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Plant Ecophysiological Adaptation to Environmental Stress II
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Plant Ecophysiological Adaptation to Environmental Stress II

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Response to Abiotic Stress and Climate Change".

Deadline for manuscript submissions: 31 December 2024 | Viewed by 3909

Special Issue Editors

Prof. Dr. Hans-Werner Koyro

E-Mail Website
Guest Editor
Institute of Plant Ecology, Justus-Liebig University Gießen, Heinrich-Buff-Ring 26–32, D-35392 Gießen, Germany
Interests: stress ecophysiology; extremophytes; biochar; soil amendments; salt tolerance; sodium proton exchange protein
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Kristina Toderich

E-Mail Website
Guest Editor
International Platform for Dryland Research and Education, Tottori University, Tottori, Japan
Interests: crop reproduction; metabolites; salinity stress; ion translocation mechanism; drought; saline agriculture; food security; drylands
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Bernhard Huchzermeyer

E-Mail Website
Guest Editor
AK Biotechnology, VDI, BV, Hannover, Germany
Interests: plant biochemistry and physiology; bioenergetics; photosynthesis and photosynthetic metabolism; herbicide action; ecophysiology; environmental stress and plant stress response
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Due to the success of the first volume of this Special Issue and the undiminished enthusiasm for this topic, we are launching its second volume.

In this volume, we focus more on soil–plant relationships under Eu- and Dysstress. We aim to specifically focus on how soil may be treated so that plants can better tolerate short-term or long-term salt and drought (water) stress. This includes stress hardening and priming. Carbon agriculture will also be considered thematically. Many countries and international organizations have also studied and discussed carbon agriculture as a crucial issue. Long-term agricultural cultivation and large-scale mechanized production have resulted in soil compaction that seriously damages crop yield and quality. The use of additive ingredients, including biochar and compost in the soil, increases the proportion of organic components in the soil. It is worth exploring the effects of changes in the physical, chemical, and biological properties of soil on plant stress performance, such as the amendment of superabsorber (superabsorbent polymers, SAP) or PGPR (plant growth-promoting bacteria).

Another hypothesis to be addressed states that, to maintain agricultural productivity with regard to the food and fodder production potential of saline soils, halophytes (broadly defined as salt-loving wild species and salt-tolerant crops) can be cultivated. The cellular mechanisms of halophyte adaptation to abiotic stress are of great significance to science. Some species accumulate salts in their cells and/or secrete the substances through their organs/salt glands/trichomes; they can therefore be employed to reverse salinization. To develop advanced breeding and seed production techniques, obtaining physiological/ecological information pertaining to how halophytes adapt to saline soils is vital. This approach and concept of sustainable resource utilization is based on the principle of efficiency, namely using marginal land effectively, while the resources saved can be more profitably concentrated on productive lands.

Prof. Dr. Hans-Werner Koyro
Prof. Dr. Kristina Toderich
Prof. Dr. Bernhard Huchzermeyer
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. Plants 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.

Keywords

  • soil–plant relationships
  • salt and drought (water) stress
  • Eu- and Dysstress
  • carbon agriculture
  • soil physical, chemical, and biological properties
  • soil compaction
  • biochar and compost
  • superabsorber (superabsorbent polymers, SAP)
  • PGPR (plant growth-promoting bacteria)
  • Rhizobacteria
  • fodder production
  • halophytes
  • saline agriculture
  • mechanisms of salt resistance
  • marginal land use efficiency

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Related Special Issue

Published Papers (3 papers)

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Research

13 pages, 4945 KiB  
Article
Adaptation of the Invasive Plant Sphagneticola trilobata (L.) Pruski to Drought Stress
by Qilei Zhang, Ye Wang, Zhilong Weng, Guangxin Chen and Changlian Peng
Plants 2024, 13(16), 2207; https://doi.org/10.3390/plants13162207 - 9 Aug 2024
Cited by 1 | Viewed by 1023
Abstract
Invasive species and their hybrids with native species threaten biodiversity. However, there are few reports on the drought stress adaptability of invasive species Sphagneticola trilobata (L.) Pruski and its hybrid with native species S. calendulacea. In this study, relative water content (RWC), [...] Read more.
Invasive species and their hybrids with native species threaten biodiversity. However, there are few reports on the drought stress adaptability of invasive species Sphagneticola trilobata (L.) Pruski and its hybrid with native species S. calendulacea. In this study, relative water content (RWC), abscisic acid (ABA), reactive oxygen species, antioxidant capacity, and photosynthetic capacity were measured in the hybrid and its parents under drought stress (13% PEG-6000). Under drought stress, the ABA content and RWC in S. trilobata were the highest. RWC decreased by 28% in S. trilobata, 41% in S. calendulacea, and 33% in the hybrid. Activities of the antioxidant enzymes in S. trilobata were the highest, and the accumulation of malondialdehyde (MDA) was the lowest (4.3 μg g−1), while it was the highest in S. calendulacea (6.9 μg g−1). The maximum photochemical efficiency (Fv/Fm) of S. calendulacea was the lowest (0.71), and it was the highest in S. trilobata (7.5) at 8 h under drought stress. The results suggest that the drought resistance of the hybrid was weaker than that of S. trilobata but stronger than that of S. calendulacea. Therefore, the survival of S. calendulacea may be threatened by both the invasive species S. trilobata and the hybrid. Full article
(This article belongs to the Special Issue Plant Ecophysiological Adaptation to Environmental Stress II)
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17 pages, 3167 KiB  
Article
Drought Has a Greater Negative Effect on the Growth of the C3 Chenopodium quinoa Crop Halophyte than Elevated CO2 and/or High Temperature
by Zulfira Rakhmankulova, Elena Shuyskaya, Maria Prokofieva, Kristina Toderich, Luizat Saidova, Nina Lunkova and Pavel Voronin
Plants 2024, 13(12), 1666; https://doi.org/10.3390/plants13121666 - 16 Jun 2024
Cited by 1 | Viewed by 926
Abstract
Plant growth and productivity are predicted to be affected by rising CO2 concentrations, drought and temperature stress. The C3 crop model in a changing climate is Chenopodium quinoa Willd—a protein-rich pseudohalphyte (Amaranthaceae). Morphophysiological, biochemical and molecular genetic studies were performed on [...] Read more.
Plant growth and productivity are predicted to be affected by rising CO2 concentrations, drought and temperature stress. The C3 crop model in a changing climate is Chenopodium quinoa Willd—a protein-rich pseudohalphyte (Amaranthaceae). Morphophysiological, biochemical and molecular genetic studies were performed on quinoa grown at ambient (400 ppm, aCO2) and elevated (800 ppm, eCO2) CO2 concentrations, drought (D) and/or high temperature (eT) treatments. Among the single factors, drought caused the greatest stress response, inducing disturbances in the light and dark photosynthesis reactions (PSII, apparent photosynthesis) and increasing oxidative stress (MDA). Futhermore, compensation mechanisms played an important protective role against eT or eCO2. The disruption of the PSII function was accompanied by the activation of the expression of PGR5, a gene of PSI cyclic electron transport (CET). Wherein under these conditions, the constant Rubisco content was maintained due to an increase in its biosynthesis, which was confirmed by the activation of rbcL gene expression. In addition, the combined stress treatments D+eT and eCO2+D+eT caused the greatest negative effect, as measured by increased oxidative stress, decreased water use efficiency, and the functioning of protective mechanisms, such as photorespiration and the activity of antioxidant enzymes. Furthermore, decreased PSII efficiency and increased non-photochemical quenching (NPQ) were not accompanied by the activation of protective mechanisms involving PSI CET. In summary, results show that the greatest stress experienced by C. quinoa plants was caused by drought and the combined stresses D+eT and eCO2+D+eT. Thus, drought consistently played a decisive role, leading to increased oxidative stress and a decrease in defense mechanism effectiveness. Full article
(This article belongs to the Special Issue Plant Ecophysiological Adaptation to Environmental Stress II)
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18 pages, 3939 KiB  
Article
Salinity Mitigates the Negative Effect of Elevated Temperatures on Photosynthesis in the C3-C4 Intermediate Species Sedobassia sedoides
by Elena Shuyskaya, Zulfira Rakhmankulova, Maria Prokofieva, Nina Lunkova and Pavel Voronin
Plants 2024, 13(6), 800; https://doi.org/10.3390/plants13060800 - 12 Mar 2024
Cited by 2 | Viewed by 1268
Abstract
The adaptation of plants to combined stresses requires unique responses capable of overcoming both the negative effects of each individual stress and their combination. Here, we studied the C3-C4 (C2) halophyte Sedobassia sedoides in response to elevated temperature [...] Read more.
The adaptation of plants to combined stresses requires unique responses capable of overcoming both the negative effects of each individual stress and their combination. Here, we studied the C3-C4 (C2) halophyte Sedobassia sedoides in response to elevated temperature (35 °C) and salinity (300 mM NaCl) as well as their combined effect. The responses we studied included changes in water–salt balance, light and dark photosynthetic reactions, the expression of photosynthetic genes, the activity of malate dehydrogenase complex enzymes, and the antioxidant system. Salt treatment led to altered water–salt balance, improved water use efficiency, and an increase in the abundance of key enzymes involved in intermediate C3-C4 photosynthesis (i.e., Rubisco and glycine decarboxylase). We also observed a possible increase in the activity of the C2 carbon-concentrating mechanism (CCM), which allowed plants to maintain high photosynthesis intensity and biomass accumulation. Elevated temperatures caused an imbalance in the dark and light reactions of photosynthesis, leading to stromal overreduction and the excessive generation of reactive oxygen species (ROS). In response, S. sedoides significantly activated a metabolic pathway for removing excess NADPH, the malate valve, which is catalyzed by NADP-MDH, without observable activation of the antioxidant system. The combined action of these two factors caused the activation of antioxidant defenses (i.e., increased activity of SOD and POX and upregulation of FDI), which led to a decrease in oxidative stress and helped restore the photosynthetic energy balance. Overall, improved PSII functioning and increased activity of PSI cyclic electron transport (CET) and C2 CCM led to an increase in the photosynthesis intensity of S. sedoides under the combined effect of salinity and elevated temperature relative to high temperature alone. Full article
(This article belongs to the Special Issue Plant Ecophysiological Adaptation to Environmental Stress II)
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