Browsing by Subject "Coat protein"

Now showing 1 - 3 of 3

Open Access
Bacillus megaterium mediated growth promotion and biological control of crown rot disease of Oncidium incited by Sclerotium rolfsii Sacc.
(University of North Bengal, 2022-03) Basnet, M; Tongden, C; Chakraborty, U; Chakraborty, BN
Plant viruses cause severe diseases leading to enormous crop loss. The present day viral researches of economic plants are centered on identification of virus, molecular characterization and management of viral discases. Till date more than thousand viruses have been classified into several families. It is desirable to know about the different virus families along with their type genus and/or important genus. But due to an enormous volume of literature published on this aspect, it becomes difficult to study all of them. Hence the present review has highlighted the salient features of the major plant viruses which have been classified at the family level. Most of the virus families have been discussed with important/type genus of each family. Some viruses which could not be placed in any family have been grouped as 'no family". Importance of molecular data, immunological data and data on protein configuration of coat proteins along with bioinformatics and its predictive power have been highlighted.
Open Access
Major plant viruses: an overview
(University of North Bengal, 2010-03) Saha, A; Saha, B; Saha, D
Plant viruses cause severe diseases leading to enormous crop loss. The present day viral researches of economic plants are centered on identification of virus, molecular characterization and management of viral discases. Till date more than thousand viruses have been classified into several families. It is desirable to know about the different virus families along with their type genus and/or important genus. But due to an enormous volume of literature published on this aspect, it becomes difficult to study all of them. Hence the present review has highlighted the salient features of the major plant viruses which have been classified at the family level. Most of the virus families have been discussed with important/type genus of each family. Some viruses which could not be placed in any family have been grouped as 'no family". Importance of molecular data, immunological data and data on protein configuration of coat proteins along with bioinformatics and its predictive power have been highlighted.
Open Access
Prevalence of begomoviruses associated with tomato leaf curl disease in the sub-Himalayan plains of West Bengal
(University of North Bengal, 2016-03) Karmakar, A.; Chakraborty, P.; Sarkar, T.; Das, S.; Saha, A.; Saha, D.; Saha, A.
Tomato is a solanaceous crop and one of the most economically important vegetables in the world. India ranks second in total production of tomato in the world. It has been referred to as a “functional food”, a food that goes beyond providing just basic nutrient. To LCD is one of the major constraints to tomato production in India. To study the disease incidence of tomato, a survey was made in the tomato crop growing fields of Darjeeling, Jalpaiguri, Coochbehar and Uttar Dinajpur districts of sub-Himalayan West Bengal during December 2015 to February 2016 and several infected and healthy leaf samples were collected based on the morphological symptoms like-vein cleaning, leaf curling, leaf deformations and stunted growth of plants. Disease incidence ranged from 70% to 86.66% of the collected samples from different districts. All the samples collected from the present study area were tested by PCR with DengA and DengB primer and expected amplicon of ̴ 530bp was found. Two randomly selected PCR positive samples were sequence and analyzed (Acc. Nos KX108859 and KX108860). The SLG-1 isolate (Acc. No. KX108859) showed 95 % nt identity with ToLCKV (Acc. No. KP178730) and the ISL-1 isolate (Acc. No. KX108860) showed 96% nt identity with ToLCNDV (Acc. No. KC513822). The threat of begomoviral spread to the north-eastern part of India has been taken into consideration.