The unusual Arabidopsis extensin gene atExt1 is expressed throughout plant development and is induced by a variety of biotic and abiotic stresses

被引:62
作者
Merkouropoulos, G [1 ]
Shirsat, AH [1 ]
机构
[1] Univ Wales, Sch Biol Sci, Bangor LL57 2UW, Gwynedd, Wales
关键词
Arabidopsis; extensin; methyl jasmonate; injection; salicylic acid; senescence;
D O I
10.1007/s00425-003-1002-y
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
We detail the expression of the Arabidopsis thaliana (L.) Heynh. atExt1 extensin gene. atExt1 is normally expressed in roots and inflorescences, and is induced by wounding, exogenously supplied salicylic acid, methyl jasmonate, auxins and brassinosteroids. Northern assays and histochemical analysis of transgenics expressing an atExt1::gus fusion show that this gene is also induced by the brassica pathogen Xanthomonas campestris pv. campestris and that this induction is restricted to tissues close to the site of infection. Expression at regions of abscission and senescence also implicates atExt1 in these important developmental processes.
引用
收藏
页码:356 / 366
页数:11
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