A Motility Revertant of the ndvB Mutant of Bradyrhizobium japonicum

被引：0
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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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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.
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页码：431 / 433
页数：2
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