Stress Response, Development, and Quality Regulation in Horticultural Plants

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

Deadline for manuscript submissions: 30 May 2026 | Viewed by 1372

Special Issue Editors

Key Laboratory for Horticultural Crop Genetic Improvement, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
Interests: horticultural crop; plant biotechnology; molecular genetics and genomics; multi-omics analysis; form genotype to phenotype
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College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou, China
Interests: plant secondary metabolism; volatile compounds; terpene biosynthesis in horticultural plant

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Guest Editor
School of Tea Science, Anhui Agricultural University, Hefei, China
Interests: efficient utilization of nutrients and quality control of tea plants
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In recent years, the increasing frequency of extreme weather events and the degradation of agricultural ecosystems have posed formidable challenges to horticultural crop production. On the one hand, abiotic stresses such as drought, high temperatures, low temperatures, salinity, waterlogging, low light, nutrient deficiencies, and heavy metals, as well as biotic stresses caused by pests and diseases, severely impact the growth, development, and sustainable advancement of the horticultural industry. On the other hand, there is a growing public desire for a higher quality of life, which has led to an increasing appreciation of horticulture as a means of enhancing daily living. Particularly, the rising demand for superior-quality horticultural products has spurred research into the regulatory mechanisms underlying the formation of quality traits, including shape, color, texture, flavor, and aroma.

Horticultural plants comprise a diverse family of plants, including fruit trees, vegetables, ornamental plants, flowering plants, tea and beverage plants, aromatic plants, medicinal plants, and more. Focus on these target plants by integrating high-throughput multi-omics technologies and computational biology approaches to identify the key genes involved in stress responses, development, and quality trait formation, which will help researchers provide a scientific foundation or cues for breeding novel, high-quality horticultural varieties. Research articles, reviews, short notes, and opinion articles focused on the application of genetic, physiological, molecular, and multi-omics aspects to various horticultural plants are welcome to our current Special Issue on “Stress Response, Development, and Quality Regulation in Horticultural Plants”.

Dr. Jun Tang
Dr. Guo Wei
Dr. Tianyuan Yang
Guest Editors

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Keywords

  • horticultural plants
  • abiotic and biotic stresses
  • growth and development
  • quality regulation
  • gene expression analysis
  • multi-omics
  • physiological and molecular mechanisms

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Published Papers (3 papers)

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Research

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16 pages, 1349 KB  
Article
Chemical Profiling and Sensory Analysis Reveal Quality Differentiation in Baimudan White Tea Processed from Three Major Fujian Tea Cultivars
by Yucheng Zheng, Yuping Zhang, Yun Zou, Yutao Shi, Jianming Zhang, Huili Deng, Zhanhua Ji, Zhenying Liang and Xinlei Li
Horticulturae 2025, 11(10), 1196; https://doi.org/10.3390/horticulturae11101196 - 3 Oct 2025
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Abstract
White tea quality is primarily determined by its chemical composition, which varies significantly among cultivars. This study aimed to elucidate the chemical basis underlying quality differentiation in Baimudan white tea produced from three major Fujian tea cultivars: “Zhenghe Dabaicha” (ZHDB), “Fuan Dabaicha” (FADB), [...] Read more.
White tea quality is primarily determined by its chemical composition, which varies significantly among cultivars. This study aimed to elucidate the chemical basis underlying quality differentiation in Baimudan white tea produced from three major Fujian tea cultivars: “Zhenghe Dabaicha” (ZHDB), “Fuan Dabaicha” (FADB), and “Fuding Dahaocha” (FDDH). Headspace solid-phase microextraction coupled with gas chromatography–mass spectrometry (HS-SPME-GC-MS), liquid chromatography–mass spectrometry (LC-MS), and quantitative descriptive analysis (QDA) were employed to characterize volatile compounds, amino acids, and saccharides. Odor Activity Values (OAVs) and Taste Activity Values (TAVs) were calculated to identify key contributors to sensory perception. Results showed that theanine, glutamic acid, asparagine, and serine were the primary contributors to umami taste, especially in ZHDB and FADB. Sweetness differences were largely due to sucrose, serine, and asparagine. OAV analysis further identified 22 critical aroma compounds: methyl salicylate, linalool, and β-ionone predominantly imparted floral notes, while β-ocimene, benzaldehyde, and geraniol enhanced sweet and fruity aromas. In contrast, (Z)-3-hexenol, (Z)-3-hexenal, and (E)-2-hexenal contributed grassy and refreshing characteristics, together defining the unique aroma profiles of each cultivar. This study provides an integrated chemical and sensory framework for understanding white tea quality variation, offering a theoretical basis for targeted flavor modulation. Full article
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15 pages, 3004 KB  
Article
Dynamic Carotenoid Profiles and Function Analysis of the RrPSY1 Gene in Rosa rugosa Flowers
by Yue Yu, Yazheng Cao, Yudie Chen, Hammad Hussain, Xieyu Lu, Kaikai Zhu, Yong Xu, Liguo Feng and Guo Wei
Horticulturae 2025, 11(9), 1137; https://doi.org/10.3390/horticulturae11091137 - 18 Sep 2025
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Abstract
Rosa rugosa is an important ornamental and edible species that is valued for its floral colors and essential oils in the cosmetic and pharmaceutical industries. Carotenoids, beyond their health-promoting roles, function as accessory pigments that influence petal coloration, flower quality, and stress responses. [...] Read more.
Rosa rugosa is an important ornamental and edible species that is valued for its floral colors and essential oils in the cosmetic and pharmaceutical industries. Carotenoids, beyond their health-promoting roles, function as accessory pigments that influence petal coloration, flower quality, and stress responses. However, their accumulation patterns and molecular biosynthesis in R. rugosa remain poorly understood. Here, UPLC-APCI-MS/MS analysis across three developmental stages (bud, semi-open, and full bloom) revealed stage-specific carotenoid accumulation, with phytoene and phytofluene markedly increasing at the semi-open stage. In total, 11 carotenoids were identified, comprising four carotenes and seven xanthophylls. Differential accumulation of metabolites (DAMs) analysis indicated shifts in compounds, including (E/Z)-phytoene, phytofluene, and β-carotene across stages. Genetic complementation assays in Escherichia coli and transient overexpression in rose petals confirmed that RrPSY1 functions as a phytoene synthase. qRT-PCR results showed its upregulation under salt treatment, suggesting a role in enhancing stress tolerance through carotenoid-mediated antioxidant protection. Furthermore, sub-cellular localization experiments confirmed plastid targeting of RrPSY1. Together, these findings clarify the role of RrPSY1 in carotenoid biosynthesis and provide a foundation for future studies on metabolic regulation and biosynthesis of carotenoids in R. rugosa. Full article
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Review

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19 pages, 602 KB  
Review
Adaptive Mechanisms and Regulatory Strategies of Plants Under Saline Stress and Prospects for the Development and Utilization of Chinese Herbal Medicines in Saline Land
by Hongjie Long, Cai Shao, Yanmei Cui, Weiyu Cao, Yue Wang, Jiapeng Zhu, Xiaomeng Geng, Hai Sun and Yayu Zhang
Horticulturae 2025, 11(10), 1179; https://doi.org/10.3390/horticulturae11101179 - 2 Oct 2025
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Abstract
Soil salinization has seriously restricted the growth of crops and the sustainable use of land resources. The exploitation and utilization of saline land has become an urgent problem of agricultural development and environmental management. Medicinal plants have “stress effect”, and some adversity stresses [...] Read more.
Soil salinization has seriously restricted the growth of crops and the sustainable use of land resources. The exploitation and utilization of saline land has become an urgent problem of agricultural development and environmental management. Medicinal plants have “stress effect”, and some adversity stresses often become positive regulators of their quality, which provides new ideas for the development and utilization of saline land. Based on it, this review summarizes the adaptive mechanism of plants under saline stress, including the construction of plant phenotypic characteristics, osmotic regulation, ion homeostasis, and hormone regulation. We also outline management strategies for saline land, primarily encompassing physical, chemical, biological, and comprehensive improvements. We further discuss the prospects for the development and utilization of Chinese herbal medicines in saline land based on the resources of salt-tolerant medicinal plants and the effects of saline stress on the quality of Chinese herbal medicines, with a view to providing references for the improvement and utilization of saline land, as well as the solution of the dilemma of medicinal plants competing for land with grains. Full article
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