A Motility Revertant of the ndvB Mutant of Bradyrhizobium japonicum

被引：0

作者：

Rongji Chen

Arvind A. Bhagwat

Donald L. Keister

机构：

[1] Soybean Genomics and Improvement Laboratory,

[2] Beltsville Agricultural Research Center,undefined

[3] Agricultural Research Service,undefined

[4] United States Department of Agriculture,undefined

[5] Building 002,undefined

[6] BARC-West,undefined

[7] Beltsville,undefined

[8] MD 20705,undefined

[9] Produce Quality and Safety Laboratory,undefined

[10] Beltsville Agricultural Research Center,undefined

[11] Agricultural Research Service,undefined

[12] United States Department of Agriculture,undefined

[13] Building 002,undefined

[14] BARC-West,undefined

[15] Beltsville,undefined

[16] MD 20705,undefined

来源：

Current Microbiology | 2003年 / 47卷

关键词：

Defense Response; Plant Defense; Plant Defense Response; Bradyrhizobium Japonicum; Effective Symbiosis;

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暂无

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学科分类号：

摘要：

A motility revertant of a Bradyrhizobium japonicum ndvB mutant was isolated and characterized. The ndvB mutants of B. japonicum have been reported to be osmotically sensitive, as well as defective in motility, periplasmic cyclic β-(1→3), (1→6)-D-glucan synthesis, and symbiosis with soybean. The motility revertant was restored for osmotic tolerance but not for cyclic β-glucan production or effective symbiosis. These results support our hypothesis that cyclic β-glucans have an important role in symbiosis—the suppression of a plant defense response—in addition to their role in periplasmic osmoprotection.

引用

页码：431 / 433

页数：2