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ALG Algae --- Algae --- Chlorophyceae --- Enteromorpha --- Ulva --- thesis
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Toxic algae --- Ulva --- Marine ecology --- Algues toxiques --- Écologie marine --- Toxicology --- Toxicologie --- Ulva. --- Écologie marine --- Toxicologie.
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BEL Belgium & GDL --- CRY General Cryptogamy --- Belgium --- Brabant --- Fungi --- Lichens --- Pteridophyta --- Ulva --- bryophytes --- checklists --- floristics --- general cryptogamy --- provincie Antwerpen
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Il-Maghluq ta’ Marsaskala is a maltese Natura 2000 nature reserve that includes a small pond. The site hosts various endemic species that are important to protect: this is why the manager of the site, James Gabarretta, decided to implement a project of phytoremediation to purify the water of the pond with different water treatments. This project includes the algea bioreactor: two species from the site were used (Ulva lactuca and Cladphora sp.) to decontaminate the water. The objectives were to quantify the changes (if any) in the phosphate, nitrate and nitrite level in the water placed in the tanks and to determine which algae give the best results. The concentrations of the parameters in the control tanks were decreasing but less rapidly than in the tanks with the algae. The results obtained demonstrated that overall, up to 40% of the phosphate was removed, as well as 96% of the nitrates and 99% of the nitrite contained in the water with the algae. After running a Spearman correlation test and given the outcome of the other statistics performed on the dataset, it conveys the impression that Cladophora sp. is the most effective and suitable alga of the two that were tested. Cladophora sp. tended to display the lowest results after the 13 days of experimentation. Moreover, the correlation obtained after the Spearman test proved that the experimentation was reproductible. This alga seemed to be the more efficient and therefore should be reused instead of Ulva sp. for other experimentations in the Marsaskala site. Further experimentations have to be conducted to make sure that the algae can be used on a larger-scale project throughout the year. Il-Maghluq ta' Marsaskala est une réserve maltaise classée Natura 2000 et est dotée d'un petit étang. Le site abrite diverses espèces endémiques qu'il est important de protéger: c'est pourquoi le gestionnaire du site, James Gabarretta, a décidé de mettre en oeuvre un projet de phytoremédiation pour purifier l'eau de l'étang avec différents traitements de l'eau. Ce projet comprend le bioréacteur à algues: deux espèces du site ont été utilisées (Ulva lactuca et Cladphora sp.). Les objectifs étaient de quantifier les changements (s'il y en avait) du niveau de phosphate, nitrate et nitrite dans l'eau placée dans les réservoirs et de déterminer quelles algues donnent les meilleurs résultats. Les concentrations des paramètres dans les bassins de contrôle diminuaient, mais moins rapidement que dans les bassins avec les algues. Les résultats obtenus ont démontré que globalement jusqu'à 40% du phosphate a été éliminé, ainsi que 96% des nitrates et 99% des nitrites contenus dans l'eau avec les algues. Après avoir effectué un test de corrélation de Spearman et compte tenu des résultats des autres statistiques effectuées sur l'ensemble des données, cela donne l'impression que Cladophora sp. est l'algue la plus efficace et la plus appropriée des deux qui ont été testées. Cladophora sp. a eu tendance à afficher les résultats les plus faibles après les 13 jours d'expérimentation. De plus, la corrélation obtenue après le test de Spearman a prouvé que l'expérimentation était reproductible. Cette algue semble être la plus efficace et devrait donc être réutilisée à la place de Ulva lactuca pour d'autres expérimentations sur le site de Marsaskala. D'autres expériences doivent être menées pour s'assurer que les algues peuvent être utilisées dans un projet à plus grande échelle tout au long de l'année.
algae --- bioreactor --- cladophora --- ulva lactuca --- phytoremediation --- malta --- natura 2000 --- Sciences du vivant > Sciences de l'environnement & écologie
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Algae --- marine Algae --- Mexico --- Gulf of California --- Chlorophyta --- Phaeophyceae --- Ulvophyceae --- Cladophorophyceae --- Bryopsidophyceae --- Dasycladophyceae --- Fucales --- Sargassum --- Ulva --- new taxa --- new combinations --- endemics --- Acetabularia
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Des échantillons qui disparaissent dans les laboratoires, des corps enterrés avant d'être autopsiés, des jeux d'influence, des pressions et un silence de plomb. L'intrigue a pour décor le littoral breton et elle se joue depuis des dizaines d'années. Inès Léraud et Pierre van Hove proposent une enquête sans précédent, faisant intervenir lanceurs d'alerte, scientifiques, agriculteurs et politiques.
Eutrophication. --- Marine ecology --- Toxic algae --- Ulva. --- Marées vertes. --- Algues toxiques --- Écologie marine --- Prolifération d'algues nuisibles. --- Phénomènes écologiques et environnementaux. --- Toxicology. --- Toxicologie. --- Écologie marine --- Marées vertes.
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The book is reprint version of the Special Issue entitled Research on the Regulatory Mechanisms of Algae Reproduction under Abiotic Stress Conditions, highlighting novel findings that significantly contribute to the development of our understanding of how abiotic stress-inducible reproduction is regulated by physiological responses including the life cycle trade-off.
Research & information: general --- Biology, life sciences --- asexual reproduction --- 'Bangia' sp. ESS1 --- Bangiales --- calm stress --- freezing tolerance --- fatty acid --- membrane fluidity --- climate change --- foundation species --- fucoid brown algae --- non-additive effect --- simulated herbivory --- Bangia atropurpurea --- 'Bangia' sp. --- heat stress --- stress memory --- thermotolerance --- macroalga --- Ulva prolifera --- obligate asexual strain --- relative growth rate --- sporulation --- land-based cultivation --- germling cluster method --- biomass allocation --- green tide --- Ulva ohnoi --- vegetative growth --- asexual reproduction --- 'Bangia' sp. ESS1 --- Bangiales --- calm stress --- freezing tolerance --- fatty acid --- membrane fluidity --- climate change --- foundation species --- fucoid brown algae --- non-additive effect --- simulated herbivory --- Bangia atropurpurea --- 'Bangia' sp. --- heat stress --- stress memory --- thermotolerance --- macroalga --- Ulva prolifera --- obligate asexual strain --- relative growth rate --- sporulation --- land-based cultivation --- germling cluster method --- biomass allocation --- green tide --- Ulva ohnoi --- vegetative growth
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The book is reprint version of the Special Issue entitled Research on the Regulatory Mechanisms of Algae Reproduction under Abiotic Stress Conditions, highlighting novel findings that significantly contribute to the development of our understanding of how abiotic stress-inducible reproduction is regulated by physiological responses including the life cycle trade-off.
Research & information: general --- Biology, life sciences --- asexual reproduction --- ‘Bangia’ sp. ESS1 --- Bangiales --- calm stress --- freezing tolerance --- fatty acid --- membrane fluidity --- climate change --- foundation species --- fucoid brown algae --- non-additive effect --- simulated herbivory --- Bangia atropurpurea --- ‘Bangia’ sp. --- heat stress --- stress memory --- thermotolerance --- macroalga --- Ulva prolifera --- obligate asexual strain --- relative growth rate --- sporulation --- land-based cultivation --- germling cluster method --- biomass allocation --- green tide --- Ulva ohnoi --- vegetative growth --- n/a --- 'Bangia' sp. ESS1 --- 'Bangia' sp.
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Marine habitats are promising sources to identify novel organisms and compounds. A total of 70% of the planet’s surface is covered by ocean, and little is known about the biosphere within these habitats. In the last few years, numerous novel bioactive compounds or secondary metabolites from marine environments have been described. This is, and will be, a promising source of candidate compounds in pharma research and chemical biology. In recent years, a number of novel techniques have been introduced to the field and it has become easier to actually (bio-)prospect compounds such as enzyme inhibitors. Those novel compounds then need to be characterized and evaluated in comparison to well-known representatives. This Special Issue focuses on the description of novel enzyme inhibitors of marine origin, including bioprospecting, omic approaches, and structural and mechanistic aspects.
sponge Monanchora pulchra --- pentacyclic guanidine alkaloids --- GH36 α-galactosidase --- GH109 α-N-acetylgalactosaminidase --- slow-binding irreversible inhibitor --- monanchomycalin B --- monanhocidin A --- normonanhocidin A --- Alzheimer′s disease --- BACE1 --- acetylcholinesterase --- in silico docking --- phlorotannins --- Ulva intestinalis --- ACE inhibitory peptide --- optimization --- purification --- structural identification --- molecular docking --- secondary metabolites --- Mycosphaerella sp. --- asperchalasine --- α-glucosidase --- kinase inhibitors --- drug development --- marine natural products --- inhibitor --- macroalgae --- marine fish --- protease --- Ulva ohnoi --- functional annotation --- structure–function relation --- natural products --- bioactives --- enzyme inhibition --- inactivation --- marine bacteria --- marine fungi --- marine sponges
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The book is reprint version of the Special Issue entitled Research on the Regulatory Mechanisms of Algae Reproduction under Abiotic Stress Conditions, highlighting novel findings that significantly contribute to the development of our understanding of how abiotic stress-inducible reproduction is regulated by physiological responses including the life cycle trade-off.
asexual reproduction --- ‘Bangia’ sp. ESS1 --- Bangiales --- calm stress --- freezing tolerance --- fatty acid --- membrane fluidity --- climate change --- foundation species --- fucoid brown algae --- non-additive effect --- simulated herbivory --- Bangia atropurpurea --- ‘Bangia’ sp. --- heat stress --- stress memory --- thermotolerance --- macroalga --- Ulva prolifera --- obligate asexual strain --- relative growth rate --- sporulation --- land-based cultivation --- germling cluster method --- biomass allocation --- green tide --- Ulva ohnoi --- vegetative growth --- n/a --- 'Bangia' sp. ESS1 --- 'Bangia' sp.
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