植物学报(英文版)2024,Vol.66Issue(1) :143-159.DOI:10.1111/jipb.13586

Trade-offs between the accumulation of cuticular wax and jasmonic acid-mediated herbivory resistance in maize

Jiong Liu Lu Li Zhilong Xiong Christelle A.M.Robert Baozhu Li Shan He Wenjie Chen Jiasheng Bi Guanqing Zhai Siyi Guo Hui Zhang Jieping Li Shutang Zhou Xi Zhang Chun-Peng Song
植物学报(英文版)2024,Vol.66Issue(1) :143-159.DOI:10.1111/jipb.13586

Trade-offs between the accumulation of cuticular wax and jasmonic acid-mediated herbivory resistance in maize

Jiong Liu 1Lu Li 2Zhilong Xiong 3Christelle A.M.Robert 4Baozhu Li 5Shan He 2Wenjie Chen 2Jiasheng Bi 2Guanqing Zhai 3Siyi Guo 5Hui Zhang 1Jieping Li 1Shutang Zhou 3Xi Zhang 3Chun-Peng Song5
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作者信息

  • 1. School of Life Sciences,Henan University,Kaifeng 475004,China;State Key Laboratory of Crop Stress Adaptation and Improvement,Henan University,Kaifeng 475004,China
  • 2. School of Life Sciences,Henan University,Kaifeng 475004,China;State Key Laboratory of Cotton Bio-Breeding and Integrated Utilization,Henan University,Kaifeng 475004,China
  • 3. School of Life Sciences,Henan University,Kaifeng 475004,China;State Key Laboratory of Cotton Bio-Breeding and Integrated Utilization,Henan University,Kaifeng 475004,China;Sanya Institute of Henan University,Sanya 572025,China
  • 4. Institute of Plant Sciences,University of Bern,Bern 3013,Switzerland
  • 5. School of Life Sciences,Henan University,Kaifeng 475004,China;State Key Laboratory of Crop Stress Adaptation and Improvement,Henan University,Kaifeng 475004,China;Sanya Institute of Henan University,Sanya 572025,China
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Abstract

Plants have evolved complex physical and chemical defense systems that allow them to withstand herbivory infestation.Composed of a complex mixture of very-long-chain fatty acids(VLCFAs)and their derivatives,cuticular wax constitutes the first physical line of defense against herbivores.Here,we report the function of Glossy 8(ZmGL8),which encodes a 3-ketoacyl reductase belonging to the fatty acid elongase complex,in orchestrating wax production and jasmonic acid(JA)-mediated defenses against herbivores in maize(Zea mays).The mutation of GL8 enhanced chemical defenses by activating the JA-dependent pathway.We observed a trade-off between wax accumulation and JA levels across maize glossy mutants and 24 globally collected maize inbred lines.In addition,we demonstrated that mutants defective in cu-ticular wax biosynthesis in Arabidopsis thaliana and maize exhibit enhanced chemical defenses.Comprehensive transcriptomic and lipidomic anal-yses indicated that the gl8 mutant confers chemical resistance to herbivores by remodeling VLCFA-related lipid metabolism and subsequent JA bio-synthesis and signaling.These results suggest that VLCFA-related lipid metabolism has a critical role in regulating the trade-offs between cuticular wax and JA-mediated chemical defenses.

Key words

cuticular wax/fall armyworm/herbivore resistance/jasmonic acid/maize/plant-herbivore interactions

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基金项目

National science Foundation of China to Chun-Peng Song(U21A20206)

National Natural Science Foundation of China(32102187)

Hainan Province Joint Cultivation Project(2021JJLH0014)

Project of Sanya Yazhou Bay Science and Technology City(SCKJ-JYRC-2022-78)

Program for Innovative Research Team(in Science and Technology)in the University of Henan Province(21IRTSTHN019)

Program of Introducing Talents of Discipline to Universities 111 Project(number D16014)

Henan Province Key Research and Development Project(221111112200)

出版年

2024
植物学报(英文版)
中国植物学会

植物学报(英文版)

CSTPCDCSCD
影响因子:0.921
ISSN:1672-9072
参考文献量80
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