INSENSITIVITY TO ETHYLENE CONFERRED BY A DOMINANT MUTATION IN ARABIDOPSIS-THALIANA
INSENSITIVITY TO ETHYLENE CONFERRED BY A DOMINANT MUTATION IN ARABIDOPSIS-THALIANA
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DOI：
10.1126/science.241.4869.1086
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发表时间：
1988-08-26
期刊：
影响因子：
56.9
通讯作者：
KENDE, H
中科院分区：
文献类型：
--
作者：
BLEECKER, AB;ESTELLE, MA;KENDE, H
乙烯影响高等植物的许多发育过程和对胁迫的反应。在改变了对乙烯反应的拟南芥突变体中，研究了乙烯作用的分子基础。一个突变株系在一个名为etr的基因座上有一个显性突变，它缺乏野生型植物中存在的许多对乙烯的反应。这些作用包括抑制细胞伸长，促进种子萌发，提高过氧化物酶活性，加速叶片衰老，以及反馈抑制乙烯的合成。这些不同的反应发生在拟南芥的不同组织中，似乎在它们的转导途径中有一些共同的元件。例如，乙烯的单一受体。体内乙烯结合实验结果表明，该受体可能受到ETR突变的影响。
Ethylene influences a number of developmental processes and responses to stress in higher plants. The molecular basis for the action of ethylene was investigated in mutants of Arabidopsis thaliana that have altered responses to ethylene. One mutant line, which has a dominant mutation at a locus designated etr, lacks a number of responses to ethylene that are present in the wild-type plant. These include inhibition of cell elongation, promotion of seed germination, enhancement of peroxidase activity, acceleration of leaf senescence, and feedback suppression of ethylene synthesis by ethylene. These diverse responses, which occur in different tissues of Arabidopsis, appear to share some common element in their transduction pathways.sbd.for example, a single receptor for ethylene. Results of ethylene binding experiments in vivo indicate that this receptor may be affected by the etr mutation.