Novel insights into plant defensin ingestion induced metabolic responses in the polyphagous insect pest Helicoverpa armigera
Abstract Lepidopteran insect pest Helicoverpa armigera is one of the most destructive pests of crop plants and several biotechnological approaches are being developed for its control. Plant defensins are small cationic and cysteine-rich peptides that play a role in plant defense. Ingestion of a defe...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-02-01
|
| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-29250-3 |
| _version_ | 1797865130399105024 |
|---|---|
| author | Javed A. Mulla Vaijayanti A. Tamhane |
| author_facet | Javed A. Mulla Vaijayanti A. Tamhane |
| author_sort | Javed A. Mulla |
| collection | DOAJ |
| description | Abstract Lepidopteran insect pest Helicoverpa armigera is one of the most destructive pests of crop plants and several biotechnological approaches are being developed for its control. Plant defensins are small cationic and cysteine-rich peptides that play a role in plant defense. Ingestion of a defensin from Capsicum annuum (CanDef-20) induced a dose-dependent reduction in larval and pupal mass, delayed metamorphosis and also severely reduced fecundity and fertility in H. armigera. To understand the molecular mechanisms of CanDef-20 ingestion-mediated antibiosis in H. armigera larvae, a comparative transcriptomics analysis was carried out. Predominant downregulation of GOs represents serine-type endopeptidases, structural constituents of ribosomes and integral membrane components and differential upregulation of ATP binding, nucleus and translation, while up-regulation of nucleic acid binding represented by transposable elements, were detected. Different isoforms of lipase, serine endopeptidase, glutathione S-transferase, cadherin, alkaline phosphatase and aminopeptidases were found to be upregulated as a compensatory response to CanDef-20 ingestion. In vitro enzyme assays and qPCR analysis of some representative genes associated with vital cellular processes like metamorphosis, food digestion and gut membrane indicated adaptive differential regulations in CanDef-20 fed H. armigera larvae. We conclude that CanDef-20 ingestion affects insect metabolism in a number of ways through its interaction with cell membrane, enzymes, cytoplasmic proteins and triggering transposon mobilization which are linked to growth retardation and adaptive strategies in H. armigera. |
| first_indexed | 2024-04-09T23:03:00Z |
| format | Article |
| id | doaj.art-7fe385b5fce14c9b9deeda842fbf4ab5 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-09T23:03:00Z |
| publishDate | 2023-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-7fe385b5fce14c9b9deeda842fbf4ab52023-03-22T10:52:40ZengNature PortfolioScientific Reports2045-23222023-02-0113111710.1038/s41598-023-29250-3Novel insights into plant defensin ingestion induced metabolic responses in the polyphagous insect pest Helicoverpa armigeraJaved A. Mulla0Vaijayanti A. Tamhane1Department of Biotechnology (Jointly Merged With Institute of Bioinformatics and Biotechnology (IBB)), Savitribai Phule Pune UniversityDepartment of Biotechnology (Jointly Merged With Institute of Bioinformatics and Biotechnology (IBB)), Savitribai Phule Pune UniversityAbstract Lepidopteran insect pest Helicoverpa armigera is one of the most destructive pests of crop plants and several biotechnological approaches are being developed for its control. Plant defensins are small cationic and cysteine-rich peptides that play a role in plant defense. Ingestion of a defensin from Capsicum annuum (CanDef-20) induced a dose-dependent reduction in larval and pupal mass, delayed metamorphosis and also severely reduced fecundity and fertility in H. armigera. To understand the molecular mechanisms of CanDef-20 ingestion-mediated antibiosis in H. armigera larvae, a comparative transcriptomics analysis was carried out. Predominant downregulation of GOs represents serine-type endopeptidases, structural constituents of ribosomes and integral membrane components and differential upregulation of ATP binding, nucleus and translation, while up-regulation of nucleic acid binding represented by transposable elements, were detected. Different isoforms of lipase, serine endopeptidase, glutathione S-transferase, cadherin, alkaline phosphatase and aminopeptidases were found to be upregulated as a compensatory response to CanDef-20 ingestion. In vitro enzyme assays and qPCR analysis of some representative genes associated with vital cellular processes like metamorphosis, food digestion and gut membrane indicated adaptive differential regulations in CanDef-20 fed H. armigera larvae. We conclude that CanDef-20 ingestion affects insect metabolism in a number of ways through its interaction with cell membrane, enzymes, cytoplasmic proteins and triggering transposon mobilization which are linked to growth retardation and adaptive strategies in H. armigera.https://doi.org/10.1038/s41598-023-29250-3 |
| spellingShingle | Javed A. Mulla Vaijayanti A. Tamhane Novel insights into plant defensin ingestion induced metabolic responses in the polyphagous insect pest Helicoverpa armigera Scientific Reports |
| title | Novel insights into plant defensin ingestion induced metabolic responses in the polyphagous insect pest Helicoverpa armigera |
| title_full | Novel insights into plant defensin ingestion induced metabolic responses in the polyphagous insect pest Helicoverpa armigera |
| title_fullStr | Novel insights into plant defensin ingestion induced metabolic responses in the polyphagous insect pest Helicoverpa armigera |
| title_full_unstemmed | Novel insights into plant defensin ingestion induced metabolic responses in the polyphagous insect pest Helicoverpa armigera |
| title_short | Novel insights into plant defensin ingestion induced metabolic responses in the polyphagous insect pest Helicoverpa armigera |
| title_sort | novel insights into plant defensin ingestion induced metabolic responses in the polyphagous insect pest helicoverpa armigera |
| url | https://doi.org/10.1038/s41598-023-29250-3 |
| work_keys_str_mv | AT javedamulla novelinsightsintoplantdefensiningestioninducedmetabolicresponsesinthepolyphagousinsectpesthelicoverpaarmigera AT vaijayantiatamhane novelinsightsintoplantdefensiningestioninducedmetabolicresponsesinthepolyphagousinsectpesthelicoverpaarmigera |