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Plant Physiology: From Omic Analysis Toward Physiological Mechanism Research: 2nd...
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Plant Physiology: From Omic Analysis Toward Physiological Mechanism Research: 2nd Edition

A special issue of Life (ISSN 2075-1729). This special issue belongs to the section "Plant Science".

Deadline for manuscript submissions: 31 December 2025 | Viewed by 6173

Special Issue Editors

Dr. Sen Meng

E-Mail
Guest Editor
State Key Laboratory of Tree Genetics and Breeding, Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, China
Interests: secondary metabolism; multi-omics; nitrogen metabolism; molecular biology; drought resistance
Special Issues, Collections and Topics in MDPI journals
Dr. Fang He

E-Mail Website
Guest Editor
College of Forestry, Sichuan Agricultural University, Ya'an, China
Interests: plant stress; adversity biology of trees

Special Issue Information

Dear Colleagues,

This second volume of this Special Issue follows on from the success of the first, and we invite you to publish your research in this edition of “Plant Physiology: From Omic Analysis toward Physiological Mechanism Research” (https://www.mdpi.com/journal/life/special_issues/Omic_Plant_Physiology).

Plant physiology is influenced by a combination of internal and external factors that have led to remarkable and diverse functions. Recent progress in understanding the proximate basis of plant physiology has revealed a myriad of underlying mechanisms, ranging from genomics and epigenomics to transcriptomics, proteomics, and metabolomics. This Special Issue calls for review or research articles, short letters, and reports that provide novel insights into physiological mechanism research on plants. The Special Issue will be centered on current topics, including molecular and physiological mechanisms of character improvement, responses to biotic and abiotic stresses, hormonal and environmental signaling, and postharvest mechanisms. We welcome research using cutting-edge technologies such as genomics, ATAC-seq, and genome editing. We encourage the publication of research papers reporting significant innovative technologies and creative ideas related to plant physiology. In addition, we will invite experts in plant physiology to write up-to-date review articles to highlight recent advances and future perspectives.

Dr. Sen Meng
Dr. Fang He
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 250 words) can be sent to the Editorial Office for assessment.

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. Life 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

  • plant physiology
  • transcriptome
  • proteomics
  • gene regulatory network
  • bioinformation
  • omics
  • molecular mechanisms

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (3 papers)

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Research

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23 pages, 7690 KB  
Article
Flavonoid Composition and Bioactivities of Nymphaea ‘Blue Bird’: Analysis, Purification, and Evaluation
by Mengjun Zhou, Enbo Wang, Xin Li, Xia Zhao, Jianan Xu, Wentao Wu and Ying Zhao
Life 2025, 15(12), 1895; https://doi.org/10.3390/life15121895 - 11 Dec 2025
Viewed by 168
Abstract
Nymphaea ‘Blue Bird’, a tropical water lily prized for its ornamental appeal, has been less explored as a source of bioactive flavonoids. This study developed an efficient extraction and purification protocol for flavonoids from this plant and compared their distribution and bioactivities across [...] Read more.
Nymphaea ‘Blue Bird’, a tropical water lily prized for its ornamental appeal, has been less explored as a source of bioactive flavonoids. This study developed an efficient extraction and purification protocol for flavonoids from this plant and compared their distribution and bioactivities across different tissues. Supercritical CO2 fluid extraction (SFE) proved optimal, yielding 2.56% under conditions of 24.3 MPa, 39 °C, 91 min, and a CO2 flow rate of 16 L/min. Subsequent purification with HPD500 macroporous resin enhanced flavonoid purity from 3.05% to 11.46%. Among the tissues analyzed, petals contained the highest levels of total flavonoids (6.43 mg/g) and total phenolics (45.71 mg/g), and exhibited the most potent antioxidant (as shown by the lowest EC50 values for ABTS+ and DPPH scavenging) and broad-spectrum antibacterial activities (indicated by the lowest MIC and MBC against Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, and Candida albicans). Antibacterial efficacy was generally superior against Gram-positive bacteria. Widely targeted metabolomics identified 560 metabolites, predominantly flavonols and flavonoids. Principal component and cluster analyses revealed tissue-specific metabolite profiles. KEGG enrichment analysis underscored the significance of the flavonoid biosynthetic pathway, and key differential metabolites—such as luteolin, myricetin, taxifolin, and quercetin—were strongly correlated with the observed bioactivities. These results highlight N. ‘Blue Bird’ petals as a promising source of natural antioxidants and antimicrobials, providing a scientific basis for their future functional applications. Full article
(This article belongs to the Special Issue Plant Physiology: From Omic Analysis Toward Physiological Mechanism Research: 2nd Edition)
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13 pages, 1107 KB  
Article
Physiological Response of Citrus reticulata Blanco var. Gonggan Seedlings to High-Temperature Stress
by Shaoping Wu, Jinyan Liao, Chunxing Ye, Shanyi Chen, Yingshan Wang, Xiaochun Zhang, Junwen Huang and Cong Chen
Life 2025, 15(5), 806; https://doi.org/10.3390/life15050806 - 19 May 2025
Cited by 1 | Viewed by 920
Abstract
The physiological and biochemical responses of Citrus reticulata Blanco var. Gonggan (Gonggan) to high-temperature stress were explored in the present study, offering valuable insights into the growth of this plant in elevated temperature scenarios. Plants were exposed to daytime temperatures of 22 °C, 40 [...] Read more.
The physiological and biochemical responses of Citrus reticulata Blanco var. Gonggan (Gonggan) to high-temperature stress were explored in the present study, offering valuable insights into the growth of this plant in elevated temperature scenarios. Plants were exposed to daytime temperatures of 22 °C, 40 °C, and 45 °C, with corresponding nighttime temperatures of 17 °C, 35 °C, and 40 °C, respectively. Each treatment was administered for 12 h, with a daytime light intensity of 14,400 lux. Key parameters such as the chlorophyll content, peroxidase activity, malondialdehyde content, cytoplasmic membrane permeability, and photosynthetic metrics were assessed. The results showed that the content of malondialdehyde decreased with the increase in temperature, with the highest content at 22 °C. After high-temperature treatment at 40 °C and 45 °C, there was a significant difference (p < 0.05) compared with the Gonggan plants treated at 22 °C. Peroxidase activity exhibited an increasing trend as the temperature increased, and there was a significant difference (p < 0.05) between the peroxidase activity at 22 °C and 45 °C. Similar trends are displayed for high-temperature stress, stomatal conductance, transpiration rate, and intercellular CO2, which initially decreased and then significantly increased. The net photosynthetic rate (Pn) showed a trend of first increasing and then decreasing. When plants were subjected to high-temperature stress at 40 °C, the net photosynthetic rate showed a significant increase compared to the control group at 22 °C, but in a 45 °C stress environment, the Pn showed a decreasing trend. In the experimental group, relative conductivity decreased with the increase in temperature. Meanwhile, Gonggan plants exhibited moderate heat tolerance to short-term or moderate high-temperature stress, primarily through antioxidant and repair mechanisms. However, their heat tolerance was limited under prolonged or extremely high-temperature conditions, characterized by significant membrane damage and photosynthetic inhibition. Overall, Gonggan plants demonstrate moderate heat tolerance, making them suitable for intermittent high-temperature environments rather than prolonged extreme heat conditions. These findings provide a foundation for understanding the adaptive strategies of Gonggan plants and their cultivation in high-temperature settings. Full article
(This article belongs to the Special Issue Plant Physiology: From Omic Analysis Toward Physiological Mechanism Research: 2nd Edition)
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Review

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12 pages, 564 KB  
Review
Advances in the Study of Heartwood Formation in Trees
by Shuqi Yang, Fangcuo Qin, Shengkun Wang, Xiang Li, Yunqing Zhou and Sen Meng
Life 2025, 15(1), 93; https://doi.org/10.3390/life15010093 - 14 Jan 2025
Cited by 5 | Viewed by 4368
Abstract
Heartwood, serving as the central constituent of the xylem, plays a crucial role in the growth, development, and resilience of trees. The process of heartwood formation constitutes a complex biological phenomenon influenced by various factors. A thorough examination of the mechanisms underpinning heartwood [...] Read more.
Heartwood, serving as the central constituent of the xylem, plays a crucial role in the growth, development, and resilience of trees. The process of heartwood formation constitutes a complex biological phenomenon influenced by various factors. A thorough examination of the mechanisms underpinning heartwood formation not only enhances our understanding of the growth and developmental paradigms regulating trees but also provides essential theoretical support and practical insights for the timber industry, forestry management, and ecological conservation. This paper offers an overview of the foundational processes involved in heartwood formation in plants. Furthermore, it presents a comprehensive review of the latest research advancements in this domain, covering five key aspects: metabolism, hormonal regulation, transcriptional regulation, cell biology, and environmental influences. This review serves as a valuable basis for future research endeavors in related academic fields. Full article
(This article belongs to the Special Issue Plant Physiology: From Omic Analysis Toward Physiological Mechanism Research: 2nd Edition)
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