Characteristics of a virus inhibitor from the leaf extract of Celosia cristata |
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| Authors: | V K BARANWAL & H N VERMA |
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| Institution: | National Centre for Integrated Pest Management (ICAR), LBS Centre of Biotechnology and Plant Protection, Indian Agricultural Research Institute, Pusa, New Delhi,;Plant Virus Laboratory, Department of Botany, Lucknow University, Lucknow;India |
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| Abstract: | A virus inhibitor in Celosia was shown to have moderate thermal stability and resistance to dilution and drying. It was non-dialysable and non-sedimentable and showed glycoproteinaceous characteristics with a molecular weight between 21 000 and 22 000. The inhibitory activity was not reversible by simultaneous application of actinomycin-D to the leaf surface of Nicotiana glutinosa and the virus was fully recovered from a mixture of tobacco mosaic virus and inhibitor, indicating that the inhibitor did not appear to act on the virus directly but interfered with virus establishment in the host. |
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