Paddy seeds bacterization with ACC deaminase producing endophyte SSP8 regulates physiology, leaves gas exchange parameters, PSII photochemistry and antioxidant enzymes metabolism in NaCl stressed seedlings.

The endophytic microbes play crucial roles to crop development under stress environmental conditions. In this research, 36 endophytic bacterial strains having diverse morphology were isolated from exotic wild plant . The strain SSP8 was selected for experimental study as it efficiently tolerate NaCl (0-1200 mM), produced Indole-3-acetic acid (IAA) (46 μg mL) and 1-amino-1-cyclopropane-1-carboxylate (ACC) deaminase (176.

Elaborating the multifarious role of PGPB for sustainable food security under changing climate conditions.

Changing climate creates a challenge to agricultural sustainability and food security by changing patterns of parameters like increased UV radiation, rising temperature, altered precipitation patterns, and higher occurrence of extreme weather incidents. Plants are vulnerable to different abiotic stresses such as waterlogging, salinity, heat, cold, and drought in their natural environments. The prevailing agricultural management practices play a major role in the alteration of the Earth's climate by causing biodiversity loss, soil degradation through chemical and physical degradation, and pollution of water bodies.

Prospective of Indole-3-Acteic Acid (IAA) and Endophytic Microbe Bacillus subtilis Strain SSA4 in Paddy Seedlings Development and Ascorbate-Glutathione (AsA-GSH) Cycle Regulation to Mitigate NaCl Toxicity.

Plant growth promoting endophytes significantly affected plant health. The present study demonstrates effect of endophytic isolate Bacillus subtilis strain SSA4 and exogenous Indole-3-acetic acid (IAA) on paddy seedlings growth parameters, photosynthetic pigments, photosynthesis, leaf gas exchange parameters, respiration, oxidative stress biomarkers and Ascorbate-Glutathione (AsA-GSH) cycle under different NaCl (0-300 mM) stresses. The Bacillus subtilis SSA4 was identified by 16S r-RNA gene sequence analyses and NCBI BLASTn tools.