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Horticulturae
Special Issues
Molecular Mechanisms Behind the Seed Priming-Triggered Stress Tolerance
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Molecular Mechanisms Behind the Seed Priming-Triggered Stress Tolerance

A special issue of Horticulturae (ISSN 2311-7524). This special issue belongs to the section "Propagation and Seeds".

Deadline for manuscript submissions: closed (30 April 2025) | Viewed by 705

Special Issue Editors

Dr. Gyöngyvér Mara

E-Mail Website1 Website2
Guest Editor
Faculty of Economics, Socio-Human Sciences and Engineering, Sapientia Hungarian University of Transylvania, Miercurea Ciuc, Romania
Interests: plant-microbe interaction
Dr. Emese-Éva Bálint

E-Mail Website
Guest Editor
Faculty of Economics, Socio Human Sciences and Engineering, Department of Bioengineering, Sapientia Hungarian University of Transylvania, 530104 Miercurea Ciuc, Romania
Interests: fluorescence; molecular

Special Issue Information

Dear Colleagues,

Plant growth, survival, and productivity are constantly impacted by various biotic and abiotic stressors. When plants are first exposed to milder stress conditions, they store and memorize molecular information that enables them to effectively and swiftly respond to subsequent stress events. Therefore, seed priming is an excellent method to mimic environmental stress, thereby increasing plant tolerance and adaptation to stress. Studying the stress memory of plants to uncover their molecular mechanisms is of great importance for improving the production quality of ornamental and crop plants.

The purpose of this Special Issue is to present the latest advances in research on seed priming stimuli that trigger plant physiological reactions and molecular mechanisms in response to environmental stresses. Thus, this Special Issue invites authors to submit original research papers dealing with the effect of seed priming in plant stress management, as well as review articles presenting the current knowledge and future perspectives.

Dr. Gyöngyvér Mara
Dr. Emese-Éva Bálint
Guest Editors

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. Horticulturae 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 2200 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

  • seed priming
  • stress memory
  • abiotic stress
  • biotic stress
  • plant physiology
  • molecular biology

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Published Papers (1 paper)

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Research

15 pages, 1872 KiB  
Article
Efficacy of Lippia alba Essential Oil in Alleviating Osmotic and Oxidative Stress in Salt-Affected Bean Plants
by Ilaria Borromeo, Cristiano Giordani and Cinzia Forni
Horticulturae 2025, 11(5), 457; https://doi.org/10.3390/horticulturae11050457 - 24 Apr 2025
Viewed by 260
Abstract
Lippia alba (Mill.) N.E.Br. ex Britton and P. Wilson is a native plant of Colombia, widespread throughout Central and South America, used for thousands of years by pre-Columbian populations, who already knew the many beneficial properties of this species (e.g., antifungal, antibacterial, antiviral [...] Read more.
Lippia alba (Mill.) N.E.Br. ex Britton and P. Wilson is a native plant of Colombia, widespread throughout Central and South America, used for thousands of years by pre-Columbian populations, who already knew the many beneficial properties of this species (e.g., antifungal, antibacterial, antiviral and anti-inflammatory activities). The essential oil of L. alba is rich in phytochemicals with antioxidant activity that could be very useful both for pharmacology and biotechnology application, such as the protection of horticultural crops sensitive to salinity. To enhance salt tolerance, seed-priming treatment with the essential oil of L. alba was performed. We evaluated the effect of this biostimulant on the response to salt stress in a sensitive bean species, Phaseolus acutifolius L. (cv Blue Tepary), native to Mexico, and used by pre-Columbians as well as nowadays. Bean seeds were primed in a solution of 0.5 mL/L of essential oil of L. alba, germinated and after 2 weeks of acclimation, the seedlings were subjected to salt stress, by watering with 40 mM and 80 mM NaCl solutions. Four weeks later, many biochemical parameters were evaluated in order to test the effects of the treatments on plant fitness. Primed seeds showed an increase in salt tolerance during germination, as well as primed plants revealing a higher water uptake, increased chlorophylls, proline content and salt tolerance index. The treatments also improved the Ca2+ concentration in the shoots of stressed primed plants, more quickly activating enzymatic responses to salinity—in particular superoxide dismutase, polyphenol oxidase, catalase, peroxidase and ascorbate peroxidase—compared to unprimed stressed plants. In conclusion, L. alba was found to be a strong elicitor of responses against osmotic and oxidative stress, as induced by salinity, suggesting the possibility of its future utilization in agriculture. Full article
(This article belongs to the Special Issue Molecular Mechanisms Behind the Seed Priming-Triggered Stress Tolerance)
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