Author
Listed:
- Jeongyun Choi
(Department of Environmental and Biological Chemistry, Chungbuk National University, Cheongju 28644, Korea
These authors have contributed equally to this work.)
- Aritra Roy Choudhury
(Department of Environmental and Biological Chemistry, Chungbuk National University, Cheongju 28644, Korea
Bio-Evaluation Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Korea
These authors have contributed equally to this work.)
- Song-Yi Park
(Division of Animal, Horticultural and Food Sciences, Chungbuk National University, Cheongju 28644, Korea
Brain Korea 21, Center for Bio-Health Industry, Chungbuk National University, Cheongju 28644, Korea)
- Myung-Min Oh
(Division of Animal, Horticultural and Food Sciences, Chungbuk National University, Cheongju 28644, Korea
Brain Korea 21, Center for Bio-Health Industry, Chungbuk National University, Cheongju 28644, Korea)
- Tongmin Sa
(Department of Environmental and Biological Chemistry, Chungbuk National University, Cheongju 28644, Korea
The Korean Academy of Science and Technology, Seongnam 13630, Korea)
Abstract
UV-B radiation and high temperature have detrimental effects on plant physiological and biochemical processes. The use of bacterial inoculants for stress alleviation has been regarded as a sustainable and eco-friendly approach. Hence, this study was conducted to evaluate the ability of 1-aminocyclopropane-1-caboxylate (ACC) deaminase-producing Brevibacterium linens RS16 in enhancing stress tolerance in rice against combined UV-B radiation and heat stresses. A combination of 0.5 Wm −2 UV-B radiation and 40 °C of temperature were imposed on rice plants for 5 days. The plants imposed with combined stress had shown significantly higher ethylene emissions compared to the plants grown under normal conditions. In addition, the stress imposition had shown negative effects on the photosynthetic traits, biomass, and genetic material of rice plants. The inoculation of bacteria had shown a 26.5% and 31.8% decrease in ethylene emissions at 3 and 4 days of stress imposition compared to the non-inoculated plants. Additionally, bacterial inoculation had also enhanced plant biomass and photosynthetic traits, and had proved to be effective in restricting DNA damage under stress conditions. Taken together, the current study has shown the effective strategy of enhancing stress tolerance against the interactive effects of UV-B radiation and heat stresses by regulation of ethylene emissions through inoculating ACC deaminase-producing bacteria.
Suggested Citation
Jeongyun Choi & Aritra Roy Choudhury & Song-Yi Park & Myung-Min Oh & Tongmin Sa, 2021.
"Inoculation of ACC Deaminase-Producing Brevibacterium linens RS16 Enhances Tolerance against Combined UV-B Radiation and Heat Stresses in Rice ( Oryza sativa L.),"
Sustainability, MDPI, vol. 13(18), pages 1-8, September.
Handle:
RePEc:gam:jsusta:v:13:y:2021:i:18:p:10013-:d:630578
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