Abiotic stresses remain the key environmental issues that reduce plant development and therefore affect crop production. Transcription factors, such as the GRAS family, are involved in various functions of abiotic stresses and plant growth. The GRAS family of tomato (Solanum lycopersicum), SlGRAS7, is described in this study. We produced overexpressing SlGARS7 plants to learn more about the GRAS transcription factors. Plants overexpressing SlGARS7 (SlGRAS7-OE) showed multiple phenotypes related to many behaviors, including plant height, root and shoot length, and flowering time. We observed that many genes in the SlGRAS7-OE seedlings that are associated with auxin and gibberellin (GA) are downregulated and have altered sensitivity to GA₃/IAA. SlGRAS7 was upregulated during abiotic stresses following treatment with sodium chloride (NaCl) and D-mannitol in the wild-type (WT) tomato. Tomato plants overexpressing SlGRAS7 showed more resistance to drought and salt stress comparison with WT. Our study of SlGRAS7 in tomato demonstrates how GRAS showed an integrative role, improving resistance to abiotic stresses and enhancing gibberellin/auxin signaling through reproductive as well as vegetative processes.

中文翻译：

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SlGRAS7的过表达影响多种行为，导致赋予非生物胁迫耐受性，并影响番茄中的赤霉素和生长素信号传导。

非生物胁迫仍然是减少植物发育并因此影响作物产量的关键环境问题。转录因子（例如GRAS家族）参与非生物胁迫和植物生长的各种功能。在这项研究中描述了番茄（Solaum lycopersicum）的GRAS家族SlGRAS7。我们生产了过表达SlGARS7的植物，以更多地了解GRAS转录因子。过表达SlGARS7（SlGRAS7 -OE）的植物表现出与许多行为相关的多种表型，包括植物高度，根和茎长以及开花时间。我们观察到SlGRAS7中有许多基因与生长素和赤霉素（GA）相关的-OE幼苗被下调，并且对GA ₃ / IAA的敏感性发生了变化。在野生型（WT）番茄中，用氯化钠（NaCl）和D-甘露醇处理后，非生物胁迫期间SlGRAS7上调。与野生型相比，过表达SlGRAS7的番茄植株对干旱和盐胁迫表现出更大的抗性。我们对番茄中的SlGRAS7的研究表明，GRAS如何通过繁殖和营养过程发挥整合作用，提高对非生物胁迫的抗性并增强赤霉素/生长素信号传导。