OsSLI1, a homeodomain containing transcription activator, involves abscisic acid related stress response in rice (Oryza sativa L.).
OsSLI1, a homeodomain containing transcription activator, involves abscisic acid related stress response in rice (Oryza sativa L.).
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OsSLI1 是一种含有转录激活剂的同源结构域，涉及水稻 (Oryza sativa L.) 中脱落酸相关的应激反应
DOI：
10.1155/2014/809353
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发表时间：
2014
影响因子：
--
通讯作者：
Zhang HS
中科院分区：
文献类型：
--
作者：
Huang X;Duan M;Liao J;Yuan X;Chen H;Feng J;Huang J;Zhang HS
同源结构域-亮氨酸拉链I(HD-Zip I)蛋白参与植物发育的调节和对环境胁迫的响应。在本研究中，从水稻中分离到编码HD-Zip I亚家族成员的OsSLI1(水稻胁迫主要诱导基因1)。OsSLI1的表达受到多种非生物胁迫和外源脱落酸(ABA)的强烈诱导。在电子计算机序列分析中，在OsSLI1的上游启动子区域发现了几个顺式作用元件，包括多个ABRES(ABA反应元件结合因子)。将OsSLI1-GFP融合蛋白定位于水稻原生质体细胞核中，酵母杂交系统证实了OsSLI1的转录活性。此外，还发现在胁迫条件下，水稻类ABL1基因缺失突变体ABL1的OsSLI1表达增强，这表明ABL1可能负调控OsSLI1基因的表达。此外，还发现OsSLI1基因在穗部发育过程中存在调控作用。综上所述，OsSLI1可能是调节水稻逆境反应基因表达和穗部发育的转录激活因子。
Homeodomain-leucine zipper type I (HD-Zip I) proteins are involved in the regulation of plant development and response to environmental stresses. In this study, OsSLI1 (Oryza sativa stress largely induced 1), encoding a member of the HD-Zip I subfamily, was isolated from rice. The expression of OsSLI1 was dramatically induced by multiple abiotic stresses and exogenous abscisic acid (ABA). In silico sequence analysis discovered several cis-acting elements including multiple ABREs (ABA-responsive element binding factors) in the upstream promoter region of OsSLI1. The OsSLI1-GFP fusion protein was localized in the nucleus of rice protoplast cells and the transcriptional activity of OsSLI1 was confirmed by the yeast hybrid system. Further, it was found that OsSLI1 expression was enhanced in an ABI5-Like1 (ABL1) deficiency rice mutant abl1 under stress conditions, suggesting that ABL1 probably negatively regulates OsSLI1 gene expression. Moreover, it was found that OsSLI1 was regulated in panicle development. Taken together, OsSLI1 may be a transcriptional activator regulating stress-responsive gene expression and panicle development in rice.
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影响因子：
12.3
作者：
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通讯作者：
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影响因子：
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影响因子：
2.6
作者：
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影响因子：
5.1
作者：
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影响因子：
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作者：
Agalou, Adamantia;Purwantomo, Sigit;Ouwerkerk, Pieter B. F.
通讯作者：
Ouwerkerk, Pieter B. F.