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Systemic RNA Signaling in Plants

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Plant Sciences".

Deadline for manuscript submissions: closed (31 August 2023) | Viewed by 1359

Special Issue Editor

School of Chemistry and Molecular Biosciences, Faculty of Science, University of Queensland, Brisbane, QLD 4072, Australia
Interests: small RNA; microRNAs; RNA biology; gene expression regulation; RNAi; RNA technologies
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

It is now a well-established fact that messenger RNAs (mRNAs) form central systemic signaling molecules in several key aspects of plant development. Considering the complexity of the plant system, it is unsurprising that numerous other forms of RNAs, including long non-protein-coding RNAs (lncRNAs) and small RNAs (sRNAs), for example, have also been identified to function as systemic signaling molecules, not only in plant development, but also in mediating the defense response of a plant to invading pathogens, or as part of the adaptive response of a plant to environmental stress. More recent research has further revealed that many mobile RNAs are enriched in specific sequence or structural modifications proposed to promote transcript mobility. In addition, a suite of highly specialized proteins has also been identified, and shown to be required for the systemic movement of various forms of mobile RNAs (mRNAs, lncRNAs and sRNAs).

The systemic signaling ability of RNA molecules has currently formed a central research focus for many plant biology research laboratories globally; as such, this Special Issue of IJMS calls for review articles or research studies concerning the field of “Systemic RNA Signaling in Plants”. Specifically, article topics submitted to this Special Issue of IJMS should have a strong molecular biology and/or molecular genetics focus, addressing a key aspect of systemic RNA signaling in plants, including:

  • RNA mobility and systemic RNA movement;
  • Mobile, long, non-protein-coding RNAs and small RNAs;
  • Nucleotide and structural modifications directing systemic RNA movement;
  • RNA binding and other interacting proteins that mediate systemic RNA movement;
  • Systemic RNA signaling as part of plant development, pathogen defense and environmental stress adaptation.

Dr. Andrew Eamens
Guest Editor

Manuscript Submission Information

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Keywords

  • RNA mobility
  • systemic RNA movement
  • mobile RNA species
  • nucleotide and structural modifications directing systemic RNA movement
  • mobility mediating RNA binding proteins
  • systemic RNA signaling for plant develop-ment, pathogen defense
  • environmental stress adaptation

Published Papers (1 paper)

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Research

13 pages, 3039 KiB  
Article
Tandem Expression of a Mobile RNA and Its RNA-Binding Protein(s) Enhances Tuber Productivity in Potato
by Kirtikumar R. Kondhare, Nikita S. Patil, Sundaresha Siddappa, Anjan K. Banerjee and David J. Hannapel
Int. J. Mol. Sci. 2023, 24(21), 15754; https://doi.org/10.3390/ijms242115754 - 30 Oct 2023
Viewed by 1058
Abstract
A significant number of discoveries in past two decades have established the importance of long-distance signaling in controlling plant growth, development, and biotic and abiotic stress responses. Numerous mobile signals, such as mRNAs, proteins, including RNA-binding proteins, small RNAs, sugars, and phytohormones, are [...] Read more.
A significant number of discoveries in past two decades have established the importance of long-distance signaling in controlling plant growth, development, and biotic and abiotic stress responses. Numerous mobile signals, such as mRNAs, proteins, including RNA-binding proteins, small RNAs, sugars, and phytohormones, are shown to regulate various agronomic traits such as flowering, fruit, seed development, and tuberization. Potato is a classic model tuber crop, and several mobile signals are known to govern tuber development. However, it is unknown if these mobile signals have any synergistic effects on potato crop improvement. Here, we employed a simple innovative strategy to test the cumulative effects of a key mobile RNA, StBEL5, and its RNA-binding proteins, StPTB1, and -6 on tuber productivity of two potato cultivars, Solanum tuberosum cv. Désirée and subspecies andigena, using a multi-gene stacking approach. In this approach, the coding sequences of StBEL5 and StPTB1/6 are driven by their respective native promoters to efficiently achieve targeted expression in phloem for monitoring tuber productivity. We demonstrate that this strategy resulted in earliness for tuberization and enhanced tuber productivity by 2–4 folds under growth chamber, greenhouse, and field conditions. This multi-gene stacking approach could be adopted to other crops, whose agronomic traits are governed by mobile macromolecules, expanding the possibilities to develop crops with improved traits and enhanced yields. Full article
(This article belongs to the Special Issue Systemic RNA Signaling in Plants)
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