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Occurrence of Mosaic Mottle, a Viroid Disease of Pigeonpea ( Cajanus cajan ) in India
Author(s) -
Bhattiprolu S. L.
Publication year - 1993
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.1993.tb01325.x
Subject(s) - cajanus , biology , viroid , chenopodium , virology , inoculation , plant virus , mottle , agronomy , horticulture , virus , weed
During investigations of viroid diseases of food crops in Delhi, India, an infectious low‐molecular‐weight RNA (M r 1.3 × 10 5 ) was isolated from pigeonpea (Cajanus cajan) plants showing mosaic mottling and reduced size of leaves, stunting and no flowering. This RNA infected mechanically inoculated C. cajan, Chenopodium amaranticolor, Nicotiana glutinosa , and N. clevelandii. The causal agent, for which the name pigeonpea mosaic mottle viroid (PMMVd) is proposed, differed from N. glutinosa stunt viroid (NgSVd), the only viroid reported to infect legumes, in size and symptom expression on the original host species.