Genomics, Molecular, Genetics and Diversity of Vegetable Disease Resistance

A special issue of Horticulturae (ISSN 2311-7524). This special issue belongs to the section "Genetics, Genomics, Breeding, and Biotechnology (G2B2)".

Deadline for manuscript submissions: closed (22 September 2023) | Viewed by 1130

Special Issue Editors

College of Horticulture, Northwest A&F UniversityYangling, Xianyang 712100, China
Interests: resistance breeding; QRL mapping; genome editing
College of Horticulture, Northwest A&F UniversityYangling, Xianyang 712100, China
Interests: plant immunity; resistance breeding; vegetable crop-oomycete interactions; effector biology

Special Issue Information

Dear Colleagues,

The production of vegetable crops is seriously threatened by various plant pathogens causing severe yearly losses around the world. Disease management for vegetable crops is highly dependent on spraying pesticides, a costly and non-environmentally friendly measure. Resistance breeding, on the other hand, helps to control vegetable disease in a cost-effective and eco-friendly way. Nowadays, many new technologies developed to elucidate the mechanisms underlying disease resistance in plants have become available, including reference genomes, omics technics and modern phenotyping. However, these new tools are not widely used in vegetables. This Special Issue aims to collect original research papers, reviews and methods on the following themes:

  • Identification and characterization of resistance or resistance-related genes in vegetable crops;
  • Whole-genome analyses for disease resistance gene/protein structures, evolution;
  • Vegetable crop resistance breeding using biotechnological techniques;
  • Vegetable crop-microbe interactions;
  • The immune signaling of vegetable crops;
  • The hormone response of vegetable crops upon pathogen infection;
  • Identification and characterization of susceptibility genes of vegetable crops;

Dr. Dawei Li
Prof. Dr. Yu Du
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

  • resistance gene
  • vegetable resistance breeding
  • plant genomics
  • immune signaling
  • vegetable crop-microbe interactions and co-evolution

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

18 pages, 5791 KiB  
Article
Exogenous Selenium Enhances Cadmium Stress Tolerance by Improving Physiological Characteristics of Cabbage (Brassica oleracea L. var. capitata) Seedlings
by Kaiyue Jia, Zhipeng Zhan, Bingqian Wang, Wuhong Wang, Wenjing Wei, Dawei Li, Wei Huang and Zhongmin Xu
Horticulturae 2023, 9(9), 1016; https://doi.org/10.3390/horticulturae9091016 - 09 Sep 2023
Viewed by 817
Abstract
In recent years, the levels of cadmium (Cd) in agricultural soils have been increasing. Cd is highly toxic and can enter the human body through the food chain, threatening human health, therefore, reducing the Cd content in vegetables and producing green and non-polluting [...] Read more.
In recent years, the levels of cadmium (Cd) in agricultural soils have been increasing. Cd is highly toxic and can enter the human body through the food chain, threatening human health, therefore, reducing the Cd content in vegetables and producing green and non-polluting food has become a common concern in society. However, the physiological properties of exogenous selenium in alleviating Cd stress in cabbage seedlings have not been thoroughly investigated. In this study, exogenous Se (10 μMol/L) was applied under Cd (25 μMol/L) stress and the physiological characteristics such as biomass, photosynthetic fluorescence parameters, Se and Cd contents, chloroplast ultrastructure, leaf membrane esterification, and antioxidant enzyme activities were determined. The results showed that the exogenous application of Se could effectively alleviate the decrease in growth, photosynthetic pigment, and the gas exchange characteristics of the cabbage seedlings under Cd stress, improve cabbage root vitality, reduce root leaf Cd content, and alleviate the Cd stress-induced damage. Ultrastructural observation showed that the Cd stress caused the disruption to the chloroplasts’ internal structure in the cabbage leaves, while an exogenous Se treatment alleviated the chloroplast damage to some extent, improved the stability of the inner capsule membrane, and alleviated the Cd stress-induced damage to the photosynthetic organs. Cd stress also caused oxidative damage and the excessive accumulation of reactive oxygen species (ROS) in the leaves of cabbage seedlings, as evidenced by the significant accumulation of superoxide anion (O2−), hydrogen peroxide (H2O2), malondialdehyde (MDA), and electrolyte leakage. On the other hand, after the exogenous Se treatment, the Cd stress-induced oxidative damage could be reduced by up-regulating the activities of the antioxidant enzymes, such as superoxide dismutase (SOD), peroxidase (POD), and ascorbate peroxidase (APX). At the same time, Cd stress significantly increased glutathione (GSH) levels, and the exogenous Se treatment further increased the GSH levels, thereby increasing the tolerance of the cabbage to Cd stress. In conclusion, exogenous Se can further improve the Cd tolerance of the cabbage seedlings by protecting the photosynthetic system, eliminating excessive accumulation of reactive oxygen species under Cd stress, alleviating oxidative stress, and reducing Cd levels in plants, among other physiological properties. Full article
Show Figures

Figure 1

Back to TopTop