Accumulation of compatible solutes in rice (Oryza sativa L.) cultivars by inoculation of endophytic plant growth promoting bacteria to alleviate salt stress

Abstract Salinization of agricultural lands, particularly rice paddies, results in the drastic decline crop yields. Soil salinization impacts plant physiology by inducing salt stress which may leads to osmotic stress, ionic and water-related nutrient imbalance. These imbalances necessitate need for plants produce osmolytes including proline glycine betaine. This study aimed elucidate dynamic changes betaine accumulation modulated inoculation Brevibacterium linens RS16 salt-sensitive moderately salt-tolerant under conditions. showed interaction four major factors genotypes with differing tolerance length exposure level effects inoculation. Salt resulted significant reduction growth parameters genotype (IR29) having a more reduction. Both increased total at 3 days 10 after subjecting 50 mM 150 A increase was observed Inoculation B. improvement both genotypes, accumulation, especially IR29. that are compatible mediated through plants.