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Agronomy
Special Issues
Secondary Metabolism in Tea Plants
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Secondary Metabolism in Tea Plants

A special issue of Agronomy (ISSN 2073-4395).

Deadline for manuscript submissions: closed (28 February 2023) | Viewed by 2467

Special Issue Editors

Prof. Dr. Wei-Wei Deng

E-Mail Website
Guest Editor
State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei, China
Interests: plant metabolomics; plant physiology; tea plants; tea secondary metabolism
Dr. Tianyuan Yang

E-Mail Website
Guest Editor
State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, China
Interests: plant nutrition physiology; plant nutrition molecular biology; high-efficiency nutrient utilization; food quality control; tea plants; rice
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Secondary metabolism is very important throughout lives of tea plants. It includes the interaction of tea plants with the surrounding environment (insects, plants, microbes, etc.); the quality and quantity of the tea leaves, with the influence of the aroma, taste, flavor, color; the propagation and stress resistance; and the healthy functions of related tea secondary metabolites. This Special Issue welcomes the submission of comprehensive studies of various aspects of tea secondary metabolism, such as the physiology, genetics, biochemistry, biotechnology, breeding, cultivation, quality, and utilization of tea plants. In the context of this Special Issue, studies on detecting the characteristics of tea metabolites, generated in processing and storage, are welcomed. With Special Issue will broaden our understanding of tea secondary metabolism, and will deepen our knowledge in the field of tea science.

Prof. Dr. Wei-Wei Deng
Dr. Tianyuan 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. Agronomy 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

  • physiology
  • genetics
  • biochemistry
  • biotechnology
  • breeding
  • cultivation
  • processing and storage
  • quality
  • detection
  • utilization

Published Papers (2 papers)

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Research

17 pages, 13181 KiB  
Article
Identification and Functional Analysis of PR Genes in Leaves from Variegated Tea Plant (Camellia sinensis)
by Zuguo Xi, Huiyan Jia, Yifan Li, Jinqing Ma, Mengqian Lu, Zhihui Wang, Dexu Kong and Wei-Wei Deng
Agronomy 2024, 14(1), 156; https://doi.org/10.3390/agronomy14010156 - 10 Jan 2024
Viewed by 726
Abstract
Tea is a healthy beverage made from the leaves of the tea plant [Camellia sinensis (L.) O. Kuntze]. The tea plant is a perennial evergreen plant that is widely distributed in tropical and subtropical regions. PR proteins (pathogenesis-related proteins, PRs) are defense-related [...] Read more.
Tea is a healthy beverage made from the leaves of the tea plant [Camellia sinensis (L.) O. Kuntze]. The tea plant is a perennial evergreen plant that is widely distributed in tropical and subtropical regions. PR proteins (pathogenesis-related proteins, PRs) are defense-related proteins induced under pathogenesis-related conditions. Currently, there are a few studies on PRs in plants. Tea leaf color mutants have been of wide interest to scientists as special materials. A tea plant displaying variegated spontaneous albinism found in a local tea plantation in Huangshan City, Anhui Province, China, was used as the material sample in this study. An analysis of preexisting transcriptomic and proteomic data revealed the significant upregulation of three classes of PRs. In order to investigate the correlation between PRs and variegated tea plants, a series of studies were conducted on PR genes. The results revealed the identification of 17 CsPR1, 3 CsPR4 and 31 CsPR5 genes in tea plants using bioinformatics methods, and their structures and promoter sequences. The expression of three PR1, two PR4 and one PR5 genes was determined to be induced in stress treatment experiments involving mechanical damage, insect bites, low temperature treatment, and fungal infections. Additionally, the ribonuclease activity of CsPR4 was successfully verified. This is the first study to report the ribonuclease activity of CsPR4 in tea plants. The results can serve as a reference for future studies on PRs in tea plants, offering new insights into information on albinism in tea plants. Full article
(This article belongs to the Special Issue Secondary Metabolism in Tea Plants)
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18 pages, 11009 KiB  
Article
Tea Plantation Intercropping Legume Improves Soil Ecosystem Multifunctionality and Tea Quality by Regulating Rare Bacterial Taxa
by Ting Wang, Yu Duan, Xiaogang Lei, Yu Cao, Lefeng Liu, Xiaowen Shang, Menghe Wang, Chengjia Lv, Yuanchun Ma, Wanping Fang and Xujun Zhu
Agronomy 2023, 13(4), 1110; https://doi.org/10.3390/agronomy13041110 - 13 Apr 2023
Cited by 5 | Viewed by 1339
Abstract
Microorganisms play essential roles in soil-ecosystem multifunctionality. However, the contribution of their community assembly processes, composition, diversity, and keystone species to ecosystem multifunctionality is unclear, especially in tea-plantation ecosystems. In order to assess the effects of various intercropping patterns (tea-plant monoculture and tea [...] Read more.
Microorganisms play essential roles in soil-ecosystem multifunctionality. However, the contribution of their community assembly processes, composition, diversity, and keystone species to ecosystem multifunctionality is unclear, especially in tea-plantation ecosystems. In order to assess the effects of various intercropping patterns (tea-plant monoculture and tea plants, respectively, intercropped with soybean, soybean—milk vetch, soybean—red clover, and soybean—smooth vetch) on soil rare and abundant taxa, a field experiment was carried out. We found that tea plantation intercropping with legumes improved the soil-ecosystem multifunctionality by altering the soil environment, and ultimately benefited nutrient absorption and quality improvement of tea leaves. Whether it was in bacteria or fungi, rare taxa had a higher proportion of deterministic processes in community assembly than abundant taxa. Additionally, intercropping practices changed the soil environment, and rare bacterial taxa were assembled and shifted from variable selection to homogeneous dispersal. Intercropping practices significantly changed the bacterial and fungal communities’ composition, and rare taxa had higher α-diversity than abundant taxa. Increasing legume species in intercropping practice enhanced community dissimilarity to the tea monoculture by affecting soil pH, ammonium nitrogen, and nitrate nitrogen. Rare bacterial and fungal β-diversity exhibited stronger positive relationships with ecosystem multifunctionality (both average and multi-threshold approaches) compared to the corresponding abundant taxa. Furthermore, ecosystem multifunctionality under different intercropping practices was closely related to the keystone rare operational taxonomic units, especially rare bacterial species of Chloroflexi. Our results emphasize the disparate feedbacks of rare and abundant taxa to diverse intercropping practices, as well as the important connection between rare bacterial taxa and ecosystem multifunctionality. Full article
(This article belongs to the Special Issue Secondary Metabolism in Tea Plants)
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