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Cells
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Local and Systemic Signals of Macronutrient and Water Availability
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Local and Systemic Signals of Macronutrient and Water Availability

A special issue of Cells (ISSN 2073-4409). This special issue belongs to the section "Plant, Algae and Fungi Cell Biology".

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 2480

Special Issue Editor

Prof. Guzel R. Kudoyarova

E-Mail Website
Guest Editor
Ufa Institute of Biology of the Russian Academy of Sciences, Ufa, Russia
Interests: hormonal control of water relations and growth in plants during adaption to availability of macroelements and water
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Changes in resource (mineral nutrients and water) availability, due to their heterogeneous distribution in space and time, affect plant development. Plants need to sense these changes to adapt to a changing environment. Limited supply of water or nutrients can elicit similar physiological responses (i.e., the relative activation of root growth at the expense of shoot growth), and similar underlying mechanisms may affect perception and acquisition of either nutrients or water, although specific responses also exist and deserve attention. The roles of local and distant (root-to-shoot and shoot-to-root) signaling are important in coordinating changes in root and shoot physiological responses. Involvement of plant hormones in local and distant signaling regulating physiological responses such as stomatal and hydraulic conductance is revealed by measuring the effects of resource availability on phytohormone concentrations in roots and shoots, and their flow between roots and shoots in xylem and phloem saps. More specific evidence can be obtained by measuring the physiological responses of genotypes with altered hormone responses or concentrations. 

This Special Issue aims to summarize current knowledge on the roles of local and systemic signals of macronutrient and water availability in plant responses and adaption to a changing root environment. We welcome reports on recent progress in identifying the molecular basis of the initial sensing of changes in nutrient and water supply, the similarity and diversity of changes in physiological and molecular processes under changes in water and nutrients availability, and the possible involvement of hormones in their regulation. A better understanding of these mechanisms may contribute to better crop management for the efficient use of these resources and to selecting crops for improved performance under suboptimal soil conditions.

Prof. Guzel R. Kudoyarova
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

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. Cells is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (2 papers)

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Research

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25 pages, 4794 KiB  
Article
Real-Time Dynamics of Water Transport in the Roots of Intact Maize Plants in Response to Water Stress: The Role of Aquaporins and the Contribution of Different Water Transport Pathways
by Maksim Suslov, Amina Daminova and Juluskhan Egorov
Cells 2024, 13(2), 154; https://doi.org/10.3390/cells13020154 - 15 Jan 2024
Cited by 1 | Viewed by 871
Abstract
Using an original methodological and technical approach, we studied the real-time dynamics of radial water transfer in roots and transpiration rate in intact maize plants in response to water stress. It was shown that the response of maize plants to water stress, induced [...] Read more.
Using an original methodological and technical approach, we studied the real-time dynamics of radial water transfer in roots and transpiration rate in intact maize plants in response to water stress. It was shown that the response of maize plants to water stress, induced by 10% PEG 6000, was accompanied by changes in the intensity and redistribution of water transfer along different pathways of radial water transport in the roots. It was shown that during the first minutes of water stress impact, the intensity of transcellular and symplastic water transport in the roots decreased with a parallel short-term increase in the transpiration rate in leaves and, presumably, in apoplastic transport in roots. Further, after a decrease in transpiration rate, the intensity of transcellular and symplastic water transport was restored to approximately the initial values and was accompanied by parallel upregulation of some PIP aquaporin genes in roots and leaves, changes in aquaporin localization in root tissues, and changes in xylem sap pH. Under water stress conditions, cell-to-cell water transport in roots becomes dominant, and aquaporins contribute to the simultaneous regulation of water transport in roots and shoots under water stress. Full article
(This article belongs to the Special Issue Local and Systemic Signals of Macronutrient and Water Availability)
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Review

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16 pages, 1751 KiB  
Review
The Long-Distance Transport of Some Plant Hormones and Possible Involvement of Lipid-Binding and Transfer Proteins in Hormonal Transport
by Guzel Akhiyarova, Ekaterina I. Finkina, Kewei Zhang, Dmitriy Veselov, Gulnara Vafina, Tatiana V. Ovchinnikova and Guzel Kudoyarova
Cells 2024, 13(5), 364; https://doi.org/10.3390/cells13050364 - 20 Feb 2024
Viewed by 1120
Abstract
Adaptation to changes in the environment depends, in part, on signaling between plant organs to integrate adaptive response at the level of the whole organism. Changes in the delivery of hormones from one organ to another through the vascular system strongly suggest that [...] Read more.
Adaptation to changes in the environment depends, in part, on signaling between plant organs to integrate adaptive response at the level of the whole organism. Changes in the delivery of hormones from one organ to another through the vascular system strongly suggest that hormone transport is involved in the transmission of signals over long distances. However, there is evidence that, alternatively, systemic responses may be brought about by other kinds of signals (e.g., hydraulic or electrical) capable of inducing changes in hormone metabolism in distant organs. Long-distance transport of hormones is therefore a matter of debate. This review summarizes arguments for and against the involvement of the long-distance transport of cytokinins in signaling mineral nutrient availability from roots to the shoot. It also assesses the evidence for the role of abscisic acid (ABA) and jasmonates in long-distance signaling of water deficiency and the possibility that Lipid-Binding and Transfer Proteins (LBTPs) facilitate the long-distance transport of hormones. It is assumed that proteins of this type raise the solubility of hydrophobic substances such as ABA and jasmonates in hydrophilic spaces, thereby enabling their movement in solution throughout the plant. This review collates evidence that LBTPs bind to cytokinins, ABA, and jasmonates and that cytokinins, ABA, and LBTPs are present in xylem and phloem sap and co-localize at sites of loading into vascular tissues and at sites of unloading from the phloem. The available evidence indicates a functional interaction between LBTPs and these hormones. Full article
(This article belongs to the Special Issue Local and Systemic Signals of Macronutrient and Water Availability)
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