High Incidence of Tobacco Streak Virus in Tobacco and Its Transmission byMicrocephalothrips abdominalisand Pollen fromAgeratum houstonianum

Plant Disease ◽  
1991 ◽  
Vol 75 (5) ◽  
pp. 450 ◽  
Author(s):  
R. S. Greber
Keyword(s):  
Tobacco Streak Virus ◽  
Streak Virus ◽  
High Incidence

Re-emergence of Tobacco streak virus Infecting Soybean in the United States and Canada

2016 ◽  
Vol 17 (2) ◽  
pp. 92-94 ◽  
Author(s):  
Melissa D. Irizarry ◽  
Carol L. Groves ◽  
Manjula G. Elmore ◽  
Carl A. Bradley ◽  
Ranjit Dasgupta ◽  
...  
Keyword(s):  
Yield Loss ◽  
The United States ◽  
Tobacco Streak Virus ◽  
Streak Virus ◽  
Plant Host ◽  
Seed Moisture ◽  
High Incidence ◽  
Plant Maturity ◽  
Favorable Conditions ◽  
Variable Weather

Tobacco streak virus (TSV) has an extensive plant host range, but until recently has not been a common problem in North American soybean. TSV is associated with bud blight and yield loss due to reduced plant height and density, and delayed seed development and plant maturity. TSV has been reported in recent years in Illinois, Iowa, Kansas, and Wisconsin, as well as Ontario, Canada. Presence of the virus was confirmed by ELISA. In an Iowa field with high incidence, regression analysis indicated a significant positive relationship between incidence and seed moisture. TSV is seed and pollen transmitted, as well as being spread by thrips. Increasingly variable weather creating favorable conditions for thrips may be facilitating the rise of TSV. The combination of increased incidence of TSV with associated potential for yield loss and few known management methods brings attention to the need for further research. Accepted for publication 14 April 2016. Published 26 April 2016.

scholarly journals Seasonal Progression and Agronomic Impact of Tobacco streak virus on Soybean in Wisconsin

Plant Disease ◽  
2005 ◽  
Vol 89 (4) ◽  
pp. 391-396 ◽  
Author(s):  
P. F. Rabedeaux ◽  
J. M. Gaska ◽  
N. C. Kurtzweil ◽  
C. R. Grau
Keyword(s):  
Yield Loss ◽  
Plant Density ◽  
Tobacco Streak Virus ◽  
Streak Virus ◽  
General Survey ◽  
Cultivar Selection ◽  
High Incidence ◽  
Significant Yield ◽  
Weight Data ◽  
100 Seed Weight

Pod necrosis and dieback of terminal portions of stems, commonly called bud blight, are observed in soybean fields and associated with Tobacco streak virus (TSV), an understudied virus of soybean. Furthermore, many TSV-infected plants are asymptomatic. The objectives of this study were to characterize the distribution and seasonal progress of TSV-infected plants in both natural and controlled epidemics, and the agronomic impact of TSV on soybean in plots with controlled introduction of inoculum. Incidence of TSV-positive samples ranged from 17 to 56% in a general survey. In the presence of natural sources of inoculum, the incidence of TSV-infected plants ranged from 10 to 95% depending on cultivar and location, and peaked at growth stage R2, but detection dropped dramatically at R5. During 2001, significant yield loss and incidence of mottled seed were associated with TSV, but results were confounded by a high incidence of SMV. In 2002, SMV was controlled by cultivar selection, and a 25% reduction in grain yield was attributable to TSV. The incidence of mottled seed and green stem syndrome were low in the presence of TSV. Reductions in plant density and final plant height contributed to reduced yields. However, no significant differences were found in seed number per plant and 100-seed weight. Data indicate that plant mortality was the main mechanism by which TSV caused yield loss in induced epidemics.

scholarly journals Incidence of Raspberry Bushy Dwarf Virus in Breeding Plots of Red Raspberry

HortScience ◽  
1995 ◽  
Vol 30 (1) ◽  
pp. 113-114 ◽  
Author(s):  
M.M. Stahler ◽  
F.J. Lawrence ◽  
R.R. Martin
Keyword(s):  
Screening Method ◽  
Rubus Idaeus ◽  
Dwarf Virus ◽  
Tobacco Streak Virus ◽  
Enzyme Linked Immunosorbent Assay ◽  
Streak Virus ◽  
Red Raspberry ◽  
Program Selection ◽  
High Incidence ◽  
Early Seedling

More than 300 red raspberry cultivars and selections were screened for raspberry (Rubus idaeus L.) bushy dwarf virus (RBDV), tobacco streak virus (TSV), and tomato ringspot virus (TomRSV) using enzyme-linked immunosorbent assay in three naturally infected breeding program selection plots at Corvallis, Ore. All genotypes tested negative for TSV and TomRSV. The RBDV incidence in primocane-fruiting cultivars and selections was 67%; in floricane-fruiting genotypes, it was 34%. The pattern of RBDV infection in the field showed no discernible trend. The high incidence may have been due to use of infected parents, propagation of infected genotypes, and pollen transmission. `Willamette', considered to be immune to the common strain of RBDV, along with 14 clones that had been in the field 10 years or longer, tested negative. The high incidence of RBDV in the breeding plots may provide an opportunity to identify resistant parents for breeding programs. An early seedling screening method for RBDV susceptibility is desirable to eliminate highly susceptible genotypes from the program and maintain a lower incidence of RBDV within the breeding plots.

Prevalence and Molecular Characterization Coat Protein Gene of Tobacco streak virus Causing Peanut Stem Necrosis Disease in Coastal and Rayalaseema Districts of Andhra Pradesh, South-India

2021 ◽  
Author(s):  
K. Saratbabu ◽  
K. Vemana ◽  
A.K. Patibanda ◽  
B. Sreekanth ◽  
V. Srinivasa Rao
Keyword(s):  
Coat Protein ◽  
Molecular Characterization ◽  
Andhra Pradesh ◽  
Disease Incidence ◽  
Tobacco Streak Virus ◽  
Enzyme Linked Immunosorbent Assay ◽  
Streak Virus ◽  
Rt Pcr ◽  
Cp Gene ◽  
Stem Necrosis

Background: Peanut stem necrosis disease (PSND) caused by Tobacco streak virus (TSV) is a major constraint for groundnut production in Andhra Pradesh (A.P.). However, studies on prevalence and spread of the disease confined to only few districts of A.P. with this background current study focused on incidence and spread of the disease in entire state of A.P. Further an isolate of TSV occurring in A.P. characterized on the basis of genetic features by comparing with other TSV isolates originated from different hosts and locations from world.Methods: Roving survey was conducted during kharif 2017-18 in groundnut growing districts of Andhra Pradesh (A.P.) for peanut stem necrosis disease incidence. Groundnut plants showing PSND symptoms were collected and tested with direct antigen coating enzyme linked immunosorbent assay (DAC-ELISA). Groundnut samples found positive by ELISA once again tested by reverse transcription polymerase chain reaction (RT-PCR). The representative TSV-GN-INDVP groundnut isolate from Prakasham district was maintained on cowpea seedlings by standard sap inoculation method in glasshouse for further molecular characterization. The Phylogenetic tree for coat protein (CP) gene was constructed using aligned sequences with 1000 bootstrap replicates following neighbor-joining phylogeny.Result: Thirty-eight (52.7%) of seventy-two groundnut samples collected from different locations in A.P were given positive reaction to TSV by DAC-ELISA. For the first time, PSND incidence observed in coastal districts (Krishna, Guntur, Sri Pottisriramulu Nellore, Prakasham) of A.P. Maximum PSND incidence recorded from Bathalapalli (22.2%) and the minimum incidence in Mulakalacheruvu (4.1%). The coat protein (CP) gene of TSV-GN-INDVP groundnut isolate was amplified by RT-PCR and it shared maximum per cent nucleotide identity (97.51-98.62%) with TSV isolates from groundnut and other different crops reported in India. All Indian isolates cluster together irrespective of crop and location based on the phylogenetic analysis.

scholarly journals The host range of Tobacco streak virus in India and transmission by thrips

2003 ◽  
Vol 142 (3) ◽  
pp. 365-368 ◽  
Author(s):  
R D V J PRASADA RAO ◽  
A S REDDY ◽  
S V REDDY ◽  
K THIRUMALA-DEVI ◽  
S CHANDER RAO ◽  
...  
Keyword(s):  
Host Range ◽  
Tobacco Streak Virus ◽  
Streak Virus

scholarly journals First Report of Tobacco Streak Virus Infecting Summer Squash in Georgia, U.S.A

Plant Disease ◽  
2019 ◽  
Vol 103 (6) ◽  
pp. 1442 ◽  
Author(s):  
S. Bag ◽  
A. Tabassum ◽  
J. Brock ◽  
B. Dutta
Keyword(s):  
Tobacco Streak Virus ◽  
Streak Virus ◽  
First Report ◽  
Summer Squash
Sign in / Sign up

Export Citation Format

Share Document