当前位置： SCI文献检索 > PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY期刊下所有文献 > Characterization of immune-related PGRP gene expression and phenoloxidase activity in Cry1Ac-susceptible and -resistant Plutella xylostella (L.).

Characterization of immune-related PGRP gene expression and phenoloxidase activity in Cry1Ac-susceptible and -resistant Plutella xylostella (L.).

Abstract：

:Peptidoglycan recognition proteins (PGRPs) are important recognition receptors which play a critical role in signal identification and transmission in Toll or immune deficiency (IMD) pathways, particularly when pathogens evade and circumvent reactive oxygen species. Antimicrobial peptides (AMPs) synthesis can be activated by these signals to further eliminate pathogens. In this study, we cloned and characterized three different PGRP genes in Plutella xylostella strains, DBM1Ac-S, DBM1Ac-R and a field strain (DBMF). The results showed that PGRP1 belongs to the PGRP-SA family, PGRP2 to PGRP-LB, and PGRP3 to PGRP-LF. Moreover, PGRP1 expressed the highest transcript level, followed by PGRP3 and PGRP2, in two tissues including the gut and the larval carcass tissues of the DBM1Ac-S strain. Furthermore, altered expression levels of PGRP1-3 genes were detected in both gut and carcass tissues. Moreover, the DBM1Ac-R strain had the highest phenol oxidase (PO) activity among these three strains. The characterization of PGRP gene expression and PO activity in DBM1Ac-S, DBM1Ac-R and DBM-F provides insights into their important physiological roles in the immune system of P. xylostella exposed to Bt Cry1Ac toxin.

journal_name

Pestic Biochem Physiol

journal_title

Pesticide biochemistry and physiology

authors

Liu A,Huang X,Gong L,Guo Z,Zhang Y,Yang Z

doi

10.1016/j.pestbp.2019.07.004

subject

Has Abstract

pub_date

2019-10-01 00:00:00

pages

79-86

eissn

0048-3575

issn

1095-9939

pii

S0048-3575(18)30621-7

journal_volume

160

pub_type

杂志文章

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