Spore associated bacteria regulates maize root K⁺/Na⁺ ion homeostasis to promote salinity tolerance during arbuscular mycorrhizal symbiosis.

ABSTRACT:

Background

The interaction between arbuscular mycorrhizal fungi (AMF) and AMF spore associated bacteria (SAB) were previously found to improve mycorrhizal symbiotic efficiency under saline stress, however, the information about the molecular basis of this interaction remain unknown. Therefore, the present study aimed to investigate the response of maize plants to co-inoculation of AMF and SAB under salinity stress.

Results

The co-inoculation of AMF and SAB significantly improved plant dry weight, nutrient content of shoot and root tissues under 25 or 50 mM NaCl. Importantly, co-inoculation significantly reduced the accumulation of proline in shoots and Na⁺ in roots. Co-inoculated maize plants also exhibited high K⁺/Na⁺ ratios in roots at 25 m

SUBMITTER: Selvakumar G 

PROVIDER: S-EPMC5989414 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature