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Phytohormones: Important Participators in Plant Growth and Development 2.0
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Phytohormones: Important Participators in Plant Growth and Development 2.0

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: 30 July 2024 | Viewed by 2504

Special Issue Editor

Prof. Dr. Guzel Kudoyarova

E-Mail Website
Guest Editor
Laboratory of Plant Physiology, Ufa Institute of Biology of the Russian Academy of Sciences, Ufa 450054, Russia
Interests: plant productivity; phytohormones; plant growth promoting bacteria; bacterial metabolites; plant-microorganism interaction
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Phytohormones are involved in the regulation of numerous processes in plants. However, their participation in the control of plant growth and development has attracted the most attention. Recently, wonderful discoveries have been made regarding the mechanisms of hormonal synthesis, perception of hormonal signals, and participants involved in transduction and implementation of their signals at the levels of gene expression and hormonal crosstalk with other regulatory systems. Nevertheless, a lot of questions concerning the participation of plant hormones in the control of growth and development remain unanswered. Therefore, we invite researchers to contribute to this Special Issue, which will present the latest research findings reported in original experimental papers, opinions, and reviews regarding hormonal control of growth and development on the cell and organ levels during germination, cell division, extension and differentiation, root and shoot branching, flowering, and fruit ripening. The list of regulators called phytohormones was expanded by adding brassinosteroids, jasmonates, and salicylic acid to “classical” hormones: auxins, cytokinins, gibberellins, ethylene, and abscisic acid. Although jasmonates and salicylic acid are better known as “stress hormones”, there are reports on their capacity to influence plants’ growth, and publications on this topic are welcome.

Prof. Dr. Guzel 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. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. There is an Article Processing Charge (APC) for publication in this open access journal. For details about the APC please see here. 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.

Keywords

  • growth and development
  • brassinosteroids
  • jasmonates
  • salicylic
  • auxins
  • cytokinins
  • gibberellins
  • ethylene
  • abscisic acid
  • hormonal cross-talk
  • transcription factors
  • secondary messengers (ROS, Ca, NO)

Published Papers (3 papers)

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Research

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9 pages, 2567 KiB  
Communication
New Hybrid Ethylenediurea (EDU) Derivatives and Their Phytoactivity
by Maxim S. Oshchepkov, Leonid V. Kovalenko, Antonida V. Kalistratova, Sergey V. Tkachenko, Olga N. Gorunova, Nataliya A. Bystrova and Konstantin A. Kochetkov
Int. J. Mol. Sci. 2024, 25(6), 3335; https://doi.org/10.3390/ijms25063335 - 15 Mar 2024
Viewed by 405
Abstract
Natural and synthetic phytohormones are widely used in agriculture. The synthetic cytokinin ethylenediurea (EDU) induces protection in plants against ozone phytotoxicity. In our study, new hybrid derivatives of EDU were synthesized and tested for phytoactivity. The germination potential (Gp), germination of seeds (G), [...] Read more.
Natural and synthetic phytohormones are widely used in agriculture. The synthetic cytokinin ethylenediurea (EDU) induces protection in plants against ozone phytotoxicity. In our study, new hybrid derivatives of EDU were synthesized and tested for phytoactivity. The germination potential (Gp), germination of seeds (G), and relative water content in leaves (RWC), characterizing the drought resistance of plants, were determined. The results of laboratory studies showed that EDU and its hybrid derivatives have a positive effect on root length, the growth and development of shoots, as well as the ability of plants to tolerate stress caused by a lack of water. Full article
(This article belongs to the Special Issue Phytohormones: Important Participators in Plant Growth and Development 2.0)
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19 pages, 2609 KiB  
Article
The Effect of Ethephon on Ethylene and Chlorophyll in Zoysia japonica Leaves
by Jiahang Zhang, Lijing Li, Zhiwei Zhang, Liebao Han and Lixin Xu
Int. J. Mol. Sci. 2024, 25(3), 1663; https://doi.org/10.3390/ijms25031663 - 29 Jan 2024
Viewed by 659
Abstract
Zoysia japonica (Zoysia japonica Steud.) is a kind of warm-season turfgrass with many excellent characteristics. However, the shorter green period and longer dormancy caused by cold stress in late autumn and winter are the most limiting factors affecting its application. A previous [...] Read more.
Zoysia japonica (Zoysia japonica Steud.) is a kind of warm-season turfgrass with many excellent characteristics. However, the shorter green period and longer dormancy caused by cold stress in late autumn and winter are the most limiting factors affecting its application. A previous transcriptome analysis revealed that ethephon regulated genes in chlorophyll metabolism in Zoysia japonica under cold stress. Further experimental data are necessary to understand the effect and underlying mechanism of ethephon in regulating the cold tolerance of Zoysia japonica. The aim of this study was to evaluate the effects of ethephon by measuring the enzyme activity, intermediates content, and gene expression related to ethylene biosynthesis, signaling, and chlorophyll metabolism. In addition, the ethylene production rate, chlorophyll content, and chlorophyll a/b ratio were analyzed. The results showed that ethephon application in a proper concentration inhibited endogenous ethylene biosynthesis, but eventually promoted the ethylene production rate due to its ethylene-releasing nature. Ethephon could promote chlorophyll content and improve plant growth in Zoysia japonica under cold-stressed conditions. In conclusion, ethephon plays a positive role in releasing ethylene and maintaining the chlorophyll content in Zoysia japonica both under non-stressed and cold-stressed conditions. Full article
(This article belongs to the Special Issue Phytohormones: Important Participators in Plant Growth and Development 2.0)
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22 pages, 5510 KiB  
Perspective
A Model of the Full-Length Cytokinin Receptor: New Insights and Prospects
by Dmitry V. Arkhipov, Sergey N. Lomin and Georgy A. Romanov
Int. J. Mol. Sci. 2024, 25(1), 73; https://doi.org/10.3390/ijms25010073 - 20 Dec 2023
Cited by 1 | Viewed by 813
Abstract
Cytokinins (CK) are one of the most important classes of phytohormones that regulate a wide range of processes in plants. A CK receptor, a sensor hybrid histidine kinase, was discovered more than 20 years ago, but the structural basis for its signaling is [...] Read more.
Cytokinins (CK) are one of the most important classes of phytohormones that regulate a wide range of processes in plants. A CK receptor, a sensor hybrid histidine kinase, was discovered more than 20 years ago, but the structural basis for its signaling is still a challenge for plant biologists. To date, only two fragments of the CK receptor structure, the sensory module and the receiver domain, were experimentally resolved. Some other regions were built up by molecular modeling based on structures of proteins homologous to CK receptors. However, in the long term, these data have proven insufficient for solving the structure of the full-sized CK receptor. The functional unit of CK receptor is the receptor dimer. In this article, a molecular structure of the dimeric form of the full-length CK receptor based on AlphaFold Multimer and ColabFold modeling is presented for the first time. Structural changes of the receptor upon interacting with phosphotransfer protein are visualized. According to mathematical simulation and available data, both types of dimeric receptor complexes with hormones, either half- or fully liganded, appear to be active in triggering signals. In addition, the prospects of using this and similar models to address remaining fundamental problems of CK signaling were outlined. Full article
(This article belongs to the Special Issue Phytohormones: Important Participators in Plant Growth and Development 2.0)
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