中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Sinorhizobium meliloti nifa gene exerts a pleiotropic effect on nodulation through the enhanced plant defense response

文献类型:期刊论文

作者Chen XiaoTao; Zou HuaSong; Yao ZhenHua; Cheng HaiPing; Dai XiaoMi; Zhu JiaBi; Yu GuanQiao
刊名Chinese science bulletin
出版日期2007-11-01
卷号52期号:21页码:2925-2929
关键词Nifa Hypersensitive response Nodulation Nod factor
ISSN号1001-6538
DOI10.1007/s11434-007-0427-2
通讯作者Yu guanqiao(gqyu@sippe.ac.cn)
英文摘要Sinorhizobium meliloti nifa gene is required for the expression of a bunch of nif and fix genes. here, we report its pleiotropic effects on the nodule formation. compared with wild type strain, nifa mutant significantly reduced nodule suppression rate in split-root system. the plants inoculated with mutant strain produced lower amount of daidzein and less necrotic cells on their roots. in addition, the defense genes failed to be evoked by nifa mutant at the early nodulation stage. these findings indicated that host defense response was one of the mechanisms mediated by nifa gene to regulate nodule formation during symbiosis. even though nifa mutant could increase the number of nodules in host plant, it synthesized lower nod factors than wild type. this suggested that nifa gene mediated multiple and diverse instances in nodulation formation.
WOS关键词ROOT-NODULE DEVELOPMENT ; SIGNAL EXCHANGE ; RHIZOBIUM ; ALFALFA ; MUTANTS ; INFECTION ; PATHOGENS ; DEATH
WOS研究方向Science & Technology - Other Topics
WOS类目Multidisciplinary Sciences
语种英语
WOS记录号WOS:000250463400009
出版者SCIENCE CHINA PRESS
URI标识http://www.irgrid.ac.cn/handle/1471x/2380123
专题中国科学院大学
通讯作者Yu GuanQiao
作者单位1.Chinese Acad Sci, Shanghai Inst Biol Sci, Shanghai Inst Plant Physiol & Ecol, Natl Lab Plant Mol Genet, Shanghai 200032, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
3.CUNY Herbert H Lehman Coll, Dept Biol Sci, Bronx, NY 10468 USA
推荐引用方式
GB/T 7714
Chen XiaoTao,Zou HuaSong,Yao ZhenHua,et al. Sinorhizobium meliloti nifa gene exerts a pleiotropic effect on nodulation through the enhanced plant defense response[J]. Chinese science bulletin,2007,52(21):2925-2929.
APA Chen XiaoTao.,Zou HuaSong.,Yao ZhenHua.,Cheng HaiPing.,Dai XiaoMi.,...&Yu GuanQiao.(2007).Sinorhizobium meliloti nifa gene exerts a pleiotropic effect on nodulation through the enhanced plant defense response.Chinese science bulletin,52(21),2925-2929.
MLA Chen XiaoTao,et al."Sinorhizobium meliloti nifa gene exerts a pleiotropic effect on nodulation through the enhanced plant defense response".Chinese science bulletin 52.21(2007):2925-2929.

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来源:中国科学院大学

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