MUTATIONS AT 2 NEW ARABIDOPSIS ABA RESPONSE LOCI ARE SIMILAR TO THE ABI3 MUTATIONS
MUTATIONS AT 2 NEW ARABIDOPSIS ABA RESPONSE LOCI ARE SIMILAR TO THE ABI3 MUTATIONS
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DOI：
10.1046/j.1365-313x.1994.5060765.x
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发表时间：
1994-06-01
期刊：
影响因子：
7.2
通讯作者：
FINKELSTEIN, RR
中科院分区：
文献类型：
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作者：
FINKELSTEIN, RR
通过突变鉴定了两个新的拟南芥阿坝反应基因座：ABA不敏感（ABI）4和ABI 5。对abi4和abi5突变体进行了阿坝敏感性、种子萌发、休眠、种子特异基因表达和气孔调节等方面的研究。它们的表型与ABI3中的突变相似，ABI3被认为编码种子特异性转录激活因子。对abi4和abi5突变与abi1、abi2或abi3突变组合的双突变体的分析也表明，ABI4和ABI5在与ABI3相同的转导途径中起作用。
Two new Arabidopsis loci involved in ABA response, ABA-insensitive (ABI)4 and ABI5, have been identified by mutation. The abi4 and abi5 mutants were characterized in terms of ABA sensitivity of seed germination, dormancy, seed-specific gene expression and stomatal regulation. Their phenotypes are similar to mutations in ABI3, which is thought to encode a seed-specific transcriptional activator. Analysis of double mutants combining abi4 and abi5 mutations with abi1, abi2 or abi3 mutations also suggests that ABI4 and ABI5 act in the same transduction pathway as ABI3.