MEI LAN#, JINGFENG HU#, HONGLI YANG, LIQIN ZHANG, XUEZHONG XU, JIANGMING HE*
BIOCELL, Vol.44, No.4, pp. 751-767, 2020, DOI:10.32604/biocell.2020.012954
Abstract Clubroot of Chinese cabbage (Brassica rapa L. ssp. pekinensis), caused by the obligate parasite Plasmodiophora
brassicae, accounts for serious yield losses. The aim of our study was to explore the phytohormone levels and metabolome
changes in the roots of resistant and susceptible B. rapa genotypes at a late stage of infection, i.e., 28 days post-infection.
Both genotypes showed decreased auxin levels after P. brassicae infection except for indole-3-acetic acid. Overall, the
susceptible genotype had higher auxin and cytokinin levels after infection, with the exception of trans-zeatin and 3-
indolebutyric acid as compared to the resistant genotype. Jasmonic acid levels declined… More >
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