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Physiological and Molecular Studies on Plant Bioactive Compounds under Environmental Stresses

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: closed (31 October 2022) | Viewed by 5041

Special Issue Editors


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Guest Editor
Polish Academy of Sciences, The Franciszek Górski Institute of Plant Physiology, Niezapominajek 21, 30-239 Kraków, Poland
Interests: abiotic stress; water stress and rehydration; plant stress physiology; plant molecular biology; cereals; invasive plants; photosynthetic apparatus; plant phenolics
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Plant Breeding, Physiology and Seed Science, Faculty of Agriculture and Economics, Agricultural University, ul. Podużna 3, 30-239 Kraków, Poland
Interests: abiotic and biotic stress; plant stress physiology; plant molecular biology; primary and secondary metabolism; reactive oxygen species; antioxidants
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
The Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland
Interests: plant senescence; water stress; drought; waterlogging; plant phenolics; gas exchange; photosynthetic apparatus; cereal; plant growth regulators; gene expression
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Plant bioactive compounds, such as carbohydrates, phenolics, amino acids, polyamines, low-molecular antioxidants, alkaloids and phytohormones, are broadly distributed in the plant kingdom and are synthesized through different and very complex pathways. Their metabolism is associated with an enormous range of compounds, functions, the intracellular transport, enzymes and having a wide spectrum of genes regulation. These compounds are involved in defence mechanisms against UV radiation, pathogens, parasites, herbivores and are an integral part of the plant response to soil drought, salinity, heavy metals, temperature stresses and nutrient deficiency, most of them capable of scavenging harmful reactive oxygen species in various organisms. Despite numerous studies in this extensive field, our knowledge is still far from complete and much still needs to be recognized in this subject, with special attention on novel aspects of their metabolism, signal pathway, genes regulation and the connections between these metabolic pathways.

This Special Issue of IJMS aims to present recent progress in molecular and physiological studies concerning plant bioactive compounds under environmental stresses. Authors are invited to submit original research papers, communications and reviews exploring different aspects of this topic.

Dr. Tomasz Hura
Prof. Dr. Katarzyna Hura
Dr. Agnieszka Ostrowska
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. 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

  • carbohydrates
  • phenolics
  • amino acids
  • polyamines
  • low-molecular antioxidants
  • alkaloids
  • phytohormones
  • primary metabolism
  • secondary metabolism
  • abiotic stress
  • biotic stress
  • multistress
  • stress signalling
  • biosynthesis
  • gene expression

Published Papers (1 paper)

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Review

36 pages, 1291 KiB  
Review
Using Exogenous Melatonin, Glutathione, Proline, and Glycine Betaine Treatments to Combat Abiotic Stresses in Crops
by Memoona Khalid, Hafiz Mamoon Rehman, Nisar Ahmed, Sehar Nawaz, Fozia Saleem, Shakeel Ahmad, Muhammad Uzair, Iqrar Ahmad Rana, Rana Muhammad Atif, Qamar U. Zaman and Hon-Ming Lam
Int. J. Mol. Sci. 2022, 23(21), 12913; https://doi.org/10.3390/ijms232112913 - 26 Oct 2022
Cited by 34 | Viewed by 4598
Abstract
Abiotic stresses, such as drought, salinity, heat, cold, and heavy metals, are associated with global climate change and hamper plant growth and development, affecting crop yields and quality. However, the negative effects of abiotic stresses can be mitigated through exogenous treatments using small [...] Read more.
Abiotic stresses, such as drought, salinity, heat, cold, and heavy metals, are associated with global climate change and hamper plant growth and development, affecting crop yields and quality. However, the negative effects of abiotic stresses can be mitigated through exogenous treatments using small biomolecules. For example, the foliar application of melatonin provides the following: it protects the photosynthetic apparatus; it increases the antioxidant defenses, osmoprotectant, and soluble sugar levels; it prevents tissue damage and reduces electrolyte leakage; it improves reactive oxygen species (ROS) scavenging; and it increases biomass, maintains the redox and ion homeostasis, and improves gaseous exchange. Glutathione spray upregulates the glyoxalase system, reduces methylglyoxal (MG) toxicity and oxidative stress, decreases hydrogen peroxide and malondialdehyde accumulation, improves the defense mechanisms, tissue repairs, and nitrogen fixation, and upregulates the phytochelatins. The exogenous application of proline enhances growth and other physiological characteristics, upregulates osmoprotection, protects the integrity of the plasma lemma, reduces lipid peroxidation, increases photosynthetic pigments, phenolic acids, flavonoids, and amino acids, and enhances stress tolerance, carbon fixation, and leaf nitrogen content. The foliar application of glycine betaine improves growth, upregulates osmoprotection and osmoregulation, increases relative water content, net photosynthetic rate, and catalase activity, decreases photorespiration, ion leakage, and lipid peroxidation, protects the oxygen-evolving complex, and prevents chlorosis. Chemical priming has various important advantages over transgenic technology as it is typically more affordable for farmers and safe for plants, people, and animals, while being considered environmentally acceptable. Chemical priming helps to improve the quality and quantity of the yield. This review summarizes and discusses how exogenous melatonin, glutathione, proline, and glycine betaine can help crops combat abiotic stresses. Full article
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