Reduction of viral load in whitefly (Bemisia tabaci Gen.) feeding on RNAi-mediated bean golden mosaic virus resistant transgenic bean plants

2015 ◽  
Vol 210 ◽  
pp. 245-247 ◽  
Author(s):  
Nayhanne T. de Paula ◽  
Josias C. de Faria ◽  
Francisco J.L. Aragão
Keyword(s):  
Viral Load ◽  
Mosaic Virus ◽  
Bemisia Tabaci ◽  
Bean Golden Mosaic Virus ◽  
Bean Plants

scholarly journals A greenhouse screening technique for bean golden mosaic virus

1969 ◽  
Vol 80 (1-2) ◽  
pp. 65-72
Author(s):  
Cristóbal Adames-Mora ◽  
James S. Beaver ◽  
O. Díaz
Keyword(s):  
Mosaic Virus ◽  
Dry Bean ◽  
Bean Golden Mosaic Virus ◽  
Inoculation Method ◽  
Snap Beans ◽  
Stage Of Development ◽  
Bean Plants ◽  
Resistant Lines ◽  
The Caribbean ◽  
Southern Florida

Dry bean (Phaseolus vulgaris L.) yield in the Caribbean and snap bean production in southern Florida are threatened by bean golden mosaic virus (BGMV). Effective screening techniques are needed in order to transfer BGMV resistance into red kidney, red mottied and snap beans. A greenhouse inoculation method for BGMV using viruiiferous whiteflies (Bemisia tabaci Genn.) has been developed. The use of this inoculation method insures that bean plants are inoculated at the same stage of development with a uniform amount of inoculum. In the greenhouse, the reaction of bean plants to BGMV could be determined within 30 days after planting, whereas field evaluations require up to 65 days. In addition, the BGMV reaction of bean genotypes inoculated in different experiments was found to be repeatable. In susceptible genotypes, such as PC50, typical BGMV symptoms began to appear between five to eight days after inoculation (DAI). In the resistant line DOR364, symptoms did not begin to appear until 10 to 12 DAI and the severity of the symptoms was less than in susceptible genotypes. Pompadour G and lines derived from crosses with DOR303 showed a dwarfing response when inoculated with BGMV.The BGMV resistant lines derived from crosses with A429 did not develop symptoms when inoculated with the viruliferous whiteflies.This greenhouse inoculation technique may facilitate the effort to combine different forms of BGMV resistance.

Evidence for a divided genome in bean golden mosaic virus, a geminivirus

Nature ◽  
1981 ◽  
Vol 289 (5795) ◽  
pp. 324-326 ◽  
Author(s):  
S. Haber ◽  
M. Ikegami ◽  
N. B. Bajet ◽  
Robert M. Goodman
Keyword(s):  
Mosaic Virus ◽  
Bean Golden Mosaic Virus

scholarly journals Mosca-Branca, Bemisia tabaci (Genn.) (Hemiptera: Aleyrodidae) em feijoeiro: Características gerais, bioecologia e métodos de controle

2017 ◽  
Vol 10 (1) ◽  
pp. 01-08
Author(s):  
Anderson Gonçalves da Silva ◽  
Arlindo Leal Boiça Junior ◽  
Bruno Henrique Sardinha de Souza ◽  
Eduardo Neves Costa ◽  
James da Silva Hoelhert ◽  
...  
Keyword(s):  
Common Bean ◽  
Bemisia Tabaci ◽  
Crop Production ◽  
Insect Pests ◽  
Economic Losses ◽  
Common Beans ◽  
Bean Plants ◽  
De Se ◽  
Before And After ◽  
The Common

Resumo. A cultura do feijoeiro pode ser infestada por insetos que afetam a produção antes e após a colheita, tendo como estimativa de perdas causadas nos rendimentos pelas pragas variando de 33 a 86%. Dentre essas pragas a mosca-branca Bemisia tabaci (Genn.) Autor merece destaque. Esta ocasiona danos diretos decorrentes de sua alimentação e indiretos que ocorrem por meio da excreção açucarada de honeydew ou “mela” e simbiose com a fumagina. No entanto, o dano mais sério causado pela B. tabaci é a transmissão de viroses como o mosaico-dourado-do-feijoeiro, provocando perdas econômicas que podem variar de 30% a 100%. Desse modo, o objetivo do presente estudo é disponibilizar informações a respeito de aspectos importantes de B. tabaci, como: histórico e distribuição geográfica, bioecologia e dinâmica populacional, plantas hospedeiras, métodos de controle adotados, dentre outros, a fim de se fornecer subsídios para futuras pesquisas sobre a mosca-branca em feijão.Whitefly Bemisia tabaci (Genn.) (Hemiptera: Aleyrodidae) in common beans: General characteristics, bioecology, and methods of controlAbstract. Common bean plants are infested by insects, which can ultimately affect the crop production before and after harvest, with estimated losses ranging from 33 to 86%. Among the insect pests infesting the common beans the whitefly Bemisia tabaci (Genn.) stands out. This species cause direct injury by feeding on the plants and indirect injury by excreting sugary honeydew that is after colonized by the sooty mold. In addition, the most serious damage caused by B. tabaci is the transmission of virus diseases, especially the common bean golden mosaic, responsible for economic losses varying from 30 to 100%. This review aims at providing information on important aspects of B. tabaci including its geographical distribution, bioecology, population dynamics, host plants, and methods of pest control. We expect that this review can provide valuable subsidies for future studies on the whitefly in common beans.

scholarly journals Seleção de progênies de feijoeiro F4 resistentes ao Bean golden mosaic virus

2005 ◽  
Vol 30 (3) ◽  
pp. 279-285 ◽  
Author(s):  
Fernando C. Juliatti ◽  
Simone A. Moraes ◽  
Heyder D. Silva ◽  
Márcio H. C. Borges
Keyword(s):  
Phaseolus Vulgaris ◽  
Mosaic Virus ◽  
Bean Golden Mosaic Virus

O objetivo deste trabalho foi identificar progênies de feijoeiro (Phaseolus vulgaris) na geração F4 provenientes do cruzamento entre cultivares resistentes ao Bean golden mosaic virus (BGMV). Os parentais foram as cultivares Carioca-MG (suscetível) e IAPAR-57, IAPAR-72 e IAPAR-65 (resistentes). A população de 480 progênies foi obtida pelo modelo dialélico completo. Estas foram semeadas em campo sob inoculação natural e estudada ao nível de plantas individuais para cálculo do índice de doença de BGMV (I.D.) Em relação ao I.D. médio, as progênies foram mais resistentes do que seus parentais (2,62 e 2,87), respectivamente. O processo de seleção foi realizado pelo I.D. (sigmag² = 0,2729 e h a² = 0,3953), onde foram obtidas famílias com grãos do tipo carioca e com I.D. inferior aos parentais resistentes. Segundo o GS% estimado, não serão necessárias muitas progênies ou famílias para se obter progresso com seleção para BGMV. O genótipo IAPAR-72 foi o parental superior na obtenção de progênies de maior resistência (menores I.D.). Possivelmente o mecanismo de resistência é do tipo resistência parcial.

scholarly journals Detection of Bean golden mosaic virus in Fabaceae family plants / Detecção de Bean golde nmosaic vírus em plantas da família Fabaceae

2021 ◽  
Vol 4 (1) ◽  
pp. 1021-1032
Author(s):  
Aline Taiane de Freitas-Vanzo ◽  
Camila de Cassia da Silva ◽  
Vitória Carolina Antunes Chaves ◽  
Mateus Henrique Garcia ◽  
Luana Thomaz de Aquino ◽  
...  
Keyword(s):  
Mosaic Virus ◽  
Bean Golden Mosaic Virus

Transmission and pathogenicity of papaya virus E: insights from an experimental papaya orchard

Plant Disease ◽  
2021 ◽  
Author(s):  
Juan F Cornejo-Franco ◽  
Edison Gonzalo Reyes-Proaño ◽  
Dimitre Mollov ◽  
Joseph Mowery ◽  
Diego Fernando Quito-Avila
Keyword(s):  
Mosaic Virus ◽  
Bemisia Tabaci ◽  
Carica Papaya ◽  
Virus Transmission ◽  
Ringspot Virus ◽  
Mixed Infections ◽  
Papaya Ringspot Virus ◽  
Greenhouse Experiments ◽  
Virus Prevalence ◽  
Macroptilium Lathyroides

A study was conducted to investigate epidemiological aspects of papaya virus E (PpVE), a cytorhabdovirus commonly found in papaya (Carica papaya L.) plantings of Ecuador. Besides papaya, PpVE was found in three Fabaceae weeds, including Rhynchosia minima, Centrosema plumieri and Macroptilium lathyroides; the latter being the species with the highest virus prevalence. Greenhouse experiments showed that in M. lathyroides, single infections of PpVE induce only mild leaf mosaic, whereas in mixed infections with cowpea severe mosaic virus, PpVE contributes to severe mosaic. In papaya, PpVE did not induce noticeable symptoms in single or mixed infections with papaya ringspot virus. Transmission experiments confirmed that whiteflies (Bemisia tabaci) transmit PpVE in a semi-persistent, non-propagative manner.

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