Study on osmoprotectant rhizobacteria to improve mung bean growth under drought stress

International Conference on Climate Change: Challenges and Opportunity on Environment Degradation Researches

地球科学;生态环境科学

Maryani, Y.^1,2 ; Sudadi^1 ; Dewi, W.S.^1 ; Yunus, A.^1

Doctoral Program in Agricultural Science, Graduate School, Sebelas Maret University, Jl. Ir. Sutami 36A, Kentingan, Surakarta, Central Java

57126, Indonesia^1

Faculty of Agriculture, Universitas Sarjanawiyata Tamansiswa, Jl. Batikan No 06, Tahunan, Umbulharjo, Yogyakarta

55167, Indonesia^2

关键词: Air temperature;    Drought stress;    Dry seasons;    Field capacity;    Glycine betaine;    Osmoprotectants;    Rainy seasons;    Rhizobacteria;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/129/1/012014/pdf
DOI  :  10.1088/1755-1315/129/1/012014

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Climate change leads to irregular rainwater availability for crops and thus enhances drought stress. Furthermore, nowadays we face climate disadvantages such as long dry season, short rainy season and high air temperature caused by climate change. This research aimed at studying the ability of osmoprotectant rhizobacteria isolates to support mung bean growth under drought stress. The rhizobacteria were isolated from mung bean's rhizosphere. The results showed that isolates of strain Al24-k and Ver5-k produced glycine betaine 9.6306 mg g-1cell, 1.7667 x 107CFU g-1soil and 11.4870 mg g"1cell, 1.9667 x 107CFU g-1soil. The isolated rhizobacteria from mung bean's rhizosphere under field capacity of soil moisture produced glycine betaine 6.8000 mg g-1cell, 1.2556 x 107CFU g-1soil. Under 75% field capacity of soil moisture, isolates produced glycine betaine of 6.4059 mg g-1cell, 1.3111 x 107CFU g-1soil, while under 50% from field capacity, the isolates produced glycine betaine of 7.4108 mg g-1cell, 1.6667 x 107CFU g-1soil. The osmoprotectant rhizobacteria improved the resilience of mung bean to drought stress.