Previous View
 
APSnet Home
 
Phytopathology Home


VIEW ARTICLE

Etiology

Indian Peanut Clump Virus Isolates: Host Range, Symptomatology, Serological Relationships, and Some Physical Properties. B. L. Nolt, Groundnut Improvement Program, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, 502324, A.P., India, Present address: Cassava Program, CIAT, Apartado Aereo 6713, Cali, Colombia; R. Rajeshwari, D. V. R. Reddy, N. Bharathan, and S. K. Manohar. Groundnut Improvement Program, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, 502324, A.P., India. Phytopathology 78:310-313. Accepted for publication 9 December 1986. Copyright 1988 The American Phytopathological Society. DOI: 10.1094/Phyto-78-310.

The symptomatology of Indian peanut clump virus (IPCV) isolates collected from five different geographical locations, Bapatla (B), Chinnaganjam (C), Hyderabad (H), Ludhiana (L), and Talod (T), differed. B-IPCV and C-IPCV were indistinguishable by host range but could be distinguished from the other isolates by symptoms on Canavalia ensiformis, Nicotiana clevelandii glutinosa, Phaseolus vulgaris, and Vigna unguiculata. B-IPCV, C-IPCV, and T-IPCV were related serologically, but could be distinguished from H-IPCV and L-IPCV isolates in serological tests. The five isolates could not be distinguished on the basis of particle size. Each isolate contained two RNA species of 1.90 106 and 1.65 106 Mr estimated under nondenaturing conditions and a single polypeptide of 24 103 Mr. Significance of these findings for the diagnosis of IPCV and for screening of peanut genotypes for resistance is discussed.