Recent Advances in the Effects of Biotic and Abiotic Stressors on Plant Secondary Metabolites

A special issue of International Journal of Plant Biology (ISSN 2037-0164). This special issue belongs to the section "Plant Response to Stresses".

Deadline for manuscript submissions: 5 June 2024 | Viewed by 5830

Special Issue Editor


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Guest Editor
Laboratory for Agricultural Productions Improvement, Biotechnology and Environment (LAPABE), Faculty of Sciences, University Mohammed First, BP-717, Oujda 60000, Morocco
Interests: natural product; herbal medicine; bio-engineering; pharmaceutical sciences; pharmacology; bioavailability; molecular modeling; molecular docking; pharmacophore modeling; bioactive compounds; antioxidants; phenolics

Special Issue Information

Dear Colleagues,

Plant secondary metabolites are key sources of active medicinal and cosmetic compounds, food flavors and additives, and other biochemicals used in industry. Such metabolite accumulation is common in plants exposed to stresses, including various biotic and abiotic elicitors. Secondary metabolites, such as phenolic compounds, alkaloids and terpenoids, play a major role in the adaptation of plants to their surroundings and help them to cope with stress. Plant cell culture technologies have proven to be effective tools for studying and producing plant secondary metabolites, and for plant improvement. This Special Issue of International Journal of Plant Biology, titled "Recent Advances in the Effects of Biotic and Abiotic Stressors on Plant Secondary Metabolites", will be dedicated not only to the physiological aspects of the accumulation and metabolism of biologically active plant compounds under stress factors in plant tissue culture, but also to the influence of biotic and abiotic factors on the phytochemical profile of aromatic and medicinal plant species in in vivo conditions. This Special Issue encourages review and research papers, as well as short communications, on plant secondary metabolites and their regulation under stress conditions.

Dr. Mohamed Addi
Guest Editor

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.

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Keywords

  • secondary metabolites
  • phenolic compounds
  • alkaloids
  • terpenoids
  • biotic and abiotic stresses
  • plant tissue culture
  • in vitro
  • in vivo
  • metabolic profiling

Published Papers (3 papers)

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Research

17 pages, 2577 KiB  
Article
Tobacco Leaf-Surface Extracts: Antimicrobial Potential against Phytopathogenic Fungi and In Vitro Culture Bacterial Contaminants
by Yanelis Capdesuñer, Claudia Linares, Jochen Schöne, Abbas El-Hasan, Ralf Vögele, Ermis Yanes-Paz, Eduardo Ortega-Delgado, Marcos Edel Martínez-Montero, Erinelvis Rodríguez and Janet Quiñones-Gálvez
Int. J. Plant Biol. 2023, 14(4), 1017-1033; https://doi.org/10.3390/ijpb14040074 - 13 Nov 2023
Viewed by 1115
Abstract
The excessive use of synthetic chemicals in agriculture demands sustainable alternatives to combat crop-affecting microorganisms. Plant-derived secondary metabolites have garnered attention as promising candidates with antimicrobial properties. This study investigates the antimicrobial potential of tobacco plants, specifically non-commercial accessions Nic 1015 (“TI 1341”) [...] Read more.
The excessive use of synthetic chemicals in agriculture demands sustainable alternatives to combat crop-affecting microorganisms. Plant-derived secondary metabolites have garnered attention as promising candidates with antimicrobial properties. This study investigates the antimicrobial potential of tobacco plants, specifically non-commercial accessions Nic 1015 (“TI 1341”) and BHmN, recognized for their rich bioactive compounds. Our objectives encompassed the extraction of leaf surface compounds and the assessment of their in vitro antimicrobial activity against crop-damaging microorganisms. Ethanol-based extracts, abundant in diterpenes, were meticulously analyzed. Notably, BHmN contained cis-abienol, while both accessions featured α-CBT diol, as confirmed by thin-layer chromatography (TLC) and high-performance liquid chromatography (HPLC). TLC-Bioautography and microdilution assays unveiled substantial antifungal activity. The growth inhibition percentages correlated with extract concentrations, highlighting the pivotal role of diterpenes. These extracts exhibited pronounced efficacy against Rhizoctonia solani and Stemphylium solani but displayed relatively weaker activity against Sarocladium oryzae. Notably, Nic 1015 extract demonstrated remarkable antifungal activity at a minimal concentration of 78 µg·mL−1, while cis-abienol and sclareol inhibited the growth of Fusarium graminearum and Alternaria alternata. Additionally, the extracts demonstrated in vitro antibacterial activity against common plant culture contaminants, Bacillus licheniformis and Stenotrophomonas maltophilia. In conclusion, the findings underscore the potential of these extracts as effective tools for controlling pathogenic fungi and bacterial contaminants in plant in vitro cultures. Harnessing plant-derived secondary metabolites, especially those from tobacco leaf surface, presents a sustainable and eco-friendly strategy to mitigate the detrimental impact of microorganisms on agricultural crops, promising a greener alternative to synthetic chemical products. Full article
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15 pages, 1190 KiB  
Article
Quality Control, Phytochemical Profile, and Antibacterial Effect of Origanum compactum Benth. Essential Oil from Morocco
by Mouhcine Hayani, Noureddine Bencheikh, Atika Ailli, Mohamed Bouhrim, Amine Elbouzidi, Hayat Ouassou, Loubna Kharchoufa, Abdellah Baraich, Aziza Atbir, Fatima Zahra Ayyad, Aziz Drioiche, Mohamed Addi, Christophe Hano and Touriya Zair
Int. J. Plant Biol. 2022, 13(4), 546-560; https://doi.org/10.3390/ijpb13040044 - 24 Nov 2022
Cited by 17 | Viewed by 2032
Abstract
Origanum compactum Benth (O. compactum) is widely used traditionally in Morocco to treat a broad range of illnesses, including infectious diseases. The aim of this study was to evaluate the phytochemical composition, quality control, and antibacterial activity of O. compactum leaf [...] Read more.
Origanum compactum Benth (O. compactum) is widely used traditionally in Morocco to treat a broad range of illnesses, including infectious diseases. The aim of this study was to evaluate the phytochemical composition, quality control, and antibacterial activity of O. compactum leaf and flower essential oil. First, a quality control study on soil and irrigation water was performed to determine whether there was any risk of heavy metals endangering human health or causing stress to the plants studied. Laboratory examination of the environmental quality of the researched species revealed an almost absolute absence of metals that could endanger human health or any abiotic stressor. The essential oil was extracted by hydrodistillation. Chemical characterization was performed using gas chromatography-mass spectrometry (GC/MS). The yield of essential oil (EO) obtained by hydrodistillation of O. compactum leaves and flowers and moisture content were 4.27% and 12.20%, respectively. GC/MS identified 35 volatile compounds in the studied EO majorly composed of thymol (38.59%) followed by carvacrol (26.65%), o-cymene (14.33), and γ-terpinene (11.22%). The antibacterial activity of O. compactum leaf and flower essential oil was evaluated using the solid-state diffusion method against five Gram-negative bacterial strains and a Gram-positive strain. The results show that the essential oil of O. compactum leaves and flowers has a considerable inhibitory effect against E. coli with an MIC = 0.35 µg/mL, E. pseudocoloides (MIC = 0.35 µg/mL), E. vekanda (MIC = 0.35 µg/mL), K. pneumoniae (MIC = 0.7 µg/mL), P. aeruginosa (MIC = 0.35 µg/mL), and S. aureus (MIC = 0.35 µg/mL). Full article
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13 pages, 1488 KiB  
Article
Biochemical Characteristics and Elemental Composition Peculiarities of Rheum tataricum L. in Semi-Desert Conditions and of European Garden Rhubarb
by Nadezhda Golubkina, Viktor Kharchenko, Maria Bogachuk, Andrew Koshevarov, Sergey Sheshnitsan, Olga Kosheleva, Nikolay Pirogov and Gianluca Caruso
Int. J. Plant Biol. 2022, 13(3), 368-380; https://doi.org/10.3390/ijpb13030031 - 16 Sep 2022
Cited by 6 | Viewed by 1567
Abstract
Biochemical and mineral peculiarities of plants inhabiting desert and semi-desert areas may provide important information about the mechanism of their adaptability and reveal the prospects of their utilization. Rheum tataricum L., known for its high tolerance to drought, salinity, and nutritional deficiency, is [...] Read more.
Biochemical and mineral peculiarities of plants inhabiting desert and semi-desert areas may provide important information about the mechanism of their adaptability and reveal the prospects of their utilization. Rheum tataricum L., known for its high tolerance to drought, salinity, and nutritional deficiency, is the least studied species of wild rhubarb. Using biochemical and ICP-MS analysis, the antioxidant status and mineral composition of R. tataricum were determined. Extremely high levels of antioxidant activity (148–155 mg GAE g−1 d.w.), polyphenols (24.6–25.1 mg GAE g−1 d.w.) and carotenoids (1.94 mg-eq β-carotene g−1 d.w.) were revealed in roots, proline in leaves (71.1 ± 6.2 mg kg−1 d.w.) and malic acid in stems (3.40 ± 0.50 mg g−1 d.w.). Compared to garden rhubarb, R. tataricum demonstrated significant root–leaves translocation of Li, Se, Si, and Mo, known to participate in plant antioxidant defense. Under high levels of Ca, Na, Mg, Fe, Cr and Si in soil, R. tataricum demonstrated the ability to significantly increase the accumulation of these elements in roots, showing a hyperaccumulation ability for Sr. The first broad picture of R. tataricum biochemical and mineral characteristics in semi-desert habitat and its nutritional value indicate the prospects of R. tataricum utilization in plant breeding, medicine, and nutrition. Full article
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Author: Mohamed Bouhrim
Affiliation: University Mohammed First, Boulevard Mohamed VI, Morocco

 

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