OsHSF7 gene in rice, Oryza sativa L., encodes a transcription factor that functions as a high temperature receptive and responsive factor
OsHSF7 gene in rice, Oryza sativa L., encodes a transcription factor that functions as a high temperature receptive and responsive factor
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水稻 Oryza sativa L. 中的 OsHSF7 基因编码一种转录因子，可作为高温接受和响应因子
DOI：
10.5483/bmbrep.2009.42.1.016
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发表时间：
2009-01-31
期刊：
影响因子：
3.8
通讯作者：
Yao, Quan-Hong
中科院分区：
文献类型：
--
作者：
Liu, Jin-Ge;Qin, Qiu-lin;Yao, Quan-Hong
利用酵母杂交技术从水稻中克隆了3个编码热激转录因子（HSF）的新A类基因。OsHSF 7基因对温度的响应迅速而高水平表达，这表明它可能参与热应激的接收和响应。OsHSF 7在转基因拟南芥中的过量表达并不能超过大多数HSF靶基因的表达;但是，在热胁迫处理2小时后，一些HSF靶基因在转基因植物中的转录更丰富。此外，这些转基因植株还具有较高的基础耐热性，但不具有获得性耐热性。综上所述，OsHSF 7可能在高温胁迫下发挥重要作用。具体而言，这些发现表明0 sHSF 7可用于生产转基因单子叶植物，所述转基因单子叶植物可响应于热胁迫而过表达保护性基因如HSP，这将使这些植物能够耐受高温。[BMB报告2009; 42（1）：16-21]
Three novel Class A genes that encode heat shock transcription factor (HSF) were cloned from Oryza Sativa L using a yeast hybrid method. The OsHSF7 gene was found to be rapidly expressed in high levels in response to temperature, which indicates that it may be involved in heat stress reception and response. Over-expression of OsHSF7 in transgenic Arabidopsis could not induced over the expression of most target heat stress-inducible genes of HSFs; however, the transcription of some HSF target genes was more abundant in transgenic plants following two hours of heat stress treatment. In addition, those transgenic plants also had a higher basal thermotolerance, but not acquired thermotolerance. Collectively, the results of this study indicate that OsHSF7 might play an important role in the response to high temperature. Specifically, these findings indicate that OsHSF7 may be useful in the production of transgenic monocots that can over-express protective genes such as HSPs in response to heat stress, which will enable such plants to tolerate high temperatures. [BMB reports 2009; 42(1): 16-21]