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Liang J, Guo J, Liu Y, Zhang Z, Zhou R, Zhang P, Liang C, Wen P. UV-C Promotes the Accumulation of Flavane-3-ols in Juvenile Fruit of Grape through Positive Regulating VvMYBPA1. PLANTS (BASEL, SWITZERLAND) 2023; 12:1691. [PMID: 37111914 PMCID: PMC10144632 DOI: 10.3390/plants12081691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 04/10/2023] [Accepted: 04/13/2023] [Indexed: 06/19/2023]
Abstract
Flavane-3-ol monomers are the precursors of proanthocyanidins (PAs), which play a crucial role in grape resistance. Previous studies showed that UV-C positively regulated leucoanthocyanidin reductase (LAR) enzyme activity to promote the accumulation of total flavane-3-ols in juvenile grape fruit, but its molecular mechanism was still unclear. In this paper, we found that the contents of flavane-3-ol monomers increased dramatically at the early development stage grape fruit after UV-C treatment, and the expression of its related transcription factor VvMYBPA1 was also enhanced significantly. The contents of (-)-epicatechin and (+)-catechin, the expression level of VvLAR1 and VvANR, and the activities of LAR and anthocyanidin reductase (ANR) were improved significantly in the VvMYBPA1 overexpressed grape leaves compared to the empty vector. Both VvMYBPA1 and VvMYC2 could interact with VvWDR1 using bimolecular fluorescence complementation (BiFC) and yeast two hybrid (Y2H). Finally, VvMYBPA1 was proven to bind with the promoters of VvLAR1 and VvANR by yeast one hybrid (Y1H). To sum up, we found that the expression of VvMYBPA1 increased in the young stage of grape fruit after UV-C treatment. VvMYBPA1 formed a trimer complex with VvMYC2 and VvWDR1 to regulate the expression of VvLAR1 and VvANR, thus positively promoting the activities of LAR and ANR enzyme, and eventually improved the accumulation of flavane-3-ols in grape fruit.
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Affiliation(s)
- Jinjun Liang
- College of Horticulture, Shanxi Agricultural University, Taigu 030801, China; (J.L.)
| | - Jianyong Guo
- College of Horticulture, Shanxi Agricultural University, Taigu 030801, China; (J.L.)
| | - Yafei Liu
- College of Horticulture, Shanxi Agricultural University, Taigu 030801, China; (J.L.)
| | - Zening Zhang
- College of Horticulture, Shanxi Agricultural University, Taigu 030801, China; (J.L.)
| | - Runtian Zhou
- College of Horticulture, Shanxi Agricultural University, Taigu 030801, China; (J.L.)
| | - Pengfei Zhang
- College of Horticulture, Shanxi Agricultural University, Taigu 030801, China; (J.L.)
| | - Changmei Liang
- College of Information Science and Engineering, Shanxi Agricultural University, Taigu 030801, China
| | - Pengfei Wen
- College of Horticulture, Shanxi Agricultural University, Taigu 030801, China; (J.L.)
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Li J, Feng B, Yu P, Fu W, Wang W, Lin J, Qin Y, Li H, Chen T, Xu C, Tao L, Wu Z, Fu G. Oligomeric Proanthocyanidins Confer Cold Tolerance in Rice through Maintaining Energy Homeostasis. Antioxidants (Basel) 2022; 12:antiox12010079. [PMID: 36670941 PMCID: PMC9854629 DOI: 10.3390/antiox12010079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/23/2022] [Accepted: 12/27/2022] [Indexed: 12/31/2022] Open
Abstract
Oligomeric proanthocyanidins (OPCs) are abundant polyphenols found in foods and botanicals that benefit human health, but our understanding of the functions of OPCs in rice plants is limited, particularly under cold stress. Two rice genotypes, named Zhongzao39 (ZZ39) and its recombinant inbred line RIL82, were subjected to cold stress. More damage was caused to RIL82 by cold stress than to ZZ39 plants. Transcriptome analysis suggested that OPCs were involved in regulating cold tolerance in the two genotypes. A greater increase in OPCs content was detected in ZZ39 than in RIL82 plants under cold stress compared to their respective controls. Exogenous OPCs alleviated cold damage of rice plants by increasing antioxidant capacity. ATPase activity was higher and poly (ADP-ribose) polymerase (PARP) activity was lower under cold stress in ZZ39 than in RIL82 plants. Importantly, improvements in cold tolerance were observed in plants treated with the OPCs and 3-aminobenzamide (PARP inhibitor, 3ab) combination compared to the seedling plants treated with H2O, OPCs, or 3ab alone. Therefore, OPCs increased ATPase activity and inhibited PARP activity to provide sufficient energy for rice seedling plants to develop antioxidant capacity against cold stress.
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Affiliation(s)
- Juncai Li
- Agronomy College, Jilin Agricultural University, Changchun 130118, China
- National Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Baohua Feng
- National Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Pinghui Yu
- National Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Weimeng Fu
- National Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Wenting Wang
- National Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Jie Lin
- Agronomy College, Jilin Agricultural University, Changchun 130118, China
- National Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Yebo Qin
- Zhejiang Agricultural Technology Extension Center, Hangzhou 310020, China
| | - Hubo Li
- National Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Tingting Chen
- National Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Chunmei Xu
- National Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Longxing Tao
- National Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Zhihai Wu
- Agronomy College, Jilin Agricultural University, Changchun 130118, China
- Correspondence: (Z.W.); (G.F.)
| | - Guanfu Fu
- Agronomy College, Jilin Agricultural University, Changchun 130118, China
- National Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
- Correspondence: (Z.W.); (G.F.)
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Wang J, Lu S, Bian H, Xu M, Zhu W, Wang H, He C, Sheng L. Effects of individual and combined polystyrene nanoplastics and phenanthrene on the enzymology, physiology, and transcriptome parameters of rice (Oryza sativa L.). CHEMOSPHERE 2022; 304:135341. [PMID: 35716708 DOI: 10.1016/j.chemosphere.2022.135341] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 06/07/2022] [Accepted: 06/11/2022] [Indexed: 06/15/2023]
Abstract
Owing to their wide distribution, easy production, and resistance to degradation, microplastics (MPs) represent a globally emerging group of pollutants of concern. Furthermore, their decomposition can result in the generation of nanoplastics (NPs), which cause further environmental issues. Currently, the impact of the combination of these plastics with other organic pollutants on crop growth remains poorly investigated. In this study, a hydroponic experiment was conducted for seven days to evaluate the effects of 50 nm, 50 mg/L polystyrene (PS), and 1 mg/L phenanthrene (Phe) on the growth of rice plants. The results revealed that both Phe and PS inhibited growth and improved the antioxidant potential of rice. Relative to Phe alone, exposure to a combination of PS and Phe reduced Phe accumulation in the roots and shoots by 67.73% and 36.84%, respectively, and decreased the pressure on the antioxidant system. Exposure to Phe alone destroyed the photosynthetic system of rice plant leaves, whereas a combination of PS and Phe alleviated this damage. Gene Ontology (GO) analysis of the rice transcriptomes revealed that detoxification genes and phenylalanine metabolism were suppressed under exposure to Phe, which consequently diminished the antioxidant capacity and polysaccharide synthesis in rice plants. Kyoto Encyclopaedia of Genes and Genomes (KEGG) transcriptome analysis revealed that the combined presence of both PS and Phe improved photosynthesis and energy metabolism and alleviated the toxic effects of Phe by altering the carbon fixation pathway and hormone signal transduction in rice plants. The combination of PS and Phe also prevented Phe-associated damage to rice growth. These findings improve our understanding of the effects of MP/NPs and polycyclic aromatic hydrocarbons on crops.
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Affiliation(s)
- Junyuan Wang
- State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun, Jilin, 130117, China
| | - Siyuan Lu
- State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun, Jilin, 130117, China
| | - Hongfeng Bian
- State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun, Jilin, 130117, China
| | - Miao Xu
- Key Laboratory of Straw Biology and Higher Value Application, The Ministry of Education, College of Life Science, Jilin Agricultural University, Changchun, Jilin, 130118, China
| | - Weize Zhu
- State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun, Jilin, 130117, China
| | - Hanxi Wang
- State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun, Jilin, 130117, China
| | - Chunguang He
- State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun, Jilin, 130117, China.
| | - Lianxi Sheng
- State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun, Jilin, 130117, China.
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