ShCIGT, a Trihelix family gene, mediates cold and drought tolerance by interacting with SnRK1 in tomato
ShCIGT, a Trihelix family gene, mediates cold and drought tolerance by interacting with SnRK1 in tomato
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ShCIGT 是一种 Trihelix 家族基因，通过与番茄中的 SnRK1 相互作用介导耐冷和耐旱性
DOI：
10.1016/j.plantsci.2018.02.012
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发表时间：
2018-05-01
期刊：
影响因子：
5.2
通讯作者：
Ye, Zhibiao
中科院分区：
文献类型：
--
作者：
Yu, Chuying;Song, Lulu;Ye, Zhibiao
非生物胁迫，如干旱和低温胁迫，对植物的生长发育有重要影响。三螺旋转录因子家族在植物形态发育和对非生物胁迫的适应中起着重要作用。在本研究中，我们从野生番茄品种Solanum habrochaites中分离到一个名为ShCIGT的冷诱导基因，并发现它与非生物的逆境耐受性有关。ShCIGT属于三螺旋转录因子中的GT-1亚家族。它在各种组织中有结构性表达。它的表达受多种非生物胁迫和脱落酸(ABA)的诱导。ShCIGT在栽培番茄中的过表达提高了番茄的耐冷性和抗旱性。此外，转基因植株在萌发后生长过程中对ABA的敏感性降低。我们发现ShCIGT与SnRK1相互作用，SnRK1是代谢信号网络中的能量感受器，控制植物的新陈代谢、生长发育和逆境耐受性。基于这些数据，我们得出结论，ShCIGT可能通过与SnRK1相互作用来提高番茄的非生物逆境耐性。
Abiotic stress, such as drought and cold stress, have a major impact on plant growth and development. The trihelix transcription factor family plays important roles in plant morphological development and adaptation to abiotic stresses. In this study, we isolated a cold-induced gene named ShCIGT from the wild tomato species Solanum habrochaites and found that it contributes to abiotic stress tolerance. ShCIGT belongs to the GT-1 subfamily of the trihelix transcription factors. It was constitutively expressed in various tissues. Its expression was induced by multiple abiotic stresses and abscisic acid (ABA). Overexpression of ShCIGT in cultivated tomato enhanced cold and drought stress tolerance. In addition, the transgenic plants displayed a reduced sensitivity to ABA during post-germination growth. We found that ShCIGT interacts with SnRK1, an energy sensor in the metabolic signaling network, which controls plant metabolism, growth and development, and stress tolerance. Based on these data, we conclude ShCIGT may improve abiotic-stress tolerance in tomato by interacting with SnRK1.