First report of a simple method of CRISPR/Cas13a-based rapid detection of groundnut bud necrosis virus without PCR amplification.
Shashikala T, Yogi D, Akshay K, Nagesh SN, Manamohan M
Crispr
GBNV can devastate tomato, peanut, and bean crops that many gardeners and farmers rely on, and a faster, cheaper detection tool means farmers can identify and contain outbreaks before losing their entire harvest.
Groundnut bud necrosis virus is a sneaky plant virus that destroys peanut, tomato, and bean crops around the world, and until now detecting it required expensive lab equipment. Researchers repurposed CRISPR — the same gene-editing technology you may have heard about in medicine — as a virus detector that can work directly on a simple leaf extract without any complex preparation steps. The test is sensitive enough to catch even tiny amounts of the virus and could eventually be used by farmers right in their fields.
Key Findings
The CRISPR/Cas13a assay detected GBNV at concentrations as low as 0.01 nanograms — no PCR amplification needed.
The test worked directly on crude leaf extract from infected tomato plants using a simple alkaline PEG buffer, skipping complex RNA purification.
This is the first reported CRISPR-based diagnostic for GBNV, targeting two viral genes (nucleocapsid and movement protein) for broad sensitivity.
chevron_right Technical Summary
Scientists developed a faster, simpler test to detect a destructive plant virus called groundnut bud necrosis virus (GBNV) using CRISPR technology — no lab amplification step required. This makes field diagnosis of the virus more practical and accessible.
Abstract Preview
Globally, the groundnut bud necrosis virus (GBNV) (Bunyaviridae), pose a serious threat to solanaceous and leguminous crops causing serious crop loss. This requires a rapid and sensitive diagnostic...
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