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| Registros recuperados: 11 | |
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| ORTIZ-MORENO,Martha Lucía; SOLARTE-MURlLLO,Laura Vanessa; SANDOVAL-PARRA,Karen Ximena. |
| ABSTRACT Chlorophyta and Cyanophyta are photosynthetic organisms characterized by their biochemical plasticity, which has allowed them to develop in different environments and have a faster growth rate than plants. Depending on the species and environmental conditions, these organisms can produce nitrogenous enzymes, for atmospheric nitrogen fixation; phosphatases, that solubilize phosphorus; phytohormones, that promote plant growth; and hygroscopic polysaccharides, that prevent erosion and improve soil characteristics. In this sense, the aim of this review was to analyze the available information on the use of Chlorophyta and Cyanophyta as biofertilizers and their potential application in organic food production. Multiple studies and researches were found... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biofertilizers; Cyanobacteria; Green algae; Organic agriculture. |
| Ano: 2020 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000200303 |
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| Minguez, Laetitia; Bureau, Ronan; Halm-lemeille, Marie-pierre. |
| Antidepressants are among the most prescribed pharmaceuticals throughout the world. Their presence has already been detected in several aquatic ecosystems worldwide and their effects on non-target organisms justify the growing concern of both the public and regulatory authorities. These emerging pollutants do not occur as isolated compounds but rather as multi-component mixtures, which may lead to increased adverse effects compared to individual compounds. Freshwater and marine algae seem particularly sensitive to pharmaceuticals, including antidepressants. Studies assessing the toxicity of antidepressant mixture to algae focused mainly on binary mixtures of selective serotonin reuptake inhibitors. In the present experiment, the freshwater algae... |
| Tipo: Text |
Palavras-chave: Green algae; Diatom; Mixture; Pharmaceutical; QSAR. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00423/53429/54315.pdf |
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| Aires, Tania; Marba, Nuria; Serrao, Ester A.; Duarte, Carlos M.; Arnaud-haond, Sophie. |
| Molecular analyses of bacteria associated with photosynthetic organisms are often confounded by coamplification of the chloroplastidial 16S rDNA with the targeted bacterial 16S rDNA. This major problem has hampered progress in the characterization of bacterial communities associated to photosynthetic organisms and has limited the full realization of the potential offered by the last generation of metagenomics approaches. A simple and inexpensive method is presented, based on ethanol and bleach treatments prior to extraction, to efficiently discard a great part of chloroplastidial DNA without affecting the characterization of bacterial communities through pyrosequencing. Its effectiveness for the description of bacterial lineages associated to the green... |
| Tipo: Text |
Palavras-chave: 16S; Chloroplasts; Elimination; Green algae; Metagenomics. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00076/18739/16464.pdf |
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| Ifremer, Del; Ceva, Pleubian. |
| In 1995, the gulf of Morbihan was not showing on the whole a pronounced level of eutrophication, but has nonetheless three sites of green algae proliferation: the Auray river estuary, the branches of the Vannes and Séné estuary, as well as the outlet of the Noyalo's estuary. Only these last two sectors show algal developments that are "abnormal" and that can be linked to a specific phenomenon of eutrophication (Ulva green tide in the Rosvellec-Séné sector, Monostroma green tide in the Saint Armel-Tascon sector). In the spring of 1995, the observations made on the foreshores of the Gulf of Morbihan, excluding the islands, made it possible to estimate an algal biomass of between 2,000 and 6,000 tons. |
| Tipo: Text |
Palavras-chave: Morbihan gulf; Eutrophication; Green seaweed; Green algae; Eutrophisation; Golfe du Morbihan; Algues vertes. |
| Ano: 1996 |
URL: http://archimer.ifremer.fr/doc/1996/rapport-2085.pdf |
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| Piriou, Jean-yves; Chapron, Victorien; Annezo, Jean-pierre. |
| The gulf of Morbihan, without manifesting any pronounced signs of eutrophication, has, in 1995, three sites of green algae proliferation: the Auray river estuary, the branches of the Vannes and Séné estuary, as well as the outlet of the Noyalo's estuary. They are also the three sectors of the gulf that receive the most nutrient salts, in particular, nitrogen, which is a determining factor in the development of nitrophilic green algae (Ménesguen and Piriou 1995). During spring the nitrogen seems to come as much from urban sources (Vannes, Auray) as from agricultural sources coming from the northern catchment areas of the gulf. |
| Tipo: Text |
Palavras-chave: Morbihan gulf; Eutrophication; Nitrogen; Green seaweed; Green algae; Eutrophisation; Golfe du Morbihan; Azote; Algues vertes. |
| Ano: 1995 |
URL: http://archimer.ifremer.fr/doc/1995/rapport-2084.pdf |
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| Chérif, W.; El Bour, M.; Daly Yahia-Kefi, O.. |
| Les bio-salissures marines intéressent toute structure immergée en mer. Les dommages engendrés par ce phénomène sont économiquement importants. Les peintures utilisées pour prévenir du biofouling, utilisent des biocides organostaniques qui se sont avérés très toxiques et posent un problème environnemental important. Le présent travail s'intègre dans le cadre de la valorisation des macroalgues des côtes tunisiennes par la recherche de molécules naturelles antifouling pouvant se substituer aux substances déjà utilisées. Dans cette étude, nous avons analysé le potentiel anti-microfouling d’extraits organiques de 10 espèces d’algues vertes: Ulva linza, Ulva rigida, Chaetomorpha linum, Cladophora laetivirens, Codium bursa, Codium fragile, Caulerpa prolifera,... |
| Tipo: Journal Contribution |
Palavras-chave: Algae; Seaweeds; Green algae; Bacteria. |
| Ano: 2011 |
URL: http://hdl.handle.net/1834/4741 |
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| Chouba, L.; Ajjabi-Chebil, L.; Herry, S.. |
| Dans le but de démontrer la capacité de bioaccumulation métallique des macroalgues et sa variation temporelle, on s’est intéressé à la détermination de la gamme de concentrations en métaux traces (Plomb, Cadmium, Fer, Manganèse et Zinc) dans trois macroalgues vertes (Ulva rigida, Chaetomorpha linum, Caulerpa prolifera) au niveau de la lagune nord et du canal de navigation de Tunis sujettes à d’importants rejets anthropiques. Des collectes saisonnières ont été faites dans la lagune de Tunis durant la période d’avril 2009 au février 2010. Les teneurs métalliques déterminées par spectrophotométrie d’absorption atomique ont montré des variations significatives selon l’espèce et la saison de prélèvement. Les résultats ont montré que les teneurs en différents... |
| Tipo: Journal Contribution |
Palavras-chave: Heavy metals; Algae; Seaweeds; Bioaccumulation; Green algae. |
| Ano: 2010 |
URL: http://hdl.handle.net/1834/4733 |
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| Registros recuperados: 11 | |
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