期刊
JOURNAL OF PLANT RESEARCH
卷 132, 期 2, 页码 285-293出版社
SPRINGER JAPAN KK
DOI: 10.1007/s10265-019-01094-x
关键词
Tea; (Z)-3-Hexenol; Jasmonic acid; RNA-Seq; Ectropis obliqua; Defense-related genes
资金
- Special Fund for Agro-scientific Research in the Public Interest [201403030]
- Central Public-interest Scientific Institution Basal Research Fund [1610212016019]
- National Natural Science Foundation of China [31401758]
- Science and Technology Program of Zhejiang Province [2016C32026]
Green leaf volatiles (GLVs) play a vital role in enhancing herbivore-associated defense responses, but the mechanism by which they precisely regulate such responses is not well understood. (Z)-3-Hexenol (z3HOL), an important component of GLVs, effectively activates the defense of tea plants (Camellia sinensis) against a tea geometrid (TG) Ectropis obliqua Prout. To elucidate the molecular mechanisms of defense activation by z3HOL, RNA-Sequencing was employed to investigate the effect of z3HOL on transcriptome responses to TG in tea plants. A total of 318 upregulated genes were identified, and expression of 10 unigenes was validated by quantitative real-time PCR. Among these 318 upregulated genes, 56 were defense-related, including 6 key enzyme genes in jasmonic acid, and ethylene biosynthesis, 24 signal transduction genes, and 12 insect-responsive transcription factors. Most of the defense-related genes are induced by JA, TG, or wounding treatments, suggesting that JA signaling plays a vital role in z3HOL-induced tea defense against TG.
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