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Metabolites
Special Issues
Metabolic Responses of Plants to Abiotic Stress
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Special Issue "Metabolic Responses of Plants to Abiotic Stress"

A special issue of Metabolites (ISSN 2218-1989). This special issue belongs to the section "Plant Metabolism".

Deadline for manuscript submissions: 31 January 2024 | Viewed by 2958

Special Issue Editors

Prof. Dr. Baoguo Du

E-Mail Website
Guest Editor
1. College of Life Science and Biotechnology, Mianyang Normal University, Mianyang 621000, China
2. Faculty of Environment and Natural Resources, University of Freiburg, 79110 Freiburg, Germany
Interests: tree physiology; plant stress physiology; plant metabolomics; plant nitrogen metabolism; drought stress
Special Issues, Collections and Topics in MDPI journals
Dr. Youjun Zhang

E-Mail Website
Guest Editor
Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam, Germany
Interests: metabolon; GC-MS; plant TCA cycle; plant mitochondrial metabolic engineering; plant synthetic biology; plant protein-protein interaction

Special Issue Information

Dear Colleagues,

Under the projected trajectory of climate change, plants are facing various abiotic stresses, e.g., drought, heat, flooding, UV and ozone pollution, and nutrient deficiency. Plants have evolved a diverse array of highly sophisticated mechanisms to respond to a wide range of environmental changes, including the biosynthesis, transport, and storage of primary and secondary metabolites, from the cell to the organ and to the whole plant level. Although the metabolic stress response has long been a hot topic in plant science, attracting much interest, it is still far from being elucidated.

The aim of this Special Issue is to attract review and original research papers on all aspects of plant stress biology, including on stomatal control, ROS, and antioxidants, with regard to primary and secondary metabolism under various climatic conditions. Particularly, manuscripts dedicated to exploring the complicated metabolic regulation system of plants with the means of omics are strongly encouraged. Manuscripts aiming to elucidate a certain class of compounds, for instance, nonstructural carbohydrates, amino acids, phosphorus, lignin, etc., in response to abiotic stress are also highly welcome. Furthermore, this Special Issue is not limited to plant stress biology, as research articles dealing with epigenetic regulation and long-term memory effects of abiotic stress will absolutely be considered.

Prof. Dr. Baoguo Du
Dr. Youjun Zhang
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. Metabolites 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 2700 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

  • climate change
  • abiotic stress
  • carbohydrates
  • nitrogen metabolism
  • metabolomics
  • ROS and antioxidants
  • memory effects
  • secondary metabolites
  • epigenetic regulations

Published Papers (3 papers)

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Research

15 pages, 1478 KiB  
Article
Transcriptomic Analysis Reveals the Response Mechanisms of Bell Pepper (Capsicum annuum) to Phosphorus Deficiency
by
Daizha Salazar-Gutiérrez
,
Abraham Cruz-Mendívil
,
Claudia Villicaña
,
José Basilio Heredia
,
Luis Alberto Lightbourn-Rojas
and
Josefina León-Félix
Metabolites 2023, 13(10), 1078; https://doi.org/10.3390/metabo13101078 - 13 Oct 2023
Viewed by 688
Abstract
Phosphorus (P) is an important nutritional element needed by plants. Roots obtain P as inorganic phosphate (Pi), mostly in H2PO−4 form. It is vital for plants to have a sufficient supply of Pi since it participates in important processes [...] Read more.
Phosphorus (P) is an important nutritional element needed by plants. Roots obtain P as inorganic phosphate (Pi), mostly in H2PO−4 form. It is vital for plants to have a sufficient supply of Pi since it participates in important processes like photosynthesis, energy transfer, and protein activation, among others. The physicochemical properties and the organic material usually make Pi bioavailability in soil low, causing crops and undomesticated plants to experience variations in accessibility or even a persistent phosphate limitation. In this study, transcriptome data from pepper roots under low-Pi stress was analyzed in order to identify Pi starvation-responsive genes and their relationship with metabolic pathways and functions. Transcriptome data were obtained from pepper roots with Pi deficiency by RNASeq and analyzed with bioinformatic tools. A total of 97 differentially expressed genes (DEGs) were identified; Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment revealed that metabolic pathways, such as porphyrin and chlorophyll metabolism, were down-regulated, and galactose and fatty acid metabolism were up-regulated. The results indicate that bell pepper follows diverse processes related to low Pi tolerance regulation, such as the remobilization of internal Pi, alternative metabolic pathways to generate energy, and regulators of root development. Full article
(This article belongs to the Special Issue Metabolic Responses of Plants to Abiotic Stress)
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14 pages, 3352 KiB  
Article
Influence of High-Temperature and Intense Light on the Enzymatic Antioxidant System in Ginger (Zingiber officinale Roscoe) Plantlets
by
Min Gong
,
Dongzhu Jiang
,
Ran Liu
,
Shuming Tian
,
Haitao Xing
,
Zhiduan Chen
,
Rujie Shi
and
Hong-Lei Li
Metabolites 2023, 13(9), 992; https://doi.org/10.3390/metabo13090992 - 04 Sep 2023
Cited by 1 | Viewed by 551
Abstract
Environmental stressors such as high temperature and intense light have been shown to have negative effects on plant growth and productivity. To survive in such conditions, plants activate several stress response mechanisms. The synergistic effect of high-temperature and intense light stress has a [...] Read more.
Environmental stressors such as high temperature and intense light have been shown to have negative effects on plant growth and productivity. To survive in such conditions, plants activate several stress response mechanisms. The synergistic effect of high-temperature and intense light stress has a significant impact on ginger, leading to reduced ginger production. Nevertheless, how ginger responds to this type of stress is not yet fully understood. In this study, we examined the phenotypic changes, malonaldehyde (MDA) content, and the response of four vital enzymes (superoxide dismutase (SOD), catalase (CAT), lipoxygenase (LOX), and nitrate reductase (NR)) in ginger plants subjected to high-temperature and intense light stress. The findings of this study indicate that ginger is vulnerable to high temperature and intense light stress. This is evident from the noticeable curling, yellowing, and wilting of ginger leaves, as well as a decrease in chlorophyll index and an increase in MDA content. Our investigation confirms that ginger plants activate multiple stress response pathways, including the SOD and CAT antioxidant defenses, and adjust their response over time by switching to different pathways. Additionally, we observe that the expression levels of genes involved in different stress response pathways, such as SOD, CAT, LOX, and NR, are differently regulated under stress conditions. These findings offer avenues to explore the stress mechanisms of ginger in response to high temperature and intense light. They also provide interesting information for the choice of genetic material to use in breeding programs for obtaining ginger genotypes capable of withstanding high temperatures and intense light stress. Full article
(This article belongs to the Special Issue Metabolic Responses of Plants to Abiotic Stress)
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15 pages, 1470 KiB  
Article
Effects of Storage Temperature at the Early Postharvest Stage on the Firmness, Bioactive Substances, and Amino Acid Compositions of Chili Pepper (Capsicum annuum L.)
by
Yuan Cheng
,
Chengan Gao
,
Shaodan Luo
,
Zhuping Yao
,
Qingjing Ye
,
Hongjian Wan
,
Guozhi Zhou
and
Chaochao Liu
Metabolites 2023, 13(7), 820; https://doi.org/10.3390/metabo13070820 - 05 Jul 2023
Viewed by 700
Abstract
The commercial and nutritional quality of chili peppers deteriorates rapidly after harvest. So far, little is known about the effect of temperature on postharvest chili pepper quality. This study elucidated the effects of two temperatures (20 °C and 30 °C) on chili peppers’ [...] Read more.
The commercial and nutritional quality of chili peppers deteriorates rapidly after harvest. So far, little is known about the effect of temperature on postharvest chili pepper quality. This study elucidated the effects of two temperatures (20 °C and 30 °C) on chili peppers’ postharvest firmness, flavor, and nutritional attributes. We found that compared to 20 °C, 30 °C escalated the decline in fruit firmness, capsaicin content, and dihydrocapsaicin content, while enhancing the increment in water loss and electrical conductivity, as well as total carotenoids and ascorbic acid content. The contents of most amino acids (AAs) decreased significantly during postharvest storage compared to their initial values, whether stored at 20 °C or 30 °C; however, 30 °C had a more substantial impact than 20 °C. Meanwhile, as for soluble protein and amino acid compositions, the effect of storage temperature was genotype-dependent, as reflected by differential changes in total AA contents, single AA contents, essential AA ratio, delicious AA ratio, etc., under the 20 °C or 30 °C treatments. In conclusion, our findings reveal the influence of temperature on pepper quality, showing that the storage temperature of 20 °C was better for maintaining chili quality than 30 °C from the perspective of overall commercial attributes. Full article
(This article belongs to the Special Issue Metabolic Responses of Plants to Abiotic Stress)
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