نتایج جستجو برای: geminiviridae

تعداد نتایج: 399  

2017
Maria Ines Reyes Miguel A. Flores‐Vergara Orlene Guerra‐Peraza Cyprian Rajabu Jigar Desai Yokiko H. Hiromoto‐Ruiz Joseph Ndunguru Linda Hanley‐Bowdoin Susanne Kjemtrup Jose T. Ascencio‐Ibáñez Dominique Robertson

Geminiviruses are DNA viruses that cause severe crop losses in different parts of the world, and there is a need for genetic sources of resistance to help combat them. Arabidopsis has been used as a source for virus-resistant genes that derive from alterations in essential host factors. We used a virus-induced gene silencing (VIGS) vector derived from the geminivirus Cabbage leaf curl virus (Ca...

Journal: :The Horticulture Journal 2021

The tomato leaf curl New Delhi virus (ToLCNDV) is a bipartite begomovirus (genus Begomovirus, family Geminiviridae) that was originally isolated in India, but has become serious threat to various horticultural crops the Indian subcontinent, Southeast Asia, East Middle East, and western Mediterranean Basin. In Basin, ToLCNDV caused huge economic damage cucurbit (cucumber, melon, squash, zucchini...

بیـمــاری پیـچـیـــــدگــــی بــــرگ زرد گـــــوجــــــه‌فـــــرنــگــی (Tomato Yellow Leaf Curl Disease, TYLCD) برای اولین بار همراه با طغیان جمعیت‌های زیادی از سفـیدبالک (Bemisia tabaci) در مزارع گوجـه‌فرنـگی (Solanum esculentum) دره اردن در اواخـر سـال 1930 میلادی گزارش و از اوایل دهه 60 میلادی به یکی از بیماری‌های مهم و خسارت‌زا در بسیاری از مزارع گوجه‌فرنگی دنیا تبدیل گردید. در طی 3 دهه اخ...

ویروس کوتولگی سبزرد نخود (Chickpea chlorotic dwarf virus, CpCDV) از جنس Mastrevirus، تیره Geminiviridae، از مهمترین عوامل ویروسی همراه با عارضه زردی نخود می‌باشد. در سال­ های 1395-1394 تعداد 248 نمونه نخود و عدس با نشانه زردی از پنج استان‌‌ لــرستان، کــرمانشاه، زنجــان، آذربایجان شرقی و غربی انتخاب و از طریق آزمون TBIA و PCR  بررسی شدند. استخراج دی­ان­ای از نمونه­ ها...

Journal: :Agronomy 2021

The Squash Leaf Curl China Virus (SLCCNV) and Tomato New Delhi (ToLCNDV) are species of Begomovirus (whitefly-vectored Geminiviridae) cause serious damage to the cucurbit crops genus Cucurbita in areas South Southeast Asia, across Middle East Mediterranean, respectively. moschata’s inbred line AVPU1426, developed at World Vegetable Center (WorldVeg) from a Bangladeshi landrace through pedigree ...

2016
Jinyan Wang Yafei Tang Yuwen Yang Na Ma Xitie Ling Jialiang Kan Zifu He Baolong Zhang

RNA silencing is a conserved mechanism in plants that targets viruses. Viral small RNAs (vsiRNAs) can be generated from viral double-stranded RNA replicative intermediates within the infected host, or from host RNA-dependent RNA polymerases activity on viral templates. The abundance and profile of vsiRNAs in viral infections have been reported previously. However, the involvement of vsiRNAs dur...

Journal: :Journal of virology 2015
Björn Krenz Kathrin Deuschle Tobias Deigner Sigrid Unseld Gabi Kepp Christina Wege Tatjana Kleinow Holger Jeske

UNLABELLED The C2/AC2 genes of monopartite/bipartite geminiviruses of the genera Begomovirus and Curtovirus encode important pathogenicity factors with multiple functions described so far. A novel function of Abutilon mosaic virus (AbMV) AC2 as a replication brake is described, utilizing transgenic plants with dimeric inserts of DNA B or with a reporter construct to express green fluorescent pr...

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