Shuming Nie, Ruozhu Zhao, Wenwen Yang, Jiajia Li, Dan Wang
{"title":"过表达 SlMYB1R1 可提高番茄对寒冷胁迫的耐受性","authors":"Shuming Nie, Ruozhu Zhao, Wenwen Yang, Jiajia Li, Dan Wang","doi":"10.1016/j.scienta.2024.113662","DOIUrl":null,"url":null,"abstract":"<div><div>Low temperatures can affect plant growth and geographical distribution. This study identified an MYB transcription factor, which is a positive regulator of chilling tolerance in tomato (<em>Solanum lycopersicum</em>), designated <em>SlMYB1R1</em>. The germination vigor and radicle lengths of overexpression <em>SlMYB1R1</em> (<em>SlMYB1R1OE</em>) lines were significantly higher than those of the wild-type (Micro-Tom; MT) lines during germination. The leaf angle and leaf length of <em>SlMYB1R1OE</em> plants were significantly greater than those of MT plants. Furthermore, the expression of <em>SlMYB1R1</em> was induced by cold stress. The degree of wilting was lower in <em>SlMYB1R1OE</em> plants than in MT plants under chilling stress. Overexpression of <em>SlMYB1R1</em> in tomatoes resulted in low relative electrolyte leakage, malondialdehyde content, and reactive oxygen levels. The activities of peroxidase and catalase in <em>SlMYB1R1OE</em> plants were higher than those in MT plants after chilling stress. During cold stress, the transcriptional levels of the four cold-related genes were higher in <em>SlMYB1R1OE</em> lines than in MT plants. These results show that <em>SlMYB1R1</em> plays key roles in tolerance to chilling stress in tomato.</div></div>","PeriodicalId":21679,"journal":{"name":"Scientia Horticulturae","volume":null,"pages":null},"PeriodicalIF":3.9000,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Overexpression of SlMYB1R1 improves chilling stress tolerance in tomato\",\"authors\":\"Shuming Nie, Ruozhu Zhao, Wenwen Yang, Jiajia Li, Dan Wang\",\"doi\":\"10.1016/j.scienta.2024.113662\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Low temperatures can affect plant growth and geographical distribution. This study identified an MYB transcription factor, which is a positive regulator of chilling tolerance in tomato (<em>Solanum lycopersicum</em>), designated <em>SlMYB1R1</em>. The germination vigor and radicle lengths of overexpression <em>SlMYB1R1</em> (<em>SlMYB1R1OE</em>) lines were significantly higher than those of the wild-type (Micro-Tom; MT) lines during germination. The leaf angle and leaf length of <em>SlMYB1R1OE</em> plants were significantly greater than those of MT plants. Furthermore, the expression of <em>SlMYB1R1</em> was induced by cold stress. The degree of wilting was lower in <em>SlMYB1R1OE</em> plants than in MT plants under chilling stress. Overexpression of <em>SlMYB1R1</em> in tomatoes resulted in low relative electrolyte leakage, malondialdehyde content, and reactive oxygen levels. The activities of peroxidase and catalase in <em>SlMYB1R1OE</em> plants were higher than those in MT plants after chilling stress. During cold stress, the transcriptional levels of the four cold-related genes were higher in <em>SlMYB1R1OE</em> lines than in MT plants. These results show that <em>SlMYB1R1</em> plays key roles in tolerance to chilling stress in tomato.</div></div>\",\"PeriodicalId\":21679,\"journal\":{\"name\":\"Scientia Horticulturae\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.9000,\"publicationDate\":\"2024-09-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Scientia Horticulturae\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S030442382400815X\",\"RegionNum\":2,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"HORTICULTURE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Scientia Horticulturae","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S030442382400815X","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"HORTICULTURE","Score":null,"Total":0}
Overexpression of SlMYB1R1 improves chilling stress tolerance in tomato
Low temperatures can affect plant growth and geographical distribution. This study identified an MYB transcription factor, which is a positive regulator of chilling tolerance in tomato (Solanum lycopersicum), designated SlMYB1R1. The germination vigor and radicle lengths of overexpression SlMYB1R1 (SlMYB1R1OE) lines were significantly higher than those of the wild-type (Micro-Tom; MT) lines during germination. The leaf angle and leaf length of SlMYB1R1OE plants were significantly greater than those of MT plants. Furthermore, the expression of SlMYB1R1 was induced by cold stress. The degree of wilting was lower in SlMYB1R1OE plants than in MT plants under chilling stress. Overexpression of SlMYB1R1 in tomatoes resulted in low relative electrolyte leakage, malondialdehyde content, and reactive oxygen levels. The activities of peroxidase and catalase in SlMYB1R1OE plants were higher than those in MT plants after chilling stress. During cold stress, the transcriptional levels of the four cold-related genes were higher in SlMYB1R1OE lines than in MT plants. These results show that SlMYB1R1 plays key roles in tolerance to chilling stress in tomato.
期刊介绍:
Scientia Horticulturae is an international journal publishing research related to horticultural crops. Articles in the journal deal with open or protected production of vegetables, fruits, edible fungi and ornamentals under temperate, subtropical and tropical conditions. Papers in related areas (biochemistry, micropropagation, soil science, plant breeding, plant physiology, phytopathology, etc.) are considered, if they contain information of direct significance to horticulture. Papers on the technical aspects of horticulture (engineering, crop processing, storage, transport etc.) are accepted for publication only if they relate directly to the living product. In the case of plantation crops, those yielding a product that may be used fresh (e.g. tropical vegetables, citrus, bananas, and other fruits) will be considered, while those papers describing the processing of the product (e.g. rubber, tobacco, and quinine) will not. The scope of the journal includes all horticultural crops but does not include speciality crops such as, medicinal crops or forestry crops, such as bamboo. Basic molecular studies without any direct application in horticulture will not be considered for this journal.