An Insect Vector of the Turnip Yellow Mosaic Virus

Nature ◽  
1946 ◽  
Vol 158 (4012) ◽  
pp. 417-417 ◽  
Author(s):  
KENNETH M. SMITH ◽  
ROY MARKHAM
Keyword(s):  
Mosaic Virus ◽  
Yellow Mosaic Virus ◽  
Insect Vector ◽  
Turnip Yellow Mosaic Virus

Studies on the virus of turnip yellow mosaic

Parasitology ◽  
1949 ◽  
Vol 39 (3-4) ◽  
pp. 330-342 ◽  
Author(s):  
Roy Markham ◽  
Kenneth M. Smith
Keyword(s):  
Nucleic Acid ◽  
Mosaic Virus ◽  
High Speed ◽  
Thermal Inactivation ◽  
Flea Beetle ◽  
Yellow Mosaic Virus ◽  
Insect Vector ◽  
Turnip Yellow Mosaic Virus ◽  
Cruciferous Plants ◽  
Free Material

A new virus affecting cruciferous plants is described and the name suggested for it is the turnip yellow mosaic virus. The virus is sap-transmissible and has a dilution end-point in extracted sap of 10−5. The thermal inactivation point lies between 70 and 75° C.The virus is not transmitted by insects with sucking mouthparts, but the insect vector in nature is a flea-beetle, Phyllotreta sp. More than one species of flea-beetle can transmit the virus.Under experimental conditions the virus has been transmitted by the mustard beetle, Phaedon cochleariae and its larva; by the ‘long-horn’ grasshopper, Leptophyes punctatissima Bosc.; by the ‘short-horn’ grasshopper, Stauroderus bicolor Charp. and by the common earwig, Forflcula auricularia Linn. Lepidopterous larvae have, so far, failed to transmit the virus.The relationship of the virus with biting insects is discussed.Turnip yellow mosaic virus has been obtained from several cruciferous plants as a nucleoprotein of the pentose type. It crystallizes from salt solutions as isotropic octahedra and from 20% alcohol at pH 3·7 as birefringent needles. On centrifuging out of solution the pellets are also crystalline. The virus preparation contains some 22% of nucleic acid.The virus is denatured at room temperature in alcohol of concentration greater than 30% in neutral solutions, and the nucleic acid, which is a large polymerized particle, is liberated.The preparations have been found to consist of 80 % of a nucleoprotein and 20 % of a nucleic acid-free protein which may be isolated by high-speed centrifuging. The latter has the same electrophoretic mobility and isoelectric point (pH 3·7) as the nucleoprotein; both crystallize in the same crystal form, and they are serologically identical.The nucleic acid-free material does not seem to be infectious.

Turnip yellow mosaic virus isolated from Chinese cabbage in Japan

2008 ◽  
Vol 74 (4) ◽  
pp. 331-334 ◽  
Author(s):  
Namiko Kirino ◽  
Koji Inoue ◽  
Koji Tanina ◽  
Yuya Yamazaki ◽  
Satoshi T. Ohki
Keyword(s):  
Mosaic Virus ◽  
Chinese Cabbage ◽  
Yellow Mosaic Virus ◽  
Turnip Yellow Mosaic Virus

Stimulation of Turnip Yellow Mosaic Virus Protein Production by 2-Thiouracil

Nature ◽  
1961 ◽  
Vol 191 (4793) ◽  
pp. 1078-1080 ◽  
Author(s):  
R. I. B. FRANCKI ◽  
R. E. F. MATTHEWS
Keyword(s):  
Mosaic Virus ◽  
Protein Production ◽  
Yellow Mosaic Virus ◽  
Virus Protein ◽  
Turnip Yellow Mosaic Virus ◽  
Stimulation Of

​RCA-based Detection of Begomoviruses in Weed Ggenera Associated with Legumes in Southern Karnataka

2021 ◽  
Author(s):  
Sudeep Pandey ◽  
T.R. Girish ◽  
S. Basavaraj ◽  
A.S. Padmaja ◽  
N. Nagaraju
Keyword(s):  
Mosaic Virus ◽  
Rolling Circle Amplification ◽  
Mosaic Disease ◽  
Yellow Mosaic Virus ◽  
Insect Vector ◽  
Weed Species ◽  
Ageratum Conyzoides ◽  
Yellow Mosaic Disease ◽  
Mungbean Yellow Mosaic Virus ◽  
Legume Crops

Background: Yellow mosaic disease (YMD) caused by begomoviruses transmitted through the insect vector Bemisia tabaci poses a serious threat to the production of legume crops. Methods: Season-long surveys were carried out for YMD occurrence in six different legume crops and associated natural weeds both symptomatic and asymptomatic across the districts of southern Karnataka, India. The samples were analyzed through RCA PCR using specific primer pairs. Result: Up to 94.1 per cent YMD incidence was recorded and nine weed species were commonly found associated with legume crops. The weeds viz., Ageratum conyzoides, Alternanthera sessilis, Commelina benghalensis and Euphorbia geniculata were abundantly found in the surveyed regions. The weeds were both symptomatic and asymptomatic. Rolling circle amplification coupled polymerase chain reaction method was employed to detect yellow mosaic virus in asymptomatic weeds. Phylogenetic analysis based on the sequences of PCR amplified products of weeds and symptomatic legumes revealed a close clustering of the weed samples with horsegram yellow mosaic virus, legume yellow mosaic virus and mungbean yellow mosaic virus. Overall, our data suggests the role of weed species associated with legume crops as alternative/collateral hosts of begomoviruses and their role in the epidemiology of yellow mosaic disease.

Sign in / Sign up

Export Citation Format

Share Document