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Agronomy
Special Issues
Salicylic Acid in Plant Stress Responses
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Salicylic Acid in Plant Stress Responses

A special issue of Agronomy (ISSN 2073-4395).

Deadline for manuscript submissions: closed (1 April 2018)

Special Issue Editor

Dr. Pedro Diaz-Vivancos

E-Mail Website
Guest Editor
CEBAS-CSIC, Department of Plant Breeding, P.O. Box 164, Campus de Espinardo, 30100 Murcia, Spain
Interests: salt-stress response; abiotic and biotic stresses; growth regulator; antioxidant; antioxidative metabilism; environmental stresses; oxidative stress; cell proliferation; plant tissue culture; plant physiology; reactive oxygen species
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The plant hormone salicylic acid (SA) has been traditionally associated to plant defense responses against biotic stimuli. In addition, recent works have reported a role for SA in the response to abiotic stresses. The precise mode of SA action is unclear, although it has been shown to interact in a complex manner with the antioxidative metabolism, modulating cellular redox homeostasis and leading to changes at molecular level. The role of SA in stressed plants seems to depend on different factors, including the plant species, how the SA treatment is applied and the used concentration, the physiological state of the plant, as well as the level of and the exposure time to the stress. Moreover, SA also acts as signaling and regulatory molecule modulating diverse biological processes, such as cell growth and development, seed germination, stomatal aperture, and fruit yield, among others.

Despite the important roles of SA in plants, its metabolism has not been fully characterized yet. The proposed SA synthesis originates from chorismate, the end product of the shikimate pathway, by two distinct pathways: the isochorismate (IC) and the phenylalanine (Phe) ammonia-lyase (PAL) pathways, although this information is limited to Arabidopsis and other herbaceous plants.

This Special Issue will focus on “Salicylic Acid in Plant Stress Responses”. We welcome novel research, reviews and opinion pieces covering all related topics including SA metabolism, physiological roles of SA in plants, and SA in plant responses to environmental cues (including both biotic and abiotic stresses).

Dr. Pedro Diaz-Vivancos
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. Agronomy is an international peer-reviewed open access monthly 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 2600 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

  • abiotic stress
  • biotic stress
  • plant growth and development
  • plant physiology
  • salicylic acid

Published Papers (2 papers)

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Review

16 pages, 1970 KiB  
Review
Relationship of Melatonin and Salicylic Acid in Biotic/Abiotic Plant Stress Responses
by Josefa Hernández-Ruiz and Marino B. Arnao
Agronomy 2018, 8(4), 33; https://doi.org/10.3390/agronomy8040033 - 22 Mar 2018
Cited by 103 | Viewed by 12638
Abstract
Melatonin (N-acetyl-5-methoxytryptamine) was discovered in plants in 1995, while salicylic acid was the name given to the active ingredient of willow in 1838. From a physiological point of view, these two molecules present in plants have never been compared, even though [...] Read more.
Melatonin (N-acetyl-5-methoxytryptamine) was discovered in plants in 1995, while salicylic acid was the name given to the active ingredient of willow in 1838. From a physiological point of view, these two molecules present in plants have never been compared, even though they have a great number of similarities, as we shall see in this work. Both molecules have biosynthesis pathways that share a common precursor and both play a relevant role in the physiology of plants, especially in aspects related to biotic and abiotic stress. They have also been described as biostimulants of photosynthetic processes and productivity enhancers in agricultural crops. We review the coincident aspects of both molecules, and propose an action model, by which the relationship between these molecules and other agents and plant hormones can be studied. Full article
(This article belongs to the Special Issue Salicylic Acid in Plant Stress Responses)
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20 pages, 10780 KiB  
Review
Functional Analogues of Salicylic Acid and Their Use in Crop Protection
by Lydia Faize and Mohamed Faize
Agronomy 2018, 8(1), 5; https://doi.org/10.3390/agronomy8010005 - 09 Jan 2018
Cited by 46 | Viewed by 12666
Abstract
Functional analogues of salicylic acid are able to activate plant defense responses and provide attractive alternatives to conventional biocidal agrochemicals. However, there are many problems that growers must consider during their use in crop protection, including incomplete disease reduction and the fitness cost [...] Read more.
Functional analogues of salicylic acid are able to activate plant defense responses and provide attractive alternatives to conventional biocidal agrochemicals. However, there are many problems that growers must consider during their use in crop protection, including incomplete disease reduction and the fitness cost for plants. High-throughput screening methods of chemical libraries allowed the identification of new compounds that do not affect plant growth, and whose mechanisms of action are based on priming of plant defenses, rather than on their direct activation. Some of these new compounds may also contribute to the discovery of unknown components of the plant immune system. Full article
(This article belongs to the Special Issue Salicylic Acid in Plant Stress Responses)
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