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Horticulturae
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Recent Scientific Developments in Genetic Improvement of Vegetables for Resistance...
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Recent Scientific Developments in Genetic Improvement of Vegetables for Resistance to Biotic and Abiotic Stresses

A special issue of Horticulturae (ISSN 2311-7524). This special issue belongs to the section "Biotic and Abiotic Stress".

Deadline for manuscript submissions: closed (29 February 2024) | Viewed by 6195

Special Issue Editors

Prof. Dr. Feng Wang

E-Mail Website
Guest Editor
College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
Interests: vegetable; abiotic stress; biotic stress; genetic improvement
Special Issues, Collections and Topics in MDPI journals
Dr. Youxin Yang

E-Mail Website
Guest Editor
College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China
Interests: vegetable; biotic stress; abiotic stress; genetic improvement

Special Issue Information

Dear Colleague,

Biotic stress and unfavorable environment conditions, such as excess light, high and low temperatures, drought, salinity, and deprivation of nutrients, adversely affect plant growth and reduce yield. In recent years, understanding of the biotic and abiotic stress signaling pathways has advanced rapidly. Understanding how vegetables adapt to biotic and abiotic stresses is an interesting question in stress biology and genetic improvement. To sustain vegetable production, it is necessary to understand the genetic, molecular, and physiological mechanisms underlying the adaptation of vegetables to such harsh environments.  

The purpose of this Special Issue on “Recent Scientific Developments in Genetic Improvement of Vegetables for Resistance to Biotic and Abiotic Stresses” is to present innovative studies on the molecular and physiological mechanisms underlying plant responses to the abovementioned stress conditions. Innovative articles on the genetic improvement of vegetables and the manipulation of essential genes and pathways to improve the tolerance of vegetables to these stress conditions are welcome in this Special Issue.

Prof. Dr. Feng Wang
Dr. Youxin Yang
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

  • vegetables
  • abiotic stress
  • biotic stress
  • physiological regulation
  • genetic improvement
  • transcription regulation
  • environment regulation

Published Papers (5 papers)

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Research

18 pages, 12422 KiB  
Article
The CDPK Gene Family in Mustard (Brassica juncea L.): Genome-Wide Identification and Expression Analysis under Cold Stress
by Haibo Li, Hao Wu, Weifeng Huang, Jiaxian Liu, Jiaxin Deng, Chuanhong Li, Cui Mao, Yang Zhang, Yukun Wang and Jie Zheng
Horticulturae 2024, 10(1), 20; https://doi.org/10.3390/horticulturae10010020 - 23 Dec 2023
Viewed by 984
Abstract
The CDPK family genes play crucial roles in signal transduction pathways during plant development and stress response. In this study, we comprehensively analyzed the CDPK family genes in mustard (Brassica juncea L.), resulting in the identification of 101 genes (BjuCDPK1– [...] Read more.
The CDPK family genes play crucial roles in signal transduction pathways during plant development and stress response. In this study, we comprehensively analyzed the CDPK family genes in mustard (Brassica juncea L.), resulting in the identification of 101 genes (BjuCDPK1–101) located on chromosomes AA_Chr01 to BB_Chr08. RNA-seq analysis showed that most BjuCDPK genes were predominantly expressed in the root and flower bud, suggesting their organ-specific expression patterns. Furthermore, the expression levels of most BjuCDPK genes were significantly altered by cold stress. The promoter regions of BjuCDPK genes had abundant cis-acting elements related to hormones and stress. The interaction network analysis predicted that BjuCDPK proteins respond to abiotic stress probably via interaction with ABF1, ABF4, and/or DI19. Our findings provide valuable information for further the investigation of the cold stress adaption of mustard via the CDPK signaling pathway. Full article
(This article belongs to the Special Issue Recent Scientific Developments in Genetic Improvement of Vegetables for Resistance to Biotic and Abiotic Stresses)
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17 pages, 8031 KiB  
Article
In Silico Analysis of the MAPK Gene Family in Cabbage and Its Expression during Development and Stress Response
by Min Wang, Jinxiu Chen, Xiaowei Zhu, Xiang Tai and Tianyue Bo
Horticulturae 2023, 9(10), 1119; https://doi.org/10.3390/horticulturae9101119 - 10 Oct 2023
Viewed by 837
Abstract
Cabbage is often affected by an adverse environment and pathogens during its growth, resulting in a decline in yield and quality. Mitogen-activated protein kinases (MAPKs) play crucial roles in the development process, hormones, abiotic and biotic stresses, and cell division. So far, MAPKs [...] Read more.
Cabbage is often affected by an adverse environment and pathogens during its growth, resulting in a decline in yield and quality. Mitogen-activated protein kinases (MAPKs) play crucial roles in the development process, hormones, abiotic and biotic stresses, and cell division. So far, MAPKs have been characterized in various species. However, no systematic analysis of the MAPK family in cabbage has been performed. A total of 24 BoMAPK genes were identified and renamed according to Arabidopsis homologs; they were unevenly distributed on nine chromosomes. According to the conserved domain and phylogenetic relationship, BoMAPKs were divided into four subgroups, of which three belonged to subgroup A, four to subgroup B, three to subgroup C, and fourteen to subgroup D, respectively. There were 13 segmental duplication events in the cabbage genome. The Ka/Ks ratios for duplicated gene pairs of the MAPK family were less than 0.2, indicating that these BoMAPK genes have undergone purification selection in evolution. There were various cis-acting elements associated with stress, hormones, and development found in the promoter regions of most BoMAPK genes. Transcriptome data showed a high expression of BoMAPK3, BoMAPK4.1, and BoMAPK6.1 genes in various tissues. BoMAPK17.2, BoMAPK20.1 and BoMAPK20.2 were significantly induced by Plasmodiophora brassicae, as evidenced in the quantitative PCR (RT-qPCR) analysis, revealing their enormous potential to regulate stress response. RT-qPCR results showed how the transcriptional levels of BoMAPK genes varied substantially under abiotic stress at different time points. These analysis results provide a reference to further explore the function and evolution of BoMAPK genes in cabbage. Full article
(This article belongs to the Special Issue Recent Scientific Developments in Genetic Improvement of Vegetables for Resistance to Biotic and Abiotic Stresses)
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14 pages, 2920 KiB  
Article
Comprehensive Genomic Analysis and Expression Profile of Hsp70 Gene Family Related to Abiotic and Biotic Stress in Cucumber
by Zixian Zhou, Lingdi Xiao, Jindong Zhao, Zhaoyang Hu, Yuelong Zhou, Shiqiang Liu, Hao Wu and Yong Zhou
Horticulturae 2023, 9(9), 1057; https://doi.org/10.3390/horticulturae9091057 - 21 Sep 2023
Viewed by 798
Abstract
Heat shock protein 70 (Hsp70) is a class of HSPs involved in plant growth and development, stress response and regulation. The Hsp70 proteins exist widely in the plant world, but the detail information about Hsp70s is still unclear in cucumber. Based [...] Read more.
Heat shock protein 70 (Hsp70) is a class of HSPs involved in plant growth and development, stress response and regulation. The Hsp70 proteins exist widely in the plant world, but the detail information about Hsp70s is still unclear in cucumber. Based on the available cucumber genome, a total of 12 Hsp70 genes (CsHsp70-1 to CsHsp70-12) were identified in this study, and they were distributed among five out of seven chromosomes. The CsHsp70s were divided into four groups based on a phylogenetic analysis by using protein sequences from cucumber and other plants, and their conserved motifs were relatively conserved. Gene duplication analysis showed that segmental duplication is the main driving force of expansion in cucumber CsHsp70 genes. Promoter analysis of CsHsp70 genes showed that they contained many cis-acting elements involved in hormone and stress responses. Expression analysis by RNA-seq and qRT-PCR indicated that the expression of most CsHsp70 genes was associated with multiple biotic and abiotic stresses in cucumber. This study introduces the characteristics of cucumber CsHsp70 genes and the regulation of their expression levels in various abiotic and biotic stresses, which provided a basis for functional exploration and utilization of CsHsp70 genes in the future. Full article
(This article belongs to the Special Issue Recent Scientific Developments in Genetic Improvement of Vegetables for Resistance to Biotic and Abiotic Stresses)
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16 pages, 4190 KiB  
Article
Integrated Transcriptome and Metabolome Analysis Revealed the Molecular Mechanism of Anthocyanin Synthesis in Purple Leaf Pepper (Capsicum annuum L.) under Different Light Intensities
by Yiyu Shen, Lianzhen Mao, Yao Zhou, Ying Sun, Zhoubin Liu and Chengliang Liang
Horticulturae 2023, 9(7), 814; https://doi.org/10.3390/horticulturae9070814 - 14 Jul 2023
Viewed by 875
Abstract
Light is a crucial environmental component for plant growth, and light intensity plays a crucial function in controlling pigment anabolism in plants. We performed physiological characterisation, transcriptome, and metabolome investigations on purple leaf peppers treated with different light intensities to evaluate the effect [...] Read more.
Light is a crucial environmental component for plant growth, and light intensity plays a crucial function in controlling pigment anabolism in plants. We performed physiological characterisation, transcriptome, and metabolome investigations on purple leaf peppers treated with different light intensities to evaluate the effect on plant leaf colour. The results showed that the leaves of the peppers became significantly purplish under high light, with significantly higher anthocyanin, chlorophyll a, and carotenoid contents. A total of 44,263 genes were quantified using RNA-Seq, with the photoprotein-related genes LRP and LIP maintaining high expression levels under high and medium light. The anthocyanin synthesis pathway was variously enriched among the comparison groups, according to KEGG. The expression of the genes involved in the anthocyanin synthesis pathway, such as CHI, F3H, DFR, and BZ1, was significantly higher under high light. In addition, MYB and bHLH gene families were the most abundant, and MYB1R1, MYB113-like, and bHLH90-like were significantly expressed under high light and highly positively correlated with the above anthocyanin synthesis genes. According to our metabolomic analysis, delphinidin-3-O-rutinoside and delphinidin-3-O-glucoside accumulated in significant concentrations in purple leaves under high light. This study is useful for understanding the process of anthocyanin synthesis and metabolism in pepper leaves that is generated and regulated by varied light intensity. Full article
(This article belongs to the Special Issue Recent Scientific Developments in Genetic Improvement of Vegetables for Resistance to Biotic and Abiotic Stresses)
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15 pages, 3763 KiB  
Article
Alleviating Effects of Linalool Fumigation on Botrytis cinerea Infections in Postharvest Tomato Fruits
by Qing Shen, Haosen Li, Qifang Wang, Jianquan Wang, Jiarui Ge, Xiaoyu Yang, Xiaoyun Wang, Xiuming Li, Yan Zhang, Ruimin Zhang and Qinghua Shi
Horticulturae 2022, 8(11), 1074; https://doi.org/10.3390/horticulturae8111074 - 16 Nov 2022
Cited by 4 | Viewed by 1799
Abstract
Gray mold is a disease that often occurs in postharvest tomato fruits, leading to a significant decline in the fruits’ quality. In production, pesticides are mostly used to control gray mold, which negatively affect both the environment and food safety. The purpose of [...] Read more.
Gray mold is a disease that often occurs in postharvest tomato fruits, leading to a significant decline in the fruits’ quality. In production, pesticides are mostly used to control gray mold, which negatively affect both the environment and food safety. The purpose of this article is to study the effects of linalool fumigation on controlling gray mold in tomato fruits and to further investigate the mechanism of linalool function, so as to provide technical support and a theoretical basis for the application of linalool in the green control of tomato gray mold. The results of the in vitro experiments showed that linalool fumigation had a strong inhibitory effect on the mycelial growth of Botrytis cinerea and that the fumigation of linalool inhibited the expansion of pathogens on tomato fruits. The disease index of tomato fruits in the linalool treatment was always lower than that of the control within 72 h after inoculation with Botrytis cinerea; at the end of experiment, the disease index of the control reached 100.0, which was only 8.0 with the 30 μL/L linalool treatment. Linalool fumigation increased the antioxidant capacity of the tomato fruits under Botrytis cinerea infection through regulating activities of SOD, POD and CAT as well as the ascorbic acid (AsA) content, which could be responsible for the lower malondialdehyde (MDA) accumulation. Linalool fumigation increased the activities of polyphenol oxidase (PPO), and phenylalanine ammonia-lyase (PAL) in tomato fruits, indicating that secondary metabolism was involved in the function of linalool in the regulation of tomato fruit resistance to pathogens. As the main enzymes related to cell structure, polygalacturonase (PG), cellulase (CL) and β-galactosidase (β-GAL) were inhibited by linalool, which could protect cell wall structures from damage, and strengthened the mechanical barrier against pathogen access to fruit flesh. Full article
(This article belongs to the Special Issue Recent Scientific Developments in Genetic Improvement of Vegetables for Resistance to Biotic and Abiotic Stresses)
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