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Chen MZ, Zhong XM, Lin HS, Qin XM. Combined Transcriptome and Metabolome Analysis of Musa nana Laur. Peel Treated With UV-C Reveals the Involvement of Key Metabolic Pathways. Front Genet 2022; 12:792991. [PMID: 35154246 PMCID: PMC8830439 DOI: 10.3389/fgene.2021.792991] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 12/23/2021] [Indexed: 11/13/2022] Open
Abstract
An increasing attention is being given to treat fruits with ultraviolet C (UV-C) irradiation to extend shelf-life, senescence, and protection from different diseases during storage. However, the detailed understanding of the pathways and key changes in gene expression and metabolite accumulation related to UV-C treatments are yet to be explored. This study is a first attempt to understand such changes in banana peel irradiated with UV-C. We treated Musa nana Laur. with 0.02 KJ/m2 UV-C irradiation for 0, 4, 8, 12, 15, and 18 days and studied the physiological and quality indicators. We found that UV-C treatment reduces weight loss and decay rate, while increased the accumulation of total phenols and flavonoids. Similarly, our results demonstrated that UV-C treatment increases the activity of defense and antioxidant system related enzymes. We observed that UV-C treatment for 8 days is beneficial for M. nana peels. The peels of M. nana treated with UV-C for 8 days were then subjected to combined transcriptome and metabolome analysis. In total, there were 425 and 38 differentially expressed genes and accumulated metabolites, respectively. We found that UV-C treatment increased the expression of genes in secondary metabolite biosynthesis related pathways. Concomitant changes in the metabolite accumulation were observed. Key pathways that were responsive to UV-C irradiation include flavonoid biosynthesis, phenylpropanoid bios6ynthesis, plant-pathogen interaction, MAPK signaling (plant), and plant hormone signal transduction pathway. We concluded that UV-C treatment imparts beneficial effects on banana peels by triggering defense responses against disease, inducing expression of flavonoid and alkaloid biosynthesis genes, and activating phytohormone and MAPK signaling pathways.
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Affiliation(s)
- Ming-zhong Chen
- College of Food Science and Technology, and Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Ocean University, Zhanjiang, China
- Yangjiang Polytechnic, Yangjiang, China
- *Correspondence: Ming-zhong Chen, ; Xiao-Ming Qin,
| | | | - Hai-Sheng Lin
- College of Food Science and Technology, and Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Ocean University, Zhanjiang, China
| | - Xiao-Ming Qin
- College of Food Science and Technology, and Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Ocean University, Zhanjiang, China
- *Correspondence: Ming-zhong Chen, ; Xiao-Ming Qin,
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Li W, Liu Y, Wang J, He M, Zhou X, Yang C, Yuan C, Wang J, Chern M, Yin J, Chen W, Ma B, Wang Y, Qin P, Li S, Ronald P, Chen X. The durably resistant rice cultivar Digu activates defence gene expression before the full maturation of Magnaporthe oryzae appressorium. MOLECULAR PLANT PATHOLOGY 2016; 17:354-68. [PMID: 26095454 PMCID: PMC6638526 DOI: 10.1111/mpp.12286] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Rice blast caused by the fungal pathogen Magnaporthe oryzae is one of the most destructive diseases worldwide. Although the rice-M. oryzae interaction has been studied extensively, the early molecular events that occur in rice before full maturation of the appressorium during M. oryzae invasion are unknown. Here, we report a comparative transcriptomics analysis of the durably resistant rice variety Digu and the susceptible rice variety Lijiangxintuanheigu (LTH) in response to infection by M. oryzae (5, 10 and 20 h post-inoculation, prior to full development of the appressorium). We found that the transcriptional responses differed significantly between these two rice varieties. Gene ontology and pathway analyses revealed that many biological processes, including extracellular recognition and biosynthesis of antioxidants, terpenes and hormones, were specifically activated in Digu shortly after infection. Forty-eight genes encoding receptor kinases (RKs) were significantly differentially regulated by M. oryzae infection in Digu. One of these genes, LOC_Os08g10300, encoding a leucine-rich repeat RK from the LRR VIII-2 subfamily, conferred enhanced resistance to M. oryzae when overexpressed in rice. Our study reveals that a multitude of molecular events occur in the durably resistant rice Digu before the full maturation of the appressorium after M. oryzae infection and that membrane-associated RKs play important roles in the early response.
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Affiliation(s)
- Weitao Li
- Rice Research Institute, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- Key Laboratory of Major Crop Diseases, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- State Key Laboratory of Hybrid Rice, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Ya Liu
- Rice Research Institute, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- Key Laboratory of Major Crop Diseases, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- State Key Laboratory of Hybrid Rice, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Jing Wang
- Rice Research Institute, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- Key Laboratory of Major Crop Diseases, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- State Key Laboratory of Hybrid Rice, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Min He
- Rice Research Institute, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- Key Laboratory of Major Crop Diseases, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- State Key Laboratory of Hybrid Rice, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Xiaogang Zhou
- Rice Research Institute, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- Key Laboratory of Major Crop Diseases, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- State Key Laboratory of Hybrid Rice, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Chao Yang
- Rice Research Institute, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- Key Laboratory of Major Crop Diseases, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- State Key Laboratory of Hybrid Rice, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Can Yuan
- Rice Research Institute, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- Key Laboratory of Major Crop Diseases, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- State Key Laboratory of Hybrid Rice, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Jichun Wang
- Rice Research Institute, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- Key Laboratory of Major Crop Diseases, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- State Key Laboratory of Hybrid Rice, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Mawsheng Chern
- Department of Plant Pathology and the Genome Center, University of California, Davis, CA, 95616, USA
| | - Junjie Yin
- Rice Research Institute, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- Key Laboratory of Major Crop Diseases, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- State Key Laboratory of Hybrid Rice, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Weilan Chen
- Rice Research Institute, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- Key Laboratory of Major Crop Diseases, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- State Key Laboratory of Hybrid Rice, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Bingtian Ma
- Rice Research Institute, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- Key Laboratory of Major Crop Diseases, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- State Key Laboratory of Hybrid Rice, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Yuping Wang
- Rice Research Institute, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- Key Laboratory of Major Crop Diseases, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- State Key Laboratory of Hybrid Rice, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- Collaborative Innovation Center for Hybrid Rice in Yangtze River Basin at Sichuan, Chengdu, Sichuan, 611130, China
| | - Peng Qin
- Rice Research Institute, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- Key Laboratory of Major Crop Diseases, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- State Key Laboratory of Hybrid Rice, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Shigui Li
- Rice Research Institute, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- Key Laboratory of Major Crop Diseases, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- State Key Laboratory of Hybrid Rice, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- Collaborative Innovation Center for Hybrid Rice in Yangtze River Basin at Sichuan, Chengdu, Sichuan, 611130, China
| | - Pamela Ronald
- Department of Plant Pathology and the Genome Center, University of California, Davis, CA, 95616, USA
| | - Xuewei Chen
- Rice Research Institute, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- Key Laboratory of Major Crop Diseases, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- State Key Laboratory of Hybrid Rice, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
- Collaborative Innovation Center for Hybrid Rice in Yangtze River Basin at Sichuan, Chengdu, Sichuan, 611130, China
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