Proline, Cysteine and Branched-Chain Amino Acids in Abiotic Stress Response of Land Plants and Microalgae

Plants, Journal Year: 2023, Volume and Issue: 12(19), P. 3410 - 3410

Published: Sept. 28, 2023

Proteinogenic amino acids are the building blocks of protein, and plants synthesize all them. In addition to their importance in plant growth development, growing evidence underlines central role played by derivatives regulating several pathways involved biotic abiotic stress responses. present review, we illustrate (i) as an energy source capable replacing sugars electron donors mitochondrial transport chain (ii) precursors osmolytes well (iii) secondary metabolites. Among drought response, proline cysteine play a special role. Besides large accumulation occurring response stress, can export reducing equivalents sink tissues organs, production H2S deriving from metabolism mediate post-translational modifications that target protein cysteines themselves. Although our general understanding microalgae physiology is still fragmentary, overview how unicellular photosynthetic organisms deal with salt also provided because interest applied sciences.

Language: Английский

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Traditional and new trend strategies to enhance pigment contents in microalgae

World Journal of Microbiology and Biotechnology, Journal Year: 2024, Volume and Issue: 40(9)

Published: July 20, 2024

Microalgae are a source of wide variety commodities, including particularly valuable pigments. The typical pigments present in microalgae the chlorophylls, carotenoids, and phycobiliproteins. However, other types pigments, family water-soluble polyphenols, usually encountered terrestrial plants, have been recently reported microalgae. Among such microalgal many flavonoids yellowish hue, used as natural textile dyes. Besides being colorants, for example food or cosmetic industry, also possess bioactive properties, making them functional nutraceutical pharmaceutical agents. Each type pigment, with its own chemical structure, fulfills particular biological functions. Considering both eukaryotes prokaryotes, some species within four most promising groups (Cyanobacteria, Rhodophyta, Chlorophyta Heterokontophyta) distinguished by their high contents specific added-value To further enhance pigment during autotrophic cultivation, review is made main related strategies adopted last decade, light adjustments (quantity quality, duration photoperiod cycle), regard to mineral medium characteristics (salinity, nutrients concentrations, presence inductive chemicals). In contrast what observed growth-related accumulation non-photosynthetic (polyphenols secondary carotenoids) requires stressful conditions. Finally, enrichment possible two new cutting-edge technologies, via application metallic nanoparticles magnetic fields.

Language: Английский

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How to identify biofouling species in marine and freshwater

Biofouling, Journal Year: 2024, Volume and Issue: 40(2), P. 130 - 152

Published: Feb. 7, 2024

The identification and management of biofouling remain pressing challenges in marine freshwater ecosystems, with significant implications for environmental sustainability industrial operations. This comprehensive review synthesizes the current state-of-the-art technologies, examining eight prominent methodologies: Microscopy Examination, Molecular Biology, Remote Sensing, Community Involvement, Ecological Methods, Artificial Intelligence, Chemical Analysis, Macro Photography. Each method is evaluated its respective advantages disadvantages, considering factors such as precision, scalability, cost, data quality. Furthermore, identifies obstacles that inhibit optimal utilization these ranging from technical limitations high operational costs to issues inconsistency subjectivity. Finally, posits a future outlook, advocating development integrated, standardized systems amalgamate strengths individual approaches. Such advancement will pave way more effective sustainable strategies management.

Language: Английский

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Plant growth regulators improve the growth and physiology of transplanted Thalassia Hemprichii fragments

Frontiers in Marine Science, Journal Year: 2024, Volume and Issue: 11

Published: Feb. 15, 2024

Introduction The transplantation of seagrass fragments with shoots and rhizomes is the most common method for ecological restoration damaged meadows. Methods aim this study was to explore effects exogenous addition (10 mg per month 3 months) three commonly used plant growth regulators (PGRs), including indoleacetic acid (IAA), gibberellin (GA3), paclobutrazol (PP333) on physiology transplanted Thalassia hemprichii (TTFs), without rhizome apex (RA), using a simulation test. [Results] IAA GA3 elevated photosynthetic capacity rate TTF leaves but did not significantly alter leaf length width. In contrast, PP333 reduced rate, while greatly increasing width root viability. Additionally, treatment led an increase in antioxidant enzyme activities (peroxidase [POD], superoxide dismutase [SOD], catalase [CAT]), as well malondialdehyde (MDA) total phenol contents TTFs, indicating some stress seagrass. Furthermore, decreased soluble sugar protein increased starch content tissues, whereas both nonstructural carbohydrate contents. presence RA positively affected T. compared TTFs RA. There significant interaction between PGRs chlorophyll fluorescence variables, pigment (p < 0.05). Discussion This provides guidelines application during

Language: Английский

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Antibiotic synergistic effect surge bioenergy potential and pathogen resistance of Chlorella variabilis biofilm

Environmental Research, Journal Year: 2024, Volume and Issue: 259, P. 119521 - 119521

Published: July 2, 2024

Language: Английский

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Metabolite Profiling of Macroalgae: Biosynthesis and Beneficial Biological Properties of Active Compounds

Marine Drugs, Journal Year: 2024, Volume and Issue: 22(10), P. 478 - 478

Published: Oct. 19, 2024

Macroalgae are known as abundant sources of phytochemicals, which offer a plethora beneficial biological properties. Besides being the most notable classes compounds found in macroalgae, phlorotannins, bromophenols, and terpenoids comprise some relevant for their Phlorotannins, mainly prevalent brown algae structurally characterized complex polyphenolic derived from phloroglucinol units, possess robust antioxidant, anti-inflammatory, antitumor, cytotoxic activities, modulated by factors such degree polymerization environmental conditions. Bromophenols, halogenated other marine organisms, exhibit significant antioxidant antiviral Their diverse structures bromination patterns contribute to potential therapeutic chemical defense agents. Pigments (chemically described primary terpenoids) play critical role light absorption energy transfer macroalgae divided into three main groups: (i) carotenoids, primarily provide photoprotective benefits; (ii) chlorophylls, facilitating conversion energy; (iii) phycobilins, mostly red important roles transfer, besides providing remarkable health benefits. Finally, secondary terpenoids, particularly (e.g., Rhodomelaceae family) central cellular interactions antimicrobial, antidiabetic, anti-inflammatory This study represents detailed analysis biosynthesis, structural diversity, activities these metabolites, emphasizing

Language: Английский

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Optimizing microalgae culture conditions for high-value biomolecules production

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 325 - 347

Published: Jan. 1, 2025

Language: Английский

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Impacts of ocean acidification on the palatability of two Antarctic macroalgae and the consumption of a grazer

Antarctic Science, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 10

Published: Feb. 20, 2025

Abstract Increases in atmospheric CO 2 have led to more entering the world’s oceans, decreasing pH a process called ’ocean acidification’. Low has been linked impacts on macroalgal growth and stress, which can alter palatability herbivores. Two common ecologically important species from western Antarctic Peninsula, unpalatable Desmarestia menziesii palatable Palmaria decipiens , were maintained under three treatments: ambient (pH 8.1), near future (7.7) distant (7.3) for 52 days 18 days, respectively. Discs of P. or artificial foods containing extracts D. each treatment presented amphipod Gondogeneia antarctica feeding choice experiments. Additionally, G. exposed different treatments 55 used assay with untreated . For eaten significantly by weight than other treatments. Similarly, discs 7.7 those 7.3 treatment. There was no significant difference consumption treated These results suggest that ocean acidification may decrease these macroalgae consumers but not

Language: Английский

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Biological activity of secondary metabolites of actinomycetes and their potential sources as antineoplastic drugs: a review

Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 16

Published: May 8, 2025

Actinomycetes are an important group of Gram-positive bacteria, renowned for their ability to produce a wide array structurally diverse and biologically active secondary metabolites. These metabolites have significant applications in fields such as antimicrobial antifungal treatments show tremendous potential cancer research. To comprehensively review the antitumor actinomycetes-derived metabolites, we conducted systematic literature search across PubMed, Web Science, Scopus databases, covering period from January 2019 2024. The used keywords including “actinomycetes,” “secondary metabolites,” “antitumor,” “cancer therapy,” “bioactivity,” “clinical application.” A total 95 relevant articles were identified through database searches. After applying inclusion exclusion criteria, 87 deemed eligible fully reviewed this article. studies highlighted structural classes compounds, polyketides, non-ribosomal peptides, alkaloids, terpenoids. Many these exhibit potent anticancer properties mechanisms inducing apoptosis, inhibiting proliferation, disrupting tumor microenvironment, targeting key oncogenic signaling pathways. This underscores crucial role actinomycetes invaluable resource drug discovery, offering new scientific insights into natural product-based therapies, expanding molecular toolbox clinical oncology, ultimately contributing public health by advancing effective innovative treatment options patients.

Language: Английский

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Eco-friendly biopesticides derived from CO2-Fixing cyanobacteria

Environmental Research, Journal Year: 2023, Volume and Issue: 239, P. 117419 - 117419

Published: Oct. 16, 2023

Language: Английский

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