Potential Function of 4-coumaric Acid-CoA Ligase in Response to Soybean Cyst Nematode Stress

doi:10.13560/j.cnki.biotech.bull.1985.2021-0378

Abstract

Abstract:

Soybean cyst nematode（SCN,Heterodera glycines）is one of the important targets of pest control strategies in soybean production areas. The prevention and control of SCN has always been one of the hot spots in the field of nematodes. SCN infection not only damage the underground part of soybean plant,but also damage the above ground part and thus affects soybean yield. Therefore,it is necessary to analyze the SCN resistance mechanism in order to achieve the purpose of prevention and control. That SCN successfully parasitizes host plants requires degradation and fusion of its cell wall to form a syncytium that provides the only source of nutrients for its growth and development. The cell wall resistance that hinders the movement of SCN and the establishment of syncytia is the key for soybean to resist SCN,while lignin is an important component of cell wall resistance. The biosynthesis of lignin mainly includes shikimic acid metabolic pathway,phenylpropane metabolic pathways,and specific pathways for lignin synthesis,4-coumarate-coenzyme A ligase（4CL）,as an important turning enzyme connecting the phenylpropane metabolic pathway and lignin-specific synthesis pathway,determines the synthesis of lignin,which may be an important regulatory factor in response to SCN stress. This article starts from the nematode invasion that requires cell wall degradation and fusion to establish syncytium,discusses the cell wall resistance caused by lignin,analyzes the response mechanism of 4CL in cell wall resistance,and provides a scientific basis for further exploring the SCN stress mechanism.

Key words: soybean cyst nematode, syncytium, lignin, cell wall, 4 coumaric acid-CoA ligase

WANG Hui, ZHANG Shun-bin, JIN He, WANG Han, ZHANG Geng-hua, XIA Shi-ning, CHEN Jing-sheng, DUAN Yu-xi. Potential Function of 4-coumaric Acid-CoA Ligase in Response to Soybean Cyst Nematode Stress[J]. Biotechnology Bulletin, 2021, 37(7): 71-80.

Figures/Tables 1

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