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Sodium alginate potentiates antioxidant defense and PR proteins against early blight disease caused by Alternaria solani in Solanum lycopersicum Linn.
- Source :
-
PloS one [PLoS One] 2019 Sep 30; Vol. 14 (9), pp. e0223216. Date of Electronic Publication: 2019 Sep 30 (Print Publication: 2019). - Publication Year :
- 2019
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Abstract
- The use of biopolymers as elicitors in controlling plant diseases is gaining momentum world-wide due to their eco-friendly and non-toxic nature. In the present study, we have used an algal biopolymer (sodium alginate) and tested its applicability as an elicitor in inducing resistance factors against Alternaria solani, which causes early blight disease in Solanum lycopersicum (tomato plant). We have pre-treated tomato plants with different concentrations of sodium alginate (0.2%, 0.4%, and 0.6%) before A. solani infection. We found that sodium alginate has effectively controlled the growth of A. solani. In addition, a significant increase in the expression levels of SOD was observed in response to pathogen infection. The increased protease inhibitors activity further suggest that sodium alginate restrict the development of A. solani infection symptoms in tomato leaves. This corroborates well with the cell death analysis wherein increased sodium alginate pre-treatment results in decreased cell death. Also, the expression profile analyses reveal the induction of genes only in sodium alginate-pretreated tomato leaves, which are implicated in plant defense mechanism. Taken together, our results suggest that sodium alginate can be used as an elicitor to induce resistance against A. solani in tomato plants.<br />Competing Interests: The affiliation of Acme Progen Biotech (India) Pvt. Ltd does not alter our adherence to PLOS ONE policies on sharing data and materials.
- Subjects :
- Alternaria pathogenicity
Antioxidants pharmacology
Cell Death drug effects
Chitinases genetics
Chitinases immunology
Disease Resistance genetics
Gene Expression Regulation, Plant drug effects
Gene Expression Regulation, Plant immunology
Glucan 1,3-beta-Glucosidase genetics
Glucan 1,3-beta-Glucosidase immunology
Solanum lycopersicum genetics
Solanum lycopersicum immunology
Solanum lycopersicum microbiology
Plant Cells drug effects
Plant Cells microbiology
Plant Diseases genetics
Plant Diseases immunology
Plant Diseases microbiology
Plant Leaves drug effects
Plant Leaves genetics
Plant Leaves immunology
Plant Leaves microbiology
Plant Proteins immunology
Protease Inhibitors immunology
Protease Inhibitors metabolism
Superoxide Dismutase genetics
Superoxide Dismutase immunology
Alginates pharmacology
Alternaria immunology
Disease Resistance drug effects
Solanum lycopersicum drug effects
Plant Diseases prevention & control
Plant Growth Regulators pharmacology
Plant Proteins genetics
Subjects
Details
- Language :
- English
- ISSN :
- 1932-6203
- Volume :
- 14
- Issue :
- 9
- Database :
- MEDLINE
- Journal :
- PloS one
- Publication Type :
- Academic Journal
- Accession number :
- 31568481
- Full Text :
- https://doi.org/10.1371/journal.pone.0223216