In:
Pest Management Science, Wiley, Vol. 77, No. 5 ( 2021-05), p. 2415-2424
Abstract:
Tri‐trophic interactions among plants, insect herbivores and entomopathogens are one of the hot topics in ecology. Although plants have been shown to impact the interactions between herbivores and entomopathogens, it is still unclear how plants affect the cellular immunity of herbivores to entomopathogens. RESULTS The number of hemocytes and the proportion of two main cell types (granular hemocytes and plasmatocytes), plasmatocyte‐spreading rate, apoptosis rate, two Spodoptera exigua caspase ( Se Casp‐1, Se Casp‐5) activities and gene expressions were all higher and the activities and gene expression of S. exigua inhibitor of apoptosis protein ( Se IAP) were lower in nucleopolyhedrovirus (NPV)‐infected caterpillars fed Ipomoea aquatica than those fed other plants or artificial diet. Scanning electron microscopy images were consistent with molecular patterns of immune responses. CONCLUSION This study suggests that host plants affect the immune responses of herbivores to entomopathogens by manipulating the composition, morphology and apoptosis of herbivore hemocytes, which sheds light on the mechanisms that allow host plants to influence multi‐trophic interactions. © 2021 Society of Chemical Industry
Type of Medium:
Online Resource
ISSN:
1526-498X
,
1526-4998
Language:
English
Publisher:
Wiley
Publication Date:
2021
detail.hit.zdb_id:
2003455-6
SSG:
12
