Jasmonic acid and ethylene signaling pathways participate in the defense response of Chinese cabbage to Pectobacterium carotovorum infection

CHEN Chang-long; YUAN Fang; LI Xiao-ying; MA Rong-cai; XIE Hua

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Jasmonic acid and ethylene signaling pathways participate in the defense response of Chinese cabbage to Pectobacterium carotovorum infection

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Chinese cabbage(Brassica rapa subsp.pekinensis)suffers from soft rot disease caused by Pectobacterium carotovorum(Pc).To uncover the mechanisms underlying the defense response of Chinese cabbage to Pc,we constructed a suppression subtractive hybridization(SSH)library from Pc-infected cabbage and obtained 1919 non-redundant expressed sequence tags(ESTs),which were used for cDNA microarray.We detected 800 differentially expressed genes(DEGs)in cabbage at different time points post-Pc inoculation,which were further confirmed by quantitative real-time PCR.One quarter of these DEGs were involved in the biotic stress pathways visualized by MapMan.Among them,8,8,1,3,and 2 DEGs were related to jasmonic acid(JA),ethylene(ET),JA+ET,auxin,and abscisic acid(ABA)signaling pathways,respectively,while no DEG was detected for salicylic acid(SA)signaling.Assessment of phytohormone production in the Pc-infected leaves showed that JA and ET production was increased,while SA production was decreased.Treatment with JA,methyl jasmonate(MeJA),the ET precursor 1-aminocyclopropane-1-carboxylate(ACC),or combinations thereof,reduced the disease severity,and the JA and JA+ACC treatments were superior and performed equally well.Our findings suggest that JA and ET may act synergistically against Pc infection in Chinese cabbage,and JA-mediated signaling might be the most significant.

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《农业科学学报（英文版）》 |2021年第5期|1314-1326|共13页
作者
CHEN Chang-long; YUAN Fang; LI Xiao-ying; MA Rong-cai; XIE Hua;
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Beijing Agro-Biotechnology Research Center Beijing Academy of Agriculture and Forestry Sciences Beijing 100097 P.R.China 2Beijing Key Laboratory of Agricultural Genetic Resources and Biotechnology Beijing 100097 P.R.China;

Beijing Agro-Biotechnology Research Center Beijing Academy of Agriculture and Forestry Sciences Beijing 100097 P.R.China;

Beijing Agro-Biotechnology Research Center Beijing Academy of Agriculture and Forestry Sciences Beijing 100097 P.R.China 2Beijing Key Laboratory of Agricultural Genetic Resources and Biotechnology Beijing 100097 P.R.China;

Beijing Agro-Biotechnology Research Center Beijing Academy of Agriculture and Forestry Sciences Beijing 100097 P.R.China 2Beijing Key Laboratory of Agricultural Genetic Resources and Biotechnology Beijing 100097 P.R.China;

Beijing Agro-Biotechnology Research Center Beijing Academy of Agriculture and Forestry Sciences Beijing 100097 P.R.China;

Beijing Agro-Biotechnology Research Center Beijing Academy of Agriculture and Forestry Sciences Beijing 100097 P.R.China 2Beijing Key Laboratory of Agricultural Genetic Resources and Biotechnology Beijing 100097 P.R.China;

Beijing Agro-Biotechnology Research Center Beijing Academy of Agriculture and Forestry Sciences Beijing 100097 P.R.China;

Beijing Agro-Biotechnology Research Center Beijing Academy of Agriculture and Forestry Sciences Beijing 100097 P.R.China 2Beijing Key Laboratory of Agricultural Genetic Resources and Biotechnology Beijing 100097 P.R.China;

Beijing Agro-Biotechnology Research Center Beijing Academy of Agriculture and Forestry Sciences Beijing 100097 P.R.China;

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Jasmonic acid and ethylene signaling pathways participate in the defense response of Chinese cabbage to Pectobacterium carotovorum infection

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