12 个州的根瘤菌血清群和氢化酶表型分布。
Rhizobium japonicum Serogroup and Hydrogenase Phenotype Distribution in 12 States.
机构信息
Nitrogen Fixation and Soybean Genetics Laboratory, U.S. Department of Agriculture Agricultural Research Service, Beltsville, Maryland 20705, and Plant Growth Laboratory and Department of Agronomy and Range Sciences, University of California, Davis, California 95616.
出版信息
Appl Environ Microbiol. 1984 Apr;47(4):613-5. doi: 10.1128/aem.47.4.613-615.1984.
A survey was conducted in 1980 on 972 isolates of Rhizobium japonicum obtained from 65 soybean field locations in 12 states. Isolates were examined for the hydrogenase (Hup) phenotype and somatic serogroup identity. Only 20% of the isolates were Hup, with a majority of Hup isolates occurring in 10 of the 12 states. The most predominant serogroup was 31 (21.5%), followed by 123 (13.6%). Although most serogroups contained a majority of Hup isolates, marked differences occurred. None of the isolates in serogroup 135 were Hup, but 93% of the isolates in serogroup 122 were Hup. The serogroups with relatively high frequencies of Hup isolates (122 and 110) constitute only a small part (<5% each) of the R. japonicum field population in the 12 states.
1980 年，对从 12 个州的 65 个大豆田地点获得的 972 株根瘤菌（Rhizobium japonicum）分离株进行了调查。对分离株的氢化酶（Hup）表型和体细胞血清群同一性进行了检查。只有 20%的分离株是 Hup，其中大多数 Hup 分离株出现在 12 个州中的 10 个州。最主要的血清群是 31 型（21.5%），其次是 123 型（13.6%）。尽管大多数血清群包含大多数 Hup 分离株，但存在明显差异。血清群 135 中的分离株均非 Hup，但血清群 122 中的分离株中有 93%是 Hup。Hup 分离株频率相对较高的血清群（122 和 110）仅构成 12 个州中根瘤菌田间种群的一小部分（<5%）。
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