English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Sinorhizobium fredii  indigenous populations are prevalent in provinces of Central China whereas  Bradyrhizobium  species ( Bradyrhizobium japonicum ,  B. diazoefficiens ,  B. elkanii , and others) are more abundant in northern and southern provinces. The symbiotic properties of different soybean rhizobia have been investigated with 40 different wild soybean ( Glycine soja ) accessions from China, Japan, Russia, and South Korea. Bradyrhizobial strains nodulated all the wild soybeans tested, albeit efficiency of nitrogen fixation varied considerably among accessions. The symbiotic capacity of  S. fredii  HH103 with wild soybeans from Central China was clearly better than with the accessions found elsewhere.  S. fredii  NGR234, the rhizobial strain showing the broadest host range ever described, also formed nitrogen-fixing nodules with different  G. soja  accessions from Central China. To our knowledge, this is the first report describing an effective symbiosis between  S. fredii  NGR234 and  G. soja . Mobilization of the  S. fredii  HH103 symbiotic plasmid to a NGR234 pSym-cured derivative (strain NGR234C) yielded transconjugants that formed ineffective nodules with  G. max  cv. Williams 82 and  G. soja  accession CH4. By contrast, transfer of the symbiotic plasmid pNGR234a to a pSym - cured derivative of  S. fredii  USDA193 generated transconjugants that effectively nodulated  G. soja  accession CH4 but failed to nodulate with  G. max  cv. Williams 82. These results indicate that intra-specific transference of the  S. fredii  symbiotic plasmids generates new strains with unpredictable symbiotic properties, probably due to the occurrence of new combinations of symbiotic signals.

frontiers in microbiology

Sinorhizobium fredii Strains HH103 and NGR234 Form Nitrogen Fixing Nodules With Diverse Wild Soybeans (Glycine soja) From Central China but Are Ineffective on Northern China Accessions