Special Issue "The Role of Growth Regulators in Crop under Abiotic Stress"
Deadline for manuscript submissions: 30 September 2020.
Interests: analysis of plant hormones; brassinosteroids; crosstalk of BRs and ethylene; immunochemistry of phytohormones
In addition to developmental processes, endogenous plant hormones play crucial roles in the response to biotic and abiotic stresses. Phytohormones (auxins, brassinosteroids, cytokinins, ethylene, gibberellins, jasmonates, abscisic, and salicylic acids) are the key mediators of plant responses to various abiotic stress. However, these hormones usually engage in crosstalk with each other to increase the survival of plants. It has been shown that the direct application of such hormones to plant roots, shoots, leaves, buds and flowers increases resistance to abiotic and biotic stress. Phytohormones can improve drought tolerance and water use efficiency, improve temperature tolerance, improve nitrogen use efficiency, promote shoot elongation and generation, stimulate root growth and lateral root development, and promote photosynthesis. The use of phytohormones or their synthetic derivatives on crops can improve yields in fields affected by global climate change. Recently, great efforts have been devoted to understanding the phytohormone regulatory mechanisms in plant response to various stresses; however, many questions still remain unanswered. This Special Issue is focused on introducing the latest interesting findings on the roles of phytohormones and their crosstalk in the abiotic stress adaptation of major crops. We therefore invite submissions on topics including, but not limited to, the following: (1) the effect of plant hormones on the growth and development of crops; (2) the use of plant hormone derivatives as biostimulants to increase yields; (3) phytohormonal profiling during stress conditions; (4) phytohormonal crosstalk as a response to abiotic stresses.
Dr. Jana Okleštková
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 papers will be 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. Agronomy is an international peer-reviewed open access monthly 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 1600 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.
- abiotic stress
- plant hormones
- synthetic derivatives of phytohormones
- phytohormonal crosstalk
- hormonal regulation of plant responses under stress factors
- stress adaptation
- climate change
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
1) Title: Impact of drought exerted during spike development on tillering, yield parameters and grain chemical composition in semi-dwarf barley mutants deficient in the brassinosteroid metabolism
Authors: Damian Gruszka1, Anna Janeczko2, Joanna Puła3, Andrzej Lepiarczyk3, Ewa Pociecha4
1University of Silesia, Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, Jagiellonska 28, 40-032 Katowice, Poland;
2Polish Academy of Sciences, The Franciszek Górski Institute of Plant Physiology, Niezapominajek 21, 30-239 Krakow, Poland;
3University of Agriculture in Krakow, Department of Agroecology and Plant Production, Mickiewicza 21, 31-120 Krakow, Poland;
4University of Agriculture in Krakow, Department of Plant Physiology, Podłużna 3, 30‑239 Krakow, Poland
Drought is a major factor limiting plant growth, development and reproduction, and consequently negatively affects crop yield. Semi-dwarf barley mutants defective in the brassinosteroid (BR) metabolism may be regarded as an alternative in future breeding programs. Recently, it was reported that mutants defective in the BR metabolism from several monocot species, including barley (Hordeum vulgare), show improved tolerance to drought exerted during the vegetative phase of plant growth. Taking into account that occurence of drought during spike development has a profound effect on yield, determining reaction of the semi-dwarf, BR-deficient barley mutants to drought occuring during the reproductive phase was very important. In this study barley Near-Isogenic Lines (NILs) defective in the BR metabolism, and the ‘Bowman’ cultivar as a reference, constituted a material of the research. The experiments were carried out under the controlled and field conditions. In the experiments the following yield-related parameters were analyzed: total tillering (including sterile tillers), productive tillering (number of tillers with spikes), average grain weight per plant, average grain weight per spike, and weight of 1,000 seeds. In order to qualitatively characterize the yield obtained under the control and drought conditions, an analysis of chemical composition of grain was performed. Content of dry mineral matter (ash), proteins, fibre, starch, and lipids in grain of the analyzed genotypes was determined.
(2) Type of manuscript: Review
Title: Stress-responsive transcription factors and modulation of plant growth and defense under abiotic stress
Youngdae Yoon1 and Geupil Jang2
1Department of Environmental Health Science, Konkuk University, Seoul 05029, Republic of Korea
2School of Biological Sciences and Technology, Chonnam National University, Gwangju, 61186, Republic of Korea
Abiotic stress including drought, low or high temperature and salinity is an environmental constraint that negatively affects plant growth and productivity. Because ecosystem Earth largely depends on growth and productivity of plants including crops, extensive studies have been attempted to identify molecular and genetics mechanism modulating plant growth and defense under abiotic stress conditions. Increasing evidence indicates that stress-responsive transcription factors (TFs) such as NACs, MYCs and ERFs play an essential role in the stress-induced modulation by determining transcriptional expression profiles. In this review, we summarize and discuss recent findings of molecular mechanisms underlying plant response to abiotic stress, and the roles of stress-responsive transcription factors in this process.