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Biology (Basel)

Title:		Infestation by the Piercing-Sucking Herbivore Nilaparvata lugens Systemically Triggers JA- and SA-Dependent Defense Responses in Rice
Author(s):		Li H; Xu L; Wu W; Peng W; Lou Y; Lu J;
Address:		"State Key Laboratory of Rice Biology & Ministry of Agriculture Key Lab of Agricultural Entomology, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China"
Journal Title:		Biology (Basel)
Year:		2023
Volume:		20230605
Issue:		6
Page Number:		-
DOI:		10.3390/biology12060820
ISSN/ISBN:		2079-7737 (Print) 2079-7737 (Electronic) 2079-7737 (Linking)
Abstract:		"It has been well documented that an infestation of the piercing-sucking herbivore, brown planthopper (BPH), Nilaparvata lugens, activates strong local defenses in rice. However, whether a BPH infestation elicits systemic responses in rice remains largely unknown. In this study, we investigated BPH-induced systemic defenses by detecting the change in expression levels of 12 JA- and/or SA-signaling-responsive marker genes in different rice tissues upon a BPH attack. We found that an infestation of gravid BPH females on rice leaf sheaths significantly increased the local transcript level of all 12 marker genes tested except OsVSP, whose expression was induced only weakly at a later stage of the BPH infestation. Moreover, an infestation of gravid BPH females also systemically up-regulated the transcription levels of three JA-signaling-responsive genes (OsJAZ8, OsJAMyb, and OsPR3), one SA-signaling-responsive gene (OsWRKY62), and two JA- and SA- signaling-responsive genes (OsPR1a and OsPR10a). Our results demonstrate that an infestation of gravid BPH females systemically activates JA- and SA-dependent defenses in rice, which may in turn influence the composition and structure of the community in the rice ecosystem"
Keywords:		defense-related signaling pathway herbivore-induced plant defense local defense marker genes systemic defense;
Notes:		"PubMed-not-MEDLINELi, Heng Xu, Liping Wu, Weiping Peng, Weizheng Lou, Yonggen Lu, Jing eng CARS-01-43/China Agriculture Research Systems/ Switzerland 2023/06/28 Biology (Basel). 2023 Jun 5; 12(6):820. doi: 10.3390/biology12060820"