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Plant Physiol

Title:		A conserved protein disulfide isomerase enhances plant resistance against herbivores
Author(s):		Cui JR; Bing XL; Tang YJ; Liu F; Ren L; Zhou JY; Liu HH; Wang MK; Hoffmann AA; Hong XY;
Address:		"College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China. School of BioSciences, Bio21 Institute, The University of Melbourne, Parkville, VIC 3010, Australia"
Journal Title:		Plant Physiol
Year:		2023
Volume:		191
Issue:		1
Page Number:		660 - 678
DOI:		10.1093/plphys/kiac489
ISSN/ISBN:		1532-2548 (Electronic) 0032-0889 (Print) 0032-0889 (Linking)
Abstract:		"Herbivore-associated molecular patterns (HAMPs) enable plants to recognize herbivores and may help plants adjust their defense responses. Here, we report on herbivore-induced changes in a protein disulfide isomerase (PDI) widely distributed across arthropods. PDI from the spider mite Tetranychus evansi (TePDI), a mesophyll-feeding agricultural pest worldwide, triggered immunity in multiple Solanaceae plants. TePDI-mediated cell death in Nicotiana benthamiana required the plant signaling proteins SGT1 (suppressor of the G2 allele of skp1) and HSP90 (heat shock protein 90), but was suppressed by spider mite effectors Te28 and Te84. Moreover, PDIs from phylogenetically distinct herbivorous and nonherbivorous arthropods triggered plant immunity. Finally, although PDI-induced plant defenses impaired the performance of spider mites on plants, RNAi experiments revealed that PDI genes are essential for the survival of mites and whiteflies. Our findings indicate that plants recognize evolutionarily conserved HAMPs to activate plant defense and resist pest damage, pointing to opportunities for broad-spectrum pest management"
Keywords:		Animals *Herbivory Protein Disulfide-Isomerases/genetics Plants Tobacco/genetics Plant Proteins/genetics *Tetranychidae/physiology;
Notes:		"MedlineCui, Jia-Rong Bing, Xiao-Li Tang, Yi-Jing Liu, Fan Ren, Lu Zhou, Jia-Yi Liu, Huan-Huan Wang, Meng-Ke Hoffmann, Ary A Hong, Xiao-Yue eng Research Support, Non-U.S. Gov't 2022/10/22 Plant Physiol. 2023 Jan 2; 191(1):660-678. doi: 10.1093/plphys/kiac489"