The promoter of LE-ACS7, an early flooding-induced 1-aminocyclopropane-1-carboxylate synthase gene of the tomato, is tagged by a Sol3 transposon

被引:78
作者
Shiu, OY [1 ]
Oetiker, JH
Yip, WK
Yang, SF
机构
[1] Univ Calif Davis, Dept Vegetable Crops, Davis, CA 95616 USA
[2] Univ Hong Kong, Dept Bot, Hong Kong, Peoples R China
[3] Univ Basel, Inst Bot, CH-4056 Basel, Switzerland
[4] Acad Sinica, Inst Bot, Taipei, Taiwan
关键词
ethylene; gene expression; wounding; seedling hypocotyl; inverted repeat;
D O I
10.1073/pnas.95.17.10334
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Many terrestrial plants respond to flooding with enhanced ethylene production. The roots of flooded plants produce 1-aminogclopropane-1-carboxylic acid (ACC), which is transported from the root to the shoot, where it is converted to ethylene. In the roots, ACC is synthesized by ACC synthase, which is encoded by a multigene family. Previously, we identified two ACC synthase genes of tomato that are involved in flooding-induced ethylene production. Here, we report the cloning of LE-ACS7, a new tomato ACC synthase with a role early during flooding but also in the early wound response of leaves. The promoter of LE-ACS7 is tagged by a Sol3 transposon. A Sol3 transposon is also present in the tomato polygalacturonase promoter to which it conferred regulatory elements. Thus, Sol3 transposons may affect the regulation of LE-ACS7 and may be involved in the communication between the root and the shoot of waterlogged tomato plants.
引用
收藏
页码:10334 / 10339
页数:6
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