Cold atmospheric plasmas(CAPs)have shown great applicability in agriculture.Many kinds of CAP sources have been studied in agricultural applications to promote plant growth and cure plant diseases.We briefly review the state-of-the-art stimulating effects of atmospheric-pressure dielectric-barrier-discharge(AP-DBD)plasmas,after the direct or indirect treatment of plants for growth promotion and disease control.We then discuss the special demands on the characteristics of the CAP sources for their applications in plant mutation breeding.An atmospheric and room temperature plasma(ARTP)jet generator with a large plasma irradiation area,a high enough concentration of chemically reactive species and a low gas temperature is designed for direct plant mutagenesis.Experimental measurements of the electrical,thermal and optical features of the ARTP generator are conducted.Then,an ARTP-P(ARTP for plant mutagenesis)mutation breeding machine is developed,and a typical case of plant mutation breeding by the ARTP-P mutation machine is presented using Coreopsis tinctoria Nutt.seeds.Physical and agricultural experiments show that the newly-developed ARTP-P mutation breeding machine with a large irradiation area can generate uniform CAP jets with high concentrations of chemically reactive species and mild gas temperatures,and have significant mutagenesis effects on the Coreopsis tinctoria Nutt.seeds.The ARTP-P mutation breeding machine may provide a platform for systematic studies on mutation mechanisms and results for various plant seeds under different operating conditions in future research.

Heping LI;Jing LI;Xiting ZHAO;Liyan WANG;Chuan FANG;Nan SU;Chong ZHANG;Yan XU;Meng LV;Mingjun LI;Xinhui XING

Department of Engineering Physics,Tsinghua University,Beijing 100084,People's Republic of China;College of Life Sciences,Henan Normal University,Xinxiang 453007,People's Republic of China;Biobreeding Research Center,Wuxi Research Institute of Applied Technologies,Tsinghua University,Wuxi 214072,People's Republic of China;MOE Key Laboratory of Industrial Biocatalysis,Department of Chemical Engineering,Tsinghua University,Beijing 100084,People's Republic of China;Center for Systems and Synthetic Biology,Tsinghua University,Beijing 100084,People's Republic of China;Institute of Biopharmaceutical and Health Engineering,Tsinghua Shenzhen International Graduate School,Shenzhen 518055,People's Republic of China

等离子体科学和技术（英文版）

[1]Heping LI;Jing LI;Xiting ZHAO;Liyan WANG;Chuan FANG;Nan SU;Chong ZHANG;Yan XU;Meng LV;Mingjun LI;Xinhui XING-.Applications of cold atmospheric plasmas(CAPs)in agriculture:a brief review and the novel development of a radio-frequency CAP jet generator for plant mutation)[J].等离子体科学和技术（英文版）,2022(09):1-14

Nutt

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