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Stink bug predator kills prey with salivary non-proteinaceous compounds.

Abstract：

:Podisus nigrispinus Dallas (Hemiptera: Pentatomidae) is a predator insect with potential applications in biological control because both nymphs and adults have been shown to prey on other insect pests by injection of toxic salivary gland contents. This study identified non-proteinaceous compounds with insecticidal activity from the saliva of P. nigrispinus in Anticarsia gemmatalis. In particular, the ether extract from P. nigrispinus saliva led to mortality in A. gemmatalis larvae, with a LC50 = 2.04 μL and LC90 = 3.27 μL. N,N-dimethylaniline and 1,2,5-trithiepane fractions were identified as non-proteinaceous extract components. N,N-dimethylaniline had a LC50 = 136.1 nL and LC90 = 413.8 nL, suggesting that it could be responsible for toxicity in P. nigrispinus saliva.

journal_name

Insect Biochem Mol Biol

journal_title

Insect biochemistry and molecular biology

authors

Martínez LC,Fialho Mdo C,Barbosa LC,Oliveira LL,Zanuncio JC,Serrão JE

doi

10.1016/j.ibmb.2015.11.006

subject

Has Abstract

pub_date

2016-01-01 00:00:00

pages

71-8

eissn

0965-1748

issn

1879-0240

pii

S0965-1748(15)30070-9

journal_volume

68

pub_type

杂志文章

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