Viruses associated with chlorotic rosette and green rosette diseases of groundnut in Nigeria

Reddy, D V R and Murant, A F and Duncan, G H and Ansa, O A and Demski, J W and Kuhn, C W (1985) Viruses associated with chlorotic rosette and green rosette diseases of groundnut in Nigeria. Annals of Applied Biology, 107 (1). pp. 57-64. ISSN 1744-7348

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Groundnut (Arachis hypogaea) plants from Nigeria with chlorotic rosette disease contained a manually transmissible virus, considered to be a strain of groundnut rosette virus (GRV(C)). GRV(C) infected nine out of 32 species in three out of nine families. It caused local lesions without systemic infection in Chenopodium amaranticolor, C. murale and C. quinoa, and systemic symptoms in Glycine max, Nicotiana benthamiana, N. clevelandii and Phaseolus vulgaris as well as in groundnut. Some ‘rosette-resistant’ groundnut lines were also infected. GRV(C) was transmitted by Aphis craccivora, but only from groundnut plants that were also infected with an aphid-transmissible second virus, which was not manually transmissible and was considered to be groundnut rosette assistor virus (GRAV). Plants infected with GRAV contained isometric particles c. 25 nm in diameter which were detectable by immunosorbent electron microscopy on grids coated with antisera to several luteoviruses, especially with antisera to bean leaf roll, potato leafroll and beet western yellows viruses. No virus-like particles were observed in extracts from plants infected with GRV(C) alone. A single groundnut plant obtained from Nigeria with symptoms of green rosette contained luteovirus particles, presumed to be of GRAV, and yielded a manually transmissible virus that induced symptoms similar to those of GRV(C) in C. amaranticolor but gave only mild or symptomless infection of N. benthamiana and N. clevelandii. It was considered to be a strain of GRV and designated GRV(G).

Item Type: Article
Subjects: Mandate crops > Groundnut
Depositing User: Mr Charan Sai Ch
Date Deposited: 13 Nov 2011 08:25
Last Modified: 13 Nov 2011 08:25
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Acknowledgement: UNSPECIFIED
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