Amelioration of Drought Stress Adverse Effect and Mediating Biochemical Content of Cabbage Seedlings by Plant Growth Promoting Rhizobacteria

Abstract

To cite this paper: Samancioglu, A., E. Yildirim, M. Turan, R. Kotan, U. Sahin and R. Kul, 2016 AbstractThe goals of the study were to investigate the role of plant growth promoting rhizobacteria (PGPR) (Bacillus megaterium TV-6D, Bacillus megaterium TV-20E, Peanibacillus polymyxa KIN-37, and combination of Bacillus megaterium TV-6D +Pantoea agglomerans RK-92+Brevibacillus choshiensis TV-53D) in alleviating the harmfull effects of drought stress in cabbage seedlings grown under different irrigation levels. For this popuse, a pot experiment was undertaken to determine the beneficial effect of PGPR on growth and physiological and biochemical properties of cabbage seedlings grown under various irrigation levels (I1, I2, I3 and I4) which was determined considering different ratios (100, 75, 50 and 25%) of evaporated water from the reduced pan. Experimental data showed an increase in growth parameters in PGPR treated plants when compared to untreated plants under stressed conditions. TV-6D and TV-6D+RK-92+TV-53D strains were found to mitigate drought stress tolerance in cabbage plants by accumulating antioxidant enzymes, osmolytes, hormone production, and decreased electrolyte leakage in PGPR treated plants under water deficit conditions.

Application of Trichoderma viride and Pseudomonas fluorescens to Cabbage (Brassica oleracea L.) Improves Both Its Seedling Quality and Field Performance

“…As per the findings of Marulanda et al [37], these microbial treatments may also help to enhance the levels of IAA growth regulators, which also contribute to improvised seedling growth parameters, including root and shoot fresh weight and leaf area [38]. Further, the infusion of vermicompost with T. harzianum in cabbage greatly enhanced the seedling's establishment rate [39].…”

Improving salt tolerance of bean (Phaseolus vulgaris L.) with hydrogen sulfide

“…Conversely, ABA content was elevated by increased NaCl concentration. Similarly, it has been also reported that the amount of ABA increased in plants grown under abiotic stress conditions, but the amount of IAA and GA decreased (Samancioglu et al 2016). It has been understood that IAA shows a response mechanism in agricultural plants under salt stress.…”

Enhancing Water Status and Nutrient Uptake in Drought-Stressed Lettuce Plants (Lactuca sativa L.) via Inoculation with Different Bacillus spp. Isolated from the Atacama Desert

“…The strain ATMLC22021 was grouped within the clade of B. megaterium . This species has extensively been studied [ 31 , 32 , 33 , 34 , 35 ]. In genome analysis, it was reported to possess multiple genes that contribute to plant growth under drought conditions, such as genes related to IAA synthesis, P-solubilization, siderophore and volatile organic compound production, and the synthesis of osmoprotectants such as trehalose, glycine/betaine, and spermidine.…”