scholarly journals The Tomato yellow leaf curl virus V2 protein forms aggregates depending on the cytoskeleton integrity and binds viral genomic DNA

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Adi Moshe ◽  
Eduard Belausov ◽  
Annette Niehl ◽  
Manfred Heinlein ◽  
Henryk Czosnek ◽  
...  
Keyword(s):  
Genomic Dna ◽  
Tomato Yellow Leaf ◽  
Yellow Leaf ◽  
Leaf Curl Virus ◽  
Cytoskeleton Integrity ◽  
Leaf Curl

scholarly journals Host GRXC6 restricts Tomato yellow leaf curl virus infection by inhibiting the nuclear export of the V2 protein

2021 ◽  
Vol 17 (8) ◽  
pp. e1009844
Author(s):  
Wenhao Zhao ◽  
Yijun Zhou ◽  
Xueping Zhou ◽  
Xiaofeng Wang ◽  
Yinghua Ji
Keyword(s):  
Plant Growth ◽  
Stress Responses ◽  
Nuclear Export ◽  
Genomic Dna ◽  
Thioredoxin Reductase ◽  
Tomato Yellow Leaf ◽  
Nuclear Accumulation ◽  
Yellow Leaf ◽  
Leaf Curl Virus ◽  
Leaf Curl

Geminiviruses cause serious symptoms and devastating losses in crop plants. With a circular, single-stranded DNA genome, geminiviruses multiply their genomic DNA in the nucleus, requiring the nuclear shuttling of viral proteins and viral genomic DNAs. Many host factors, acting as proviral or antiviral factors, play key roles in geminivirus infections. Here, we report the roles of a tomato glutaredoxin (GRX), SlGRXC6, in the infection of Tomato yellow leaf curl virus (TYLCV), a single-component geminivirus. The V2 protein of TYLCV specifically and preferentially interacts with SlGRXC6 among the 55-member tomato GRX family that are broadly involved in oxidative stress responses, plant development, and pathogen responses. We show that overexpressed SlGRXC6 increases the nuclear accumulation of V2 by inhibiting its nuclear export and, in turn, inhibits trafficking of the V1 protein and viral genomic DNA. Conversely, the silenced expression of SlGRXC6 leads to an enhanced susceptibility to TYLCV. SlGRXC6 is also involved in symptom development as we observed a positive correlation where overexpression of SlGRXC6 promotes while knockdown of SlGRXC6 expression inhibits plant growth. We further showed that SlGRXC6 works with SlNTRC80, a tomato NADPH-dependent thioredoxin reductase, to regulate plant growth. V2 didn’t interact with SlNTRC80 but competed with SlNTR80 for binding to SlGRXC6, suggesting that the V2-disrupted SlGRXC6-SlNTRC80 interaction is partially responsible for the virus-caused symptoms. These results suggest that SlGRXC6 functions as a host restriction factor that inhibits the nuclear trafficking of viral components and point out a new way to control TYLCV infection by targeting the V2-SlGRXC6 interaction.

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

Study of a collection of tomato hybrids with genetic resistance to the yellow leaf curl virus in Southern Russia

2020 ◽  
pp. 30-34
Author(s):  
С.Ф. Гавриш ◽  
Т.А. Редичкина ◽  
А.В. Буц ◽  
Г.М. Артемьева
Keyword(s):  
Resistance Genes ◽  
Molecular Genetic Analysis ◽  
Tomato Yellow Leaf ◽  
Tomato Mosaic Virus ◽  
Average Weight ◽  
Yellow Leaf ◽  
The South ◽  
Economically Valuable Traits ◽  
Leaf Curl Virus ◽  
Leaf Curl

Дана информация об изучении коллекции гибридов F1томата (Solanum lycopersicum L.) зарубежной селекции различных фирм-оригинаторов, рекомендованных производителями семян как толерантные к вирусу желтой курчавости листьев томата. Все гибриды обладали комплексом хозяйственно ценных признаков и набором генов устойчивости к основным заболеваниям томата, в том числе к новому для юга России опасному патогену с максимальным потенциальным риском – вирусу желтой курчавости листьев томата (Tomato yellow leaf curl virus — TYLCV). Исследования проведены в 2017-2018 годах в лаборатории пасленовых культур ООО «НИИСОК» и в лаборатории молекулярной диагностики растений ООО «Семеновод». Всего было протестировано 34 гибрида F1 томата. Гибриды оценивали по совокупности хозяйственно ценных признаков, также проводили молекулярно-генетический анализ на наличие и аллельное состояние основных генов устойчивости: к вирусу табачной мозаики (Tm2а), фузариозному увяданию (I2), вертициллезному увяданию (Ve), к кладоспориозу (Cf9), нематодам (Mi1.2), вирусу бронзовости томата (Sw5), вирусу желтой курчавости листьев томата (Ty3a). Установлено, что все проанализированные гибриды томата с заявленной оригинаторами семян устойчивостью к вирусу желтой курчавости листьев были гетерозиготны по гену Ty3a. На основании проведенных исследований и с учетом требований рынка разработаны модели гибридов F1 томата юга России. Перспективный гибрид томата должен обладать индетерминантным типом роста с укороченными междоузлиями (4,5-5 см) а также хорошей облиственностью. Плоды томата должны быть с красной равномерной окраской без зеленого пятна у плодоножки, с плоскоокруглой или округлой формой плода и со средней массой 220-270 г. Для повышения транспортабельности томатов необходимо, чтобы плоды отличались высокой прочностью и характеризовались хорошей лежкостью. Урожайность гибрида томата должна быть более 30 кг/м2, а товарность - не менее 85%. Гибрид томата должен обладать следующим набором генов устойчивости в гетерозиготном состоянии: Ty3a, Mi1.2, Cf-9, а также в гомозиготном состоянии: Tm2a, I2, Ve. The article provides information on the study of the collection of F1 tomato hybrids (Solanum lycopersicumL.) of foreign breeding from various firms-originators recommended for cultivation in regions with a strong spread of tomato yellow leaf curl virus. All hybrids had a complex of economically valuable traits and a set of genes for resistance to the main diseases of tomato, including a new dangerous pathogen for the South of Russia with a maximum potential risk — the tomato yellow leaf curl virus (TYLCV). The studies were carried out in 2017-2018 in the Solanaceae Laboratory of LLC NIISOK and in the Molecular Diagnostics Laboratory of Plants of LLC Semenovod. A total of 34 F1 tomato hybrids were tested. The hybrids were assessed by a set of economically valuable traits. Molecular genetic analysis was also carried out for the presence and allelic state of the main resistance genes: Tomato mosaic virus (Tm2a), Fusarium wilt (I2), Werticillium wilt (Ve), Cladosporium fulvum (Cf9), Nematodes (Mi1.2), Tomato spotted wilt virus (Sw5), Tomato yellow leaf curl virus (Ty3a). It was found that all the analyzed tomato hybrids with the declared by seed originators resistance to yellow leaf curl virus were heterozygous for the Ty3a gene. Based on the conducted research and taking into account the market requirements, models of F1 tomato hybrids for protected ground for the South of Russia have been developed. A promising tomato hybrid should have an indeterminate growth type with shortened internodes (4.5-5 cm) and good foliage. Tomato fruits should have a uniform red color without green shoulders, with a flat-round or round shape of the fruit and with an average weight of 220-270 g. To increase the transportability of tomatoes, it is necessary that the fruits are highly firm and characterized by good shelf life. The yield of tomato hybrid should be more than 30 kg/m2, and marketability should be at least 85%. The tomato hybrid should have the following set of resistance genes in a heterozygous state: Ty3a, Mi1.2, Cf-9, and also in a homozygous state: Tm2a, I2, Ve.

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 Water Balance, Hormone Homeostasis, and Sugar Signaling Are All Involved in Tomato Resistance to Tomato Yellow Leaf Curl Virus

2014 ◽  
Vol 165 (4) ◽  
pp. 1684-1697 ◽  
Author(s):  
Dagan Sade ◽  
Nir Sade ◽  
Oz Shriki ◽  
Stephen Lerner ◽  
Alem Gebremedhin ◽  
...  
Keyword(s):  
Water Balance ◽  
Tomato Yellow Leaf ◽  
Yellow Leaf ◽  
Sugar Signaling ◽  
Hormone Homeostasis ◽  
Leaf Curl Virus ◽  
Leaf Curl

Ten new nortriterpenes from Euphorbia resinifera and their anti-tomato yellow leaf curl virus activities

Fitoterapia ◽  
2021 ◽  
pp. 104989
Author(s):  
Ning-Dong Zhao ◽  
Yu-Lin Li ◽  
Yu Song ◽  
Bao-Jia Yang ◽  
Xiao Ding ◽  
...  
Keyword(s):  
Tomato Yellow Leaf ◽  
Yellow Leaf ◽  
Leaf Curl Virus ◽  
Leaf Curl

scholarly journals Seed Transmission of Tomato yellow leaf curl virus in White Soybean (Glycine max)

2017 ◽  
Vol 33 (4) ◽  
pp. 424-428 ◽  
Author(s):  
Eui-Joon Kil ◽  
Jungho Park ◽  
Hong-Soo Choi ◽  
Chang-Seok Kim ◽  
Sukchan Lee
Keyword(s):  
Glycine Max ◽  
Seed Transmission ◽  
Tomato Yellow Leaf ◽  
Yellow Leaf ◽  
Leaf Curl Virus ◽  
Leaf Curl

scholarly journals Assessment of the genetic diversity of tomato yellow leaf curl virus

2015 ◽  
Vol 14 (1) ◽  
pp. 529-537 ◽  
Author(s):  
H.J. Wan ◽  
W. Yuan ◽  
R.Q. Wang ◽  
Q.J. Ye ◽  
M.Y. Ruan ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Tomato Yellow Leaf ◽  
Yellow Leaf ◽  
Leaf Curl Virus ◽  
Leaf Curl
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