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Sci Rep

Title:		Digestive activity and organic compounds of Nezara viridula watery saliva induce defensive soybean seed responses
Author(s):		Giacometti R; Jacobi V; Kronberg F; Panagos C; Edison AS; Zavala JA;
Address:		"Consejo Nacional de Investigaciones Cientificas y Tecnicas / Instituto de Investigaciones en Biociencias Agricolas y Ambientales, Facultad de Agronomia, Universidad de Buenos Aires, Avda. San Martin 4453, C1417DSE, Buenos Aires, Argentina. Catedra de Bioquimica, Facultad de Agronomia, Universidad de Buenos Aires, Avda. San Martin 4453, C1417DSE, Buenos Aires, Argentina. Complex Carbohydrate Research Center (CCRC), University of Georgia, Athens, GA, USA. Consejo Nacional de Investigaciones Cientificas y Tecnicas / Instituto de Investigaciones en Biociencias Agricolas y Ambientales, Facultad de Agronomia, Universidad de Buenos Aires, Avda. San Martin 4453, C1417DSE, Buenos Aires, Argentina. zavala@agro.uba.ar. Catedra de Bioquimica, Facultad de Agronomia, Universidad de Buenos Aires, Avda. San Martin 4453, C1417DSE, Buenos Aires, Argentina. zavala@agro.uba.ar"
Journal Title:		Sci Rep
Year:		2020
Volume:		20200922
Issue:		1
Page Number:		15468 -
DOI:		10.1038/s41598-020-72540-3
ISSN/ISBN:		2045-2322 (Electronic) 2045-2322 (Linking)
Abstract:		"The stink bug Nezara viridula is one of the most threatening pests for agriculture in North and South America, and its oral secretion may be responsible for the damage it causes in soybean (Glycine max) crop. The high level of injury to seeds caused by pentatomids is related to their feeding behavior, morphology of mouth parts, and saliva, though information on the specific composition of the oral secretion is scarce. Field studies were conducted to evaluate the biochemical damage produced by herbivory to developing soybean seeds. We measured metabolites and proteins to profile the insect saliva in order to understand the dynamics of soybean-herbivore interactions. We describe the mouth parts of N. viridula and the presence of metabolites, proteins and active enzymes in the watery saliva that could be involved in seed cell wall modification, thus triggering plant defenses against herbivory. We did not detect proteins from bacteria, yeasts, or soybean in the oral secretion after feeding. These results suggest that the digestive activity and organic compounds of watery saliva may elicit a plant self-protection response. This study adds to our understanding of stink bug saliva plasticity and its role in the struggle against soybean defenses"
Keywords:		Animals *Feeding Behavior Heteroptera/*physiology Metabolome Organic Chemicals/*pharmacology Proteome/analysis/metabolism Saliva/*metabolism Salivary Proteins and Peptides/*metabolism Seeds/drug effects/*immunology/parasitology Soybeans/drug effects/*immu;
Notes:		"MedlineGiacometti, Romina Jacobi, Vanesa Kronberg, Florencia Panagos, Charalampos Edison, Arthur S Zavala, Jorge A eng Research Support, Non-U.S. Gov't England 2020/09/24 Sci Rep. 2020 Sep 22; 10(1):15468. doi: 10.1038/s41598-020-72540-3"