Abiotic Stress Responses in Plants—Second Edition

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 May 2026 | Viewed by 103

Special Issue Editor


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Guest Editor
Department of Agricultural and Environmental Science, University of Bari Aldo Moro, Via Orabona, 4, 70126 Bari, Italy
Interests: soil water plant relations; abiotic stresses; agronomy; herbaceous crops; quinoa; amaranth
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Special Issue Information

Dear Colleagues,

Abiotic stress is a significant concern due to its effects on plant survival and productivity; it is responsible for significant losses in crop production worldwide. Abiotic stress can be defined as all the negative impacts caused by non-living factors on an organism. These include drought, salinity, low or high temperatures, contamination, and other extreme conditions. Plants have adapted multiple responses to abiotic stress, making it more challenging to counteract than biotic stress. Therefore, more research is needed to understand the mechanisms exploited by different plant species to respond to abiotic stresses at the molecular, cellular, tissue, anatomical, morphological, and physiological levels. This Special Issue of Plants endeavors to collect as much information as possible on the responses of plants to abiotic stress and to propose novel solutions to increase the adaptability of plants to perceived stress.

The first edition can be found at the following link: https://www.mdpi.com/journal/plants/special_issues/0MFU839E25.

Dr. Cataldo Pulvento
Guest Editor

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Keywords

  • drought tolerance
  • heat tolerance
  • flooding tolerance
  • cold tolerance
  • soil acidity
  • iron toxicity

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Published Papers (1 paper)

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Research

21 pages, 5398 KiB  
Article
Enhancing UV-B Protection and Abiotic Stress Tolerance in Tomato Plants: The Role of Silicon Nanoparticles in Photosynthetic Parameters, Pigments, and Secondary Metabolite Production
by Florina Copaciu, Cosmin-Alin Faur, Andrea Bunea, Loredana Leopold, Rodica Maria Sima, Mihai Andrei Lăcătuș, Andreea Lupitu, Cristian Moisa, Dana Maria Copolovici and Lucian Copolovici
Plants 2025, 14(16), 2599; https://doi.org/10.3390/plants14162599 - 21 Aug 2025
Abstract
Tomato fruit (Solanum lycopersicum) is a valuable agricultural crop worldwide due to its nutritional value and culinary applications, making it one of the most widely consumed vegetables in the human diet. However, excessive solar UV-B radiation represents a significant factor in [...] Read more.
Tomato fruit (Solanum lycopersicum) is a valuable agricultural crop worldwide due to its nutritional value and culinary applications, making it one of the most widely consumed vegetables in the human diet. However, excessive solar UV-B radiation represents a significant factor in decreasing productivity, marketable yields, and fruit quality in tomato crops by causing damage to both DNA and the photosynthetic system, as well as chlorophyll degradation. The application of silicon nanoparticles has been shown to increase tolerance to abiotic stressors, including enhanced UV-B radiation. Therefore, this study aims to evaluate the protective effects of foliar silicon nanoparticle (SiNP) application on photosynthetic parameters, photosynthetic pigments, and secondary metabolites under enhanced UV-B stress in tomato plants. Photosynthetic parameters (stomatal conductance to water vapor, net CO2 assimilation rate, transpiration rate, and intercellular CO2 molar fraction), biogenic volatile organic compounds (BVOCs), chlorophylls, and carotenoids were evaluated. The application of SiNPs showed beneficial effects on plants grown under ambient UV-B conditions, increasing photosynthetic parameters while also enhancing chlorophyll and carotenoid levels. In plants exposed to enhanced UV-B radiation, SiNP treatment helped to maintain and even improve photosynthetic parameters and stomatal function in leaves while also promoting the accumulation of photosynthetic pigments. Additionally, the application of SiNPs also resulted in a slightly higher content of lycopene and total carotenoids in tomato fruits. Full article
(This article belongs to the Special Issue Abiotic Stress Responses in Plants—Second Edition)
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