Topic Editors

Prof. Dr. Roberto Barbato
Department of Science and Technological Innovation, University of Eastern Piedmont, I-15121 Alessandria, Italy
Prof. Dr. Veronica De Micco
Department of Agricultural Sciences, University of Naples Federico II, via Università, 100, 80055 Portici (Naples), Italy

Tolerance to Drought and Salt Stress in Plants

Abstract submission deadline
30 September 2023
Manuscript submission deadline
30 November 2023
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Topic Information

Dear Colleagues,

The current climate change scenario is accelerating degradation, desertification, and salinization; the latter two are major threats to agriculture worldwide. Elucidating plant stress tolerance mechanisms 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. Original research articles, reviews, mini reviews, and short communications are welcome.

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

Keywords

  • drought stress
  • salt stress
  • climate change
  • crop
  • plants

Participating Journals

Journal Name Impact Factor CiteScore Launched Year First Decision (median) APC
Agriculture
agriculture
3.408 3.1 2011 19.8 Days 1800 CHF Submit
Agronomy
agronomy
3.949 3.9 2011 18.7 Days 2000 CHF Submit
Horticulturae
horticulturae
2.923 1.8 2015 15.9 Days 1600 CHF Submit
International Journal of Plant Biology
ijpb
- 1.2 2010 14.4 Days 1000 CHF Submit
Plants
plants
4.658 3.6 2012 13.3 Days 2200 CHF Submit

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Published Papers (3 papers)

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Article
Overexpression of Maize Glutathione S-Transferase ZmGST26 Decreases Drought Resistance of Arabidopsis
Agronomy 2022, 12(12), 2948; https://doi.org/10.3390/agronomy12122948 - 24 Nov 2022
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Abstract
Drought stress critically endangers the growth and development of crops. Glutathione S-transferase plays a vital role in response to abiotic stress. However, there are few studies on the role of glutathione S-transferase in maize drought stress. In this study, the significantly downregulated expression [...] Read more.
Drought stress critically endangers the growth and development of crops. Glutathione S-transferase plays a vital role in response to abiotic stress. However, there are few studies on the role of glutathione S-transferase in maize drought stress. In this study, the significantly downregulated expression of ZmGST26 in roots under drought stress was analyzed by qRT-PCR. Promoter analyses showed that there were several cis-acting elements related to drought stress and that were involved in oxidative response in the promoter region of ZmGST26. Subcellular localization results showed that ZmGST26 was localized in the nucleus. The transgenic lines of the Arabidopsis over-expressing ZmGST26 were more sensitive to drought stress and ABA in seed germination and inhibited ABA-mediated stomatal closure. Under drought stress, phenotypic analyses showed that the germination rate, root length and survival rate of ZmGST26 overexpressing lines were significantly lower than those of wild-type lines. The determination of physiological and biochemical indexes showed that the water loss rate, malondialdehyde, O2 and H2O2 of the overexpression lines significantly increased compared with wild-type Arabidopsis, but the antioxidant enzyme activities (CAT, SOD and POD), and proline and chlorophyll contents were significantly reduced. Subsequently, the qRT-PCR analysis of drought stress-related gene expression showed that, under drought stress conditions, the expression levels of DREB2A, RD29A, RD29B and PP2CA genes in ZmGST26 overexpression lines were significantly lower than those in wild-type Arabidopsis. In summary, ZmGST26 reduced the drought resistance of plants by aggravating the accumulation of reactive oxygen species in Arabidopsis. Full article
(This article belongs to the Topic Tolerance to Drought and Salt Stress in Plants)
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Article
Efficiency of Sodium and Calcium Chloride in Conferring Cross-Tolerance to Water Deficit in Periwinkle
Horticulturae 2022, 8(11), 1091; https://doi.org/10.3390/horticulturae8111091 - 18 Nov 2022
Viewed by 403
Abstract
The potential of using pre-stress NaCl or CaCl2 applications to confer a cross-tolerance to a water deficit was evaluated in periwinkle. The plants initially received five applications of NaCl (0, 30 and 50 mM), or CaCl2 (15 and 25 mM) via [...] Read more.
The potential of using pre-stress NaCl or CaCl2 applications to confer a cross-tolerance to a water deficit was evaluated in periwinkle. The plants initially received five applications of NaCl (0, 30 and 50 mM), or CaCl2 (15 and 25 mM) via irrigation, and then they were cultivated under different water deficit regimes (80, 50 and 20% available water content). The water deficit induced smaller and denser stomata. It promoted a water use efficiency, a proline content and antioxidant enzyme activity. However, it downgraded the aesthetic value (plant stature, flower size and vegetation greenness), magnified the stem bending probability and strongly decreased the floral longevity. It additionally impeded the growth by reductions in the leaf area and photosynthesis. Plants undergoing a water deficit maintained a lower hydration and expressed oxidative damage symptoms, including enhanced chlorophyll and membrane degradation. As the water deficit intensified, these effects were more pronounced. Pre-stress CaCl2 or NaCl applications generally restored most of the water severity-induced effects, with the former being more effective. For CaCl2, the highest concentration (25 mM) was generally optimal, whereas NaCl was the lowest concentration (30 mM). In conclusion, pre-stress CaCl2 or NaCl applications effectively confer a cross-tolerance to the water deficit by promoting the aesthetic value and extending the floral longevity, with the promotive effects being incremental as the water deficit becomes more severe. Full article
(This article belongs to the Topic Tolerance to Drought and Salt Stress in Plants)
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Article
Selection of Soybean Genotypes under Drought and Saline Stress Conditions Using Manhattan Distance and TOPSIS
Plants 2022, 11(21), 2827; https://doi.org/10.3390/plants11212827 - 24 Oct 2022
Viewed by 439
Abstract
The search for soybean genotypes more adapted to abiotic stress conditions is essential to boost the development and yield of the crop in Brazil and worldwide. In this research, we propose a new approach using the concept of distance (or similarity) in a [...] Read more.
The search for soybean genotypes more adapted to abiotic stress conditions is essential to boost the development and yield of the crop in Brazil and worldwide. In this research, we propose a new approach using the concept of distance (or similarity) in a vector space that can quantify changes in the morphological traits of soybean seedlings exposed to stressful environments. Thus, this study was conducted to select soybean genotypes exposed to stressful environments (saline or drought) using similarity based on Manhattan distance and the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) method. TOPSIS is a multi-criteria decision method for selecting the best alternative using the concept of distance. The use of TOPSIS is essential because the genotypes are not absolutely similar in both treatments. That is, just the distance measure is not enough to select the best genotype simultaneously in the two stress environments. Drought and saline stresses were induced by exposing seeds of 70 soybean genotypes to −0.20 MPa iso-osmotic solutions with polyethylene glycol–PEG 6000 (119.6 g L−1) or NaCl (2.36 g L−1) for 14 days at 25 °C. The germination rate, seedling length, and seedling dry matter were measured. We showed here how the genotypic stability of soybean plants could be quantified by TOPSIS when comparing drought and salinity conditions to a non-stressful environment (control) and how this method can be employed under different conditions. Based on the TOPSIS method, we can select the best soybean genotypes for environments with multiple abiotic stresses. Among the 70 tested soybean genotypes, RK 6813 RR, ST 777 IPRO, RK 7214 IPRO, TMG 2165 IPRO, 5G 830 RR, 98R35 IPRO, 98R31 IPRO, RK 8317 IPRO, CG 7464 RR, and LG 60177 IPRO are the 10 most stable genotypes under drought and saline stress conditions. Owing to high stability and gains with selection verified for these genotypes under salinity and drought conditions, they can be used as genitors in breeding programs to obtain offspring with higher resistance to antibiotic stresses. Full article
(This article belongs to the Topic Tolerance to Drought and Salt Stress in Plants)
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