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Antioxidant System of Plants—Changes during Development and Multi Stress Response
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Antioxidant System of Plants—Changes during Development and Multi Stress Response

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: closed (30 November 2021) | Viewed by 4545

Special Issue Editors

Dr. Anna M. Kołton

E-Mail Website
Guest Editor
Department of Botany and Plant Physiology, University of Agriculture in Krakow, 31-120 Krakow, Poland
Interests: plant physiology; stress reaction; light; hypoxia
Prof. Dr. Alina Wiszniewska

E-Mail Website
Guest Editor
Department of Botany and Plant Physiology, University of Agriculture in Krakow, 31-120 Krakow, Poland
Interests: extreme plant habitats; pollutant removal; eco-efficiency; plant responses to stress factors; plant organ/organism level; plant tissue culture; multiple stress factors; water scarcity; salinity; trace elements
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

During growth and development, plants are exposed to changing environmental factors. These factors can have a negative effect on the functioning of plants and change their metabolism and chemical composition. Stressful conditions often cause oxidative impairments that the plant defeats with its antioxidant system, activating one of the most versatile mechanisms of stress defence. The reactions of the antioxidant system may differ at various stages of plant life, from seedlings to maturity and senescence. In addition, due to their sessile nature, plants are often exposed to more than one stress factor simultaneously or in succession. The response of plants to multiple stress factors is not a simple sum of the responses to each individual stress. Laboratory studies usually examine the influence of one specific factor on plant functioning. However, in natural conditions, several factors may interact at the same time, diversifying plant responses. The results of experiments concerning the impact of a single factor do not always correspond to the observations made in the environment.

Therefore, we encourage the scientific community to present experiments focusing on plant reaction to two or more stresses applied simultaneously or in sequence. An insight into the changes taking place in the plant antioxidant system during combined stress will allow understanding the reactions occurring in environmental conditions. It will broaden the knowledge of plant stress physiology and may contribute to crop yield improvement. An interesting aspect is also the functioning and modulation of antioxidant machinery during ontogenesis. We encourage you to present studies reporting on enzymatic and non-enzymatic antioxidants, particularly in relation to their quantity, activity, cellular localization, as well as regulation of their biosynthesis at the level of gene expression and phytohormonal signalling.

Dr. Anna M. Kołton
Prof. Dr. Alina Wiszniewska
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

  • enzymatic antioxidants
  • non-enzymatic antioxidants
  • oxidative stress
  • ontogenesis
  • multiple stress
  • co-tolerance
  • crosstalk
  • reaction mechanism
  • reactive oxygen species
  • activity
  • content
  • stress combination

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Published Papers (2 papers)

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Research

13 pages, 2023 KiB  
Article
Effect of Pb-Contaminated Water on Ludwigia stolonifera (Guill. & Perr.) P.H. Raven Physiology and Phytoremediation Performance
by Amany Aboelkassem, Nurah M. Alzamel, Mashail Nasser Alzain and Naglaa Loutfy
Plants 2022, 11(5), 636; https://doi.org/10.3390/plants11050636 - 26 Feb 2022
Cited by 4 | Viewed by 1977
Abstract
A laboratory experiment was led to examine the lead bioaccumulation capacity of Ludwigia stolonifera (Guill. & Perr.) exposed to various Pb concentrations (0, 10, 25, 50, and 100 mg/L) for 1, 3, 5, and 7 days. The lead accumulation increased as the metal [...] Read more.
A laboratory experiment was led to examine the lead bioaccumulation capacity of Ludwigia stolonifera (Guill. & Perr.) exposed to various Pb concentrations (0, 10, 25, 50, and 100 mg/L) for 1, 3, 5, and 7 days. The lead accumulation increased as the metal concentrations in the solution increased and over time, to an extreme accretion of 6840 mg/kg DW(dry weight) at 100 mg/L of lead on the 10 days exposure. The proportion removal efficiency, translocation factor, and bioconcentration factor of the plant were assessed. The maximum bioconcentration factor values (1981.13) indicate that the plant was a Pb hyperaccumulator, and translocation factor values (1.85), which are >1, indicate fit of L. stolonifera for eliminating Pb in Pb-contaminated water. Photosynthetic pigments were decreased with increase of Pb concentration and time exposure. Total chlorophyll content and Chl a/b ratio lowered to between 46 and 62% at 100 mg/L Pb after 10 days exposure. Protein content and soluble carbohydrate indicated a similar trend, which showed the highest decrease (7.26 and 36.2 mg/g FW(fresh weight), respectively) at 100 mg/L of Pb after 10 days. The activity of the antioxidant enzymes superoxide dismutase, ascorbate, and peroxidase was increased significantly in comparison to the control. The results indicate that L. stolonifera is a newly recognized Pb hyperaccumulator (6840 mg/kg DW), but physiological status indicates that the plant is not tolerant to high Pb concentrations. Full article
(This article belongs to the Special Issue Antioxidant System of Plants—Changes during Development and Multi Stress Response)
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15 pages, 2232 KiB  
Article
Exogenous Stilbenes Improved Tolerance of Arabidopsis thaliana to a Shock of Ultraviolet B Radiation
by Zlata V. Ogneva, Vlada V. Volkonskaia, Alexandra S. Dubrovina, Andrey R. Suprun, Olga A. Aleynova and Konstantin V. Kiselev
Plants 2021, 10(7), 1282; https://doi.org/10.3390/plants10071282 - 24 Jun 2021
Cited by 3 | Viewed by 1988
Abstract
Excessive ultraviolet B (UV-B) irradiation is one of the most serious threats leading to severe crop production losses. It is known that secondary metabolite biosynthesis plays an important role in plant defense and forms a protective shield against excessive UV-B irradiation. The contents [...] Read more.
Excessive ultraviolet B (UV-B) irradiation is one of the most serious threats leading to severe crop production losses. It is known that secondary metabolite biosynthesis plays an important role in plant defense and forms a protective shield against excessive UV-B irradiation. The contents of stilbenes and other plant phenolics are known to sharply increase after UV-B irradiation, but there is little direct evidence for the involvement of stilbenes and other plant phenolics in plant UV-B protection. This study showed that foliar application of trans-resveratrol (1 and 5 mM) and trans-piceid (5 mM) considerably increased tolerance to a shock of UV-B (10 min at 1800 µW cm−2 of irradiation intensity) of four-week-old Arabidopsis thaliana plants that are naturally incapable of stilbene production. Application of trans-resveratrol and trans-piceid increased the leaf survival rates by 1–2%. This stilbene-induced improvement in UV-B tolerance was higher than after foliar application of the stilbene precursors, p-coumaric and trans-cinnamic acids (only 1–3%), but less than that after treatment with octocrylene (19–24%), a widely used UV-B absorber. Plant treatment with trans-resveratrol increased expression of antioxidant and stress-inducible genes in A.thaliana plants and decreased expression of DNA repair genes. This study directly demonstrates an important positive role of stilbenes in plant tolerance to excessive UV-B irradiation, and offers a new approach for plant UV-B protection. Full article
(This article belongs to the Special Issue Antioxidant System of Plants—Changes during Development and Multi Stress Response)
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