Antiviral activity of selected medicinal plants and marine seaweeds on the grasserie infected larvae of silkworm, Bombyx mori. (8th November 2017)

• Record Type: Journal Article
• Authors: Somu, Chitra; Paulchamy, Ramaraj; Moorthy, S. M.; Sundaram, Janarthanan
• Is Part Of: Archives of phytopathology and plant protection. Volume 50:Number 17/18(2017)
• Page Start: 850
• Page End: 867
• Publication Date: 2017-11-08
• Subjects: Bombyx mori -- nuclear polyhedrosis virus -- botanicals -- seaweeds -- bioassay -- antiviral activity; Plants, Protection of -- Periodicals; Plant diseases -- Periodicals; 632
• DOI: 10.1080/03235408.2017.1401700
• Languages: English
• ISSNs: 0323-5408

Abstract

Abstract: Nuclear polyhedrosis virus (NPV) is the most harmful virus responsible for the manifestation of grasserie disease in the larvae of silkworm, Bombyx mori . It causes a huge economic loss in the sericulture industry. An attempt was made in the present investigation for the screening of antiviral activity using medicinal plants such as Lantana camara, Phyllanthus amarus and marine seaweeds such as Sargassum wightii, Turbinaria ornata against Bm NPV. Crude extracts were prepared using different solvents, such as hexane, ethyl acetate, methanol and water. The silkworm feeding bioassay study was carried out with the crude extracts to investigate the presence of anti- Bm NPV activity after inoculating fifth instar larvae of silkworm with occlusion bodies (OBs) of Bm NPV. Each extract was tested for their anti- Bm NPV activity using various concentrations of crude extracts ranging from 200 μg to 1000 μg. Among the crude extracts tested, methanol and aqueous extracts of P. amarus showed significant anti- Bm NPV activity.