Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
5.4
4.5
Journals
Plants
Special Issues
The Role of Salicylic Acid in Mitigating Plant Stress and...
share announcement

The Role of Salicylic Acid in Mitigating Plant Stress and Its Application in Agriculture

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Physiology and Metabolism".

Deadline for manuscript submissions: closed (31 May 2022) | Viewed by 17059

Special Issue Editor

Dr. Ágnes Szepesi

E-Mail Website
Guest Editor
Department of Plant Biology, University of Szeged, H-6726 Szeged, Hungary
Interests: polyamines; salt stress; reactive oxygen species; hypusination; antioxidant defence system
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Salicylic acid (SA) is one of the most fascinating plant hormones, and is involved in several stress responses (biotic and abiotic) in plants. As our knowledge of SA receptor and signaling pathways is increasing, more information could help us to efficiently use this compound in different manners to mitigate plant stress responses. Increasing evidence indicates that SA could be an efficient growth regulator or biostimulant by adjusting secondary metabolites or promoting antioxidant defense mechanisms in plants suffering different stress conditions during extreme climate change. The comparison of two or more genotypes with different SA content is also welcome in this Issue. This Special Issue focuses on the role of SA in mitigating abiotic-stress-induced injuries in plants and gathering supporting information about SA-mediated protective mechanisms in many crop species in agriculture. New SA application modes could elucidate new strategies for increasing the climate resilience of our crops in order to achieve a sustainable agriculture industry.

This Special Issue welcomes the submission of review and research papers or short communications on topics related to SA-mediated stress responses and the efficient application of SA in agriculture.

Prof. Dr. Ágnes Szepesi
Guest Editor

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

  • salicylic acid
  • abiotic stress
  • antioxidant defense
  • nanotechnology
  • metabolites
  • sustainable agriculture

Published Papers (5 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

8 pages, 1939 KiB  
Communication
Short-Term Salicylic Acid Treatment Affects Polyamine Metabolism Causing ROS–NO Imbalance in Tomato Roots
by Ágnes Szepesi, Péter Poór and László Bakacsy
Plants 2022, 11(13), 1670; https://doi.org/10.3390/plants11131670 - 24 Jun 2022
Cited by 4 | Viewed by 1527
Abstract
The phytohormone salicylic acid (SA) can influence the polyamine metabolism in plants. Additionally, polyamines (PAs) can regulate the synthesis of SA, providing an exciting interplay between them not only in plant growth and development but also in biotic or abiotic stress conditions. The [...] Read more.
The phytohormone salicylic acid (SA) can influence the polyamine metabolism in plants. Additionally, polyamines (PAs) can regulate the synthesis of SA, providing an exciting interplay between them not only in plant growth and development but also in biotic or abiotic stress conditions. The effect of SA on polyamine metabolism of leaves is well-studied but the root responses are rarely investigated. In this study, tomato roots were used to investigate the effect of short-term exposition of SA in two different concentrations, a sublethal 0.1 mM and a lethal 1 mM. To explore the involvement of SA in regulating PAs in roots, the degradation of PAs was also determined. As both SA and PAs can induce reactive oxygen species (ROS) and nitric oxide (NO) production, the balance of ROS and NO was analyzed in root tips. The results showed that 0.1 mM SA induced the production of higher PAs, spermidine (Spd), and spermine (Spm), while 1 mM SA decreased the PA contents by activating degrading enzymes. Studying the ROS and NO levels in root tips, the ROS production was induced earlier than NO, consistent with all the investigated zones of roots. This study provides evidence for concentration-dependent rapid effects of SA treatments on polyamine metabolism causing an imbalance of ROS–NO in root tips. Full article
(This article belongs to the Special Issue The Role of Salicylic Acid in Mitigating Plant Stress and Its Application in Agriculture)
►▼ Show Figures

Graphical abstract

17 pages, 6075 KiB  
Article
Synergistic Effects of Salicylic Acid and Melatonin on Modulating Ion Homeostasis in Salt-Stressed Wheat (Triticum aestivum L.) Plants by Enhancing Root H+-Pump Activity
by Neveen B. Talaat and Bahaa T. Shawky
Plants 2022, 11(3), 416; https://doi.org/10.3390/plants11030416 - 02 Feb 2022
Cited by 27 | Viewed by 2271
Abstract
Salicylic acid (SA) and melatonin (MT) have been shown to play important roles in plant salt tolerance. However, the underlying mechanisms of SA–MT-interaction-mediated ionic homeostasis in salt-stressed plants are unknown. As a first investigation, this study aimed to clarify how SA–MT interaction affects [...] Read more.
Salicylic acid (SA) and melatonin (MT) have been shown to play important roles in plant salt tolerance. However, the underlying mechanisms of SA–MT-interaction-mediated ionic homeostasis in salt-stressed plants are unknown. As a first investigation, this study aimed to clarify how SA–MT interaction affects H+-pump activity in maintaining the desired ion homeostasis under saline conditions and its relation to ROS metabolism. Wheat (Triticum aestivum L.) plants were grown under non-saline or saline conditions and were foliar sprayed with 75 mg L−1 SA or 70 μM MT. The SA+MT combined treatment significantly increased N, P, K+, Fe, Zn, and Cu acquisition, accompanied by significantly lower Na+ accumulation in salt-stressed plants compared to non-stressed ones. Additionally, it significantly enhanced ATP content and H+-pump activity of the roots. The mitigation was also detected in the reduced superoxide radical content, electrolyte leakage, and lipoxygenase activity, as well as increased superoxide dismutase, catalase, peroxidase, and polyphenol oxidase activities; K+/Na+, Ca2+/Na+, and Mg2+/Na+ ratios; relative water content; membrane stability index; and free amino acid accumulation in treated plants. The novel evidence shows that the higher root H+-pump activity in treated plants is a tolerance mechanism that increases the salt tolerance via maintaining ionic homeostasis. Full article
(This article belongs to the Special Issue The Role of Salicylic Acid in Mitigating Plant Stress and Its Application in Agriculture)
►▼ Show Figures

Figure 1

15 pages, 2191 KiB  
Article
Foliar Application of Salicylic Acid Improves Salt Tolerance of Sorghum (Sorghum bicolor (L.) Moench)
by Ahmad Rajabi Dehnavi, Morteza Zahedi, Agnieszka Ludwiczak and Agnieszka Piernik
Plants 2022, 11(3), 368; https://doi.org/10.3390/plants11030368 - 28 Jan 2022
Cited by 15 | Viewed by 3345
Abstract
It has been reported that around the world, approximately 19.5% of all irrigated land and 2.1% of dry land is affected by salt stress, and these percentages continue to increase. Sorghum is the fifth most important cereal in the world and therefore research [...] Read more.
It has been reported that around the world, approximately 19.5% of all irrigated land and 2.1% of dry land is affected by salt stress, and these percentages continue to increase. Sorghum is the fifth most important cereal in the world and therefore research on its salt tolerance is of global importance. In our research, we focused on foliar application of salicylic acid (SA) on salt-stressed sorghum. We performed a pot experiment with two salt levels (0 and 100 mM sodium chloride NaCl) and five SA concentrations (0, 50, 100, 150 and 200 mg/L). Our results suggest that in saline conditions foliar application of SA induced an adaptive response to salinity by inducing proline accumulation as well as antioxidant enzymes activities and enhanced the protection of the photosynthetic machinery, maintained photosynthesis activities, and improved the growth of sorghum plants. These alleviation effects were depended on applied SA concentration. Under saline condition 150 mg/L, SA was the most effective for relieving the adverse effect of salt stress. Under non-saline conditions 100 mg/L SA was the best for improving sorghum growth and dry matter production. Our results demonstrated that foliar SA application is effective in improving sorghum growth under salinity. Full article
(This article belongs to the Special Issue The Role of Salicylic Acid in Mitigating Plant Stress and Its Application in Agriculture)
►▼ Show Figures

Figure 1

20 pages, 2834 KiB  
Article
Seed Treatment with Biostimulants Extracted from Weeping Willow (Salix babylonica) Enhances Early Maize Growth
by Hande Mutlu-Durak and Bahar Yildiz Kutman
Plants 2021, 10(7), 1449; https://doi.org/10.3390/plants10071449 - 15 Jul 2021
Cited by 12 | Viewed by 4368
Abstract
Biostimulants can be used as innovative and promising agents to address current needs of sustainable agriculture. Weeping willow tree (Salix babylonica) extracts are rich in many bioactive compounds, including, but not limited, to salicylates and phenolics. In this study, the potential [...] Read more.
Biostimulants can be used as innovative and promising agents to address current needs of sustainable agriculture. Weeping willow tree (Salix babylonica) extracts are rich in many bioactive compounds, including, but not limited, to salicylates and phenolics. In this study, the potential of willow bark (WB) and willow leaf (WL) extracts is evaluated as plant-based biostimulants to improve the early growth of maize (Zea mays) under control and salinity stress conditions. In 3 days, seed treatment with salicylic acid and willow extract increased the shoot FW of maize seedlings 130% and 225%, respectively. The root area was, on average, enhanced by 43% with SA and 87% with willow extract applications. Moreover, these extracts increased the leaf protein concentration and reduced the negative effects of salinity during early growth. Reductions in lipid peroxidation and specific activities of antioxidative enzymes by seed treatments with willow extracts suggests a mitigation of salinity-induced oxidative stress. For most reported traits, WL applications were at least as effective as WB applications. Results indicate that aqueous extracts of weeping willow leaves, as well as bark, can be used as seed treatment agents with biostimulant activity to improve seedling growth and establishment under control and stress conditions. Full article
(This article belongs to the Special Issue The Role of Salicylic Acid in Mitigating Plant Stress and Its Application in Agriculture)
►▼ Show Figures

Figure 1

13 pages, 1788 KiB  
Article
Physiological Responses of Salinized Fenugreek (Trigonellafoenum-graecum L.) Plants to Foliar Application of Salicylic Acid
by Reda E. Abdelhameed, Arafat Abdel Hamed Abdel Latef and Rania S. Shehata
Plants 2021, 10(4), 657; https://doi.org/10.3390/plants10040657 - 30 Mar 2021
Cited by 25 | Viewed by 3384
Abstract
Considering the detrimental effects of salt stress on the physiological mechanisms of plants in terms of growth, development and productivity, intensive efforts are underway to improve plant tolerance to salinity. Hence, an experiment was conducted to assess the impact of the foliar application [...] Read more.
Considering the detrimental effects of salt stress on the physiological mechanisms of plants in terms of growth, development and productivity, intensive efforts are underway to improve plant tolerance to salinity. Hence, an experiment was conducted to assess the impact of the foliar application of salicylic acid (SA; 0.5 mM) on the physiological traits of fenugreek (Trigonellafoenum-graecum L.) plants grown under three salt concentrations (0, 75, and 150 mM NaCl). An increase in salt concentration generated a decrease in the chlorophyll content index (CCI); however, the foliar application of SA boosted the CCI. The malondialdehyde content increased in salt-stressed fenugreek plants, while a reduction in content was observed with SA. Likewise, SA application induced an accumulation of proline, total phenolics, and flavonoids. Moreover, further increases in total free amino acids and shikimic acid were observed with the foliar application of SA, in either control or salt-treated plants. Similar results were obtained for ascorbate peroxidase, peroxidase, polyphenol oxidase, and catalase with SA application. Hence, we concluded that the foliar application of SA ameliorates salinity, and it is a growth regulator that improves the tolerance of fenugreek plants under salt stress. Full article
(This article belongs to the Special Issue The Role of Salicylic Acid in Mitigating Plant Stress and Its Application in Agriculture)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-5
Back to TopTop