Título:	Unveiling the feeding behavior of Tibraca limbativentris (Hemiptera: Pentatomidae) on rice using an electropenetrography waveform library.
Autoria:	ALMEIDA, A. C. S. JESUS, F. G. de BARRIGOSSI, J. A. F.
Afiliação:	ANDRE CIRILODE S. ALMEIDA, INSTITUTO FEDERAL GOIANO, Urutaí-GO; FLAVIO GONÇALVES DE JESUS, INSTITUTO FEDERAL GOIANO, Urutaí-GO; JOSE ALEXANDRE F BARRIGOSSI, CNPAF.
Ano de publicação:	2020
Referência:	Journal of Insect Science, v. 20, n. 4, p. 1-8, July 2020.
Conteúdo:	The rice stalk stink bug, Tibraca limbativentris Stål, damages plant stalks while feeding, making it one of the most important rice pests in South America. Because the feeding behavior of T. limbativentris has not yet been studied in rice, we investigated T. limbativentris stylet penetration (probing) in rice stalks. A waveform library was created using the new AC-DC EPG monitor with different levels of input resistance (Ri). Six different waveforms were recorded and correlated via histological studies and grouped into three phases: non-probing waveforms (Z and Np), pathway waveforms (Tl1), and ingestion waveforms (Tl2 and Tl3). The Z waveform was observed when the stink bug was standing still on the plant surface, Np when the stink bug was walking on plant surface, Tl1 was associated with stylet insertion and deep penetration into the plant tissue, and Tl2 when the stink bug was feeding on xylem vessels. The Tl3 waveform was associated with the rupture of stalk cells and was divided into two subtypes (Tl3a and Tl3b). The Tl3a waveform probably represents cell laceration with combined enzymatic maceration of stalk tissues, while Tl3b represents a short ingestion period of macerated tissues. Tibraca limbativentris uses two strategies to feed on rice stalks: a salivary sheath for feeding on xylem vessels and cell rupture (laceration and maceration) for feeding on parenchyma cells. Our study provides crucial benchmark definitions of waveforms. Future studies can now compare effects of treatments on stink bug feeding, to ultimately improve management of this pest in rice.
Thesagro:	Arroz Oryza Sativa Tibraca Limbativentris Praga de Planta
NAL Thesaurus:	Feeding behavior Rice Plant pests
Palavras-chave:	Electrical penetration graph Feeding site Rice Stalk Stink bug
ISSN:	1536-2442
Digital Object Identifier:	https://doi.org/10.1093/jisesa/ieaa064
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPAF)