Argon non-thermal plasma treatment promotes the development of rice (Oryza sativa L.) in saline alkali environments

Soil salinization leads to a reduction in arable land area, which seriously endangers food security. Developing saline-alkali land has become a key measure to address the contradiction between population growth and limited arable land. Rice is the most important global food crop, feeding half of the...

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Bibliographic Details
Published in:Protoplasma 2024-09, Vol.261 (5), p.927-936
Main Authors: Liu, Kai, Feng, Yan-Jiang, Guo, Jun-Xiang, Wang, Gui-Ling, Shan, Li-Li, Gao, Shi-Wei, Liu, Qing, Sun, Hu-Nan, Li, Xi-Yu, Sun, Xing-Rong, Bian, Jing-Yang, Kwon, Taeho
Format: Article
Language:English
Subjects:
Agricultural land
arable soils
Argon
Biomedical and Life Sciences
catalase
Cell Biology
chitinase
Enzyme inhibitors
food crops
Food security
Germination
Life Sciences
nonthermal processing
Original Article
Oryza sativa
Plant Sciences
Population growth
Rice
Saline soils
Salt
soil salinization
xylanases
Zoology
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Summary:Soil salinization leads to a reduction in arable land area, which seriously endangers food security. Developing saline-alkali land has become a key measure to address the contradiction between population growth and limited arable land. Rice is the most important global food crop, feeding half of the world’s population and making it a suitable choice for planting on saline-alkali lands. The traditional salt–alkali improvement method has several drawbacks. Currently, non-thermal plasma (NTP) technology is being increasingly applied in agriculture. However, there are few reports on the cultivation of salt/alkali-tolerant rice. Under alkaline stress, argon NTP treatment significantly increased the germination rate of Longdao 5 (LD5) rice seeds. In addition, at 15 kV and 120 s, NTP treatment significantly increased the activity of antioxidant enzymes such as catalase and SOD. NTP treatment induced changes in genes related to salt-alkali stress in rice seedlings, such as chitinase and xylanase inhibitor proteins, which increased the tolerance of the seeds to salt-alkali stress. This experiment has expanded the application scope of NTP in agriculture, providing a more cost-effective, less harmful, and faster method for developing salt-alkali-tolerant rice and laying a theoretical foundation for cultivating NTP-enhanced salt-alkali-tolerant rice.
ISSN:0033-183X
1615-6102
1615-6102
DOI:10.1007/s00709-024-01946-x