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Agriculture
Special Issues
Physiological Response, Genetic Research and Quality Improvement of Ornamental Crops
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Physiological Response, Genetic Research and Quality Improvement of Ornamental Crops

A special issue of Agriculture (ISSN 2077-0472). This special issue belongs to the section "Crop Genetics, Genomics and Breeding".

Deadline for manuscript submissions: 25 September 2024 | Viewed by 276

Special Issue Editor

Prof. Dr. Daqiu Zhao

E-Mail Website
Guest Editor
College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China
Interests: ornamental plants; the quality of cut flowers; abiotic stress; high-temperature stress

Special Issue Information

Dear Colleagues,

Ornamental crops play an important role in human life. With the rapid development of the economy and the improvement of people's living standards, the demand for ornamental crops is increasing day-by-day. High-end ornamental crops with excellent characteristics in terms of quality, resistance, etc., have broad market prospects. In order to obtain ornamental plants with excellent characteristics, it is first necessary to thoroughly study their regulatory mechanisms; therefore, the study of the physiological response and molecular biology of ornamental crops cannot only provide assistance for clarifying the regulatory mechanisms, but also help to obtain candidate genes that can be used for quality improvement. Based on these, we have decided to launch this Special Issue on “Physiological Response, Genetic Research and Quality Improvement of Ornamental Crops”.

This Special Issue focuses on the ornamental qualities and stress resistance of ornamental crops, including flower color, flower shape, flower fragrance, stem strength, heat, drought, salt, molecular breeding, and so on. It welcomes contributions from researchers working in the field of the physiological and molecular biology of ornamental plants. All types of articles, such as original research and reviews, are welcome.

Prof. Dr. Daqiu Zhao
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. Agriculture 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

  • ornamental plants
  • quality improvement
  • stress
  • physiological response
  • molecular biology

Published Papers (1 paper)

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Research

17 pages, 4666 KiB  
Article
RmMYB44 Confers Resistance to Chilling, Drought, and Salt Stress in Both Rosa multiflora and Tobacco
by Wuhua Zhang, Naiyu Zhang, Qi Qin, Xiaoying Zhang, Jinzhu Zhang, Tao Yang, Yifei Zhang, Jie Dong and Daidi Che
Agriculture 2024, 14(8), 1212; https://doi.org/10.3390/agriculture14081212 (registering DOI) - 24 Jul 2024
Viewed by 129
Abstract
Roses, a popular ornamental crop, often face various abiotic stresses during growth and development, such as cold, drought, and salinity. Rosa multiflora is a commonly used rootstock and exhibits strong resistance to both biotic and abiotic stresses, making it an ideal material for [...] Read more.
Roses, a popular ornamental crop, often face various abiotic stresses during growth and development, such as cold, drought, and salinity. Rosa multiflora is a commonly used rootstock and exhibits strong resistance to both biotic and abiotic stresses, making it an ideal material for studying mechanisms for resistance. Among the largest plant families, MYB transcription factors play a crucial role in plant abiotic stresses. Our previous research has indicated that RmMYB44 could be involved in the low-temperature response of R. multiflora. This study further investigated RmMYB44, revealing that its expression levels were upregulated in response to chilling, drought, and salt stress. The results suggested its potential role as a key transcription factor in plant resistance to abiotic stresses. Additionally, RmMYB44 encoded a nuclear-localized protein without the self-activating function. The overexpression of RmMYB44 in tobacco plants enhanced the resistance to cold, drought, and salt stresses, as evidenced by the improved growth compared to wild-type (WT) plants under conditions of 4 °C, 30% water-holding capacity, and 200 mM of NaCl, respectively. Moreover, in overexpression tobacco plants, the levels of hydrogen peroxide and malondialdehyde (MDA) were significantly reduced; and the activities of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT); as well as the proline content and the expression levels of NtPOD, NtCAT, and NtCBF; were significantly elevated under abiotic stresses. We assumed that the resistance to abiotic stress in plants conferred by RmMYB44 was associated with the regulation of cell membrane integrity. This study aimed to elucidate the role of the RmMYB44 gene in the resistance mechanism of R. multiflora against abiotic stress, thereby providing a candidate gene for the molecular breeding of abiotic stress resistance in roses and related species. Full article
(This article belongs to the Special Issue Physiological Response, Genetic Research and Quality Improvement of Ornamental Crops)
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