scholarly journals Screening chilli genotypes for whitefly (Bemisia tabaci Genn.) resistance: A vector for chilli leaf curl virus

2020 ◽  
Vol 8 (1) ◽  
pp. 971-979
Author(s):  
Rajeev Kumar Yadav ◽  
PD Kamala Jayanthi ◽  
Manish Kumar ◽  
P Saravan Kumar ◽  
V Keshava Rao ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
Leaf Curl Virus ◽  
Chilli Leaf Curl Virus ◽  
Leaf Curl

scholarly journals How many begomovirus copies are acquired and inoculated by its vector, whitefly (Bemisia tabaci) during feeding?

PLoS ONE ◽  
2021 ◽  
Vol 16 (10) ◽  
pp. e0258933
Author(s):  
Buddhadeb Roy ◽  
Prosenjit Chakraborty ◽  
Amalendu Ghosh
Keyword(s):  
Bemisia Tabaci ◽  
Absolute Quantification ◽  
New Delhi ◽  
Feeding Duration ◽  
Active Feeding ◽  
Detached Leaves ◽  
Tomato Leaf Curl ◽  
Leaf Curl Virus ◽  
Chilli Leaf Curl Virus ◽  
Leaf Curl

Begomoviruses are transmitted by whitefly (Bemisia tabaci Gennadius, Hemiptera: Aleyrodidae) in a persistent-circulative way. Once B. tabaci becomes viruliferous, it remains so throughout its life span. Not much is known about the copies of begomoviruses ingested and/or released by B. tabaci during the process of feeding. The present study reports the absolute quantification of two different begomoviruses viz. tomato leaf curl New Delhi virus (ToLCNDV, bipartite) and chilli leaf curl virus (ChiLCV, monopartite) at different exposure of active acquisition and inoculation feeding using a detached leaf assay. A million copies of both the begomoviruses were acquired by a single B. tabaci with only 5 min of active feeding and virus copy number increased in a logarithmic model with feeding exposure. Whereas, a single B. tabaci could inoculate 8.21E+09 and 4.19E+11 copies of ToLCNDV and ChiLCV, respectively in detached leaves by 5 min of active feeding. Virus copies in inoculated leaves increased with an increase in feeding duration. Comparative dynamics of these two begomoviruses indicated that B. tabaci adult acquired around 14-fold higher copies of ChiLCV than ToLCNDV 24 hrs post feeding. Whereas, the rate of inoculation of ToLCNDV by individual B. tabaci was significantly higher than ChiLCV. The study provides a better understanding of begomovirus acquisition and inoculation dynamics by individual B. tabaci and would facilitate research on virus-vector epidemiology and screening host resistance.

Control of the Bemisia tabaci/Tomato yellow leaf curl virus complex on protected tomato crops in Algarve (Portugal)*

EPPO Bulletin ◽  
2002 ◽  
Vol 32 (1) ◽  
pp. 31-35
Author(s):  
A. F. Arsenio ◽  
E. Neto ◽  
N. Ramos ◽  
S. Mangerico ◽  
E. Fortunato ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
Tomato Yellow Leaf ◽  
Yellow Leaf ◽  
Virus Complex ◽  
Leaf Curl Virus ◽  
Leaf Curl

scholarly journals Rapid accumulation and low degradation: key parameters of Tomato yellow leaf curl virus persistence in its insect vector Bemisia tabaci

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Nathalie Becker ◽  
Loup Rimbaud ◽  
Frédéric Chiroleu ◽  
Bernard Reynaud ◽  
Gaël Thébaud ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
Tomato Yellow Leaf ◽  
Insect Vector ◽  
Yellow Leaf ◽  
Virus Persistence ◽  
Rapid Accumulation ◽  
Leaf Curl Virus ◽  
Leaf Curl

Spray application of a cocktail of dsRNAs reduces infection of chilli leaf curl virus in Nicotiana benthamiana

2021 ◽  
Author(s):  
Oinam Washington Singh ◽  
Dipinte Gupta ◽  
Bhawana Joshi ◽  
Anirban Roy ◽  
Sunil Kumar Mukherjee ◽  
...  
Keyword(s):  
Nicotiana Benthamiana ◽  
Spray Application ◽  
Leaf Curl Virus ◽  
Chilli Leaf Curl Virus ◽  
Leaf Curl

scholarly journals The Influence of Visual and Olfactory Cues in Host Selection for Bemisia tabaci Biotype B in the Presence or Absence of Tomato Yellow Leaf Curl Virus

Insects ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 115 ◽  
Author(s):  
Nicholas Johnston ◽  
Xavier Martini
Keyword(s):  
Bemisia Tabaci ◽  
Host Selection ◽  
Tomato Yellow Leaf ◽  
Olfactory Cues ◽  
Yellow Leaf ◽  
Agricultural Pests ◽  
Sensory Stimuli ◽  
Infected Tomato ◽  
Leaf Curl Virus ◽  
Leaf Curl

The silverleaf whitefly, Bemisia tabaci, is one of the most destructive agricultural pests in the world, vectoring a large number of devastating viruses, including Tomato Yellow Leaf Curl Virus (TYLCV). When selecting a host, B. tabaci is primarily influenced by a range of visual and olfactory cues. Therefore, elucidating how such cues become modified in the presence of whitefly-vectored begomoviruses is critical to better understanding the epidemiology of many economically important diseases. The goal of this study was to determine how both visual and odor cues interact in the presence of TYLCV. In Y-tube olfactometer assays, whiteflies were submitted to a range of isolated visual and olfactory cues to determine behavioral changes. B. tabaci choices were then compared to both stimuli combined in the presence or absence of TYLCV. Under visual stimuli only, B. tabaci exhibited a visual attraction to the color yellow, TYLCV-infected tomato leaves, and TYLCV-infected tomato volatiles. Attraction was the strongest overall when both visual and olfactory cues from TYLCV-symptomatic tomato plants were combined, as opposed to a single isolated cue. These results highlight the importance of both sensory stimuli during B. tabaci host selection in the presence of an associated begomovirus.

scholarly journals Bio-rational management of whitefly (Bemisia tabaci) for suppressing tomato yellow leaf curl virus

2016 ◽  
Vol 41 (4) ◽  
pp. 583-597
Author(s):  
MM Alam ◽  
MN Islam ◽  
MZ Haque ◽  
R Humayun ◽  
KM Khalequzzaman
Keyword(s):  
Bemisia Tabaci ◽  
Untreated Control ◽  
Agricultural Research ◽  
Tomato Yellow Leaf ◽  
Diseased Plant ◽  
Strong Positive Correlation ◽  
Yellow Leaf ◽  
Rational Management ◽  
Leaf Curl Virus ◽  
Leaf Curl

Whitefly (Bemisia tabaci) is the vector of tomato yellow leaf curl virus (TYLCV), is a serious pest of vegetables and other crops worldwide. The experiment was conducted at Bangladesh Agricultural Research institute (BARI) during two consecutive years of 2009 and 2010 to select a suitable bio-rational management practice against white fly, transmitting TYLCV. Treatments comprising tomato variety Ratan with diseased plant uprooting, spraying admire, applying admire on trap crop (marigold), spraying neem, sesame and mustard oil with trix and the untreated control were used in this experiment. The variety Opurba with similar materials as described above was used. Percent virus infected tomato plants ranged from 1.33 to 19.00 in two consecutive years, where the highest infection was recorded in control plot with variety Opurba and the lowest was recorded in variety Ratan treated with Admire. Consequently, the highest yield (47.70 and 52.36 t ha-1 in 1st and 2nd year, respectively) in the plots of variety Ratan treated with admire and the lowest yield was recorded in untreated control plots with variety Opurba (14.75 and 30.30 t ha-1) for the two consecutive years. A strong positive correlation was observed between whitefly population and % TYLCV infection for both the years and both varieties of tomato. While a negative correlation was observed between % TYLCV infection with number of fruits plants-1 and yield (t ha-1) for both the years and in both varieties of tomato. These results are consistent with the occurrences of TYLCV, which have been associated with the percent virus infection in relation to yield and yield contributing characters of tomato.Bangladesh J. Agril. Res. 41(4): 583-597, December 2016

Identification of Chilli leaf curl virus associated with tomato leaf curl betasatellite infecting Mentha in Oman

2019 ◽  
Vol 41 (2) ◽  
pp. 291-295 ◽  
Author(s):  
Muhammad Shafiq Shahid ◽  
Amir Raza ◽  
Abdullah M. Al-Sadi ◽  
Rob W. Briddon
Keyword(s):  
Tomato Leaf ◽  
Tomato Leaf Curl ◽  
Leaf Curl Virus ◽  
Chilli Leaf Curl Virus ◽  
Leaf Curl
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