Data/hora: 15/06/2024 16:15:15

Biblioteca(s): 	Embrapa Algodão.	
Data corrente: 	13/01/2020	
Data da última atualização: 	20/01/2020	
Autoria: 	SILVA, C. S. B. D.; PRICE, B. E.; WALTN, V. M.	
Afiliação: 	CHERRE SADE BEZERRA DA SILVA, CNPA; Briana Elizabeth Price, Oregon State University/Department of Horticulture; Vaughn M. Walton, Oregon State University/Department of Horticulture.	
Título: 	Water-Deprived Parasitic Wasps (Pachycrepoideus vindemmiae) Kill More Pupae of a Pest (Drosophila suzukii) as a Water-Intake Strategy.	
Ano de publicação: 	2019	
Fonte/Imprenta: 	Open Access Scientific Reports, v. 9, 2019.	
Idioma: 	Inglês	
Conteúdo: 	Most organisms must ingest water to compensate for dehydration. In parasitic wasps, the importance of water and the behaviors driving its consumption are poorly understood. Here, we describe a waterintake strategy of Pachycrepoideus vindemmiae, a parasitoid of spotted-wing drosophila (SWD, Drosophila suzukii). Longevity measurements indicated that P. vindemmiae benefits from drinking water and from host-feeding on the water-rich hemolymph of SWD pupae. After exposing wasps to different water regimens, we observed increased host-feeding in water-deprived wasps despite honey availability. This resulted in greater SWD mortality because the host-feeding process killed the pupae, and because wasps that engaged in greater host-feeding parasitized more hosts. Behavioral observations showed that the host-feeding time of water-deprived wasps doubled compared to water-fed individuals. Host-feeding did not affect parasitoid offspring mortality. We conclude that P. vindemmiae benefits from ingesting water and that it host-feeds on SWD pupae as a water-intake strategy. These are interesting findings not only because water has rarely been reported as a critical nutrient for adult parasitoids, but especially because preying for the purpose of hydration is not a common strategy in nature. This strategy enhances parasitoid survival and reproduction, with positive consequences for its host-killing capacity and potential as a biocontrol agent.	
Thesagro: 	Hospedeiro; Vespa.	
Thesaurus Nal: 	Pachycrepoideus vindemmiae; Parasitic wasps; Parasitoids; Water.	
Categoria do assunto: 	--	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/208673/1/Water-Deprived-Parasitic-wasps.pdf	
Registro original: 	Embrapa Algodão (CNPA)	
Exemplares: 	CNPA - (28701-1) - UPC - AP - DD -  -  -  - DIS