1Department of Plant Pathology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University Coimbatore 641 003.
2Department of Plant Pathology, Indian Institute of Spice Research, Maricunnu, Calicut.
Abstracts of Research Papers Presented during the National Symposium of Indian Virological Society at Unit of Plant Virology, Division of Plant Pathology, Indian Agricultural Research Institute, New Delhi-110 012, October 14–1.
Tospoviruses are among the ten most devastating plant viruses, with a host list that includes over 1050 species, including mono and dicotyledenous crop plants belonging to more than 80 families. This virus infection was noticed in soybean, cowpea, greengram and blackgram plants at Coimbatore district in Tamil Nadu. Due to Tospovirus infection affected plants showed, cholorotic lesions, veinal necrosis, tip necrosis, stem and petiole necrosis. Bioassay test was carried out in cowpea cv. C 152. In this test these four isolates induced similar type of symptoms like chlorotic and necrotic lesions. For serological identification, Direct antigen coating enzyme linked immunosorbent assay (DACELISA) was carried out. These four tospovirus isolates reacted positively with the antiserum of Groundnut bud necrosis virus (GBNV) and Watermelon silver mottle virus (WSMV).
