Infestation of Ectropis obliqua Affects the Catechin Metabolism in Tea Plants

RAN Wei; ZHANG Jin; ZHANG Xin; LIN Songbo; SUN Xiaoling

doi:10.13305/j.cnki.jts.2018.02.003

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Journal of Tea Science ›› 2018, Vol. 38 ›› Issue (2) : 133-139. DOI: 10.13305/j.cnki.jts.2018.02.003

Infestation of Ectropis obliqua Affects the Catechin Metabolism in Tea Plants

RAN Wei^1,2, ZHANG Jin^1,2, ZHANG Xin^1,2, LIN Songbo^1,2, SUN Xiaoling^1,2,*

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Abstract

In this study, the effect of feeding by Ectropis obliqua on the catechin pathway of tea plant was analyzed. The transcriptional levels of catechin-related genes and the contents of individual catechins in the infested or intact leaves were measured. The transcriptional level of CsANR in the infested leaves was significantly higher than that in the intact leaves 3, 6βh and 12βh after infestation. Meanwhile, the infestation of E. obliqua also significantly induced the expression level of CsLAR after 6βh and 12βh. The contents of gallic acid, gallocatechin, epicatechin, epigallocatechin gallate and epicatechin gallate were significantly induced 24βh after infestation. Moreover, the contents of gallic acid and gallocatechin were also significantly induced 48βh after infestation. However, the infestation of E. obliqua didn’t induce the increases of catechin, epigallocatechin and gallocatechin gallate. In a word, the infestation of E. obliqua affected catechin metabolism in tea plant.

Key words

Camellia sinensis / Ectropis obliqua / catechins / induced / infestation

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RAN Wei, ZHANG Jin, ZHANG Xin, LIN Songbo, SUN Xiaoling. Infestation of Ectropis obliqua Affects the Catechin Metabolism in Tea Plants[J]. Journal of Tea Science. 2018, 38(2): 133-139 https://doi.org/10.13305/j.cnki.jts.2018.02.003

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