scholarly journals First report of Cotton leafroll dwarf virus in Thailand using a species-specific PCR validated with isolates from Brazil

2015 ◽  
Vol 10 (1) ◽  
Author(s):  
M. Sharman ◽  
S. Lapbanjob ◽  
P. Sebunruang ◽  
J.-L. Belot ◽  
R. Galbieri ◽  
...  
Keyword(s):  
Dwarf Virus ◽  
First Report ◽  
Specific Pcr ◽  
Species Specific ◽  
Cotton Leafroll Dwarf Virus

scholarly journals First Report of Orange Rust of Sugarcane Caused by Puccinia kuehnii in Colombia

Plant Disease ◽  
2012 ◽  
Vol 96 (1) ◽  
pp. 143-143 ◽  
Author(s):  
M. Cadavid ◽  
J. C. Ángel ◽  
J. I. Victoria
Keyword(s):  
Internal Transcribed Spacer ◽  
Pcr Primers ◽  
The United States ◽  
Optical Microscope ◽  
First Report ◽  
5.8S Rdna ◽  
Specific Pcr ◽  
Plant Pathol ◽  
Species Specific ◽  
New Cultivars

Symptoms of sugarcane orange rust were first observed in July 2010 on sugarcane (interspecific hybrid of Saccharum L. species) cv. CC 01-1884 planted in the La Cabaña Sugar Mill, Puerto Tejada, Colombia. Morphological features of uredinial lesions and urediniospores inspected with an optical microscope and scanning electron microscopy were distinct from common rust of sugarcane caused by Puccinia melanocephala Syd. & P. Syd., revealing spores identical morphologically to those described for the fungus P. kuehnii (Kruger) E. Butler, causal agent of sugarcane orange rust (1,3). Uredinial lesions were orange and distinctly lighter in color than pustules of P. melanocephala. Urediniospores were orange to light cinnamon brown, mostly ovoid to pyriform, variable in size (27.3 to 39.2 × 16.7 to 21.2 μm), with pronounced apical wall and moderately echinulate with spines evenly distributed. Paraphyses, telia, and teliospores were not observed. Species-specific PCR primers designed from the internal transcribed spacer (ITS)1, ITS2, and 5.8S rDNA regions of P. melanocephala and P. kuehnii were used to differentiate the two species (2). The primers Pm1-F and Pm1-R amplified a 480-bp product from P. melanocepahala DNA in leaf samples with symptoms of common rust. By contrast, the primers Pk1-F and Pk1-R generated a 527-bp product from presumed P. kuehnii DNA in leaf samples with signs of orange rust, confirming the identity as P. kuehnii. The Centro de Investigación de la Caña de Azúcar de Colombia (Cenicaña) started a survey of different cultivars in nurseries and experimental and commercial fields in the Cauca River Valley and collected leaf samples for additional analyses. Experimental cvs. CC 01-1884, CC 01-1866, and CC 01-1305 were found to be highly susceptible to orange rust and were eliminated from regional trials, whereas commercial cvs. CC 85-92 and CC 84-75, the most widely grown cultivars, were resistant. With the discovery of orange rust of sugarcane in Colombia, Cenicaña has incorporated orange rust resistance in the selection and development of new cultivars. To our knowledge, this is the first report of P. kuehnii on sugarcane in Colombia. Orange rust has also been reported from the United States, Cuba, Mexico, Guatemala, Nicaragua, El Salvador, Costa Rica, Panama, Ecuador, and Brazil. References: (1) J. C. Comstock et al. Plant Dis. 92:175, 2008. (2) N. C. Glynn et al. Plant Pathol. 59:703, 2010. (3) E. V. Virtudazo et al. Mycoscience 42:167, 2001.

scholarly journals First Report of Cotton Leafroll Dwarf Virus from Upland Cotton (Gossypium hirsutum) in Arkansas

Plant Disease ◽  
2020 ◽  
Vol 104 (10) ◽  
pp. 2742
Author(s):  
Travis R. Faske ◽  
Daisy Stainton ◽  
Nina Aboughanem-Sabanadzovic ◽  
Tom W. Allen
Keyword(s):  
Gossypium Hirsutum ◽  
Upland Cotton ◽  
Dwarf Virus ◽  
First Report ◽  
Cotton Leafroll Dwarf Virus

scholarly journals First Report of Cotton Leafroll Dwarf Virus in Louisiana

2020 ◽  
Vol 21 (2) ◽  
pp. 142-143 ◽  
Author(s):  
Trey Price ◽  
Rodrigo Valverde ◽  
Raghuwinder Singh ◽  
Jeff Davis ◽  
Sebe Brown ◽  
...  
Keyword(s):  
United States ◽  
Molecular Diagnosis ◽  
Dwarf Virus ◽  
Southern United States ◽  
Symptom Development ◽  
Cotton Aphid ◽  
Aphid Infestation ◽  
First Report ◽  
Cotton Plants ◽  
Cotton Leafroll Dwarf Virus

Cotton leafroll dwarf virus (CLRDV) has recently been discovered in the southern United States. The virus is transmitted by the cotton aphid and causes numerous symptoms including foliar chlorosis, distortion, leaf cupping, and reddened leaf veins. These symptoms were observed in a field in northeast Louisiana during the summer of 2019 approximately 2 weeks after cotton aphid infestation. Grafting infected cotton plants with healthy ones resulted in similar symptom development, and molecular diagnosis initially indicated and then confirmed the presence of CLRDV in sampled and grafted specimens, respectively. This the first report of CLRDV in Louisiana.

scholarly journals First Report of Cotton Leafroll Dwarf Virus from Cotton (Gossypium hirsutum) in Oklahoma

Plant Disease ◽  
2020 ◽  
Vol 104 (9) ◽  
pp. 2531
Author(s):  
Akhtar Ali ◽  
Samira Mokhtari ◽  
Conner Ferguson
Keyword(s):  
Gossypium Hirsutum ◽  
Dwarf Virus ◽  
First Report ◽  
Cotton Leafroll Dwarf Virus

First Report of Cotton Leafroll Dwarf Virus Infecting Cotton in Georgia, U.S.A.

Plant Disease ◽  
2019 ◽  
Vol 103 (7) ◽  
pp. 1803 ◽  
Author(s):  
A. Tabassum ◽  
S. Bag ◽  
P. Roberts ◽  
N. Suassuna ◽  
P. Chee ◽  
...  
Keyword(s):  
Dwarf Virus ◽  
First Report ◽  
Cotton Leafroll Dwarf Virus

scholarly journals First Report of Cotton leafroll dwarf virus Infecting Upland Cotton (Gossypium hirsutum) in Texas

Plant Disease ◽  
2020 ◽  
Vol 104 (3) ◽  
pp. 998 ◽  
Author(s):  
Olufemi J. Alabi ◽  
Thomas Isakeit ◽  
Robert Vaughn ◽  
David Stelly ◽  
Kassie N. Conner ◽  
...  
Keyword(s):  
Gossypium Hirsutum ◽  
Upland Cotton ◽  
Dwarf Virus ◽  
First Report ◽  
Cotton Leafroll Dwarf Virus

scholarly journals First Report of Cotton leafroll dwarf virus Associated with Cotton Blue Disease Symptoms in Alabama

Plant Disease ◽  
2019 ◽  
Vol 103 (3) ◽  
pp. 592-592 ◽  
Author(s):  
S. Avelar ◽  
D. W. Schrimsher ◽  
K. Lawrence ◽  
J. K. Brown
Keyword(s):  
Dwarf Virus ◽  
Disease Symptoms ◽  
First Report ◽  
Cotton Blue ◽  
Cotton Blue Disease ◽  
Cotton Leafroll Dwarf Virus

scholarly journals First Report of Cotton Leafroll Dwarf Virus in Cotton Fields of South Carolina

Plant Disease ◽  
2020 ◽  
Vol 104 (9) ◽  
pp. 2532 ◽  
Author(s):  
H. Wang ◽  
J. Greene ◽  
J. Mueller ◽  
K. Conner ◽  
A. Jacobson
Keyword(s):  
South Carolina ◽  
Dwarf Virus ◽  
First Report ◽  
Cotton Fields ◽  
Cotton Leafroll Dwarf Virus

scholarly journals First Report of Cotton Leafroll Dwarf Virus in Cotton Plants Affected by Cotton Leafroll Dwarf Disease in North Carolina

Plant Disease ◽  
2020 ◽  
Vol 104 (12) ◽  
pp. 3275
Author(s):  
Lindsey D. Thiessen ◽  
Tyler Schappe ◽  
Marcio Zaccaron ◽  
Kassie Conner ◽  
Jenny Koebernick ◽  
...  
Keyword(s):  
North Carolina ◽  
Dwarf Virus ◽  
First Report ◽  
Cotton Plants ◽  
Dwarf Disease ◽  
Cotton Leafroll Dwarf Virus
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