao
- School of Mongol Medicine, Inner Mongolia University for Nationalities, Tongliao, China
| | - Guihua Bao
- School of Mongol Medicine, Inner Mongolia University for Nationalities, Tongliao, China
| | - Zhilai Zhan
- Traditional Chinese Medicine Resource Center, Chinese Academy of Traditional Chinese Medicine, Beijing, China
| | - Rong Zhao
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
| | - Tingting Zhang
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
| | - Dachuan Zhang
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
| | - Yueyue Song
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
| | - Che Bian
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
| | - Liang Xu
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
| | - Tingguo Kang
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
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106
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Yang C, Zhu S, Chen Y, Liu Z, Zhang W, Zhao C, Luo C, Deng H. Flavonoid 4,4'-dimethoxychalcone suppresses cell proliferation via dehydrogenase inhibition and oxidative stress aggravation. Free Radic Biol Med 2021; 175:206-215. [PMID: 34506903 DOI: 10.1016/j.freeradbiomed.2021.09.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 09/01/2021] [Accepted: 09/04/2021] [Indexed: 12/17/2022]
Abstract
Flavonoids are natural polyphenolic compounds with a diverse array of biological activities and health-promoting effects. Recent studies have found that 4,4'-dimethoxychalcone (DMC) promoted longevity via autophagy; however, its targets are currently unknown. Herein, we employed an unbiased thermal proteome profiling (TPP) method and identified multiple targets of DMC, including ALDH1A3, ALDH2, and PTGES2. We further determined the dissociation constant (Kd) of DMC and ALDH1A3 to be 2.8 μM using microscale thermophoresis (MST) analysis, which indicated that DMC inhibited ALDH1A3 activity and aggravated cellular oxidative stress. DMC treatment significantly increased cellular reactive oxygen species (ROS) production and inhibited cancer cell growth. Quantitative proteomic analysis showed that DMC upregulated proteins associated with stress-responses and downregulated proteins associated with cell cycle progression, and this was confirmed using cell cycle analysis. Taken together, we showed that TPP is an effective tool with which to identify flavonoid targets and set a precedent for deciphering flavonoid function in the future. We have demonstrated that DMC inhibited cell proliferation via ROS-induced cell cycle arrest and is an anti-proliferative agent in cancer treatment.
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Affiliation(s)
- Changmei Yang
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systematic Biology, School of Life Sciences, Tsinghua University, Beijing, 100084, PR China
| | - Songbiao Zhu
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systematic Biology, School of Life Sciences, Tsinghua University, Beijing, 100084, PR China
| | - Yuling Chen
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systematic Biology, School of Life Sciences, Tsinghua University, Beijing, 100084, PR China
| | - Zongyuan Liu
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systematic Biology, School of Life Sciences, Tsinghua University, Beijing, 100084, PR China
| | - Wenhao Zhang
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systematic Biology, School of Life Sciences, Tsinghua University, Beijing, 100084, PR China
| | - Chongchong Zhao
- Protein Chemistry and Proteomics Facility, Tsinghua University Technology Center for Protein Research, Beijing, 100084, PR China
| | - Chengting Luo
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systematic Biology, School of Life Sciences, Tsinghua University, Beijing, 100084, PR China
| | - Haiteng Deng
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systematic Biology, School of Life Sciences, Tsinghua University, Beijing, 100084, PR China.
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107
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Wu J, Cui C, Zhang H, Liu D, Schreiber L, Qin W, Wan Y. Identifying new compounds with potential pharmaceutical and physiological activity in Areca catechu and Areca triandra via a non-targeted metabolomic approach. PHYTOCHEMICAL ANALYSIS : PCA 2021; 32:970-981. [PMID: 33619832 DOI: 10.1002/pca.3039] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 02/04/2021] [Accepted: 02/06/2021] [Indexed: 06/12/2023]
Abstract
INTRODUCTION The fruits of Areca catechu, also called areca nuts, are widely used as popular masticatory and traditional herbal medicine in Asia. Besides arecoline and related alkaloids, limited information is available about further primary and secondary metabolites and their potential biological activities. OBJECTIVE Here we aimed to further enhance our knowledge on phytochemical profiles of A. catechu and Areca triandra fruits. We intended to comprehensively identify metabolites in A. catechu and A. triandra fruits. METHODOLOGY Metabolites were identified by ultra-performance liquid chromatography triple-quadrupole tandem mass spectrometry (UPLC-MS/MS). The occurrence of 12 selected bioactive compounds in 4 different developmental stages of A. catechu and A. triandra was quantified by LC-MS/MS. RESULTS A total of 791 metabolites was identified. Of these, 115 metabolites could successfully be mapped to 44 Kyoto Encyclopedia of Genes and Genomes metabolic pathways, and 154 metabolites occurred at significantly different levels in A. catechu compared to A. triandra. Several components with known biological activities were identified for the first time in A. catechu and A. triandra. The abundance of many of these new components was similar in A. catechu and A. triandra, but significantly different between the pericarp and the seeds of A. catechu fruits. CONCLUSIONS Metabolic profiles indicate that fruits of the Areca species compared here have similar primary and secondary metabolites. Our findings provide new insights into A. catechu and A. triandra as valuable sources for traditional medicine and they pave the way for further studies to potentially improve the underlying pharmaceutical and physiological effects.
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Affiliation(s)
- Jiao Wu
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan, 570228, China
| | - Chuang Cui
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan, 570228, China
| | - He Zhang
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan, 570228, China
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, 571737, China
| | - Dongjun Liu
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan, 570228, China
| | - Lukas Schreiber
- Institute of Cellular and Molecular Botany, University of Bonn, D53115, Germany
| | - Weiquan Qin
- Coconut Research Institute, Chinese Academy of Tropical Agriculture Sciences, Wenchang, Hainan, 571339, China
| | - Yinglang Wan
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan, 570228, China
- Huachuang Institute of Areca Research-Hainan, Haikou, Hainan, 570228, China
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108
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Liu Q, Liu Y, Li G, Savolainen O, Chen Y, Nielsen J. De novo biosynthesis of bioactive isoflavonoids by engineered yeast cell factories. Nat Commun 2021; 12:6085. [PMID: 34667183 PMCID: PMC8526750 DOI: 10.1038/s41467-021-26361-1] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 09/30/2021] [Indexed: 11/09/2022] Open
Abstract
Isoflavonoids comprise a class of plant natural products with great nutraceutical, pharmaceutical and agricultural significance. Their low abundance in nature and structural complexity however hampers access to these phytochemicals through traditional crop-based manufacturing or chemical synthesis. Microbial bioproduction therefore represents an attractive alternative. Here, we engineer the metabolism of Saccharomyces cerevisiae to become a platform for efficient production of daidzein, a core chemical scaffold for isoflavonoid biosynthesis, and demonstrate its application towards producing bioactive glucosides from glucose, following the screening-reconstruction-application engineering framework. First, we rebuild daidzein biosynthesis in yeast and its production is then improved by 94-fold through screening biosynthetic enzymes, identifying rate-limiting steps, implementing dynamic control, engineering substrate trafficking and fine-tuning competing metabolic processes. The optimized strain produces up to 85.4 mg L-1 of daidzein and introducing plant glycosyltransferases in this strain results in production of bioactive puerarin (72.8 mg L-1) and daidzin (73.2 mg L-1). Our work provides a promising step towards developing synthetic yeast cell factories for de novo biosynthesis of value-added isoflavonoids and the multi-phased framework may be extended to engineer pathways of complex natural products in other microbial hosts.
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Affiliation(s)
- Quanli Liu
- Department of Biology and Biological Engineering, Chalmers University of Technology, Kemivägen 10, SE-412 96, Gothenburg, Sweden.,Novo Nordisk Foundation Center for Biosustainability, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden
| | - Yi Liu
- Department of Biology and Biological Engineering, Chalmers University of Technology, Kemivägen 10, SE-412 96, Gothenburg, Sweden.,Novo Nordisk Foundation Center for Biosustainability, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden
| | - Gang Li
- Department of Biology and Biological Engineering, Chalmers University of Technology, Kemivägen 10, SE-412 96, Gothenburg, Sweden.,Novo Nordisk Foundation Center for Biosustainability, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden
| | - Otto Savolainen
- Department of Biology and Biological Engineering, Chalmers University of Technology, Kemivägen 10, SE-412 96, Gothenburg, Sweden.,Chalmers Mass Spectrometry Infrastructure, Chalmers University of Technology, Kemivägen 10, SE-412 96, Gothenburg, Sweden.,Institute of Public Health and Clinical Nutrition, University of Eastern Finland, FI-70211, Kuopio, Finland
| | - Yun Chen
- Department of Biology and Biological Engineering, Chalmers University of Technology, Kemivägen 10, SE-412 96, Gothenburg, Sweden.,Novo Nordisk Foundation Center for Biosustainability, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden
| | - Jens Nielsen
- Department of Biology and Biological Engineering, Chalmers University of Technology, Kemivägen 10, SE-412 96, Gothenburg, Sweden. .,Novo Nordisk Foundation Center for Biosustainability, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden. .,Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800, Kongens Lyngby, Denmark. .,BioInnovation Institute, Ole Maaløes vej 3, 2200, Copenhagen N, Denmark.
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109
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Alam W, Rocca C, Khan H, Hussain Y, Aschner M, De Bartolo A, Amodio N, Angelone T, Cheang WS. Current Status and Future Perspectives on Therapeutic Potential of Apigenin: Focus on Metabolic-Syndrome-Dependent Organ Dysfunction. Antioxidants (Basel) 2021; 10:antiox10101643. [PMID: 34679777 PMCID: PMC8533599 DOI: 10.3390/antiox10101643] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 10/13/2021] [Accepted: 10/15/2021] [Indexed: 12/15/2022] Open
Abstract
Metabolic syndrome and its associated disorders such as obesity, insulin resistance, atherosclerosis and type 2 diabetes mellitus are globally prevalent. Different molecules showing therapeutic potential are currently available for the management of metabolic syndrome, although their efficacy has often been compromised by their poor bioavailability and side effects. Studies have been carried out on medicinal plant extracts for the treatment and prevention of metabolic syndrome. In this regard, isolated pure compounds have shown promising efficacy for the management of metabolic syndrome, both in preclinical and clinical settings. Apigenin, a natural bioactive flavonoid widely present in medicinal plants, functional foods, vegetables and fruits, exerts protective effects in models of neurological disorders and cardiovascular diseases and most of these effects are attributed to its antioxidant action. Various preclinical and clinical studies carried out so far show a protective effect of apigenin against metabolic syndrome. Herein, we provide a comprehensive review on both in vitro and in vivo evidence related to the promising antioxidant role of apigenin in cardioprotection, neuroprotection and renoprotection, and to its beneficial action in metabolic-syndrome-dependent organ dysfunction. We also provide evidence on the potential of apigenin in the prevention and/or treatment of metabolic syndrome, analysing the potential and limitation of its therapeutic use.
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Affiliation(s)
- Waqas Alam
- Department of Pharmacy, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan;
| | - Carmine Rocca
- Laboratory of Cellular and Molecular Cardiovascular Physiology, Department of Biology, Ecology and Earth Sciences (Di.B.E.S.T.), University of Calabria, 87036 Rende, Italy; (C.R.); (A.D.B.)
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan;
- Correspondence: or (H.K.); (N.A.); (T.A.)
| | - Yaseen Hussain
- College of Pharmaceutical Sciences, Soochow University, Suzhou 221400, China;
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Forchheimer 209, 1300 Morris Park Avenue, Bronx, NY 10461, USA;
| | - Anna De Bartolo
- Laboratory of Cellular and Molecular Cardiovascular Physiology, Department of Biology, Ecology and Earth Sciences (Di.B.E.S.T.), University of Calabria, 87036 Rende, Italy; (C.R.); (A.D.B.)
| | - Nicola Amodio
- Department of Experimental and Clinical Medicine, Magna Graecia University of Catanzaro, 88100 Catanzaro, Italy
- Correspondence: or (H.K.); (N.A.); (T.A.)
| | - Tommaso Angelone
- Laboratory of Cellular and Molecular Cardiovascular Physiology, Department of Biology, Ecology and Earth Sciences (Di.B.E.S.T.), University of Calabria, 87036 Rende, Italy; (C.R.); (A.D.B.)
- National Institute of Cardiovascular Research I.N.R.C., 40126 Bologna, Italy
- Correspondence: or (H.K.); (N.A.); (T.A.)
| | - Wai San Cheang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macao 999078, China;
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110
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Li L, Kong Z, Huan X, Liu Y, Liu Y, Wang Q, Liu J, Zhang P, Guo Y, Qin P. Transcriptomics Integrated With Widely Targeted Metabolomics Reveals the Mechanism Underlying Grain Color Formation in Wheat at the Grain-Filling Stage. FRONTIERS IN PLANT SCIENCE 2021; 12:757750. [PMID: 34721487 PMCID: PMC8551455 DOI: 10.3389/fpls.2021.757750] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 09/20/2021] [Indexed: 05/26/2023]
Abstract
Colored wheat grains have a unique nutritional value. To elucidate the color formation mechanism in wheat seeds, comprehensive metabolomic and transcriptomic analyses were conducted on purple (Dianmai 20-1), blue (Dianmai 20-8), and white (Dianmai 16) wheat at the grain-filling stage. The results showed that the flavonoid biosynthesis pathway was closely related to grain color formation. Among the 603 metabolites identified in all varieties, there were 98 flavonoids. Forty-six flavonoids were detected in purple and blue wheat, and there were fewer flavonoids in white wheat than in colored wheat. Integrated transcriptomic and metabolomic analyses showed that gene expression modulated the flavonoid composition and content, resulting in different metabolite levels of pelargonidin, cyanidin, and delphinidin, thus affecting the color formation of wheat grains. The present study clarifies the mechanism by which pigmentation develops in wheat grains and provides an empirical reference for colored wheat breeding.
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Affiliation(s)
- Li Li
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Zhiyou Kong
- College of Natural Resources and Environment, Baoshan University, Baoshan, China
| | - Xiuju Huan
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Yeju Liu
- Graduate Office, Yunnan Agricultural University, Kunming, China
| | - Yongjiang Liu
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Qianchao Wang
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Junna Liu
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Ping Zhang
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Yirui Guo
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Peng Qin
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
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Wu Z, Liu H, Zhan W, Yu Z, Qin E, Liu S, Yang T, Xiang N, Kudrna D, Chen Y, Lee S, Li G, Wing RA, Liu J, Xiong H, Xia C, Xing Y, Zhang J, Qin R. The chromosome-scale reference genome of safflower (Carthamus tinctorius) provides insights into linoleic acid and flavonoid biosynthesis. PLANT BIOTECHNOLOGY JOURNAL 2021; 19:1725-1742. [PMID: 33768699 PMCID: PMC8428823 DOI: 10.1111/pbi.13586] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 03/08/2021] [Accepted: 03/16/2021] [Indexed: 05/04/2023]
Abstract
Safflower (Carthamus tinctorius L.), a member of the Asteraceae, is a popular crop due to its high linoleic acid (LA) and flavonoid (such as hydroxysafflor yellow A) contents. Here, we report the first high-quality genome assembly (contig N50 of 21.23 Mb) for the 12 pseudochromosomes of safflower using single-molecule real-time sequencing, Hi-C mapping technologies and a genetic linkage map. Phyloge nomic analysis showed that safflower diverged from artichoke (Cynara cardunculus) and sunflower (Helianthus annuus) approximately 30.7 and 60.5 million years ago, respectively. Comparative genomic analyses revealed that uniquely expanded gene families in safflower were enriched for those predicted to be involved in lipid metabolism and transport and abscisic acid signalling. Notably, the fatty acid desaturase 2 (FAD2) and chalcone synthase (CHS) families, which function in the LA and flavonoid biosynthesis pathways, respectively, were expanded via tandem duplications in safflower. CarFAD2-12 was specifically expressed in seeds and was vital for high-LA content in seeds, while tandemly duplicated CarFAD2 genes were up-regulated in ovaries compared to CarFAD2-12, which indicates regulatory divergence of FAD2 in seeds and ovaries. CarCHS1, CarCHS4 and tandem-duplicated CarCHS5˜CarCHS6, which were up-regulated compared to other CarCHS members at early stages, contribute to the accumulation of major flavonoids in flowers. In addition, our data reveal multiple alternative splicing events in gene families related to fatty acid and flavonoid biosynthesis. Together, these results provide a high-quality reference genome and evolutionary insights into the molecular basis of fatty acid and flavonoid biosynthesis in safflower.
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Affiliation(s)
- Zhihua Wu
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of ChinaKey Laboratory of State Ethnic Affairs Commission for Biological TechnologyCollege of Life SciencesSouth‐Central University for NationalitiesWuhanChina
| | - Hong Liu
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of ChinaKey Laboratory of State Ethnic Affairs Commission for Biological TechnologyCollege of Life SciencesSouth‐Central University for NationalitiesWuhanChina
| | - Wei Zhan
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of ChinaKey Laboratory of State Ethnic Affairs Commission for Biological TechnologyCollege of Life SciencesSouth‐Central University for NationalitiesWuhanChina
| | - Zhichao Yu
- National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhanChina
| | - Erdai Qin
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of ChinaKey Laboratory of State Ethnic Affairs Commission for Biological TechnologyCollege of Life SciencesSouth‐Central University for NationalitiesWuhanChina
| | - Shuo Liu
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of ChinaKey Laboratory of State Ethnic Affairs Commission for Biological TechnologyCollege of Life SciencesSouth‐Central University for NationalitiesWuhanChina
| | - Tiange Yang
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of ChinaKey Laboratory of State Ethnic Affairs Commission for Biological TechnologyCollege of Life SciencesSouth‐Central University for NationalitiesWuhanChina
| | - Niyan Xiang
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of ChinaKey Laboratory of State Ethnic Affairs Commission for Biological TechnologyCollege of Life SciencesSouth‐Central University for NationalitiesWuhanChina
| | - Dave Kudrna
- Arizona Genomics InstituteSchool of Plant SciencesUniversity of ArizonaTucsonAZUSA
| | - Yan Chen
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of ChinaKey Laboratory of State Ethnic Affairs Commission for Biological TechnologyCollege of Life SciencesSouth‐Central University for NationalitiesWuhanChina
| | - Seunghee Lee
- Arizona Genomics InstituteSchool of Plant SciencesUniversity of ArizonaTucsonAZUSA
| | - Gang Li
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of ChinaKey Laboratory of State Ethnic Affairs Commission for Biological TechnologyCollege of Life SciencesSouth‐Central University for NationalitiesWuhanChina
| | - Rod A. Wing
- Arizona Genomics InstituteSchool of Plant SciencesUniversity of ArizonaTucsonAZUSA
- Center for Desert Agriculture, Biological and Environmental Sciences and Engineering Division (BESE)King Abdullah University of Science and Technology (KAUST)ThuwalSaudi Arabia
| | - Jiao Liu
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of ChinaKey Laboratory of State Ethnic Affairs Commission for Biological TechnologyCollege of Life SciencesSouth‐Central University for NationalitiesWuhanChina
| | - Hairong Xiong
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of ChinaKey Laboratory of State Ethnic Affairs Commission for Biological TechnologyCollege of Life SciencesSouth‐Central University for NationalitiesWuhanChina
| | - Chunjiao Xia
- National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhanChina
| | - Yongzhong Xing
- National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhanChina
| | - Jianwei Zhang
- National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhanChina
| | - Rui Qin
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of ChinaKey Laboratory of State Ethnic Affairs Commission for Biological TechnologyCollege of Life SciencesSouth‐Central University for NationalitiesWuhanChina
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Otify AM, Hammam AMM, Aly Farag M. Phoenix dactylifera L. date tree pollen fertility effects on female rats in relation to its UPLC-MS profile via a biochemometric approach. Steroids 2021; 173:108888. [PMID: 34237316 DOI: 10.1016/j.steroids.2021.108888] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 05/04/2021] [Accepted: 06/28/2021] [Indexed: 11/23/2022]
Abstract
Date palm (Phoenix dactylifera L.) is among the most ancient cultivated crops, of special value owing to its fruits high nutritive and economic benefits. Asides, date palm pollen is a high energy material that has been used traditionally used for fertility enhancement. In this study, effects of date palm pollen crude extract and its fractions viz., petroleum ether, methylene chloride, ethyl acetate and n-butanol on the female reproductive system were evaluated for the first time in relation to its metabolite fingerprint. Fertility activity was evaluated in immature female rats by assessing their FSH-, LH- and estrogen- activities. To pinpoint active hormonal agents in crude pollen extract and fractions, UPLC- MS analysis was employed for metabolites profiling, and in correlation to extract/fraction bioassays using multivariate OPLS analysis. Results revealed that both polar n-butanol and non-polar petroleum ether fractions exhibited the strongest activities; with a significant increase in FSH (25.7 mIU/ml in n-butanol group), estradiol (414.7 pg/ml in petroleum ether group) and progesterone levels (122.4 pg/ml in n-butanol group). Correlation between UPLC-MS and fraction bioassays was attempted using multivariate OPLS analysis to reveal for bioactive hits in these fractions. This study provides the first report on the fertility effect of date palm pollen in female rats and in relation to its metabolite fingerprint.
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Affiliation(s)
- Asmaa M Otify
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | | | - Mohamed Aly Farag
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt; Department of Chemistry, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt.
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Wu M, Gong DC, Yang Q, Zhang MQ, Mei YZ, Dai CC. Activation of Naringenin and Kaempferol through Pathway Refactoring in the Endophyte Phomopsis Liquidambaris. ACS Synth Biol 2021; 10:2030-2039. [PMID: 34251173 DOI: 10.1021/acssynbio.1c00205] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Abundant gene clusters of natural products are observed in the endophytic fungus Phomopsis liquidambaris; however, most of them are silent. Herein, a plug-and-play DNA assembly tool has been applied for flavonoid synthesis in P. liquidambaris. A shuttle plasmid was constructed based on S. cerevisiae, E. coli, and P. liquidambaris with screening markers URA, Amp, and hygR, respectively. Each fragment or cassette was successively assembled by overlap extension PCR with at least 40-50 bp homologous arms in S. cerevisiae for generating a new vector. Seven native promoters were screened by the DNA assembly based on the fluorescence intensity of the mCherry reporter gene in P. liquidambaris, and two of them were new promoters. The key enzyme chalcone synthase was the limiting step of the pathway. The naringenin and kaempferol pathways were refactored and activated with the titers of naringenin and kaempferol of 121.53 mg/L and 75.38 mg/L in P. liquidambaris using fed-batch fermentation, respectively. This study will be efficient and helpful for the biosynthesis of secondary metabolites.
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Affiliation(s)
- Mei Wu
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Nanjing 210023, Jiangsu Province China
| | - Da-Chun Gong
- China Key Laboratory of Light Industry Functional Yeast, Three Gorges University, Yichang, 443000, Hubei Province China
| | - Qian Yang
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Nanjing 210023, Jiangsu Province China
| | - Meng-Qian Zhang
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Nanjing 210023, Jiangsu Province China
| | - Yan-Zhen Mei
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Nanjing 210023, Jiangsu Province China
| | - Chuan-Chao Dai
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Nanjing 210023, Jiangsu Province China
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Gene-Metabolite Network Analysis Revealed Tissue-Specific Accumulation of Therapeutic Metabolites in Mallotus japonicus. Int J Mol Sci 2021; 22:ijms22168835. [PMID: 34445541 PMCID: PMC8396295 DOI: 10.3390/ijms22168835] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/11/2021] [Accepted: 08/12/2021] [Indexed: 02/06/2023] Open
Abstract
Mallotus japonicus is a valuable traditional medicinal plant in East Asia for applications as a gastrointestinal drug. However, the molecular components involved in the biosynthesis of bioactive metabolites have not yet been explored, primarily due to a lack of omics resources. In this study, we established metabolome and transcriptome resources for M. japonicus to capture the diverse metabolite constituents and active transcripts involved in its biosynthesis and regulation. A combination of untargeted metabolite profiling with data-dependent metabolite fragmentation and metabolite annotation through manual curation and feature-based molecular networking established an overall metabospace of M. japonicus represented by 2129 metabolite features. M. japonicus de novo transcriptome assembly showed 96.9% transcriptome completeness, representing 226,250 active transcripts across seven tissues. We identified specialized metabolites biosynthesis in a tissue-specific manner, with a strong correlation between transcripts expression and metabolite accumulations in M. japonicus. The correlation- and network-based integration of metabolome and transcriptome datasets identified candidate genes involved in the biosynthesis of key specialized metabolites of M. japonicus. We further used phylogenetic analysis to identify 13 C-glycosyltransferases and 11 methyltransferases coding candidate genes involved in the biosynthesis of medicinally important bergenin. This study provides comprehensive, high-quality multi-omics resources to further investigate biological properties of specialized metabolites biosynthesis in M. japonicus.
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115
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Tsitsekian D, Daras G, Karamanou K, Templalexis D, Koudounas K, Malliarakis D, Koufakis T, Chatzopoulos D, Goumas D, Ntoukakis V, Hatzopoulos P, Rigas S. Clavibacter michiganensis Downregulates Photosynthesis and Modifies Monolignols Metabolism Revealing a Crosstalk with Tomato Immune Responses. Int J Mol Sci 2021; 22:8442. [PMID: 34445148 PMCID: PMC8395114 DOI: 10.3390/ijms22168442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 07/29/2021] [Accepted: 08/02/2021] [Indexed: 11/17/2022] Open
Abstract
The gram-positive pathogenic bacterium Clavibacter michiganensis subsp. michiganensis (Cmm) causes bacterial canker disease in tomato, affecting crop yield and fruit quality. To understand how tomato plants respond, the dynamic expression profile of host genes was analyzed upon Cmm infection. Symptoms of bacterial canker became evident from the third day. As the disease progressed, the bacterial population increased in planta, reaching the highest level at six days and remained constant till the twelfth day post inoculation. These two time points were selected for transcriptomics. A progressive down-regulation of key genes encoding for components of the photosynthetic apparatus was observed. Two temporally separated defense responses were observed, which were to an extent interdependent. During the primary response, genes of the phenylpropanoid pathway were diverted towards the synthesis of monolignols away from S-lignin. In dicots, lignin polymers mainly consist of G- and S-units, playing an important role in defense. The twist towards G-lignin enrichment is consistent with previous findings, highlighting a response to generate an early protective barrier and to achieve a tight interplay between lignin recomposition and the primary defense response mechanism. Upon progression of Cmm infection, the temporal deactivation of phenylpropanoids coincided with the upregulation of genes that belong in a secondary response mechanism, supporting an elegant reprogramming of the host transcriptome to establish a robust defense apparatus and suppress pathogen invasion. This high-throughput analysis reveals a dynamic reorganization of plant defense mechanisms upon bacterial infection to implement an array of barriers preventing pathogen invasion and spread.
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Affiliation(s)
- Dikran Tsitsekian
- Laboratory of Molecular Biology, Department of Biotechnology, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece; (D.T.); (G.D.); (K.K.); (D.T.); (K.K.)
| | - Gerasimos Daras
- Laboratory of Molecular Biology, Department of Biotechnology, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece; (D.T.); (G.D.); (K.K.); (D.T.); (K.K.)
| | - Konstantina Karamanou
- Laboratory of Molecular Biology, Department of Biotechnology, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece; (D.T.); (G.D.); (K.K.); (D.T.); (K.K.)
| | - Dimitris Templalexis
- Laboratory of Molecular Biology, Department of Biotechnology, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece; (D.T.); (G.D.); (K.K.); (D.T.); (K.K.)
| | - Konstantinos Koudounas
- Laboratory of Molecular Biology, Department of Biotechnology, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece; (D.T.); (G.D.); (K.K.); (D.T.); (K.K.)
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, 37200 Tours, France
| | - Dimitris Malliarakis
- Laboratory of Plant Pathology-Bacteriology, Department of Agriculture, School of Agricultural Sciences, Hellenic Mediterranean University, Estavromenos, 71004 Heraklio, Greece; (D.M.); (D.G.)
| | | | | | - Dimitris Goumas
- Laboratory of Plant Pathology-Bacteriology, Department of Agriculture, School of Agricultural Sciences, Hellenic Mediterranean University, Estavromenos, 71004 Heraklio, Greece; (D.M.); (D.G.)
| | - Vardis Ntoukakis
- School of Life Sciences and Warwick Integrative Synthetic Biology Centre, University of Warwick, Coventry CV4 7AL, UK;
| | - Polydefkis Hatzopoulos
- Laboratory of Molecular Biology, Department of Biotechnology, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece; (D.T.); (G.D.); (K.K.); (D.T.); (K.K.)
| | - Stamatis Rigas
- Laboratory of Molecular Biology, Department of Biotechnology, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece; (D.T.); (G.D.); (K.K.); (D.T.); (K.K.)
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Luo ZW, Ahn JH, Chae TU, Choi SY, Park SY, Choi Y, Kim J, Prabowo CPS, Lee JA, Yang D, Han T, Xu H, Lee SY. Metabolic Engineering of
Escherichia
coli. Metab Eng 2021. [DOI: 10.1002/9783527823468.ch11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Kumar S, Chang YC, Lai KH, Hwang TL. Resveratrol, a Molecule with Anti-Inflammatory and Anti-Cancer Activities: Natural Product to Chemical Synthesis. Curr Med Chem 2021; 28:3773-3786. [PMID: 32957870 DOI: 10.2174/0929867327999200918100746] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 08/10/2020] [Accepted: 08/15/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Resveratrol, a natural polyphenol product, is used in plant defense from fungal and microbial aggression. It is found naturally, especially in plants such as grapes, peanuts, and berries. It has the highest concentrations in blueberries, mulberries, blackberries, and the skin of red grapes. Resveratrol has various pharmacological properties such as anti-inflammatory, cytoprotective, and antineoplastic activities. METHODS We conducted a literature survey using standard tools such as Google, Reaxys, Scifinder, Scihub, and patent Espacenet to compile the biosynthetic pathways, all organic synthetic methods, and biological activities reported for resveratrol till date. RESULTS More than one hundred research articles and patents were referred to write this review. About twenty-five of them are related to chemical synthesis, and the rests are about the source, pharmacological activity, and other properties of resveratrol. This study reveals that many common pathways are involved in various pharmacological activities, which can be useful for treating various diseases based on the pathways involved. Reactions such as Pfitzner-Moffatt oxidation, Wittig-Horner condensation, Mizoroki-Heck, Perkin, Wittig, etc. have been used in resveratrol synthesis. A structure-activity relationship was also established based on its analogs and derivatives. CONCLUSION This review examined and reported all the published biological activities and chemical syntheses of resveratrol apart from the biosynthetic pathway. Due to its valuable biological activities, various synthetic approaches have been reported till date. The reported synthetic operations are suitable for large-scale industrial production. Moreover, these comprehensive synthetic procedures could be utilized in the preparation of stilbenes and other related compounds in future endeavors.
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Affiliation(s)
- Sunil Kumar
- Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan 33302, Taiwan
| | - Yu-Chia Chang
- Research Center for Chinese Herbal Medicine, Graduate Institute of Healthy Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 33303, Taiwan
| | - Kuei-Hung Lai
- Research Center for Chinese Herbal Medicine, Graduate Institute of Healthy Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 33303, Taiwan
| | - Tsong-Long Hwang
- Research Center for Chinese Herbal Medicine, Graduate Institute of Healthy Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 33303, Taiwan
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Singha KM, Singh B, Pandey P. Host specific endophytic microbiome diversity and associated functions in three varieties of scented black rice are dependent on growth stage. Sci Rep 2021; 11:12259. [PMID: 34112830 PMCID: PMC8192550 DOI: 10.1038/s41598-021-91452-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 05/26/2021] [Indexed: 11/16/2022] Open
Abstract
The compositional and functional role of the endophytic bacterial community, associated with black scented rice, in correlation with its antioxidant property has been elucidated. Community dissimilarity analysis confirmed the overlapping of community in shoot and root tissues at the young stage, but not in mature plants. Proteobacteria was the most abundant phylum, in which Agrobacterium, Pleomorphomonas, Bradyrhizobium, Novasphingobium, Caulobacter were the most abundant genera, followed by Cyanobacteria and Planctomycetes in all three different varieties of the black rice. The antioxidant activity of mature plants was found to be higher in comparison to young plants. Intrinsically, the relative abundance of Pleomorphomonas and Streptomyces was positively correlated with total phenol content, while Gemmata, unclassified Pirellulaceae, unclassified Stramenopiles positively correlated with total flavonoid content and negatively correlated with Free radical scavenging activity. Accordingly, functional metagenome analysis of the endophytic microbiome revealed that naringenin -3-dioxygenase and anthocyanidin 3-O-glucosyltransferase for phenylpropanoid (flavonoid and anthocyanin) synthesis were abundant in the endophytic microbiome of mature plants. Specific enrichment of the antioxidant producing genes in the mature plant endophytic microbiome was assigned to some bacteria such as Streptomyces, Pantoea which might have contributed to the common pathway of flavonoid synthesis. The genomes of endophytic isolates Kluyvera sp.PO2S7, Bacillus subtilis AMR1 and Enterobacter sp. SES19 were sequenced and annotated, and were found to have genes for phenylpropanoid synthesis in their genomes.
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Affiliation(s)
- K Malabika Singha
- Department of Microbiology, Assam University, Silchar, 788011, India
| | - Brahmanand Singh
- Department of Pharmacognosy and Ethnopharmacology, CSIR-National Botanical Research Institute, Lucknow, Uttar Pradesh, 226001, India
| | - Piyush Pandey
- Department of Microbiology, Assam University, Silchar, 788011, India.
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Lu J, Zhang Q, Lang L, Jiang C, Wang X, Sun H. Integrated metabolome and transcriptome analysis of the anthocyanin biosynthetic pathway in relation to color mutation in miniature roses. BMC PLANT BIOLOGY 2021; 21:257. [PMID: 34088264 PMCID: PMC8176584 DOI: 10.1186/s12870-021-03063-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 05/24/2021] [Indexed: 06/01/2023]
Abstract
BACKGROUND Roses are famous ornamental plants worldwide. Floral coloration is one of the most prominent traits in roses and is mainly regulated through the anthocyanin biosynthetic pathway. In this study, we investigated the key genes and metabolites of the anthocyanin biosynthetic pathway involved in color mutation in miniature roses. A comparative metabolome and transcriptome analysis was carried out on the Neptune King rose and its color mutant, Queen rose, at the blooming stage. Neptune King rose has light pink colored petals while Queen rose has deep pink colored petals. RESULT A total of 190 flavonoid-related metabolites and 38,551 unique genes were identified. The contents of 45 flavonoid-related metabolites, and the expression of 15 genes participating in the flavonoid pathway, varied significantly between the two cultivars. Seven anthocyanins (cyanidin 3-O-glucosyl-malonylglucoside, cyanidin O-syringic acid, cyanidin 3-O-rutinoside, cyanidin 3-O-galactoside, cyanidin 3-O-glucoside, peonidin 3-O-glucoside chloride, and pelargonidin 3-O-glucoside) were found to be the major metabolites, with higher abundance in the Queen rose. Thirteen anthocyanin biosynthetic related genes showed an upregulation trend in the mutant flower, which may favor the higher levels of anthocyanins in the mutant. Besides, eight TRANSPARENT TESTA 12 genes were found upregulated in Queen rose, probably contributing to a high vacuolar sequestration of anthocyanins. Thirty transcription factors, including two MYB and one bHLH, were differentially expressed between the two cultivars. CONCLUSIONS This study provides important insights into major genes and metabolites of the anthocyanin biosynthetic pathway modulating flower coloration in miniature rose. The results will be conducive for manipulating the anthocyanin pathways in order to engineer novel miniature rose cultivars with specific colors.
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Affiliation(s)
- Jiaojiao Lu
- Key Laboratory of Protected Horticulture of Education Ministry and Liaoning Province, College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Liaoning Academy of Agricultural Sciences, Shenyang, 110161, China
| | - Qing Zhang
- Liaoning Academy of Agricultural Sciences, Shenyang, 110161, China
| | - Lixin Lang
- Liaoning Academy of Agricultural Sciences, Shenyang, 110161, China
| | - Chuang Jiang
- Liaoning Academy of Agricultural Sciences, Shenyang, 110161, China
| | - Xiaofeng Wang
- Liaoning Academy of Agricultural Sciences, Shenyang, 110161, China
| | - Hongmei Sun
- Key Laboratory of Protected Horticulture of Education Ministry and Liaoning Province, College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China.
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Pereira R, Ishchuk OP, Li X, Liu Q, Liu Y, Otto M, Chen Y, Siewers V, Nielsen J. Metabolic Engineering of Yeast. Metab Eng 2021. [DOI: 10.1002/9783527823468.ch18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Patrick RM, Huang XQ, Dudareva N, Li Y. Dynamic histone acetylation in floral volatile synthesis and emission in petunia flowers. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:3704-3722. [PMID: 33606881 PMCID: PMC8096599 DOI: 10.1093/jxb/erab072] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 02/15/2021] [Indexed: 05/29/2023]
Abstract
Biosynthesis of secondary metabolites relies on primary metabolic pathways to provide precursors, energy, and cofactors, thus requiring coordinated regulation of primary and secondary metabolic networks. However, to date, it remains largely unknown how this coordination is achieved. Using Petunia hybrida flowers, which emit high levels of phenylpropanoid/benzenoid volatile organic compounds (VOCs), we uncovered genome-wide dynamic deposition of histone H3 lysine 9 acetylation (H3K9ac) during anthesis as an underlying mechanism to coordinate primary and secondary metabolic networks. The observed epigenome reprogramming is accompanied by transcriptional activation at gene loci involved in primary metabolic pathways that provide precursor phenylalanine, as well as secondary metabolic pathways to produce volatile compounds. We also observed transcriptional repression among genes involved in alternative phenylpropanoid branches that compete for metabolic precursors. We show that GNAT family histone acetyltransferase(s) (HATs) are required for the expression of genes involved in VOC biosynthesis and emission, by using chemical inhibitors of HATs, and by knocking down a specific HAT gene, ELP3, through transient RNAi. Together, our study supports that regulatory mechanisms at chromatin level may play an essential role in activating primary and secondary metabolic pathways to regulate VOC synthesis in petunia flowers.
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Affiliation(s)
- Ryan M Patrick
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN 47907,USA
- Purdue Center for Plant Biology, Purdue University, West Lafayette, IN 47907,USA
| | - Xing-Qi Huang
- Purdue Center for Plant Biology, Purdue University, West Lafayette, IN 47907,USA
- Department of Biochemistry, Purdue University, West Lafayette, IN 47907,USA
| | - Natalia Dudareva
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN 47907,USA
- Purdue Center for Plant Biology, Purdue University, West Lafayette, IN 47907,USA
- Department of Biochemistry, Purdue University, West Lafayette, IN 47907,USA
| | - Ying Li
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN 47907,USA
- Purdue Center for Plant Biology, Purdue University, West Lafayette, IN 47907,USA
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Yang R, Du H, Sun Y, Zhang F, Zhang W, Wan C, Chen J, Zhu L. Effects of nitric oxide on the alleviation of postharvest disease induced by
Penicillium italicum
in navel orange fruits. Int J Food Sci Technol 2021. [DOI: 10.1111/ijfs.15054] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Rui Yang
- College of Food Science & Technology Jiangxi Agricultural University Nanchang Jiangxi 330045 China
| | - Huaying Du
- College of Food Science & Technology Jiangxi Agricultural University Nanchang Jiangxi 330045 China
| | - Ying Sun
- College of Food Science & Technology Jiangxi Agricultural University Nanchang Jiangxi 330045 China
| | - Fengying Zhang
- College of Food Science & Technology Jiangxi Agricultural University Nanchang Jiangxi 330045 China
| | - Wei Zhang
- College of Food Science & Technology Jiangxi Agricultural University Nanchang Jiangxi 330045 China
| | - Chunpeng Wan
- Jiangxi Key Laboratory for Postharvest Technology & Nondestructive Testing of Fruits & Vegetables Collaborative Innovation Center of Postharvest Key Technology & Quality Safety of Fruits & Vegetables College of Agronomy Jiangxi Agricultural University Nanchang Jiangxi 330045 China
| | - Jinyin Chen
- Jiangxi Key Laboratory for Postharvest Technology & Nondestructive Testing of Fruits & Vegetables Collaborative Innovation Center of Postharvest Key Technology & Quality Safety of Fruits & Vegetables College of Agronomy Jiangxi Agricultural University Nanchang Jiangxi 330045 China
- College of Materials & Chemical Engineering Pingxiang University Pingxiang Jiangxi 330045 China
| | - Liqin Zhu
- College of Food Science & Technology Jiangxi Agricultural University Nanchang Jiangxi 330045 China
- Jiangxi Key Laboratory for Postharvest Technology & Nondestructive Testing of Fruits & Vegetables Collaborative Innovation Center of Postharvest Key Technology & Quality Safety of Fruits & Vegetables College of Agronomy Jiangxi Agricultural University Nanchang Jiangxi 330045 China
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BTH Treatment Delays the Senescence of Postharvest Pitaya Fruit in Relation to Enhancing Antioxidant System and Phenylpropanoid Pathway. Foods 2021; 10:foods10040846. [PMID: 33924541 PMCID: PMC8069018 DOI: 10.3390/foods10040846] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/07/2021] [Accepted: 04/08/2021] [Indexed: 01/03/2023] Open
Abstract
The plant resistance elicitor Benzo (1,2,3)-thiadiazole-7-carbothioic acid S-methyl ester (BTH) can enhance disease resistance of harvested fruit. Nonetheless, it is still unknown whether BTH plays a role in regulating fruit senescence. In this study, exogenous BTH treatment efficiently delayed the senescence of postharvest pitaya fruit with lower lipid peroxidation level. Furthermore, BTH-treated fruit exhibited lower hydrogen peroxide (H2O2) content, higher contents of reduced ascorbic acid (AsA) and reduced glutathione (GSH) levels and higher ratios of reduced to oxidized glutathione (GSH/GSSG) and ascorbic acid (AsA/DHA), as well as higher activities of ROS scavenging enzymes, including superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), peroxidase (POD) and glutathione reductase (GR) in comparison with control fruit. Moreover, BTH treatment enhanced the activities of phenylpropanoid pathway-related enzymes, including cinnamate-4-hydroxylase (C4H), phenylalanine ammonia-lyase (PAL) and 4-coumarate/coenzyme A ligase (4CL) and the levels of phenolics, flavonoids and lignin. In addition, BTH treatment upregulated the expression of HuSOD1/3/4, HuCAT2, HuAPX1/2 and HuPOD1/2/4 genes. These results suggested that application of BTH delayed the senescence of harvested pitaya fruit in relation to enhanced antioxidant system and phenylpropanoid pathway.
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Kan D, Zhao D, Duan P. In silico identification of Capsicum type III polyketide synthase genes and expression patterns in Capsicum annuum. Open Life Sci 2021; 15:753-762. [PMID: 33817263 PMCID: PMC7747517 DOI: 10.1515/biol-2020-0077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/12/2020] [Accepted: 06/25/2020] [Indexed: 11/15/2022] Open
Abstract
Studies have shown that abundant and various flavonoids accumulate in chili pepper (Capsicum), but there are few reports on the genes that govern chili pepper flavonoid biosynthesis. Here, we report the comprehensive identification of genes encoding type III polyketide synthase (PKS), an important enzyme catalyzing the generation of flavonoid backbones. In total, 13, 14 and 13 type III PKS genes were identified in each genome of C. annuum, C. chinense and C. baccatum, respectively. The phylogeny topology of Capsicum PKSs is similar to those in other plants, as it showed two classes of genes. Within each class, clades can be further identified. Class II genes likely encode chalcone synthase (CHS) as they are placed together with the Arabidopsis CHS gene, which experienced extensive expansions in the genomes of Capsicum. Interestingly, 8 of the 11 Class II genes form three clusters in the genome of C. annuum, which is likely the result of tandem duplication events. Four genes are not expressed in the tissues of C. annuum, three of which are located in the clusters, indicating that a portion of genes was pseudogenized after tandem duplications. Expression of two Class I genes was complementary to each other, and all the genes in Class II were not expressed in roots of C. annuum. Two Class II genes (CA00g90790 and CA05g17060) showed upregulated expression as the chili pepper leaves matured, and two Class II genes (CA05g17060 and CA12g20070) showed downregulated expression with the maturation of fruits, consistent with flavonoid accumulation trends in chili pepper as reported previously. The identified genes, sequences, phylogeny and expression information collected in this article lay the groundwork for future studies on the molecular mechanisms of chili pepper flavonoid metabolism.
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Affiliation(s)
- Delong Kan
- Henan Provincial Academician Workstation of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project, Collaborative Innovation Center of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, Henan Provincial Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, Nanyang Normal University, Nanyang, Henan Province, 473061, China
| | - Di Zhao
- College of Environmental Science and Tourism, Nanyang Normal University, Nanyang, Henan Province, 473061, China
| | - Pengfei Duan
- Henan Provincial Academician Workstation of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project, Collaborative Innovation Center of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, Henan Provincial Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, Nanyang Normal University, Nanyang, Henan Province, 473061, China
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Marathe SJ, Shah NN, Bajaj SR, Singhal RS. Esterification of anthocyanins isolated from floral waste: Characterization of the esters and their application in various food systems. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2020.100852] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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127
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Gómez-Martínez H, Gil-Muñoz F, Bermejo A, Zuriaga E, Badenes ML. Insights of Phenolic Pathway in Fruits: Transcriptional and Metabolic Profiling in Apricot ( Prunus armeniaca). Int J Mol Sci 2021; 22:ijms22073411. [PMID: 33810284 PMCID: PMC8037730 DOI: 10.3390/ijms22073411] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 03/17/2021] [Accepted: 03/24/2021] [Indexed: 11/16/2022] Open
Abstract
There is an increasing interest in polyphenols, plant secondary metabolites, in terms of fruit quality and diet, mainly due to their antioxidant effect. However, the identification of key gene enzymes and their roles in the phenylpropanoid pathway in temperate fruits species remains uncertain. Apricot (Prunus armeniaca) is a Mediterranean fruit with high diversity and fruit quality properties, being an excellent source of polyphenol compounds. For a better understanding of the phenolic pathway in these fruits, we selected a set of accessions with genetic-based differences in phenolic compounds accumulation. HPLC analysis of the main phenolic compounds and transcriptional analysis of the genes involved in key steps of the polyphenol network were carried out. Phenylalanine ammonia-lyase (PAL), dihydroflavonol-4-reductase (DFR) and flavonol synthase (FLS) were the key enzymes selected. Orthologous of the genes involved in transcription of these enzymes were identified in apricot: ParPAL1, ParPAL2, ParDFR, ParFLS1 and ParFLS2. Transcriptional data of the genes involved in those critical points and their relationships with the polyphenol compounds were analyzed. Higher expression of ParDFR and ParPAL2 has been associated with red-blushed accessions. Differences in expression between paralogues could be related to the presence of a BOXCOREDCPAL cis-acting element related to the genes involved in anthocyanin synthesis ParFLS2, ParDFR and ParPAL2.
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Chang C, Liu B, Bao Y, Tao Y, Liu W. Efficient bioconversion of raspberry ketone in Escherichia coli using fatty acids feedstocks. Microb Cell Fact 2021; 20:68. [PMID: 33706766 PMCID: PMC7953670 DOI: 10.1186/s12934-021-01551-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 02/21/2021] [Indexed: 02/02/2023] Open
Abstract
Background Phenylpropanoid including raspberry ketone, is a kind of important natural plant product and widely used in pharmaceuticals, chemicals, cosmetics, and healthcare products. Bioproduction of phenylpropanoid in Escherichia coli and other microbial cell factories is an attractive approach considering the low phenylpropanoid contents in plants. However, it is usually difficult to produce high titer phenylpropanoid production when fermentation using glucose as carbon source. Developing novel bioprocess using alternative sources might provide a solution to this problem. In this study, typical phenylpropanoid raspberry ketone was used as the target product to develop a biosynthesis pathway for phenylpropanoid production from fatty acids, a promising alternative low-cost feedstock. Results A raspberry ketone biosynthesis module was developed and optimized by introducing 4-coumarate-CoA ligase (4CL), benzalacetone synthase (BAS), and raspberry ketone reductase (RZS) in Escherichia coli strains CR1–CR4. Then strain CR5 was developed by introducing raspberry ketone biosynthesis module into a fatty acids-utilization chassis FA09 to achieve production of raspberry ketone from fatty acids feedstock. However, the production of raspberry ketone was still limited by the low biomass and unable to substantiate whole-cell bioconversion process. Thus, a process by coordinately using fatty-acids and glycerol was developed. In addition, we systematically screened and optimized fatty acids-response promoters. The optimized promoter Pfrd3 was then successfully used for the efficient expression of key enzymes of raspberry ketone biosynthesis module during bioconversion from fatty acids. The final engineered strain CR8 could efficiently produce raspberry ketone repeatedly using bioconversion from fatty acids feedstock strategy, and was able to produce raspberry ketone to a concentration of 180.94 mg/L from soybean oil in a 1-L fermentation process. Conclusion Metabolically engineered Escherichia coli strains were successfully developed for raspberry ketone production from fatty acids using several strategies, including optimization of bioconversion process and fine-tuning key enzyme expression. This study provides an essential reference to establish the low-cost biological manufacture of phenylpropanoids compounds. Supplementary Information The online version contains supplementary material available at 10.1186/s12934-021-01551-0.
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Affiliation(s)
- Chen Chang
- College of Forestry, Northeast Forestry University, No. 26 Hexing Road, Harbin, Heilongjiang Province, 150040, PR China.,CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, NO. 1 Beichen West Road, Chaoyang District, Beijing, 100101, PR China
| | - Bo Liu
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, NO. 1 Beichen West Road, Chaoyang District, Beijing, 100101, PR China
| | - Yihong Bao
- College of Forestry, Northeast Forestry University, No. 26 Hexing Road, Harbin, Heilongjiang Province, 150040, PR China. .,Heilongjiang Key Laboratory of Forest Food Resources Utilization, No. 26 Hexing Road, Harbin, Heilongjiang Province, 150040, PR China.
| | - Yong Tao
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, NO. 1 Beichen West Road, Chaoyang District, Beijing, 100101, PR China. .,University of Chinese Academy of Sciences, Shijingshan District, NO. 19A Yuquan Road, Beijing, 100049, PR China.
| | - Weifeng Liu
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, NO. 1 Beichen West Road, Chaoyang District, Beijing, 100101, PR China. .,University of Chinese Academy of Sciences, Shijingshan District, NO. 19A Yuquan Road, Beijing, 100049, PR China.
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Zhang J, Wu F, Yan Q, John UP, Cao M, Xu P, Zhang Z, Ma T, Zong X, Li J, Liu R, Zhang Y, Zhao Y, Kanzana G, Lv Y, Nan Z, Spangenberg G, Wang Y. The genome of Cleistogenes songorica provides a blueprint for functional dissection of dimorphic flower differentiation and drought adaptability. PLANT BIOTECHNOLOGY JOURNAL 2021; 19:532-547. [PMID: 32964579 PMCID: PMC7955882 DOI: 10.1111/pbi.13483] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 09/13/2020] [Indexed: 05/24/2023]
Abstract
Cleistogenes songorica (2n = 4x = 40) is a desert grass with a unique dimorphic flowering mechanism and an ability to survive extreme drought. Little is known about the genetics underlying drought tolerance and its reproductive adaptability. Here, we sequenced and assembled a high-quality chromosome-level C. songorica genome (contig N50 = 21.28 Mb). Complete assemblies of all telomeres, and of ten chromosomes were derived. C. songorica underwent a recent tetraploidization (~19 million years ago) and four major chromosomal rearrangements. Expanded genes were significantly enriched in fatty acid elongation, phenylpropanoid biosynthesis, starch and sucrose metabolism, and circadian rhythm pathways. By comparative transcriptomic analysis we found that conserved drought tolerance related genes were expanded. Transcription of CsMYB genes was associated with differential development of chasmogamous and cleistogamous flowers, as well as drought tolerance. Furthermore, we found that regulation modules encompassing miRNA, transcription factors and target genes are involved in dimorphic flower development, validated by overexpression of CsAP2_9 and its targeted miR172 in rice. Our findings enable further understanding of the mechanisms of drought tolerance and flowering in C. songorica, and provide new insights into the adaptability of native grass species in evolution, along with potential resources for trait improvement in agronomically important species.
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Affiliation(s)
- Jiyu Zhang
- State Key Laboratory of Grassland Agro‐ecosystemsKey Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural AffairsEngineering Research Center of Grassland Industry, Ministry of EducationCollege of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhouChina
| | - Fan Wu
- State Key Laboratory of Grassland Agro‐ecosystemsKey Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural AffairsEngineering Research Center of Grassland Industry, Ministry of EducationCollege of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhouChina
| | - Qi Yan
- State Key Laboratory of Grassland Agro‐ecosystemsKey Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural AffairsEngineering Research Center of Grassland Industry, Ministry of EducationCollege of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhouChina
| | - Ulrik P John
- Agriculture Victoria Research, Department of Jobs, Precincts and RegionsAgriBio, Centre for AgriBioscience, La Trobe UniversityVictoriaAustralia
| | - Mingshu Cao
- AgResearch Limited, Grasslands Research CentrePalmerston NorthNew Zealand
| | - Pan Xu
- State Key Laboratory of Grassland Agro‐ecosystemsKey Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural AffairsEngineering Research Center of Grassland Industry, Ministry of EducationCollege of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhouChina
| | - Zhengshe Zhang
- State Key Laboratory of Grassland Agro‐ecosystemsKey Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural AffairsEngineering Research Center of Grassland Industry, Ministry of EducationCollege of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhouChina
| | - Tiantian Ma
- State Key Laboratory of Grassland Agro‐ecosystemsKey Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural AffairsEngineering Research Center of Grassland Industry, Ministry of EducationCollege of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhouChina
| | - Xifang Zong
- State Key Laboratory of Grassland Agro‐ecosystemsKey Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural AffairsEngineering Research Center of Grassland Industry, Ministry of EducationCollege of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhouChina
| | - Jie Li
- State Key Laboratory of Grassland Agro‐ecosystemsKey Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural AffairsEngineering Research Center of Grassland Industry, Ministry of EducationCollege of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhouChina
| | - Ruijuan Liu
- Key Laboratory of Adaptation and Evolution of Plateau BiotaNorthwest Institute of Plateau BiologyChinese Academy of SciencesXiningChina
| | - Yufei Zhang
- State Key Laboratory of Grassland Agro‐ecosystemsKey Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural AffairsEngineering Research Center of Grassland Industry, Ministry of EducationCollege of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhouChina
| | - Yufeng Zhao
- State Key Laboratory of Grassland Agro‐ecosystemsKey Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural AffairsEngineering Research Center of Grassland Industry, Ministry of EducationCollege of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhouChina
| | - Gisele Kanzana
- State Key Laboratory of Grassland Agro‐ecosystemsKey Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural AffairsEngineering Research Center of Grassland Industry, Ministry of EducationCollege of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhouChina
| | - Yanyan Lv
- State Key Laboratory of Grassland Agro‐ecosystemsKey Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural AffairsEngineering Research Center of Grassland Industry, Ministry of EducationCollege of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhouChina
| | - Zhibiao Nan
- State Key Laboratory of Grassland Agro‐ecosystemsKey Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural AffairsEngineering Research Center of Grassland Industry, Ministry of EducationCollege of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhouChina
| | - German Spangenberg
- Agriculture Victoria Research, Department of Jobs, Precincts and RegionsAgriBio, Centre for AgriBioscience, La Trobe UniversityVictoriaAustralia
| | - Yanrong Wang
- State Key Laboratory of Grassland Agro‐ecosystemsKey Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural AffairsEngineering Research Center of Grassland Industry, Ministry of EducationCollege of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhouChina
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Liu Y, Gong X, Zhou Q, Liu Y, Liu Z, Han J, Dong J, Gu S. Comparative proteomic analysis reveals insights into the dynamic responses of maize (Zea mays L.) to Setosphaeria turcica infection. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2021; 304:110811. [PMID: 33568308 DOI: 10.1016/j.plantsci.2020.110811] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 12/29/2020] [Accepted: 12/30/2020] [Indexed: 06/12/2023]
Abstract
Maize (Zea mays L.) production is severely affected by northern corn leaf blight (NCLB), which is a destructive foliar disease caused by Setosphaeria turcica. In recent years, studies on the interaction between maize and S. turcica have been focused at the transcription level, with no research yet at the protein level. Here, we applied tandem mass tag labelling and liquid chromatography-tandem mass spectrometry to investigate the proteomes of maize leaves at 24 h and 72 h post-inoculation (hpi) with S. turcica. In total, 4740 proteins encoded by 4711 genes were quantified in this study. Clustering analyses provided an understanding of the dynamic reprogramming of leaves proteomes by revealing the functions of different proteins during S. turcica infection. Screening and classification of differentially expressed proteins (DEPs) revealed that numerous defense-related proteins, including defense marker proteins and proteins related to the phenylpropanoid lignin biosynthesis, benzoxazine biosynthesis and the jasmonic acid signalling pathway, participated in the defense responses of maize to S. turcica infection. Furthermore, the earlier induction of GST family proteins contributed to the resistance to S. turcica. In addition, the protein-protein interaction network of DEPs suggests that some defense-related proteins, for example, ZmGEB1, a hub node, play key roles in defense responses against S. turcica infection. Our study findings provide insight into the complex responses triggered by S. turcica at the protein level and lay the foundation for studying the interaction process between maize and S. turcica infection.
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Affiliation(s)
- Yuwei Liu
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China; College of Life Sciences, Hebei Agricultural University, Baoding, Hebei, 071001, China; Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Hebei, 071001, China
| | - Xiaodong Gong
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China; College of Life Sciences, Hebei Agricultural University, Baoding, Hebei, 071001, China; Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Hebei, 071001, China
| | - Qihui Zhou
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China; College of Life Sciences, Hebei Agricultural University, Baoding, Hebei, 071001, China; Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Hebei, 071001, China
| | - Yajie Liu
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China; College of Life Sciences, Hebei Agricultural University, Baoding, Hebei, 071001, China; Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Hebei, 071001, China
| | - Zhenpan Liu
- Economic Forsetry Research Institute of Liaoning Province, China
| | - Jianmin Han
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China; College of Life Sciences, Hebei Agricultural University, Baoding, Hebei, 071001, China; Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Hebei, 071001, China
| | - Jingao Dong
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China; College of Life Sciences, Hebei Agricultural University, Baoding, Hebei, 071001, China; College of Plant Protection, Hebei Agricultural University, Baoding, Hebei, 071001, China
| | - Shouqin Gu
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China; College of Life Sciences, Hebei Agricultural University, Baoding, Hebei, 071001, China; Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Hebei, 071001, China.
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Chen C, Zhou G, Chen J, Liu X, Lu X, Chen H, Tian Y. Integrated Metabolome and Transcriptome Analysis Unveils Novel Pathway Involved in the Formation of Yellow Peel in Cucumber. Int J Mol Sci 2021; 22:ijms22031494. [PMID: 33540857 PMCID: PMC7867363 DOI: 10.3390/ijms22031494] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/25/2021] [Accepted: 01/28/2021] [Indexed: 11/16/2022] Open
Abstract
Yellow peel will adversely affect the appearance quality of cucumber fruit, but the metabolites and the molecular mechanism of pigment accumulation in cucumber peel remain unclear. Flavonoid metabolome and transcriptome analyses were carried out on the young peel and old peel of the color mutant L19 and the near-isogenic line L14. The results showed that there were 165 differential flavonoid metabolites in the old peel between L14 and L19. The total content of representative flavonoid metabolites in the old peel of L14 was 95 times that of L19, and 35 times that of young peel of L14, respectively. This might explain the difference of pigment accumulation in yellow peel. Furthermore, transcriptome analysis showed that there were 3396 and 1115 differentially expressed genes in the yellow color difference group (Young L14 vs. Old L14 and Old L14 vs. Old L19), respectively. These differentially expressed genes were significantly enriched in the MAPK signaling pathway-plant, plant-pathogen interaction, flavonoid biosynthesis and cutin, suberine and wax biosynthesis pathways. By analyzing the correlation between differential metabolites and differentially expressed genes, six candidate genes related to the synthesis of glycitein, kaempferol and homoeriodictyol are potentially important. In addition, four key transcription factors that belong to R2R3-MYB, bHLH51 and WRKY23 might be the major drivers of transcriptional changes in the peel between L14 and L19. Then, the expression patterns of these important genes were confirmed by qRT-PCR. These results suggested that the biosynthesis pathway of homoeriodictyol was a novel way to affect the yellowing of cucumber peel. Together, the results of this study provide a research basis for the biosynthesis and regulation of flavonoids in cucumber peel and form a significant step towards identifying the molecular mechanism of cucumber peel yellowing.
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Affiliation(s)
- Chen Chen
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China; (C.C.); (X.L.)
- Hunan Vegetable Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China; (G.Z.); (J.C.); (X.L.)
| | - Geng Zhou
- Hunan Vegetable Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China; (G.Z.); (J.C.); (X.L.)
- Longping Branch, Graduate School of Hunan University, Changsha 410125, China
| | - Juan Chen
- Hunan Vegetable Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China; (G.Z.); (J.C.); (X.L.)
| | - Xiaohong Liu
- Hunan Vegetable Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China; (G.Z.); (J.C.); (X.L.)
| | - Xiangyang Lu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China; (C.C.); (X.L.)
| | - Huiming Chen
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China; (C.C.); (X.L.)
- Hunan Vegetable Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China; (G.Z.); (J.C.); (X.L.)
- Longping Branch, Graduate School of Hunan University, Changsha 410125, China
- Correspondence: (H.C.); (Y.T.); Tel.: +86-731-8463-5292 (H.C. & Y.T.)
| | - Yun Tian
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China; (C.C.); (X.L.)
- Correspondence: (H.C.); (Y.T.); Tel.: +86-731-8463-5292 (H.C. & Y.T.)
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Yang YH, Wang CJ, Li RF, Zhang ZY, Yang H, Chu CY, Li JT. Overexpression of RgPAL family genes involved in phenolic biosynthesis promotes the replanting disease development in Rehmannia glutinosa. JOURNAL OF PLANT PHYSIOLOGY 2021; 257:153339. [PMID: 33383401 DOI: 10.1016/j.jplph.2020.153339] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 11/23/2020] [Accepted: 11/24/2020] [Indexed: 06/12/2023]
Abstract
Rehmannia glutinosa production is affected by the replanting disease, which involves autotoxic harm mediated by specific endogenous allelochemicals in root exudates. Many phenolics that act as allelochemical agents are mostly phenylpropanoid products of secondary metabolism in plants. Phenylalanine ammonia-lyase (PAL) is the first enzyme that catalyses the deamination of l-phenylalanine for entrance into the phenylpropanoid pathway. PAL family genes have been isolated and functionally characterized in many plant species. However, PAL family genes involved in phenolic biosynthesis remain largely uncharacterized in R. glutinosa. Here, we identified and characterized four PAL family genes (RgPAL2 to RgPAL5) in the species whose sequences exhibited highly conserved domains of PALs according to in silico analysis, implying their potential function in phenolic biosynthesis. Overexpression of RgPALs in R. glutinosa enhanced phenolic production, verifying that RgPAL family genes participate in phenolic biosynthesis pathways. Moreover, we found that the release of several allelopathic phenolics from the roots of RgPAL-overexpressing transgenic R. glutinosa increased, implying that the RgPALs positively promote their release. Importantly, under continuous monoculture stress, we found that the RgPAL transgenic plants exhibited more significant autotoxic harm than did non-transgenic (WT) plants by activating the phenolics/phenylpropanoid pathway, indicating that RgPAL family genes function as positive regulators of the replanting disease development in R. glutinosa. This study revealed that RgPAL family genes are involved in the biosynthesis and release of several phenolics and positively control the replanting disease development in R. glutinosa, laying a foundation for further clarification of the molecular mechanisms underlying the disease formation.
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Affiliation(s)
- Yan Hui Yang
- College of Bioengineering, Henan University of Technology, Lianhua Street 100, Zhengzhou High-technology Zero, Henan Province, 450001, China.
| | - Chao Jie Wang
- College of Bioengineering, Henan University of Technology, Lianhua Street 100, Zhengzhou High-technology Zero, Henan Province, 450001, China.
| | - Rui Fang Li
- College of Bioengineering, Henan University of Technology, Lianhua Street 100, Zhengzhou High-technology Zero, Henan Province, 450001, China.
| | - Zhong Yi Zhang
- College of Crop Sciences, Fujian Agriculture and Forestry University, Jinshan Road, Cangshan District, Fuzhou, 350002, China.
| | - Heng Yang
- College of Bioengineering, Henan University of Technology, Lianhua Street 100, Zhengzhou High-technology Zero, Henan Province, 450001, China.
| | - Chen Yang Chu
- College of Bioengineering, Henan University of Technology, Lianhua Street 100, Zhengzhou High-technology Zero, Henan Province, 450001, China.
| | - Jia Tian Li
- College of Bioengineering, Henan University of Technology, Lianhua Street 100, Zhengzhou High-technology Zero, Henan Province, 450001, China.
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Lin S, Singh RK, Navarre DA. R2R3-MYB transcription factors, StmiR858 and sucrose mediate potato flavonol biosynthesis. HORTICULTURE RESEARCH 2021; 8:25. [PMID: 33518700 PMCID: PMC7847999 DOI: 10.1038/s41438-021-00463-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 11/20/2020] [Accepted: 11/23/2020] [Indexed: 05/06/2023]
Abstract
Flavonols and other phenylpropanoids protect plants from biotic and abiotic stress and are dietarily desirable because of their health-promoting properties. The ability to develop new potatoes (Solanum tuberosum) with optimal types and amounts of phenylpropanoids is limited by lack of knowledge about the regulatory mechanisms. Exogenous sucrose increased flavonols, whereas overexpression of the MYB StAN1 induced sucrolytic gene expression. Heterologous StAN1 protein bound promoter fragments from sucrolytic genes (SUSY1 and INV1). Two additional MYBs and one microRNA were identified that regulated potato flavonols. Overexpression analysis showed MYB12A and C increased amounts of flavonols and other phenylpropanoids. Endogenous flavonol amounts in light-exposed organs were much higher those in the dark. Expression levels of StMYB12A and C were high in flowers but low in tubers. Transient overexpression of miR858 altered potato flavonol metabolism. Endogenous StmiR858 expression was much lower in flowers than leaves and correlated with flavonol amounts in these organs. Collectively, these findings support the hypothesis that sucrose, MYBs, and miRNA control potato phenylpropanoid metabolism in a finely tuned manner that includes a feedback loop between sucrose and StAN1. These findings will aid in the development of potatoes with phenylpropanoid profiles optimized for crop performance and human health.
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Affiliation(s)
- Sen Lin
- Irrigated Agriculture Research and Extension Center, Washington State University, Prosser, WA, USA
| | - Rajesh K Singh
- Irrigated Agriculture Research and Extension Center, Washington State University, Prosser, WA, USA
- Department of Biotechnology, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, 176061, India
| | - Duroy A Navarre
- Irrigated Agriculture Research and Extension Center, Washington State University, Prosser, WA, USA.
- USDA-Agricultural Research Service, Prosser, WA, USA.
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134
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Liu X, Li X, Wen X, Zhang Y, Ding Y, Zhang Y, Gao B, Zhang D. PacBio full-length transcriptome of wild apple (Malus sieversii) provides insights into canker disease dynamic response. BMC Genomics 2021; 22:52. [PMID: 33446096 PMCID: PMC7809858 DOI: 10.1186/s12864-021-07366-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 01/01/2021] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Valsa canker is a serious disease in the stem of Malus sieversii, caused by Valsa mali. However, little is known about the global response mechanism in M. sieversii to V. mali infection. RESULTS Phytohormone jasmonic acid (JA) and salicylic acid (SA) profiles and transcriptome analysis were used to elaborate on the dynamic response mechanism. We determined that the JA was initially produced to respond to the necrotrophic pathogen V. mali infection at the early response stage, then get synergistically transduced with SA to respond at the late response stage. Furthermore, we adopted Pacific Biosciences (PacBio) full-length sequencing to identify differentially expressed transcripts (DETs) during the canker response stage. We obtained 52,538 full-length transcripts, of which 8139 were DETs. Total 1336 lncRNAs, 23,737 alternative polyadenylation (APA) sites and 3780 putative transcription factors (TFs) were identified. Additionally, functional annotation analysis of DETs indicated that the wild apple response to the infection of V. mali involves plant-pathogen interaction, plant hormone signal transduction, flavonoid biosynthesis, and phenylpropanoid biosynthesis. The co-expression network of the differentially expressed TFs revealed 264 candidate TF transcripts. Among these candidates, the WRKY family was the most abundant. The MsWRKY7 and MsWRKY33 were highly correlated at the early response stage, and MsWRKY6, MsWRKY7, MsWRKY19, MsWRKY33, MsWRKY40, MsWRKY45, MsWRKY51, MsWRKY61, MsWRKY75 were highly correlated at the late stage. CONCLUSIONS The full-length transcriptomic analysis revealed a series of immune responsive events in M. sieversii in response to V. mali infection. The phytohormone signal pathway regulatory played an important role in the response stage. Additionally, the enriched disease resistance pathways and differentially expressed TFs dynamics collectively contributed to the immune response. This study provides valuable insights into a dynamic response in M. sieversii upon the necrotrophic pathogen V. mali infection, facilitates understanding of response mechanisms to canker disease for apple, and provides supports in the identification of potential resistance genes in M. sieversii.
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Affiliation(s)
- Xiaojie Liu
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Xiaoshuang Li
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China.,Turpan Eremophytes Botanical Garden, Chinese Academy of Sciences, Turpan, China
| | - Xuejing Wen
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China.,Turpan Eremophytes Botanical Garden, Chinese Academy of Sciences, Turpan, China
| | - Yan Zhang
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Yu Ding
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China.,University of Chinese Academy of Sciences, Beijing, China
| | | | - Bei Gao
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China.,Turpan Eremophytes Botanical Garden, Chinese Academy of Sciences, Turpan, China
| | - Daoyuan Zhang
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China. .,Turpan Eremophytes Botanical Garden, Chinese Academy of Sciences, Turpan, China.
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135
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Wang Z, Ma H, Zhang M, Wang Z, Tian Y, Li W, Wang Y. Transcriptional response of Asarum heterotropoides Fr. Schmidt var. mandshuricum (Maxim.) Kitag. leaves grown under full and partial daylight conditions. BMC Genomics 2021; 22:16. [PMID: 33407099 PMCID: PMC7788892 DOI: 10.1186/s12864-020-07266-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 11/23/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Asarum heterotropides Fr. Schmidt var. mandshuricum (Maxim.) Kitag. is an important medicinal and industrial plant, which is used in the treatment of various diseases. The main bioactive ingredient is the volatile oil having more than 82 identified components of which methyleugenol, safrole, myristicin, and toluene account for about 70% of the total volume. As a sciophyte plant, the amount of light it absorbs through leaves is an important factor for growth and metabolism. RESULTS We grew Asarum plants under full, 50, 28, and 12% sunlight conditions to investigate the effect of different light irradiances on the four major volatile oil components. We employed de novo transcriptome sequencing to understand the transcriptional behavior of Asarum leaves regarding the biosynthetic pathways of the four volatile oil components, photosynthesis and biomass accumulation, and hormone signaling. Our results demonstrated that the increasing light conditions promoted higher percent of the four components. Under full sunlight conditions, cinnamyl alcohol dehydrogenase and cytochrome p450719As were upregulated and led the increased methyleugenol, safrole, and myristicin. The transcriptomic data also showed that Asarum leaves, under full sunlight conditions, adjust their photosynthesis-antenna proteins as a photoprotective response with the help of carotenoids. Plant hormone-signaling related genes were also differentially expressed between full sunlight and low light conditions. CONCLUSIONS High light induces accumulation of major bioactive ingredients A. heterotropides volatile oil and this is ascribed to upregulation of key genes such as cinnamyl alcohol dehydrogenase and cytochrome p450719As. The transcriptome data presented here lays the foundation of further understanding of light responses in sciophytes and provides guidance for increasing bioactive molecules in Asarum.
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Affiliation(s)
- Zhiqing Wang
- Laboratory of Cultivation and Breeding of Medicinal Plants, National Administration of Traditional Chinese Medicine, College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, 130118, Jilin, China.
| | - Haiqin Ma
- Institute of Special Wild Economic Animals and Plants, Chinese Academy of Agriculture Sciences, Changchun, 130112, Jilin, China
| | - Min Zhang
- Laboratory of Cultivation and Breeding of Medicinal Plants, National Administration of Traditional Chinese Medicine, College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Ziqing Wang
- Institute of Special Wild Economic Animals and Plants, Chinese Academy of Agriculture Sciences, Changchun, 130112, Jilin, China
| | - Yixin Tian
- Laboratory of Cultivation and Breeding of Medicinal Plants, National Administration of Traditional Chinese Medicine, College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Wei Li
- State & Local Joint Engineering Research Center of Ginseng Breeding and Application, College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Yingping Wang
- State & Local Joint Engineering Research Center of Ginseng Breeding and Application, College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, 130118, Jilin, China
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136
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Valletta A, Iozia LM, Leonelli F. Impact of Environmental Factors on Stilbene Biosynthesis. PLANTS (BASEL, SWITZERLAND) 2021; 10:E90. [PMID: 33406721 PMCID: PMC7823792 DOI: 10.3390/plants10010090] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 12/24/2020] [Accepted: 12/29/2020] [Indexed: 01/01/2023]
Abstract
Stilbenes are a small family of polyphenolic secondary metabolites that can be found in several distantly related plant species. These compounds act as phytoalexins, playing a crucial role in plant defense against phytopathogens, as well as being involved in the adaptation of plants to abiotic environmental factors. Among stilbenes, trans-resveratrol is certainly the most popular and extensively studied for its health properties. In recent years, an increasing number of stilbene compounds were subjected to investigations concerning their bioactivity. This review presents the most updated knowledge of the stilbene biosynthetic pathway, also focusing on the role of several environmental factors in eliciting stilbenes biosynthesis. The effects of ultraviolet radiation, visible light, ultrasonication, mechanical stress, salt stress, drought, temperature, ozone, and biotic stress are reviewed in the context of enhancing stilbene biosynthesis, both in planta and in plant cell and organ cultures. This knowledge may shed some light on stilbene biological roles and represents a useful tool to increase the accumulation of these valuable compounds.
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Affiliation(s)
- Alessio Valletta
- Department of Environmental Biology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy;
| | - Lorenzo Maria Iozia
- Department of Environmental Biology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy;
| | - Francesca Leonelli
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy;
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Concise synthesis of quercetagetin (3,3ʹ,4ʹ,5,6,7-hexahydroxyflavone) with antioxidant and antibacterial activities. RESULTS IN CHEMISTRY 2021. [DOI: 10.1016/j.rechem.2021.100255] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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138
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Zhou Z, Li Q, Xiao L, Wang Y, Feng J, Bu Q, Xiao Y, Hao K, Guo M, Chen W, Zhang L. Multiplexed CRISPR/Cas9-Mediated Knockout of Laccase Genes in Salvia miltiorrhiza Revealed Their Roles in Growth, Development, and Metabolism. FRONTIERS IN PLANT SCIENCE 2021; 12:647768. [PMID: 33815454 PMCID: PMC8014014 DOI: 10.3389/fpls.2021.647768] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 02/22/2021] [Indexed: 05/17/2023]
Abstract
Laccases are multicopper-containing glycoproteins related to monolignol oxidation and polymerization. These properties indicate that laccases may be involved in the formation of important medicinal phenolic acid compounds in Salvia miltiorrhiza such as salvianolic acid B (SAB), which is used for cardiovascular disease treatment. To date, 29 laccases have been found in S. miltiorrhiza (SmLACs), and some of which (SmLAC7 and SmLAC20) have been reported to influence the synthesis of phenolic acids. Because of the functional redundancy of laccase genes, their roles in S. miltiorrhiza are poorly understood. In this study, the CRISPR/Cas9 system was used for targeting conserved domains to knockout multiple genes of laccase family in S. miltiorrhiza. The expressions of target laccase genes as well as the phenolic acid biosynthesis key genes decrease dramatically in editing lines. Additionally, the growth and development of hairy roots was significantly retarded in the gene-edited lines. The cross-sections examination of laccase mutant hairy roots showed that the root development was abnormal and the xylem cells in the edited lines became larger and looser than those in the wild type. Additionally, the accumulation of RA as well as SAB was decreased, and the lignin content was nearly undetectable. It suggested that SmLACs play key roles in development and lignin formation in the root of S. miltiorrhiza and they are necessary for phenolic acids biosynthesis.
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Affiliation(s)
- Zheng Zhou
- School of Pharmacy, Second Military Medical University, Shanghai, China
| | - Qing Li
- Department of Pharmacy, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Liang Xiao
- School of Pharmacy, Second Military Medical University, Shanghai, China
| | - Yun Wang
- Biomedical Innovation R&D Center, School of Medicine, Shanghai University, Shanghai, China
| | - Jingxian Feng
- Research and Development Center of Chinese Medicine Resources and Biotechnology, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qitao Bu
- School of Pharmacy, Second Military Medical University, Shanghai, China
| | - Ying Xiao
- Research and Development Center of Chinese Medicine Resources and Biotechnology, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Kai Hao
- School of Pharmacy, Second Military Medical University, Shanghai, China
| | - Meili Guo
- School of Pharmacy, Second Military Medical University, Shanghai, China
- *Correspondence: Meili Guo,
| | - Wansheng Chen
- Department of Pharmacy, Changzheng Hospital, Second Military Medical University, Shanghai, China
- Research and Development Center of Chinese Medicine Resources and Biotechnology, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Wansheng Chen,
| | - Lei Zhang
- School of Pharmacy, Second Military Medical University, Shanghai, China
- Biomedical Innovation R&D Center, School of Medicine, Shanghai University, Shanghai, China
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, China
- Lei Zhang,
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Jeandet P, Vannozzi A, Sobarzo-Sánchez E, Uddin MS, Bru R, Martínez-Márquez A, Clément C, Cordelier S, Manayi A, Nabavi SF, Rasekhian M, El-Saber Batiha G, Khan H, Morkunas I, Belwal T, Jiang J, Koffas M, Nabavi SM. Phytostilbenes as agrochemicals: biosynthesis, bioactivity, metabolic engineering and biotechnology. Nat Prod Rep 2021; 38:1282-1329. [PMID: 33351014 DOI: 10.1039/d0np00030b] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Covering: 1976 to 2020. Although constituting a limited chemical family, phytostilbenes represent an emblematic group of molecules among natural compounds. Ever since their discovery as antifungal compounds in plants and their ascribed role in human health and disease, phytostilbenes have never ceased to arouse interest for researchers, leading to a huge development of the literature in this field. Owing to this, the number of references to this class of compounds has reached the tens of thousands. The objective of this article is thus to offer an overview of the different aspects of these compounds through a large bibliography analysis of more than 500 articles. All the aspects regarding phytostilbenes will be covered including their chemistry and biochemistry, regulation of their biosynthesis, biological activities in plants, molecular engineering of stilbene pathways in plants and microbes as well as their biotechnological production by plant cell systems.
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Affiliation(s)
- Philippe Jeandet
- Research Unit "Induced Resistance and Plant Bioprotection", EA 4707, SFR Condorcet FR CNRS 3417, Faculty of Sciences, University of Reims Champagne-Ardenne, PO Box 1039, 51687 Reims Cedex 2, France.
| | - Alessandro Vannozzi
- Department of Agronomy, Food, Natural Resources, Animals, and Environment (DAFNAE), University of Padova, 35020 Legnaro, PD, Italy
| | - Eduardo Sobarzo-Sánchez
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Santiago de Compostela, Campus Vida, 15782 Santiago de Compostela, Spain and Instituto de Investigación e Innovación en Salud, Facultad de Ciencias de la Salud, Universidad Central de Chile, Chile
| | - Md Sahab Uddin
- Department of Pharmacy, Southeast University, Dhaka, Bangladesh and Neuroscience Research Network, Dhaka, Bangladesh
| | - Roque Bru
- Plant Proteomics and Functional Genomics Group, Department of Agrochemistry and Biochemistry, Faculty of Science, University of Alicante, Alicante, Spain
| | - Ascension Martínez-Márquez
- Plant Proteomics and Functional Genomics Group, Department of Agrochemistry and Biochemistry, Faculty of Science, University of Alicante, Alicante, Spain
| | - Christophe Clément
- Research Unit "Induced Resistance and Plant Bioprotection", EA 4707, SFR Condorcet FR CNRS 3417, Faculty of Sciences, University of Reims Champagne-Ardenne, PO Box 1039, 51687 Reims Cedex 2, France.
| | - Sylvain Cordelier
- Research Unit "Induced Resistance and Plant Bioprotection", EA 4707, SFR Condorcet FR CNRS 3417, Faculty of Sciences, University of Reims Champagne-Ardenne, PO Box 1039, 51687 Reims Cedex 2, France.
| | - Azadeh Manayi
- Medicinal Plants Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, 1417614411 Tehran, Iran
| | - Seyed Fazel Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran 14359-16471, Iran
| | - Mahsa Rasekhian
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, 22511, AlBeheira, Egypt
| | - Haroon Khan
- Department of Pharmacy, Faculty of Chemical and Life Sciences, Abdul Wali Khan University Mardan, 23200, Pakistan
| | - Iwona Morkunas
- Department of Plant Physiology, Poznań University of Life Sciences, Wołyńska 35, 60-637 Poznań, Poland
| | - Tarun Belwal
- Zhejiang University, College of Biosystems Engineering and Food Science, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Zhejiang Key Laboratory for Agri-Food Processing, Hangzhou 310058, The People's Republic of China
| | - Jingjie Jiang
- Dorothy and Fred Chau '71 Constellation Professor, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Room 4005D, 110 8th Street, Troy, NY 12180, USA
| | - Mattheos Koffas
- Dorothy and Fred Chau '71 Constellation Professor, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Room 4005D, 110 8th Street, Troy, NY 12180, USA
| | - Seyed Mohammad Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran 14359-16471, Iran
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140
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Liang C, Wan T, Wu R, Zhao M, Zhao Y, Cai Y. Resistance analysis of cherry rootstock 'CDR-1' (Prunus mahaleb) to crown gall disease. BMC PLANT BIOLOGY 2020; 20:516. [PMID: 33183241 PMCID: PMC7661173 DOI: 10.1186/s12870-020-02673-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 09/23/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Crown gall disease, caused by the pathogenic bacterium Agrobacterium tumefaciens, is responsible for extensive economic losses in orchards. Cherry rootstock 'CDR-1' (Prunus mahaleb) shows high resistance but the mechanism remains unclear. Here, we examined the morphology of pathogen-infected root neck surface, determined the activity of 10 defense-related enzymes and the content of salicylic acid (SA) and jasmonic acid (JA), and also applied transcriptome analysis, transient expression and transgenic verification to explore the crown gall resistance genes in 'CDR-1' plants. RESULTS In our study, peroxidase increased in the first 10 days, while phenylalanine ammonialyase and lipoxygenase increased in the first 15 days post-infection. Four key enzymes in the AsA-GSH cycle also responded, to a certain extent; although JA content increased significantly after the treatment, the SA content did not. In a follow-up transcriptome analysis, the differentially expressed genes Pm4CL2, PmCYP450, PmHCT1, PmHCT2, and PmCAD were up-regulated. Based on the above results, we focused on the lignin biosynthetic pathway, and further measured lignin content, and found it increased significantly. The Pm4CL2 gene was used to conduct transient expression and transgenic experiments to verify its function in crown gall disease resistance. It showed the relative expression of the treatment group was almost 14-fold that of the control group at 12 h post-treatment. After the infection treatment, clear signs of resistance were found in the transgenic lines; this indicated that under the higher expression level and earlier activation of Pm4CL2, plant resistance was enhanced. CONCLUSIONS The crown gall resistance of 'CDR-1' is likely related to the lignin biosynthetic pathway, in which Pm4CL2 functions crucially during the plant defense response to the pathogen A. tumefaciens. The results thus offer novel insights into the defense responses and resistance mechanism of cherry rootstock 'CDR-1' against crown gall disease.
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Affiliation(s)
- Chenglin Liang
- College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi Province China
| | - Tian Wan
- College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi Province China
| | - Rendun Wu
- College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi Province China
| | - Mei Zhao
- College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi Province China
| | - Yue Zhao
- College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi Province China
| | - Yuliang Cai
- College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi Province China
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Kiani AK, Dhuli K, Anpilogov K, Bressan S, Dautaj A, Dundar M, Beccari T, Ergoren MC, Bertelli M. Natural compounds as inhibitors of SARS-CoV-2 endocytosis: A promising approach against COVID-19. ACTA BIO-MEDICA : ATENEI PARMENSIS 2020; 91:e2020008. [PMID: 33170174 PMCID: PMC8023130 DOI: 10.23750/abm.v91i13-s.10520] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 09/17/2020] [Indexed: 12/22/2022]
Abstract
BACKGROUND AND AIM The recent COVID-19 pandemic caused by SARS-CoV-2 affected more than six million people and caused thousands of deaths. The lack of effective drugs or vaccines against SARS-CoV-2 further worsened the situation. This review is focused on the identification of molecules that may inhibit viral entry into host cells by endocytosis. METHODS We performed the literature search for these natural compounds in the articles indexed in PubMed. RESULTS Natural products against viral infections have been gaining importance in recent years. Specific natural compounds like phytosterols, polyphenols, flavonoids, citrus, galangal, curcuma and hydroxytyrosol are being analyzed to understand whether they could inhibit SARS-CoV-2. CONCLUSIONS We reviewed natural compounds with potential antiviral activity against SARS-CoV-2 that could be used as a treatment for COVID-19.
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Affiliation(s)
| | | | | | | | | | - Munis Dundar
- Department of Medical Genetics, Erciyes University, Kayseri, Turkey.
| | - Tommaso Beccari
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy.
| | - Mahmut C Ergoren
- Department of Medical Biology, Faculty of Medicine, Near East University, Nicosia, Cyprus; DESAM Institute, Near East University, Nicosia, Cyprus.
| | - Matteo Bertelli
- MAGI EUREGIO, Bolzano, Italy; EBTNA-LAB, Rovereto (TN), Italy; MAGI'S LAB, Rovereto (TN), Italy.
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142
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Cosmetic Potential of Cajanus cajan (L.) Millsp: Botanical Data, Traditional Uses, Phytochemistry and Biological Activities. COSMETICS 2020. [DOI: 10.3390/cosmetics7040084] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Cajanus cajan (aka pigeon pea) is a terrestrial medicinal plant native to Asian and African countries before being introduced to the American continent. This protein-rich legume species, belonging to the Fabaceae family, has been traditionally used to cure various ailments in many traditional medicines. Recent works have highlighted it as a rich source of a wide array of flavonoids and other phenolic compounds. The major biological activities that are currently reported on are mainly focused on antioxidant and anti-inflammatory activities which are relevant for the cosmetic field. For example, hydroalcoholic extract from C. cajan has been highlighted as a particularly effective antioxidant in various scavenging assays for both reactive oxygen or nitrogen species. One of its constituents, cyanidin-3-monoglucoside, has been reported to suppress inflammatory cytokine production (e.g., TNF-α, IL-1β, and IL-6 in murine RAW264.7 macrophages). The present review provides an overview on the flavonoids and phenolics from C. cajan as well as their biological activities that can be applied for cosmetic applications. In addition, the botanical data including taxonomic description, flowering season, distribution, synonyms and traditional uses are illustrated, so as to provide an overview of pigeon pea’s cosmetic/cosmeceutical potentials.
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143
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Qiu W, Su W, Cai Z, Dong L, Li C, Xin M, Fang W, Liu Y, Wang X, Huang Z, Ren H, Wu Z. Combined Analysis of Transcriptome and Metabolome Reveals the Potential Mechanism of Coloration and Fruit Quality in Yellow and Purple Passiflora edulis Sims. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:12096-12106. [PMID: 32936632 DOI: 10.1021/acs.jafc.0c03619] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Passion fruit (Passiflora edulis Sims) can be divided into yellow and purple varieties. However, information about coloration and fruit quality between the two varieties is limited. To reveal the underlying mechanism of color formation in this fruit, a combined analysis of the metabolome and transcriptome was conducted in this study. The results showed that most of the evaluated flavonols, anthocyanins, and flavanols were significantly upregulated in purple fruit compared to their levels in yellow fruit. Flavonoid and flavonoid carbonoside accumulation was markedly higher in yellow fruit than in purple fruit. The accumulation of organic acids, phenolic acids, lipids, sugars, and lignans was significantly different in the yellow and purple varieties. These results were consistent with the results from the RNA-Seq profile. This study will enable us to identify genes for targeted genetic engineering to improve the nutritional and market value of passion fruit. In addition, the peel and pulp of passion fruit contained certain health-promoting compounds, highlighting the potential application of passion fruit as a functional food and providing direction for future breeding programs and production.
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Affiliation(s)
- Wenwu Qiu
- Horticulture Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi 530007, China
| | - Weiqiang Su
- Horticulture Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi 530007, China
| | - Zhaoyan Cai
- Horticulture Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi 530007, China
| | - Long Dong
- Horticulture Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi 530007, China
| | - Changbao Li
- Agro-Food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi 530007, China
| | - Ming Xin
- Agro-Food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi 530007, China
| | - Weikuan Fang
- Horticulture Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi 530007, China
| | - Yeqiang Liu
- Horticulture Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi 530007, China
| | - Xiaomei Wang
- Horticulture Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi 530007, China
| | - Zhangbao Huang
- Horticulture Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi 530007, China
| | - Hui Ren
- Horticulture Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi 530007, China
| | - Zhijiang Wu
- Horticulture Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi 530007, China
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144
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Chrzanowski G. Saccharomyces Cerevisiae-An Interesting Producer of Bioactive Plant Polyphenolic Metabolites. Int J Mol Sci 2020; 21:ijms21197343. [PMID: 33027901 PMCID: PMC7582661 DOI: 10.3390/ijms21197343] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/28/2020] [Accepted: 09/29/2020] [Indexed: 12/20/2022] Open
Abstract
Secondary phenolic metabolites are defined as valuable natural products synthesized by different organisms that are not essential for growth and development. These compounds play an essential role in plant defense mechanisms and an important role in the pharmaceutical, cosmetics, food, and agricultural industries. Despite the vast chemical diversity of natural compounds, their content in plants is very low, and, as a consequence, this eliminates the possibility of the production of these interesting secondary metabolites from plants. Therefore, microorganisms are widely used as cell factories by industrial biotechnology, in the production of different non-native compounds. Among microorganisms commonly used in biotechnological applications, yeast are a prominent host for the diverse secondary metabolite biosynthetic pathways. Saccharomyces cerevisiae is often regarded as a better host organism for the heterologous production of phenolic compounds, particularly if the expression of different plant genes is necessary.
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Affiliation(s)
- Grzegorz Chrzanowski
- Department of Biotechnology, Institute of Biology and Biotechnology, University of Rzeszow, 35-310 Rzeszow, Poland
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145
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The Effect of Light Intensity on the Expression of Leucoanthocyanidin Reductase in Grapevine Calluses and Analysis of Its Promoter Activity. Genes (Basel) 2020; 11:genes11101156. [PMID: 33007888 PMCID: PMC7600843 DOI: 10.3390/genes11101156] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 09/27/2020] [Accepted: 09/29/2020] [Indexed: 11/17/2022] Open
Abstract
To investigate the effect of light intensity on flavonoid biosynthesis, grapevine calluses were subjected to high light (HL, 250 μmol m−2 s−1) and dark (0 μmol m−2 s−1) in comparison to 125 μmol m−2 s−1 under controlled conditions (NL). The alteration of flavonoid profiles was determined and was integrated with RNA sequencing (RNA-seq)-based transcriptional changes of the flavonoid pathway genes. Results revealed that dark conditions inhibited flavonoid biosynthesis. Increasing light intensity affected flavonoids differently—the concentrations of flavonols and anthocyanins as well as the expressions of corresponding genes were less affected, whereas flavan-3-ol concentrations were predominantly increased, which caused enhanced trans-flavan-3-ol concentrations. Moreover, genes encoding leucoanthocyanidin reductase (LAR) exhibited different response patterns to light intensity changes—VviLAR1 expression increased with an increased light intensity, whereas VviLAR2 expression was insensitive. We further confirmed that the known transcription factors (TFs) involved in regulating flavan-3-ol biosynthesis utilized VviLAR1 as a target gene in grapevine calluses. In addition, VviLAR1 promoter activity was more sensitive to light intensity changes than that of VviLAR2 as determined using a transgenic Arabidopsis leaf system. These results suggested that light intensity had the most prominent effect on trans-flavan-3-ols in grapevine calluses and demonstrated that the two LAR genes had different response patterns to light intensity changes.
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146
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Liu H, Wang J, Sun H, Han X, Peng Y, Liu J, Liu K, Ding Y, Wang C, Du B. Transcriptome Profiles Reveal the Growth-Promoting Mechanisms of Paenibacillus polymyxa YC0136 on Tobacco ( Nicotiana tabacum L.). Front Microbiol 2020; 11:584174. [PMID: 33101258 PMCID: PMC7546199 DOI: 10.3389/fmicb.2020.584174] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 09/07/2020] [Indexed: 11/13/2022] Open
Abstract
Paenibacillus polymyxa is an important member of the plant growth-promoting rhizobacteria. P. polymyxa YC0136 inoculation had beneficial effect on growth promotion and biological control of tobacco (Nicotiana tabacum L.) under field conditions. This study aimed to reveal the growth-promoting mechanisms of strain YC0136. In growth-promotion assays, tobacco plant height was increased by 8.42% and 8.25% at 60 and 90 days, respectively, after inoculation with strain YC0136. Strain YC0136 also promoted the accumulation of tobacco biomass in varying degrees. Following inoculation with strain YC0136, 3,525 and 4,368 tobacco genes were up-regulated and down-regulated, respectively. Strain YC0136 induced the expression of plant hormone-related genes in tobacco, including auxin, cytokinin, and gibberellin, as well as transcription factors related to stress resistance such as WRKY and MYB. In addition, strain YC0136 induced the up-regulation of genes in the phenylpropanoid biosynthesis pathway by 1.51-4.59 times. Interaction with tobacco also induced gene expression changes in strain YC0136, with 286 and 223 genes up-regulated and down-regulated, respectively. Tobacco interaction induced up-regulation of the ilvB gene related to auxin biosynthesis in strain YC0136 by 1.72 times and induced expression of some nutrient transport genes. This study contributes to our understanding of the growth-promoting mechanisms of strain YC0136 on tobacco and provides a theoretical basis for the application of P. polymyxa YC0136 as a biological fertilizer.
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Affiliation(s)
- Hu Liu
- College of Life Sciences, Shandong Engineering Research Center of Plant-Microbial Restoration for Saline-Alkali Land, Shandong Key Laboratory of Agricultural Microbiology, National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Shandong Agricultural University, Tai'an, China
| | - Jun Wang
- College of Life Sciences, Shandong Engineering Research Center of Plant-Microbial Restoration for Saline-Alkali Land, Shandong Key Laboratory of Agricultural Microbiology, National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Shandong Agricultural University, Tai'an, China
| | - Huimin Sun
- College of Life Sciences, Shandong Engineering Research Center of Plant-Microbial Restoration for Saline-Alkali Land, Shandong Key Laboratory of Agricultural Microbiology, National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Shandong Agricultural University, Tai'an, China
| | - Xiaobin Han
- Zunyi Tobacco Monopoly Administration of Guizhou, Zunyi, China
| | - Yulong Peng
- Zunyi Tobacco Monopoly Administration of Guizhou, Zunyi, China
| | - Jing Liu
- Zunyi Tobacco Monopoly Administration of Guizhou, Zunyi, China
| | - Kai Liu
- College of Life Sciences, Shandong Engineering Research Center of Plant-Microbial Restoration for Saline-Alkali Land, Shandong Key Laboratory of Agricultural Microbiology, National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Shandong Agricultural University, Tai'an, China
| | - Yanqin Ding
- College of Life Sciences, Shandong Engineering Research Center of Plant-Microbial Restoration for Saline-Alkali Land, Shandong Key Laboratory of Agricultural Microbiology, National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Shandong Agricultural University, Tai'an, China
| | - Chengqiang Wang
- College of Life Sciences, Shandong Engineering Research Center of Plant-Microbial Restoration for Saline-Alkali Land, Shandong Key Laboratory of Agricultural Microbiology, National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Shandong Agricultural University, Tai'an, China
| | - Binghai Du
- College of Life Sciences, Shandong Engineering Research Center of Plant-Microbial Restoration for Saline-Alkali Land, Shandong Key Laboratory of Agricultural Microbiology, National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Shandong Agricultural University, Tai'an, China
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147
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Russo M, Moccia S, Spagnuolo C, Tedesco I, Russo GL. Roles of flavonoids against coronavirus infection. Chem Biol Interact 2020; 328:109211. [PMID: 32735799 PMCID: PMC7385538 DOI: 10.1016/j.cbi.2020.109211] [Citation(s) in RCA: 189] [Impact Index Per Article: 47.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/13/2020] [Accepted: 07/23/2020] [Indexed: 01/18/2023]
Abstract
In terms of public health, the 21st century has been characterized by coronavirus pandemics: in 2002-03 the virus SARS-CoV caused SARS; in 2012 MERS-CoV emerged and in 2019 a new human betacoronavirus strain, called SARS-CoV-2, caused the unprecedented COVID-19 outbreak. During the course of the current epidemic, medical challenges to save lives and scientific research aimed to reveal the genetic evolution and the biochemistry of the vital cycle of the new pathogen could lead to new preventive and therapeutic strategies against SARS-CoV-2. Up to now, there is no cure for COVID-19 and waiting for an efficacious vaccine, the development of "savage" protocols, based on "old" anti-inflammatory and anti-viral drugs represents a valid and alternative therapeutic approach. As an alternative or additional therapeutic/preventive option, different in silico and in vitro studies demonstrated that small natural molecules, belonging to polyphenol family, can interfere with various stages of coronavirus entry and replication cycle. Here, we reviewed the capacity of well-known (e.g. quercetin, baicalin, luteolin, hesperetin, gallocatechin gallate, epigallocatechin gallate) and uncommon (e.g. scutellarein, amentoflavone, papyriflavonol A) flavonoids, secondary metabolites widely present in plant tissues with antioxidant and anti-microbial functions, to inhibit key proteins involved in coronavirus infective cycle, such as PLpro, 3CLpro, NTPase/helicase. Due to their pleiotropic activities and lack of systemic toxicity, flavonoids and their derivative may represent target compounds to be tested in future clinical trials to enrich the drug arsenal against coronavirus infections.
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Affiliation(s)
| | | | | | | | - Gian Luigi Russo
- National Research Council, Institute of Food Sciences, 83100, Avellino, Italy.
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148
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Dong W, Song Y. The Significance of Flavonoids in the Process of Biological Nitrogen Fixation. Int J Mol Sci 2020; 21:E5926. [PMID: 32824698 PMCID: PMC7460597 DOI: 10.3390/ijms21165926] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 08/12/2020] [Accepted: 08/14/2020] [Indexed: 11/16/2022] Open
Abstract
Nitrogen is essential for the growth of plants. The ability of some plant species to obtain all or part of their requirement for nitrogen by interacting with microbial symbionts has conferred a major competitive advantage over those plants unable to do so. The function of certain flavonoids (a group of secondary metabolites produced by the plant phenylpropanoid pathway) within the process of biological nitrogen fixation carried out by Rhizobium spp. has been thoroughly researched. However, their significance to biological nitrogen fixation carried out during the actinorhizal and arbuscular mycorrhiza-Rhizobium-legume interaction remains unclear. This review catalogs and contextualizes the role of flavonoids in the three major types of root endosymbiosis responsible for biological nitrogen fixation. The importance of gaining an understanding of the molecular basis of endosymbiosis signaling, as well as the potential of and challenges facing modifying flavonoids either quantitatively and/or qualitatively are discussed, along with proposed strategies for both optimizing the process of nodulation and widening the plant species base, which can support nodulation.
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Affiliation(s)
| | - Yuguang Song
- School of Life Science, Qufu Normal University, Qufu 273165, China;
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149
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Guo R, Wang X, Han X, Chen X, Wang-Pruski G. Physiological and transcriptomic responses of water spinach (Ipomoea aquatica) to prolonged heat stress. BMC Genomics 2020; 21:533. [PMID: 32746779 PMCID: PMC7430824 DOI: 10.1186/s12864-020-06953-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 07/27/2020] [Indexed: 02/02/2023] Open
Abstract
Background Water spinach (Ipomoea aquatica) is an important heat-resistant leafy vegetable that can survive under long-time heat stress condition. However, the physiological characteristics and molecular changes in its response to heat stress are poorly understood. Results In this study the selected water spinach cultivars with different thermo resistance and their physiological response to heat stress were examined. Under prolonged heat stress, plant growth was inhibited in all tested cultivars. This inhibition was accompanied by the reduction of photosynthetic performance. The reactive oxygen species system in terms of superoxide and hydrogen peroxide contents, as well as antioxidant polyphenols, were evaluated. The results showed that prolonged heat stress caused reduced antioxidant capacity, but the role of antioxidant capacity in a prolonged thermotolerance was not predominant. Transcriptomic analysis of the water spinach subjected to heat stress revealed that 4145 transcripts were specifically expressed with 2420 up-regulated and 1725 down-regulated in heat-sensitive and heat-tolerant cultivars treated with 42 °C for 15 days. Enrichment analysis of these differentially expressed genes showed that the main metabolic differences between heat-sensitive and heat-tolerant cultivars were the carbohydrate metabolism and phenylpropanoid biosynthesis. The results of carbohydrate profiles and RT-qPCR also suggested that heat stress altered carbohydrate metabolism and associated changes in transcriptional level of genes involved in sugar transport and metabolic transition. Conclusions The prolonged heat stress resulted in a reduced antioxidant capacity while the role of antioxidant capacity in a prolonged thermotolerance of water spinach was not predominant. Transcriptome analysis and the measurement of carbohydrates as well as the gene expression evaluation indicated that the response of the metabolic pathway such as carbohydrate and phenylpropanoid biosynthesis to heat stress may be a key player in thermo resistance.
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Affiliation(s)
- Rongfang Guo
- Joint FAFU-Dalhousie Lab, College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.,College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Xingru Wang
- Joint FAFU-Dalhousie Lab, College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Xiaoyun Han
- Joint FAFU-Dalhousie Lab, College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Xiaodong Chen
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Gefu Wang-Pruski
- Joint FAFU-Dalhousie Lab, College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China. .,Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS, B2N 5E3, Canada.
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150
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Li Y, Jian X, Li Y, Zeng X, Xu L, Khan MU, Lin W. OsPAL2-1 Mediates Allelopathic Interactions Between Rice and Specific Microorganisms in the Rhizosphere Ecosystem. Front Microbiol 2020; 11:1411. [PMID: 32793125 PMCID: PMC7391800 DOI: 10.3389/fmicb.2020.01411] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 05/29/2020] [Indexed: 11/13/2022] Open
Abstract
The use of plant allelopathy to control weeds in the field has been generally recognized as a win-win strategy because it is an environmentally friendly and resource-saving method. The mechanism of this natural weed-control method relies on allelochemicals, the rhizosphere microbiome, and their bio-interaction, and exploring the link between allelochemicals and specific microbes helps accelerate the application of allelopathic characteristics in farming. In this study, we used allelopathic rice PI312777 (PI), its genetically modified OsPAL2-1 repression (PR) or overexpression (PO) lines, and non-allelopathic rice Lemont (Le) as donor plants to reveal the bio-interaction between rice allelochemicals and rhizosphere specific microorganisms. The results showed a higher content of phenolic acid exudation from the roots of PI than those of Le, which resulted in a significantly increased population of Myxococcus in the rhizosphere soil. Transgenic PO lines exhibited increasing exudation of phenolic acid, which led to the population of Myxococcus xanthus in the rhizosphere soil of PO to be significantly increased, while PR showed the opposite result in comparison with wild type PI. Exogenous application of phenolic acid induced the growth of M. xanthus, and the expressions of chemotaxis-related genes were up-regulated in M. xanthus. In addition, quercetin was identified in the culture medium; according to the bioassay determination, a quercetin concentration of 0.53 mM inhibited the root length by 60.59%. Our study indicates that OsPAL2-1 is among the efficient genes that regulate rice allelopathy by controlling the synthesis of phenolic acid allelochemicals, and phenolic acid (ferulic acid, FA) induces the chemotactic aggregation of M. xanthus, which promoted the proliferation and aggregation of this microbe. The potential allelochemical, quercetin was generated from the FA-induced M. xanthus cultured medium.
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Affiliation(s)
- Yingzhe Li
- Fujian Provincial Key Laboratory of Agroecological Processing and Safety Monitoring, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China.,Key Laboratory of Crop Ecology and Molecular Physiology (Fujian Agriculture and Forestry University), Fujian Province University, Fuzhou, China
| | - Xin Jian
- Fujian Provincial Key Laboratory of Agroecological Processing and Safety Monitoring, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China.,Key Laboratory of Crop Ecology and Molecular Physiology (Fujian Agriculture and Forestry University), Fujian Province University, Fuzhou, China
| | - Yue Li
- Fujian Provincial Key Laboratory of Agroecological Processing and Safety Monitoring, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China.,Key Laboratory of Crop Ecology and Molecular Physiology (Fujian Agriculture and Forestry University), Fujian Province University, Fuzhou, China
| | - Xiaomei Zeng
- Fujian Provincial Key Laboratory of Agroecological Processing and Safety Monitoring, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China.,Key Laboratory of Crop Ecology and Molecular Physiology (Fujian Agriculture and Forestry University), Fujian Province University, Fuzhou, China
| | - Lining Xu
- Fujian Provincial Key Laboratory of Agroecological Processing and Safety Monitoring, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China.,Key Laboratory of Crop Ecology and Molecular Physiology (Fujian Agriculture and Forestry University), Fujian Province University, Fuzhou, China
| | - Muhammad Umar Khan
- Fujian Provincial Key Laboratory of Agroecological Processing and Safety Monitoring, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China.,Key Laboratory of Crop Ecology and Molecular Physiology (Fujian Agriculture and Forestry University), Fujian Province University, Fuzhou, China
| | - Wenxiong Lin
- Fujian Provincial Key Laboratory of Agroecological Processing and Safety Monitoring, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China.,Key Laboratory of Crop Ecology and Molecular Physiology (Fujian Agriculture and Forestry University), Fujian Province University, Fuzhou, China.,Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
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