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Horticulturae
Special Issues
Host-Pathogen Interaction in Climate Change Scenario
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Host-Pathogen Interaction in Climate Change Scenario

A special issue of Horticulturae (ISSN 2311-7524). This special issue belongs to the section "Plant Pathology and Disease Management (PPDM)".

Deadline for manuscript submissions: closed (20 January 2022) | Viewed by 2493

Special Issue Editor

Dr. Rinu Kooliyottil

E-Mail Website
Guest Editor
Division of Agronomy, North Carolina Department of Agriculture and Consumer Service, Raleigh, NC 27699-1001, USA
Interests: plant-microbe interactions; biological control; molecular nematology; plant health promoting microbes; plant pathology

Special Issue Information

Dear Colleagues,

Significant evidence of climate change-based crop loss is already known and the impact of climate change on global food security has been a major topic of discussion worldwide. For example, changes in weather patterns or drought/flood events have negative impacts on agricultural productivity. Factors related to climate change also affect host–pathogen interaction. The compounding effect of climate-driven physiological changes in both host plant and pathogen species complicates this interaction further. Technological advancements in gene sequencing in recent years have provided a plethora of opportunities to explore the effect of environmental factors in host–pathogen interaction at the genetic level.

We invite research articles, reviews, short notes, and opinion articles related to the effect of climate change on plant pathogen interaction. Topics related to disease susceptibility or resistance, pathogen virulence, and recent evidence of disease emergence are welcome for our current Special Issue on "Host-Pathogen Arm Race in Climate Change Scenario".

Dr. Rinu Kooliyottil
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. 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

  • plant microbe interactions
  • climate change
  • pathogen virulence
  • resistance
  • susceptibility
  • global food security

Published Papers (1 paper)

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Research

20 pages, 3619 KiB  
Article
Response of Tomato-Pseudomonas Pathosystem to Mild Heat Stress
by Loredana Scalschi, Emma Fernández-Crespo, Marcel Pitarch-Marin, Eugenio Llorens, Ana Isabel González-Hernández, Gemma Camañes, Begonya Vicedo and Pilar García-Agustín
Horticulturae 2022, 8(2), 174; https://doi.org/10.3390/horticulturae8020174 - 20 Feb 2022
Cited by 2 | Viewed by 2008
Abstract
Higher plants suffer from mild heat stress when temperatures increase by 5 °C above optimum growth temperatures. This produces changes at the cellular and metabolic levels, allowing plants to adapt to heat conditions. This study investigated an increase of 5 °C above the [...] Read more.
Higher plants suffer from mild heat stress when temperatures increase by 5 °C above optimum growth temperatures. This produces changes at the cellular and metabolic levels, allowing plants to adapt to heat conditions. This study investigated an increase of 5 °C above the optimum growth temperature (26 °C) of tomato plants in the tomato—Pseudomonas syringae pv. tomato pathosystem. A temperature increase above 26 °C affects plant development, the defensive pathways activated against Pseudomonas syringae pv. tomato strain DC3000 (PstDC3000), and the bacterial growth and virulence machinery. The results demonstrated that tomato plants were able to acclimate to mild heat stress, showing no symptoms of damage. Moreover, plants subjected to a 5 °C increase (T31 °C plants) showed higher basal levels of metabolites such as proline and putrescine, which probably act as compatible osmolytes. This demonstrates their importance as key components of thermotolerance. When grown under mild heat stress, plants were less susceptible to PstDC3000 and showed increased accumulation of abscisic acid, jasmonic acid-isoleucine, and spermine. In addition, the temperature increase negatively affected the infectivity of PstDC3000. Inhibition of the genes responsible for quorum sensing establishment and synthesis of flagellin and coronatine was observed in bacteria extracted from T31 °C plants. Analysis of the genes involved in the synthesis of the type III secretion system indicates the important role of this system in bacterial growth under these conditions. As the known resistance mechanisms involved in the defense against PstDC3000 were not activated, the changes in its virulence mechanisms under high temperatures may explain the lower infection observed in the T31 °C plants. Full article
(This article belongs to the Special Issue Host-Pathogen Interaction in Climate Change Scenario)
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