Academic Journal
Deciphering the antiviral nature of endophytic Bacillus spp. against groundnut bud necrosis virus in cowpea and tomato
| العنوان: | Deciphering the antiviral nature of endophytic Bacillus spp. against groundnut bud necrosis virus in cowpea and tomato |
|---|---|
| المؤلفون: | M. Gayathri, R. Sharanya, P. Renukadevi, S. Nakkeeran, N. Saranya, S. Varanavasiappan, M. Raveendran, A. Suhail, Saad Alkahtani |
| المصدر: | Frontiers in Microbiology, Vol 15 (2024) |
| بيانات النشر: | Frontiers Media S.A., 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Microbiology |
| مصطلحات موضوعية: | GBNV, bacterial endophytes, virus titer, ELISA, real-time PCR, Microbiology, QR1-502 |
| الوصف: | Tomato, the important vegetable crop, is severely affected by Orthotospovirus arachinecrosis which impacts heavy economic losses. The application of insecticide to manage viral diseases is not an environmentally safe approach. In view of these issues, we investigated the antiviral efficacy of 21 bacterial endophytes against GBNV in local lesion host (Cowpea-VBN3). Based on the reduction in lesion number and virus titer as estimated through both DAC ELISA and qPCR in cowpea, the bacterial endophytes viz., Bacillus licheniformis Soya1, Bacillus tequilensis NBL6, and Bacillus velezensis VB7 were selected and further tested in tomato. The study revealed the well-defined antiviral efficacy of these endophytes against GBNV. The percentage of disease incidence ranged from 16 to 24% in endophyte-treated tomato plants compared with untreated plants (88%). In addition, symptom severity was reduced, and the application of endophytes also in promotion of the growth compared with untreated control. DAC ELISA revealed that the tomato plants treated with bacterial endophytes challenged with GBNV showed reduction in the virus titer (0.26–0.39 @ OD 405 nm) at different days of interval after inoculation (0, 5, and 10 days) compared with untreated control (3.475 @ OD 405 nm). Additionally, reduction in the viral copy number in bacterial endophyte-treated plants was evident by real-time PCR. Furthermore, tomato plants bacterized with endophytes depicted significant correlation and reduction in viral load and disease incidence as revealed by the principal-component biplot analysis. Thus, the application of bacterial endophytes has a potential role in reducing the disease incidence, severity, and titer value of GBNV, which will be the promising management approach in future to mitigate the virus infection in tomato plants. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1664-302X |
| Relation: | https://www.frontiersin.org/articles/10.3389/fmicb.2024.1410677/full; https://doaj.org/toc/1664-302X |
| DOI: | 10.3389/fmicb.2024.1410677 |
| URL الوصول: | https://doaj.org/article/de3cf506dcb64350848b44b185adf2e6 |
| رقم الانضمام: | edsdoj.3cf506dcb64350848b44b185adf2e6 |
| قاعدة البيانات: | Directory of Open Access Journals |
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