Effects of Bacillus subtilis on Cadmium Accumulation and Physiological Characters of Peanut
Fan Zhongxue
Li Xiaoqing
Meng Jingjing
Zhang Jialei
Guo Feng
Chen Hu
Wan Shubo
Abstract：The pot experiment was carried out to study the effects of applying different concentrations of Bacillus subtilis on the physiological and plant characters,and cadmium content in seeds under mild cadmium stress.The results showed that applying Bacillus subtilis could improve the leaf chlorophyll content and root ac-tivity,reduce relative conductivity in leaves of peanut at seedling stage,flowering stage and mature stage.Ap-plying 2 g/kg and 4 g/kg Bacillus subtilis could both significantly increase the SOD and POD activities,signifi-cantly reduce the MDA content in leaves at different growth periods.Applying 1 g/kg and 2 g/kg Bacillus sub-tilis could obviously improve stem height,lateral branch length,plant fresh weight,fruit weight per plant and plump rate,significantly reduce the cadmium accumulation in seeds.This study showed that applying 2 g/kg Bacillus subtilis had the best effects of relieving mild cadmium stress on peanut.The chlorophyll content and root activity were significantly increased,the damage of cadmium stress on cytomembrane was decreased,the fruit weight per plant and plump rate were significantly increased,and the cadmium accumulation in seeds was decreased by 25 .37%.
Keywords：PeanutBacillus subtilisCd stressPhysiological charactersYield
Publication Date：2014-03-02
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：5( 17-20,24 )