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Long- and Short- Distance Signaling in Plant Defence
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Long- and Short- Distance Signaling in Plant Defence

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 (30 May 2023) | Viewed by 12696

Special Issue Editor

Dr. Alexandra Furch

E-Mail Website
Guest Editor
Matthias Schleiden Institute of Genetics, Bioinformatics and Molecular Botany, Friedrich-Schiller-University Jena, Dornburger Str. 159, 07743 Jena, Germany
Interests: plant–microbe interaction; phloem physiology; systemic signaling in plants; phytohormones; electrical signals
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear colleagues,

Plants are exposed to countless different organisms, such as bacteria, fungi and insects, and may interact with them in either a friendly or hostile manner. Along with the sessile life of plants, they must have a capacity for perception; otherwise, a plant’s fitness would be at risk. Therefore, a plant’s interaction with its living environment results in the triggering of local and systemic signals which inform other areas of the plant or even neighbouring plants. This indicates signalling networks are highly significant for plants’ growth and survival. Such signalling networks are composed of electrophysiological and chemical signals. There is a large body of knowledge for chemical signals, e.g., phytohormones, RNAs, peptides, ROS, VOCs; however, less is known about the integrative role of electrophysiological signals, e.g., action potentials (APs), variation potentials (VPs), system potentials (SPs) or a mixture of these. In particular, the potential cooperation of electrophysiological and chemical signals is unknown but of special interest. It seems very likely that the complex heterogeneous interaction of plants with their environment involves a wide plasticity of signals and their combinations.

With this in mind, we are inviting the submission of original research papers, reviews or opinion papers considering any aspect of electrophysiological or chemical signalling in response to biotic stimuli as well as mediated downstream events.

Dr. Alexandra Furch
Guest Editor

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

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Keywords

  • Plant-pathogen/symbiont/insect-interaction
  • Plant defense
  • Systemic signaling and response
  • Electrical signal
  • Chemical signal
  • Vascular system

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Published Papers (3 papers)

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Review

35 pages, 1827 KiB  
Review
Signals and Their Perception for Remodelling, Adjustment and Repair of the Plant Cell Wall
by Ralf Oelmüller, Yu-Heng Tseng and Akanksha Gandhi
Int. J. Mol. Sci. 2023, 24(8), 7417; https://doi.org/10.3390/ijms24087417 - 18 Apr 2023
Cited by 7 | Viewed by 3020
Abstract
The integrity of the cell wall is important for plant cells. Mechanical or chemical distortions, tension, pH changes in the apoplast, disturbance of the ion homeostasis, leakage of cell compounds into the apoplastic space or breakdown of cell wall polysaccharides activate cellular responses [...] Read more.
The integrity of the cell wall is important for plant cells. Mechanical or chemical distortions, tension, pH changes in the apoplast, disturbance of the ion homeostasis, leakage of cell compounds into the apoplastic space or breakdown of cell wall polysaccharides activate cellular responses which often occur via plasma membrane-localized receptors. Breakdown products of the cell wall polysaccharides function as damage-associated molecular patterns and derive from cellulose (cello-oligomers), hemicelluloses (mainly xyloglucans and mixed-linkage glucans as well as glucuronoarabinoglucans in Poaceae) and pectins (oligogalacturonides). In addition, several types of channels participate in mechanosensing and convert physical into chemical signals. To establish a proper response, the cell has to integrate information about apoplastic alterations and disturbance of its wall with cell-internal programs which require modifications in the wall architecture due to growth, differentiation or cell division. We summarize recent progress in pattern recognition receptors for plant-derived oligosaccharides, with a focus on malectin domain-containing receptor kinases and their crosstalk with other perception systems and intracellular signaling events. Full article
(This article belongs to the Special Issue Long- and Short- Distance Signaling in Plant Defence)
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31 pages, 14314 KiB  
Review
Is Endophytic Colonization of Host Plants a Method of Alleviating Drought Stress? Conceptualizing the Hidden World of Endophytes
by Roopashree Byregowda, Siddegowda Rajendra Prasad, Ralf Oelmüller, Karaba N. Nataraja and M. K. Prasanna Kumar
Int. J. Mol. Sci. 2022, 23(16), 9194; https://doi.org/10.3390/ijms23169194 - 16 Aug 2022
Cited by 24 | Viewed by 4028
Abstract
In the wake of changing climatic conditions, plants are frequently exposed to a wide range of biotic and abiotic stresses at various stages of their development, all of which negatively affect their growth, development, and productivity. Drought is one of the most devastating [...] Read more.
In the wake of changing climatic conditions, plants are frequently exposed to a wide range of biotic and abiotic stresses at various stages of their development, all of which negatively affect their growth, development, and productivity. Drought is one of the most devastating abiotic stresses for most cultivated crops, particularly in arid and semiarid environments. Conventional breeding and biotechnological approaches are used to generate drought-tolerant crop plants. However, these techniques are costly and time-consuming. Plant-colonizing microbes, notably, endophytic fungi, have received increasing attention in recent years since they can boost plant growth and yield and can strengthen plant responses to abiotic stress. In this review, we describe these microorganisms and their relationship with host plants, summarize the current knowledge on how they “reprogram” the plants to promote their growth, productivity, and drought tolerance, and explain why they are promising agents in modern agriculture. Full article
(This article belongs to the Special Issue Long- and Short- Distance Signaling in Plant Defence)
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24 pages, 1417 KiB  
Review
Distribution, Characterization and the Commercialization of Elite Rhizobia Strains in Africa
by Clabe Wekesa, Abdul A. Jalloh, John O. Muoma, Hezekiah Korir, Keziah M. Omenge, John M. Maingi, Alexandra C. U. Furch and Ralf Oelmüller
Int. J. Mol. Sci. 2022, 23(12), 6599; https://doi.org/10.3390/ijms23126599 - 13 Jun 2022
Cited by 9 | Viewed by 5066
Abstract
Grain legumes play a significant role in smallholder farming systems in Africa because of their contribution to nutrition and income security and their role in fixing nitrogen. Biological Nitrogen Fixation (BNF) serves a critical role in improving soil fertility for legumes. Although much [...] Read more.
Grain legumes play a significant role in smallholder farming systems in Africa because of their contribution to nutrition and income security and their role in fixing nitrogen. Biological Nitrogen Fixation (BNF) serves a critical role in improving soil fertility for legumes. Although much research has been conducted on rhizobia in nitrogen fixation and their contribution to soil fertility, much less is known about the distribution and diversity of the bacteria strains in different areas of the world and which of the strains achieve optimal benefits for the host plants under specific soil and environmental conditions. This paper reviews the distribution, characterization, and commercialization of elite rhizobia strains in Africa. Full article
(This article belongs to the Special Issue Long- and Short- Distance Signaling in Plant Defence)
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