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Related Concept Videos

Experimental RNAi02:15

Experimental RNAi

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RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...
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siRNA - Small Interfering RNAs02:30

siRNA - Small Interfering RNAs

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Small interfering RNAs, or siRNAs, are short regulatory RNA molecules that can silence genes post-transcriptionally, as well as the transcriptional level in some cases. siRNAs are important for protecting cells against viral infections and silencing transposable genetic elements.
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
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Related Experiment Video

Updated: Jun 15, 2025

Double-stranded RNA Oral Delivery Methods to Induce RNA Interference in Phloem and Plant-sap-feeding Hemipteran Insects
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RNAi technology development for weed control: all smoke and no fire?

Silvia Panozzo1, Andrea Milani1, Serena Bordignon2

  • 1Institute for Sustainable Plant Protection (IPSP), National Research Council of Italy (CNR), Legnaro, Italy.

Pest Management Science
|February 21, 2025
PubMed
Summary

Spray-Induced Gene Silencing (SIGS) offers eco-friendly weed control but needs better delivery and gene targets. Further research is crucial for developing effective RNAi herbicides for sustainable agriculture.

Keywords:
RNA interferencedsRNAgene silencing targetmodel weed speciesweed control

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Area of Science:

  • Agricultural Science
  • Biotechnology
  • Environmental Science

Background:

  • RNA interference (RNAi) technology, particularly Spray-Induced Gene Silencing (SIGS), presents a novel strategy for selective weed management.
  • While RNAi applications against pests and diseases are progressing, RNAi-based weed control faces challenges in specificity and delivery.
  • Current scientific evidence for SIGS efficacy in weed control is limited, hindering its advancement.

Purpose of the Study:

  • To review critical factors impeding the development of RNAi herbicides.
  • To identify key areas for research to advance SIGS technology for weed control.
  • To highlight the potential of SIGS as a sustainable agricultural tool.

Main Methods:

  • Literature review focusing on RNAi technology and its application in weed management.
  • Analysis of challenges in gene target specificity and delivery mechanisms for SIGS.
  • Identification of strategies to overcome current limitations in RNAi herbicide development.

Main Results:

  • SIGS technology is in its early stages for weed control, with significant hurdles in gene target specificity and effective delivery systems.
  • Lack of robust scientific evidence limits the practical application of SIGS.
  • Progress in RNAi-based crop protection against other threats is rapid, contrasting with weed control development.

Conclusions:

  • Advancing SIGS requires enhanced delivery methods and a focus on high-impact weed species.
  • Addressing current limitations can transform SIGS into a viable tool for sustainable agriculture.
  • Further research is essential to realize the potential of RNAi herbicides.