NaPDR1 and NaPDR1-like are essential for the resistance of Nicotiana attenuata against fungal pathogen Alternaria alternata.

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	NaPDR1 and NaPDR1-like are essential for the resistance of Nicotiana attenuata against fungal pathogen Alternaria alternata.
	Xu, Zhen; Song, Na; Ma, Lan; Fang, Dunhuang; Wu, Jinsong
	2018
发表期刊	Plant diversity
ISSN	2468-2659
卷号	40 期号:2 页码:68-73
摘要	Pleiotropic drug resistance (PDR) transporters are widely distributed membrane proteins catalyzing the export or import of a diverse array of molecules, and are involved in many plant responses to biotic and abiotic stresses. However, it is unclear whether PDRs are involved in Nicotiana attenuata resistance to the necrotic fungal pathogen Alternaria alternata. In this study, transcriptional levels of both NaPDR1 and NaPDR1-like were highly induced in N.attenuata leaves after A.alternata inoculation. Interestingly, silencing NaPDR1 or NaPDR1-like individually had little effect on N.attenuata resistance to A.alternata; however, when both genes were co-silenced plants became highly susceptible to the fungus, which was associated with elevated JA and ethylene responses. Neither NaPDR1 nor NaPDR1-like was significantly elicited by exogenous treatment with methyl jasmonate (MeJA), whereas both were highly induced by ethylene. The elicitation levels of both genes by A.alternata were significantly reduced in plants with impaired JA or ethylene signaling pathways. Thus, we conclude that both NaPDR1 and NaPDR1-like function redundantly to confer resistance against A. alternata in N.attenuata, and the elicitation of the transcripts of both genes by the fungus is partially dependent on ethylene and jasmonate signaling.
语种	英语
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/64817
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Xu, Zhen,Song, Na,Ma, Lan,et al. NaPDR1 and NaPDR1-like are essential for the resistance of Nicotiana attenuata against fungal pathogen Alternaria alternata.[J]. Plant diversity,2018,40(2):68-73.
APA	Xu, Zhen,Song, Na,Ma, Lan,Fang, Dunhuang,&Wu, Jinsong.(2018).NaPDR1 and NaPDR1-like are essential for the resistance of Nicotiana attenuata against fungal pathogen Alternaria alternata..Plant diversity,40(2),68-73.
MLA	Xu, Zhen,et al."NaPDR1 and NaPDR1-like are essential for the resistance of Nicotiana attenuata against fungal pathogen Alternaria alternata.".Plant diversity 40.2(2018):68-73.