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Plants
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Plant under Drought 2020-2021
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Plant under Drought 2020-2021

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Physiology and Metabolism".

Deadline for manuscript submissions: closed (15 May 2021) | Viewed by 9395

Special Issue Editor

Prof. Dr. Hanna Bandurska

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Guest Editor
Department of Plant Physiology, Poznań University of Life Sciences, Wołyńska 35, 60-637 Poznań, Poland
Interests: plant physiology; plant stress physiology; responses and resistance to abiotic stresses (water deficit, salinity, UV-B, tropospheric ozone); cross resistance

Special Issue Information

Dear Colleagues,

Drought is considered the most frequent climate-related disaster, which reduces crop production worldwide. It generates a state of stress in plant cells which causes a reduction of water content in leaves, leading to disruption in growth and development. Plants can cope with drought by triggering metabolic events responsible for resistance, including avoidance and/or tolerance mechanisms. The activation of these mechanisms is linked with the relocation of energy and nutrients from growth and biomass production, which in turn may cause inhibition of plant physiological activity. Crop plants’ resistance to drought means not only the ability to cope with stress but also to achieve stable and good-quality yield under water-limited conditions. Breeding of drought-resistant genotypes should be considered a priority in agricultural research. Researchers should focus on finding the mechanisms or traits responsible for crop resistance to drought. There is a need to study the relationship between activation of dehydration avoidance and/or dehydration tolerance strategies and plant resistance, using well-defined criteria. The research should concentrate on traits and mechanisms, which facilitate crops resistance to drought and provide good and stable yielding.

This Special Issue of Plants will thus present research focused on the impact of drought on plant response at the molecular, biochemical, and physiological level along with explaining the relationships between these responses and traits characterizing plant growth and crop yields. All research within these themes is welcome.

Prof. Dr. Hanna Bandurska
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. 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

  • Water deficit
  • Water status
  • Water use
  • Drought resistance
  • Dehydration avoidance
  • Dehydration tolerance
  • Osmotic adjustment
  • Osmoprotectants
  • Membrane injury
  • Stress signaling
  • Signal transduction
  • Gene expression
  • Epigenetics
  • Metabolite profiling
  • Metabolimics
  • Transcription factors
  • Reactive oxygen species
  • Antioxidants
  • Antioxidant enzymes
  • Growth regulators
  • Hormones
  • Chlorophyll fluorescence
  • Gas exchange
  • Stomatal functioning
  • Root-to-shoot signaling
  • Biomass
  • Productivity
  • Yield components

Published Papers (2 papers)

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Research

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16 pages, 2998 KiB  
Article
Integration of Physiological and Molecular Traits Would Help to Improve the Insights of Drought Resistance in Highbush Blueberry Cultivars
by Karen Balboa, Gabriel I. Ballesteros and Marco A. Molina-Montenegro
Plants 2020, 9(11), 1457; https://doi.org/10.3390/plants9111457 - 29 Oct 2020
Cited by 11 | Viewed by 2169
Abstract
Water deficit or drought is one of the most severe factors limiting plant yield or fruit quality. Thus, water availability for irrigation is decisive for crop success, such as the case of highbush blueberry (Vaccinium corymbosum L.). Therefore, drought stress may compromise [...] Read more.
Water deficit or drought is one of the most severe factors limiting plant yield or fruit quality. Thus, water availability for irrigation is decisive for crop success, such as the case of highbush blueberry (Vaccinium corymbosum L.). Therefore, drought stress may compromise blueberry production due to lower fruit weight or fruit yield. Despite this, it is unclear if there is any difference in the response of blueberry cultivars to water deficit, either in terms of physiological and molecular parameters, or in terms of their sensitivity or resistance to drought. In this study, we determined the effect of drought on different physiological parameters in blueberry plants (relative water content (RWC), photochemical efficiency of photosystem II (Fv/Fm), Carbon Isotopic Discrimination, and proline content) in six V. corymbosum cultivars. We also explored molecular responses in terms of gene expression coding for late embryogenesis abundant proteins. Finally, we estimated cultivar water deficit resistance using an integrative model based on physiological results. Upon water deficit conditions, we found reductions in Fv/Fm, RWC, and isotopic discrimination of 13C (Δ13C), while proline content increased significantly for all cultivars. Additionally, we also found differences in the estimated water deficit resistance index. These results indicate differences in water deficit resistance, possibly due to variations in cultivars’ genetic composition. Full article
(This article belongs to the Special Issue Plant under Drought 2020-2021)
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Review

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16 pages, 1106 KiB  
Review
Exploration of Epigenetics for Improvement of Drought and Other Stress Resistance in Crops: A Review
by Chao Sun, Kazim Ali, Kan Yan, Sajid Fiaz, Richard Dormatey, Zhenzhen Bi and Jiangping Bai
Plants 2021, 10(6), 1226; https://doi.org/10.3390/plants10061226 - 16 Jun 2021
Cited by 36 | Viewed by 6409
Abstract
Crop plants often have challenges of biotic and abiotic stresses, and they adapt sophisticated ways to acclimate and cope with these through the expression of specific genes. Changes in chromatin, histone, and DNA mostly serve the purpose of combating challenges and ensuring the [...] Read more.
Crop plants often have challenges of biotic and abiotic stresses, and they adapt sophisticated ways to acclimate and cope with these through the expression of specific genes. Changes in chromatin, histone, and DNA mostly serve the purpose of combating challenges and ensuring the survival of plants in stressful environments. Epigenetic changes, due to environmental stress, enable plants to remember a past stress event in order to deal with such challenges in the future. This heritable memory, called “plant stress memory”, enables plants to respond against stresses in a better and efficient way, not only for the current plant in prevailing situations but also for future generations. Development of stress resistance in plants for increasing the yield potential and stability has always been a traditional objective of breeders for crop improvement through integrated breeding approaches. The application of epigenetics for improvements in complex traits in tetraploid and some other field crops has been unclear. An improved understanding of epigenetics and stress memory applications will contribute to the development of strategies to incorporate them into breeding for complex agronomic traits. The insight in the application of novel plant breeding techniques (NPBTs) has opened a new plethora of options among plant scientists to develop germplasms for stress tolerance. This review summarizes and discusses plant stress memory at the intergenerational and transgenerational levels, mechanisms involved in stress memory, exploitation of induced and natural epigenetic changes, and genome editing technologies with their future possible applications, in the breeding of crops for abiotic stress tolerance to increase the yield for zero hunger goals achievement on a sustainable basis in the changing climatic era. Full article
(This article belongs to the Special Issue Plant under Drought 2020-2021)
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