微针辅助传递黄瓜(Cucurbita pepo)中克隆的葫芦叶皱缩病毒成分。

IF 2.2 4区 医学 Q3 BIOCHEMICAL RESEARCH METHODS Journal of virological methods Pub Date : 2024-06-25 DOI:10.1016/j.jviromet.2024.114992
Saritha R. Kavalappara , Ragunathan Devendran , Alvin M. Simmons , Sudeep Bag
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引用次数: 0

摘要

葫芦茎叶皱缩病毒(CuLCrV)是美国葫芦感染的主要病毒之一。对作物进行病毒接种的可行程序是筛选抗病毒能力的先决条件。由于葫芦皱叶病毒(CuLCrV)在重要经济作物上的机械(非载体介导)感染效率很低,因此目前通过带毒粉虱传播来筛选 CuLCrV 抗性既费力又费时。我们在植物表达二元载体 pCambia2300 中构建了来自美国佐治亚州的 CuLCrV 分离物的传染性部分串联重复构建体,并将其转化到农杆菌菌株 EHA105 中。将这一构建体农用渗透到蚕豆(Phaseolus vulgaris L.)叶片背面会产生 CuLCrV 特有的系统感染,但这一方法在黄瓜上并不成功。不过,我们报告了一种在南瓜中建立的非常有效且可重复的接种程序,即用微针刺伤叶片,然后用含有感染性病毒构建体的细胞悬浮液摩擦叶片。
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Microneedle assisted delivery of the cloned components of cucurbit leaf crumple virus in yellow squash (Cucurbita pepo)

Cucurbit leaf crumple virus (CuLCrV) is among the prominent viruses infecting cucurbits in the USA. Attainable procedures of virus inoculation to crops are prerequisite for screening of resistance against the virus. Because mechanical (non-vector-mediated) infection by cucurbit leaf crumple virus (CuLCrV) is inefficient in economically important crops, screening for CuLCrV resistance is currently laborious and time-consuming using transmission by viruliferous whiteflies. We constructed an infectious partial tandem repeat construct of an isolate of CuLCrV from Georgia, USA, in the plant expression binary vector pCambia2300 and transformed it into Agrobacterium tumifaciens strain EHA105. Agroinfiltration of this construct into the abaxial surface of the leaves of common bean (Phaseolus vulgaris L.) produced a systemic infection characteristic of CuLCrV, although this approach was not successful for yellow squash. However, we report a very efficient and reproducible inoculation procedure established in squash when the leaves were injured with a microneedle and rubbed it with cell suspension harbouring the infectious viral construct.

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来源期刊
CiteScore
5.80
自引率
0.00%
发文量
209
审稿时长
41 days
期刊介绍: The Journal of Virological Methods focuses on original, high quality research papers that describe novel and comprehensively tested methods which enhance human, animal, plant, bacterial or environmental virology and prions research and discovery. The methods may include, but not limited to, the study of: Viral components and morphology- Virus isolation, propagation and development of viral vectors- Viral pathogenesis, oncogenesis, vaccines and antivirals- Virus replication, host-pathogen interactions and responses- Virus transmission, prevention, control and treatment- Viral metagenomics and virome- Virus ecology, adaption and evolution- Applied virology such as nanotechnology- Viral diagnosis with novelty and comprehensive evaluation. We seek articles, systematic reviews, meta-analyses and laboratory protocols that include comprehensive technical details with statistical confirmations that provide validations against current best practice, international standards or quality assurance programs and which advance knowledge in virology leading to improved medical, veterinary or agricultural practices and management.
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