The abstract is read at the publisher; the summary is JClub's.
Rhizobium sp. HM13 reduces rhizosphere bioavailable cadmium and cuts peanut seed Cd accumulation by 49.9% in field trials, while sustaining symbiotic nitrogen fixation.
- Why it matters: Cadmium threatens peanut production and SNF, but how nitrate levels regulate Cd translocation and defense in the rhizobia-root-nodule system is unclear.
- What they did: Field and pot trials tested HM13 under N- and N+ conditions, with rhizosphere sequencing to profile microbiome assembly and pot experiments measuring nitrogenase activity and nodule senescence.
- The result: Under N+ HM13, Cd stress linked to reduced nitrogenase activity and nitrate-induced premature nodule senescence, increasing pod Cd; under N- it strengthened the root-nodule Cd-exclusion barrier and reduced pod Cd by 38.6–41.8%.
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.