Host‐Plant Viral Infection Effects on Arthropod‐Vector Population Growth, Development and Behaviour: Management and Epidemiological Implications

Colvin, John; Omongo, Christopher; Govindappa, M.; Stevenson, Philip C.; Maruthi, M. N.; Gibson, Gabriella; Seal, Susan; Muniyappa, V.

doi:10.1016/s0065-3527(06)67011-5

Cited by 148 publications

(149 citation statements)

References 89 publications

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“…The interactions between plant viruses and insect vectors have received great attention worldwide because of their importance in both agriculture and scientific research (10,24,27,31,51). The most economically important insect vectors are restricted to insects of a few hemipteran families, such as aphids and whiteflies (27).…”

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confidence: 99%

“…The most severe damage is its transmission of begomoviruses (family Geminiviridae, genus Begomovirus), the largest and most economically important group of plant viruses in the tropical and subtropical agroecosystems worldwide (20,41,48,62,76). B. tabaci can exclusively transmit 115 species of begomoviruses in a persistent-circulative mode (27), and epidemics of begomoviruses are usually associated with outbreaks of MEAM1 (10,31,76). In view of their importance, the begomoviruses and whiteflies have been used as an excellent model to study plant virusinsect vector interactions (10,12,31).…”

mentioning

confidence: 99%

“…B. tabaci can exclusively transmit 115 species of begomoviruses in a persistent-circulative mode (27), and epidemics of begomoviruses are usually associated with outbreaks of MEAM1 (10,31,76). In view of their importance, the begomoviruses and whiteflies have been used as an excellent model to study plant virusinsect vector interactions (10,12,31).…”

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confidence: 99%

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Global Analysis of the Transcriptional Response of Whitefly to Tomato Yellow Leaf Curl China Virus Reveals the Relationship of Coevolved Adaptations

Luan

Varela

et al. 2011

J Virol

161

173

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The begomoviruses are the largest and most economically important group of plant viruses transmitted exclusively by the whitefly Bemisia tabaci in a circulative, persistent manner. The circulation of the viruses within the insect vectors involves complex interactions between virus and vector components; however, the molecular mechanisms of these interactions remain largely unknown. Here we investigated the transcriptional response of the invasive B. tabaci Middle East-Asia Minor 1 species to Tomato yellow leaf curl China virus (TYLCCNV) using Illumina sequencing technology. Results showed that 1,606 genes involved in 157 biochemical pathways were differentially expressed in the viruliferous whiteflies. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis indicated that TYLCCNV can perturb the cell cycle and primary metabolism in the whitefly, which explains the negative effect of this virus on the longevity and fecundity of B. tabaci. Our data also demonstrated that TYLCCNV can activate whitefly immune responses, such as autophagy and antimicrobial peptide production, which might lead to a gradual decrease of viral particles within the body of the viruliferous whitefly. Furthermore, PCR results showed that TYLCCNV can invade the ovary and fat body tissues of the whitefly, and Lysotracker and Western blot analyses revealed that the invasion of TYLCCNV induced autophagy in both the ovary and fat body tissues. Surprisingly, TYLCCNV also suppressed the whitefly immune responses by downregulating the expression of genes involved in Toll-like signaling and mitogenactivated protein kinase (MAPK) pathways. Taken together, these results reveal the relationship of coevolved adaptations between begomoviruses and whiteflies and will provide a road map for future investigations into the complex interactions between plant viruses and their insect vectors.

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confidence: 99%

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confidence: 99%

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Global Analysis of the Transcriptional Response of Whitefly to Tomato Yellow Leaf Curl China Virus Reveals the Relationship of Coevolved Adaptations

Luan

Varela

et al. 2011

J Virol

161

173

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“…However A. hispidum, A. viridis and Parthenium hysterophorus could induce early symptom expression as compared to other weeds tested. This difference in expression of virus symptoms could be associated with the insect preference and also due to host biochemical compositions interfere with virus multiplications (Colvin et al, 2006;Sharma et al, 2008). Similarly tomato leaf curl begomovirus (ToLCV) from tomato was successfully transmitted to weeds by B. tabaci in a varied period of incubation with A. hispidum, Ageratum conyzoides, Bidens biternata, Conyza stricta, Datura stramonium, Euphorbia geniculata, Oxalis corniculata, P. hysterophorus, Solanum nigrum, Sonchus brachyotis, Stachyterpicta indica and Synedrella nodiflora and tobacco (N. Benthamiana) (Ramappa et al, 1998 Sunflower,3: Chilli;5: tomato;6: Tobacco;M: 1KB Ladder;1: A. viridis;3: A. hispidum;6: D. stramonium;9: P. hysterouphorus.…”

Section: Resultsmentioning

confidence: 99%

Biological and molecular evidences on host range of leaf curl begomovirus disease of sunflower (Helianthus annuus L.)

Vindyashree

Govindappa

Ghante

et al. 2015

JANS

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Abstract:The present study was conducted to identify the alternate hosts of new leaf curl virus disease of sunflower. In the present study several crops and weed hosts were cross inoculated with leaf curl virus of sunflower under laboratory through insect vector whitefly (Bemisia tabaci), further all inoculated samples were retested (3-4 weeks after inoculation) by molecular based Polymerse chain reaction diagnosis for the presence of virus. The results revealed that the causal virus of the disease was successfully transmitted from sunflower to sunflower (Helianthus annuus), tomato (Solanum lycopersicum) and tobacco (Nicotiana tabacum L) and weed hosts such as Acanthospermum hispidum, Amaranthus viridis and Parthenium hysterophorus in a short incubation period (2-3 weeks after inoculation), while on other hosts Chilli (Capsicum annuum L) and Datura stramonium, infection occurs in delayed incubation period. Further molecular analysis thorough polymerase chain reaction (PCR) diagnostic technique using virus specific primers also confirmed the presence of coat protein (CP) of leaf curl begomovirus in virus inoculated hosts viz., chilli, sunflower, tomato, and tobacco and weed hosts such as Acanthospermum hispidum, Amaranthus viridis, Datura stramonium and Parthenium hysterophorus. Thus, findings substantiate that the above hosts are major sources of the virus inoculum and served as potential alternate hosts of the disease during the off season.

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“…Up to 100-fold increases in B. tabaci abundance have been recorded in CMD pandemic-affected regions of East and Central Africa, including Uganda, western Kenya, north-western Tanzania, Rwanda, Burundi and eastern DRC (Legg et al, 2006). Evidence has been presented for the association of specific genotypes of B. tabaci with the cassava virus pandemics of East and Central Africa (Legg et al, 2002(Legg et al, , 2014b, although it has also been hypothesized that B. tabaci population increases are a consequence of synergistic interactions with CMD-infected cassava host plants (Colvin et al, 2006). Whichever is the case, the upsurge in B. tabaci population is incontrovertible and appears to be the key driver of the new mid-altitude outbreaks of CBSD (Legg et al, , 2014b.…”

Section: Current Status Of Cbsd In Africa and Effects On Yieldmentioning

confidence: 99%

Cassava brown streak disease: a threat to food security in Africa

Patil

Legg

Kanju

et al. 2015

Journal of General Virology

100

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Host‐Plant Viral Infection Effects on Arthropod‐Vector Population Growth, Development and Behaviour: Management and Epidemiological Implications

Cited by 148 publications

References 89 publications

Global Analysis of the Transcriptional Response of Whitefly to Tomato Yellow Leaf Curl China Virus Reveals the Relationship of Coevolved Adaptations

Global Analysis of the Transcriptional Response of Whitefly to Tomato Yellow Leaf Curl China Virus Reveals the Relationship of Coevolved Adaptations

Biological and molecular evidences on host range of leaf curl begomovirus disease of sunflower (Helianthus annuus L.)

Cassava brown streak disease: a threat to food security in Africa

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