scholarly journals Tomato yellow leaf curl virus: No evidence for replication in the insect vector Bemisia tabaci

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Sonia Sánchez-Campos ◽  
Edgar A. Rodríguez-Negrete ◽  
Lucía Cruzado ◽  
Ana Grande-Pérez ◽  
Eduardo R. Bejarano ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
Tomato Yellow Leaf ◽  
Insect Vector ◽  
Yellow Leaf ◽  
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

scholarly journals Molecular variation of tomato yellow leaf curl virus in the insect vector Bemisia tabaci

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Xiuling Yang ◽  
Bi Wang ◽  
Junbo Luan ◽  
Yan Xie ◽  
Shusheng Liu ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
Tomato Yellow Leaf ◽  
Insect Vector ◽  
Yellow Leaf ◽  
Molecular Variation ◽  
Leaf Curl Virus ◽  
Leaf Curl

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 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

scholarly journals Rate of Tomato yellow leaf curl virus Translocation in the Circulative Transmission Pathway of its Vector, the Whitefly Bemisia tabaci

2001 ◽  
Vol 91 (2) ◽  
pp. 188-196 ◽  
Author(s):  
Murad Ghanim ◽  
Shai Morin ◽  
Henryk Czosnek
Keyword(s):  
Salivary Glands ◽  
Bemisia Tabaci ◽  
Virus Genome ◽  
Tomato Yellow Leaf ◽  
Yellow Leaf ◽  
Tomato Plants ◽  
Hemolymph Sample ◽  
Infected Tomato ◽  
Leaf Curl Virus ◽  
Leaf Curl

Whiteflies (Bemisia tabaci, biotype B) were able to transmit Tomato yellow leaf curl virus (TYLCV) 8 h after they were caged with infected tomato plants. The spread of TYLCV during this latent period was followed in organs thought to be involved in the translocation of the virus in B. tabaci. After increasing acquisition access periods (AAPs) on infected tomato plants, the stylets, the head, the midgut, a hemolymph sample, and the salivary glands dissected from individual insects were subjected to polymerase chain reaction (PCR) without any treatment; the presence of TYLCV was assessed with virus-specific primers. TYLCV DNA was first detected in the head of B. tabaci after a 10-min AAP. The virus was present in the midgut after 40 min and was first detected in the hemolymph after 90 min. TYLCV was found in the salivary glands 5.5 h after it was first detected in the hemolymph. Subjecting the insect organs to immunocapture-PCR showed that the virus capsid protein was in the insect organs at the same time as the virus genome, suggesting that at least some TYLCV translocates as virions. Although females are more efficient as vectors than males, TYLCV was detected in the salivary glands of males and of females after approximately the same AAP.

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