Tolerance to Drought and Salt Stress in Plants, 3rd Edition

Topic Information

Dear Colleagues,

Following the successful completion of Volume I and II of “Tolerance to Drought and Salt Stress in Plants” and the great interest shown in this research topic, we are pleased to announce the launch of Volume III.

The current climate change scenario is accelerating degradation, desertification, and salinization; drought and salinization are the major threats to agriculture worldwide. Therefore, elucidating the mechanisms  in plant stress tolerance is critical to relieving the effects of drought and salt stresses on plant growth.

This Topic will focus on recent advances in drought and salt tolerance in crop plants. Submissions of original research articles, reviews, minireviews, and short communications are welcome.

Prof. Dr. Veronica De Micco
Prof. Dr. Roberto Barbato
Dr. Daniela Trono
Topic Editors

Keywords

Participating Journals

Journal Name	Impact Factor	CiteScore	Launched Year	First Decision (median)	APC
Agriculture agriculture	4.5	7.8	2011	18.8 Days	CHF 2600	Submit
Agronomy agronomy	4.1	7.6	2011	17 Days	CHF 2600	Submit
Horticulturae horticulturae	3.4	6.1	2015	16.7 Days	CHF 2200	Submit
International Journal of Plant Biology ijpb	-	4.2	2010	17 Days	CHF 1400	Submit
Plants plants	4.7	8.5	2012	16.5 Days	CHF 2700	Submit
Stresses stresses	-	10.0	2021	22 Days	CHF 1200	Submit

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Published Papers (3 papers)

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All Agriculture Agronomy Horticulturae IJPB Plants Stresses

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Open AccessArticle

Temporal Changes in Putrescine-Induced Protective Mechanisms at Metabolite and Gene Expression Levels in Wheat and Maize Against Osmotic Stress

by Magda Pál, Kamirán Áron Hamow, Gabriella Szalai, Tibor Janda and Kinga Benczúr

Stresses 2026, 6(2), 37; https://doi.org/10.3390/stresses6020037 - 18 Jun 2026

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Abstract

Polyamine treatments are beneficial against various stress factors due to direct protective effects and the regulation of metabolite remodelling and gene expression. However, their protective, specific effects as priming under stress conditions remain not fully understood. We hypothesised that the positive effect of [...] Read more.

Polyamine treatments are beneficial against various stress factors due to direct protective effects and the regulation of metabolite remodelling and gene expression. However, their protective, specific effects as priming under stress conditions remain not fully understood. We hypothesised that the positive effect of priming decreases even shortly after priming. To investigate the duration of action of putrescine treatment against osmotic stress, and to reveal species- and time-dependent differences, the effects of putrescine seed-soaking were monitored in wheat and maize during osmotic stress. The putrescine pre-treatment was effective in both species against osmotic stress during three trials ran in parallel, even when the stress was applied 7 days after seed-soaking. Leaves and roots responded differently, and putrescine induced certain unique changes under control and osmotic stress conditions. The effects of the treatments at the metabolite level changed between the sub-experiments and differed between the two species. Putrescine alone had an increasing effect on jasmonic acid-isoleucine level in the roots of both wheat and maize, and it induced the expression of WRKY97 in both the leaves and roots of maize plants throughout the experiment. These results highlight that different hormonal and transcriptional changes induced by putrescine were associated with the observed positive effects. Full article

(This article belongs to the Topic Tolerance to Drought and Salt Stress in Plants, 3rd Edition)

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18 pages, 6178 KB  

Open AccessArticle

Preliminary Assessment of Stomatal Regulation in Vitis vinifera L. cv. País from Contrasting Provenances Under Water Deficit

by Marco Garrido-Salinas, Alicia Puelles, María José Peralta-Scholz, Emilio Villalobos-Soublett, Ismael Opazo, Nicolás Verdugo-Vásquez, Fabio Corradini and Carlos Faúndez

Agriculture 2026, 16(12), 1281; https://doi.org/10.3390/agriculture16121281 - 9 Jun 2026

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Abstract

Water scarcity increasingly threatens viticulture, yet the drought-response strategy of patrimonial cultivars such as País remains poorly characterized. This study evaluated intra-cultivar variation in the drought response of three País provenances from northern Chile (Arica, Huasco, and Limarí), using Cabernet Franc as a [...] Read more.

Water scarcity increasingly threatens viticulture, yet the drought-response strategy of patrimonial cultivars such as País remains poorly characterized. This study evaluated intra-cultivar variation in the drought response of three País provenances from northern Chile (Arica, Huasco, and Limarí), using Cabernet Franc as a reference cultivar. The experiment was conducted under semi-controlled pot conditions at the Limarí Campus of the University of La Serena, Ovalle, Chile, using a completely randomized design (n = 5). Plants were subjected to a four-week dry-down followed by rewatering. Relative pot water content, stem water potential, and stomatal conductance were monitored, and stomatal thresholds (Pg12, Pg50, and Pg88) were estimated from nonlinear vulnerability curves. Water deficit reduced plant water status and stomatal conductance. Cabernet Franc maintained the highest maximum stomatal conductance, whereas País showed a more conservative stomatal pattern. Within País, Pg50 differences were weakly supported and model-dependent: Huasco tended to reach 50% stomatal reduction at more negative stem water potentials than Arica and Limarí, while Pg12 and Pg88 largely overlapped. After rewatering, stem water potential recovered faster than stomatal conductance, particularly in Arica and Limarí. These results indicate that drought-response variation in País reflects provenance-specific stomatal regulation and recovery rather than source-site aridity alone. Full article

(This article belongs to the Topic Tolerance to Drought and Salt Stress in Plants, 3rd Edition)

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17 pages, 1548 KB  

Open AccessArticle

Synergistic Effects of Ascorbic Acid By-Product and Poly-γ-Glutamic Acid on Maize Seedling Growth and Soil Properties Under Drought Stress

by Meiqiu Jiang, Mingfu Gao, Weichao Yang, Hao Sun and Hui Xu

Agriculture 2026, 16(9), 929; https://doi.org/10.3390/agriculture16090929 - 23 Apr 2026

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Abstract

Drought stress severely restricts agricultural productivity. Effective drought mitigation requires both improved rhizosphere water retention and enhanced nutrient availability. Poly-γ-glutamic acid (PGA) was expected to enhance water retention, while residue after evaporation (RAE) of 2-keto-L-gulonic acid fermentation was expected to supply labile carbon [...] Read more.

Drought stress severely restricts agricultural productivity. Effective drought mitigation requires both improved rhizosphere water retention and enhanced nutrient availability. Poly-γ-glutamic acid (PGA) was expected to enhance water retention, while residue after evaporation (RAE) of 2-keto-L-gulonic acid fermentation was expected to supply labile carbon and promote nutrient mobilization. We hypothesized that their combined application would synergistically optimize the rhizosphere environment and enhance maize seedlings’ resistance to drought. A pot experiment was conducted to evaluate the growth of maize under simulated drought conditions, containing four treatments: control (C), RAE alone (R), PGA alone (P), and their combination (M). Results demonstrated that the M treatment synergistically promoted maize seedling growth, increasing the seedling growth index by 125% compared to the control. Co-application also synergistically enhanced the accumulation of osmotic adjustment substances (proline, soluble proteins, and soluble sugars) and ascorbic acid content, while reducing malondialdehyde (MDA) level. Furthermore, the M treatment markedly increased soil ammonium nitrogen and total organic carbon, thereby improving soil moisture and optimizing the rhizosphere conditions. Mantel analysis revealed that the M treatment restructured soil bacterial communities and enzyme activities by enhancing nutrient and organic carbon availability, which subsequently improved overall soil properties. These findings suggest that co-application of PGA and RAE improves maize seedling drought resilience and soil nutrient supply, offering a promising and economically viable strategy for sustainable agriculture in drought-prone regions by valorizing industrial by-products. Full article

(This article belongs to the Topic Tolerance to Drought and Salt Stress in Plants, 3rd Edition)

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