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Horticulturae
Special Issues
Breeding, Cultivation, and Metabolic Regulation of Medicinal Plants
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Breeding, Cultivation, and Metabolic Regulation of Medicinal Plants

A special issue of Horticulturae (ISSN 2311-7524). This special issue belongs to the section "Medicinals, Herbs, and Specialty Crops".

Deadline for manuscript submissions: 27 June 2024 | Viewed by 5386

Special Issue Editors

Prof. Dr. Mengfei Li

E-Mail Website
Guest Editor
State Key Laboratory of Aridland Crop Science, College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
Interests: variety breeding; ecological adaptability; metabolic regulation; multi-omics of medicinal plants
Prof. Dr. Jianhe Wei

E-Mail Website
Guest Editor
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
Interests: cultivation, molecular breeding, and regulation of secondary metabolites of medicinal plants
Dr. Xiaofang Wang

E-Mail Website
Guest Editor
College of Resources and Environmental Sciences, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China
Interests: soil-borne disease; ecological regulation; phage; rhizosphere micro-ecology
Dr. Ma Yu

E-Mail Website
Guest Editor
School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
Interests: breeding and cultivation; biosynthesis and regulation of triterpene saponins; multi-omics of medicinal plants

Special Issue Information

Dear Colleagues,

Today, over 50,000 medicinal plants (syn. medicinal herbs) are widely used to fight diseases, relieve pain, dispell mosquitoes and other insects, etc., which largely rely on bioactive metabolites such as alkaloids, flavonoids, phenylpropanoids, etc. With increasing commercial demand worldwide, high-quality medicinal plants must urgently be produced through the selective breeding of good varietites, the optimization of cultivation modes (e.g., eco-planting, wild tending, and bionic wild planting), metabolic regulation via environmental factors (e.g., temperatures, light, and nutrition), as well as the prevention and control of diseases and pests. The aim of this Special Issue is to collect original research and review articles that address recent advancements in the breeding, cultivation, and metabolic regulation of medicinal plants. Cell and tissue culture, rapid propagation, and water planting will also be considered.

Prof. Dr. Mengfei Li
Prof. Dr. Jianhe Wei
Dr. Xiaofang Wang
Dr. Ma Yu
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

  • medicinal plants
  • variety breeding
  • cultivation mode
  • metabolic regulation
  • multi-omics

Published Papers (5 papers)

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Research

11 pages, 1442 KiB  
Article
Matabolomic Changes Induced by 6-Benzylaminopurine in Polygonatum cyrtonema
by Xincheng Liu, Huidong Yang, Bin Guo and Zhongdong Hu
Horticulturae 2024, 10(4), 327; https://doi.org/10.3390/horticulturae10040327 - 27 Mar 2024
Viewed by 705
Abstract
Polygonatum cyrtonema Hua (family Asparagaceae) is an endemic plant in China that is valuable for its edible and medicinal uses. Plant growth regulators (PGRs) are natural or synthetic compounds that can regulate plant development and metabolism effectively. To explore potential applications of PGRs [...] Read more.
Polygonatum cyrtonema Hua (family Asparagaceae) is an endemic plant in China that is valuable for its edible and medicinal uses. Plant growth regulators (PGRs) are natural or synthetic compounds that can regulate plant development and metabolism effectively. To explore potential applications of PGRs for improving the yield and bioactivity of this plant, four PGRs, including gibberellic acid (GA3), 6-benzylaminopurine (6-BA), naphthaleneacetic acid (NAA) and 24-epibrassinolide (EBL), were used in this study and sprayed on the growing seedlings of P. cyrtonema. All of these PGRs did not significantly affect the growth rate of P. cyrtonema, but they had varying effects on the polysaccharide and saponin content in the rhizome. NAA and 6-BA positively affected the polysaccharide content, while most PGR treatments negatively affected the saponin content. Widely targeted metabolomic analysis based on UPLC-MS/MS was conducted and revealed 101 differential metabolites in response to 6-BA, most of which were flavonoids, steroids and lipids. Most of the significantly changed flavonoids decreased under the 6-BA treatment. The study provides insights into the potential use of PGRs for improving the quality of P. cyrtonema, particularly in regulating the content of bioactive compounds. Full article
(This article belongs to the Special Issue Breeding, Cultivation, and Metabolic Regulation of Medicinal Plants)
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15 pages, 3870 KiB  
Article
Effect of UV Stress on the Antioxidant Capacity, Photosynthetic Activity, Flavonoid and Steviol Glycoside Accumulation of Stevia rebaudiana Bertoni
by Natalia A. Semenova, Alina S. Ivanitskikh, Nadezhda I. Uyutova, Alexander A. Smirnov, Yuri A. Proshkin, Dmitry A. Burynin, Sergey A. Kachan, Alexander V. Sokolov, Alexey S. Dorokhov and Narek O. Chilingaryan
Horticulturae 2024, 10(3), 210; https://doi.org/10.3390/horticulturae10030210 - 23 Feb 2024
Viewed by 998
Abstract
Lighting conditions are an important controller of plant growth and development, and they affect secondary metabolite synthesis. In this research, we explored the effect of additional UV irradiation of various ranges in addition to the main one at PPFD 160 µmol m−2 [...] Read more.
Lighting conditions are an important controller of plant growth and development, and they affect secondary metabolite synthesis. In this research, we explored the effect of additional UV irradiation of various ranges in addition to the main one at PPFD 160 µmol m−2 s−1 on the accumulation of some secondary metabolites of stevia (Stevia rebaudiana Bertoni). The fresh weight of leaves was slightly higher under additional UV-A and UV-B irradiation compared with the control variant, and the leaf surface area was significantly larger, respectively, by 23.3 and 20.7% than in the control variant, while the rate of photosynthesis did not decrease. Plants under additional UV-B and UV-C irradiation were under the greatest light stress, as evidenced by a decrease in antioxidant capacity by an average of 30% compared to the control and UV-A. The total flavonoid content was significantly higher (by 74%) under UV-B irradiation. The highest concentration of steviol glycoside was observed during budding and flowering under UV-B and UV-C irradiation (by 13.2 and 11.3%, respectively). Analysis of hyperspectral images, chlorophyll fluorescence, and vegetation indices showed light stress increasing under UV-C irradiation, which caused an increase in the relative chlorophyll content, scorches, leaf morphology changes, a CO2 absorption rate decrease, and plant growth inhibition. UV-B irradiation can be used as an optimal type of irradiation based on a set of indicators. Full article
(This article belongs to the Special Issue Breeding, Cultivation, and Metabolic Regulation of Medicinal Plants)
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17 pages, 14431 KiB  
Article
Botanical Biometrics: Exploring Morphological, Palynological, and DNA Barcoding Variations in White Kwao Krua (Pueraria candollei Grah. ex Benth. and P. mirifica Airy Shaw & Suvat.)
by Wannaree Charoensup, Aekkhaluck Intharuksa, Suthira Yanaso, Suthiwat Khamnuan, Sunee Chansakaow, Panee Sirisa-ard, Pensak Jantrawut, Charan Ditchaiwong and Kesorn Chaemcheun
Horticulturae 2024, 10(2), 162; https://doi.org/10.3390/horticulturae10020162 - 9 Feb 2024
Viewed by 1015
Abstract
White Kwao Krua, a crucial Thai medicinal plant, contains various phytoestrogen substances used to alleviate menopausal symptoms in estrogen-deficient women. It originates from two species, namely Pueraria candollei Wall. ex Benth. and P. mirifica Airy Shaw & Suvat. However, there exists morphological variation, [...] Read more.
White Kwao Krua, a crucial Thai medicinal plant, contains various phytoestrogen substances used to alleviate menopausal symptoms in estrogen-deficient women. It originates from two species, namely Pueraria candollei Wall. ex Benth. and P. mirifica Airy Shaw & Suvat. However, there exists morphological variation, and the taxonomic status between both species is ambiguous, making discrimination challenging. In this study, we aim to clarify and differentiate the morphological characteristics, palynology, and DNA barcoding of both species. The morphological results showed the stipule size is a phenotypic marker for the differentiation of both species during the vegetative stage. The palynological results, however, exhibited similarity. Through an examination of nucleotide sequences and neighbor-joining tree analysis, it was determined that the DNA barcoding of the matK region has the capability to distinguish between P. candollei and P. mirifica at nucleotide position 702. Specifically, P. candollei manifested a G base, contrasting with the C base observed in P. mirifica. This study concludes that stipule size and the matK gene in DNA barcoding serve as a distinctive characteristic for distinguishing between P. candollei and P. mirifica. These methodologies prove valuable for ensuring the accurate identification of white Kwao Krua for horticulturists. Full article
(This article belongs to the Special Issue Breeding, Cultivation, and Metabolic Regulation of Medicinal Plants)
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16 pages, 3959 KiB  
Article
Developing EST-SSR Markers for Identifying and Evaluating Asparagus Germplasm Resources Based on Transcriptome Sequences
by Dan Liu, Feili Yan, Changmei Liu, Aimeng Chen, Jiahui Wu, Ma Yu and Xiangyang Lyu
Horticulturae 2024, 10(2), 121; https://doi.org/10.3390/horticulturae10020121 - 26 Jan 2024
Viewed by 815
Abstract
Radix asparagi is the dried root tuber of the Liliaceae plant Asparagus cochinchinensis (Lour.) Merr., which is a major Chinese medicinal herb with high medicinal and edible value in China. The planting area of A. cochinchinensis is extensive, and there is blind introduction [...] Read more.
Radix asparagi is the dried root tuber of the Liliaceae plant Asparagus cochinchinensis (Lour.) Merr., which is a major Chinese medicinal herb with high medicinal and edible value in China. The planting area of A. cochinchinensis is extensive, and there is blind introduction in various regions, leading to confusion the origin of Radix asparagi and impure germplasm. This study conducted morphological and karyotype analyses on cultivated Asparagus resources from seven main production areas in China and developed SSR molecular markers suitable for the identification of Asparagus germplasm resources based on the transcriptome sequencing results. The morphological results indicate that in addition to A. cochinchinensis (Lour.) Merr., recorded in the Pharmacopoeia of the People’s Republic of China, there are also A. taliensis Wang et Tang and A. lycopodineus (Baker) Wang et Tang cultivated in China. All the tested Asparagus resources were diploid and had 20 chromosomes. A total of 8841 single genes containing SSR loci were identified using transcriptome sequencing of Neijiang Asparagus, including 761 SSR loci with trinucleotide repeat units. One hundred pairs of SSR primers were randomly designed from the trinucleotide repeat loci for PCR and polymorphism verification, and ten pairs were selected for identification of Asparagus germplasm resources. The genetic diversity results of ten pairs of primers in seven Asparagus-producing regions were consistent with the morphological identification. This study provides technical support for the comprehensive evaluation and utilization of Asparagus germplasm resources. Full article
(This article belongs to the Special Issue Breeding, Cultivation, and Metabolic Regulation of Medicinal Plants)
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11 pages, 11369 KiB  
Article
Floral Biology of Aquilaria sinensis (Lour.) Spreng
by Bin Wang, Guangyao Ma, Suxian Lin, Xin He, Bo Chen, Haoling Li, Liangming Huang, Yun Yang and Jianhe Wei
Horticulturae 2024, 10(1), 109; https://doi.org/10.3390/horticulturae10010109 - 22 Jan 2024
Viewed by 992
Abstract
Aquilaria sinensis (Lour.) Spreng is a known medicinal plant producing agarwood. To date, studies on the floral biology of A. sinensis have been limited. In this study, the floral micro- and ultra-structures, pollen viability, stigma receptivity, and artificial pollination of A. sinensis were [...] Read more.
Aquilaria sinensis (Lour.) Spreng is a known medicinal plant producing agarwood. To date, studies on the floral biology of A. sinensis have been limited. In this study, the floral micro- and ultra-structures, pollen viability, stigma receptivity, and artificial pollination of A. sinensis were investigated. The results show that the flower’s development can be divided into five stages, including the flower bud differentiation stage (2–7 d), the flower bud stage (7–13 d), the flowering stage (14 d), the pollination stage (14–15 d), and the fruiting stage (15–25 d). The floral organs mainly include: 4–6 split calyces, 10 petals, 10 stamens, and 1 pistil. The anther is oblong, with four pollen sacs the pollen is round, with maximum viability 6 h after flowering; and stigma receptivity is at its best 6 h before flowering. Artificial pollination is successful in the field. These findings will provide useful information for producing and breeding A. sinensis. Full article
(This article belongs to the Special Issue Breeding, Cultivation, and Metabolic Regulation of Medicinal Plants)
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