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Silver nanoparticles loaded pyrrole based pesticidal metabolites (AgNps-PFM) nanoconjugate induced impact on the gut microbion and immune response against lepidopteron pest Spodoptera litura (Fab.)

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Title Silver nanoparticles loaded pyrrole based pesticidal metabolites (AgNps-PFM) nanoconjugate induced impact on the gut microbion and immune response against lepidopteron pest Spodoptera litura (Fab.)
 
Creator Namasivayam, S Karthick Raja
Bharani, RS Arvind
 
Subject Enzyme
Gut microbion
Haemocytes
Nanoparticles
 
Description 478-485
Pest control measures using nanobiotechnology principles is now being extensively utilized in the various parts of the
world. Understanding the molecular mechanism behind the pestiicdal activity of the nanomaterials is essential to exploit the
principles of nanomaterials as an effective pest control strategy. In the present investigation, impact of the nanoconjugate
prepared from biogenic silver nanoparticles-fungal based insecticidal metabolites (AgNps-FM) on the gut microbion and
immune response against major lepidopteron pest Spodoptera litura (Fab.) was studied. Nanoconjugate was prepared from
silver nanoparticles from Pomegranate (Punica granatum) peel extract with the fungal based pesticidal metabolites. Highly
stable nano structural nano conjugate thus obtained was evaluated against gut microbion and immune response of
Spodoptera litura. Gut microbion status was studied by determination of microbial count, extra cellular enzymes potential of
the gut microbial isolates adopting culture dependent methods. Nanoconjugate induced effect on the immune response was
done by recording total hemocyte count and reduced total haemocyte count, phenol oxidase activity and lectin expression
pattern Synthesized nanoconjugate brought about notable impact on the gut microbion count and their extra cellular enzyme
potential. Reduced haemocytes count, poor lectin expression and reduced phenol oxidase production reveals the immune
suppressive activity. High efficacy of the Nanoconjugate thus obtained would suggest the possible utilization of
Nanoconjugate as an effective, safe pesticidal agent against economic important insect pests.
 
Date 2021-10-06T06:12:45Z
2021-10-06T06:12:45Z
2021-10
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscair.res.in/handle/123456789/58237
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJBB Vol.58(5) [October 2021]