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Agronomy
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Advances in Plant Physiology of Abiotic Stresses Series II
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Advances in Plant Physiology of Abiotic Stresses Series II

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Horticultural and Floricultural Crops".

Deadline for manuscript submissions: closed (30 April 2023) | Viewed by 4469

Special Issue Editors

Dr. José Ramón Acosta-Motos

E-Mail Website
Guest Editor
Biotechnology for Agriculture and Food Group, Campus de Los Jerónimos, Universidad Católica San Antonio de Murcia (UCAM), 30107 Murcia, Spain
Interests: plant physiology; stress physiology; abiotic stress; salinity; antioxidative metabolism; water saving strategies; postharvest technology; ornamental plants; rice; fruit trees
Special Issues, Collections and Topics in MDPI journals
Dr. Sara Álvarez

E-Mail Website
Guest Editor
Department of Horticultural and Woody Crops, Instituto Tecnológico Agrario de Castilla y León (ITACYL), Crta Burgos Km 119, CP 47071 Valladolid, Spain
Interests: deficit irrigation; plant physiology; ornamental plants; stress physiology; evapotranspiration; salinity; water relations; tree nut crops; intrinsic water use efficiency
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Plant stress could be defined as any unfavorable condition or substance that can affect or block the metabolism, growth, and development of a plant. The response of the plant may vary depending on the frequency and intensity of the stress situation as well as the developmental stage of the plant.

Plants, throughout their life cycle, are exposed to a large number of conditions or stressors. Abiotic stress is stress caused by non-living agents. Depending on the nature of the causal agent, it can be divided into physical and chemical. Physical (in fact, physical–chemical) stresses include water deficit, salinity (in its osmotic component), temperature extremes (heat, cold, freezing), excessive or insufficient irradiation, anaerobiosis caused by waterlogging or flooding, mechanical stress caused by wind or excessive soil compaction, and stress induced by wounds or injuries. Chemical stress is caused by salinity (in its ionic or toxic component), by the lack of mineral elements, and by environmental pollutants such as sulfur dioxide (SO2), nitrogen oxides (NOx), chlorofluorocarbon compounds (CFCs), ozone (O3), and metals.

What do all stresses have in common? The damage caused by various stresses is partly mediated by an overproduction of reactive oxygen species (ROS). Furthermore, these stresses affect plant physiology through changes in photosynthesis, respiration, or carbohydrate metabolism.

The abiotic stresses that probably affect growth and production most negatively are drought, salt stress, and temperature stress (high and low temperatures), all of which are associated with climate change.

This Special Issue will focus on “Advances in Plant Physiology of Abiotic Stresses”. We welcome novel research, reviews, and opinion pieces covering all related topics indicated above on how plants respond to physical and chemical stresses associated with abiotic stress in the context of climate change.

Dr. José Ramón Acosta-Motos
Dr. Sara Álvarez
Guest Editors

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. 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 2600 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.

Keywords

  • abiotic stresses
  • environmental stress
  • physical stress
  • water deficit
  • salinity
  • extreme temperatures
  • excessive or insufficient irradiation
  • lack of oxygen
  • waterlogging
  • flooding
  • mechanical stress
  • stress induced by wounds or injuries
  • chemical stress
  • self-defense mechanisms

Published Papers (2 papers)

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14 pages, 2094 KiB  
Article
Nanoparticles Enhance Plant Resistance to Abiotic Stresses: A Bibliometric Statistic
by Zemao Liu, Mohammad Faizan, Lihong Zheng, Luomin Cui, Chao Han, Hong Chen and Fangyuan Yu
Agronomy 2023, 13(3), 729; https://doi.org/10.3390/agronomy13030729 - 28 Feb 2023
Cited by 2 | Viewed by 2158
Abstract
Using nanoparticles (NPs) to effectively mitigate the negative effects of abiotic stressors on plant growth and development will help to achieve sustainable agriculture. Although there have been some prior reviews in this area, bibliometrics is still lacking. In this study, the most productive [...] Read more.
Using nanoparticles (NPs) to effectively mitigate the negative effects of abiotic stressors on plant growth and development will help to achieve sustainable agriculture. Although there have been some prior reviews in this area, bibliometrics is still lacking. In this study, the most productive nations or regions, journals, publishers, and scholars in this field were identified using an objective bibliometric examination of the pertinent material published in the Web of Science core database. To dig deeper for information, the keywords co-occurrence, collaboration network of countries/regions and authors, and network map of highly cited papers citation are used to characterize present advances and forecast potential future trends. The results show a growing interest in using nanoparticles to alleviate abiotic stressors. There has been an exponential increase in the number of relevant papers and citations. Moreover, Asian countries are the most active in this subject, even if the USA generates papers with the best overall quality. The most common publishers and journals in this area are Elsevier and Environmental Science-Nano, while Wu HH is currently the most active author. Even though many researchers have formed close partnerships, there is not yet a large collaborative group of researchers in this field. Gaps in the current scientific literature are highlighted, such as the lack of use of omics, especially multi-omics, to provide a more in-depth and comprehensive explanation of the molecular mechanisms by which NPs enhance plant resistance to abiotic stresses. This bibliometric study will provide a valuable reference for studying the evolution of the field and identifying research frontiers. Full article
(This article belongs to the Special Issue Advances in Plant Physiology of Abiotic Stresses Series II)
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18 pages, 1844 KiB  
Article
Chitosan Treatment Effectively Alleviates the Adverse Effects of Salinity in Moringa oleifera Lam via Enhancing Antioxidant System and Nutrient Homeostasis
by Ahmed F. Elkarmout, Mei Yang and Fahmy A.S. Hassan
Agronomy 2022, 12(10), 2513; https://doi.org/10.3390/agronomy12102513 - 14 Oct 2022
Cited by 7 | Viewed by 1844
Abstract
Salt stress is a significant and common abiotic stress that negatively affects plant growth and development. Chitosan is a biodegradable and non-toxic stimulant of plant growth, which produces new routes to ameliorate the adverse effects of abiotic stresses. The possible profits of chitosan [...] Read more.
Salt stress is a significant and common abiotic stress that negatively affects plant growth and development. Chitosan is a biodegradable and non-toxic stimulant of plant growth, which produces new routes to ameliorate the adverse effects of abiotic stresses. The possible profits of chitosan in salt stress alleviation have not been reported yet in Moringa oleifera, an important nutritional and medicinal tree. Therefore, the aim of the current study was to investigate the effect of chitosan treatment on salt-stressed moringa and its underlying physiological and biochemical mechanisms. Moringa plants were grown under 0, 25, 50 and 75 mM NaCl, while chitosan was applied at a 1% concentration as a foliar spray treatment. Growth attributes were considerably impaired, due to the salt stress treatment; however, chitosan application significantly reversed such an effect. Relative to the control, the fresh and dry weights of leaves were reduced by 51.44 and 48.74% in 75 mM-treated plants, while after chitosan treatment they were 33.61 and 35.72%, respectively. Additionally, chitosan treatment retarded chlorophyll and carotenoids reductions, enhanced the carbohydrate content, proline content, and phenol content and induced the activities of catalase, superoxide dismutase and ascorbate peroxidase in salt-stressed plants. Thus, chitosan application alleviated the oxidative injury, observed by lower malondialdehyde and H2O2 levels, thereby preserving membrane stability and improving antioxidant capacity and salt tolerance. In 50 mM NaCl-treated plants, chitosan treatment increased the activities of CAT, SOD and APX enzymes by 2.63, 2.74 and 2.31-fold relative to the control, respectively. Furthermore, chitosan application prevents the disturbance in ion homeostasis, and therefore not only enhanced the contents of N, P, K, Mg and Fe but also decreased Na content under salinity. Collectively, chitosan treatment overcame the adverse effects of salinity in moringa by activating the antioxidant machinery and preventing disturbance in ion homeostasis. Full article
(This article belongs to the Special Issue Advances in Plant Physiology of Abiotic Stresses Series II)
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