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Pesquisa : B05.080.500.600.500 [Categoria DeCS]
Referências encontradas : 34 [refinar]
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Id: biblio-1022816
Autor: Infante, Claudia D; Castillo, Francisca; Pérez, Vilma; Riquelme, Carlos.
Título: Inhibition of Nitzschia ovalis biofilm settlement by a bacterial bioactive compound through alteration of EPS and epiphytic bacteria
Fonte: Electron. j. biotechnol;33:1-10, May. 2018. graf, tab, ilus.
Idioma: en.
Projeto: CONICYT; . Fondef IDeA; . University of Antofagasta.
Resumo: Background: Marine ecosystems contain benthic microalgae and bacterial species that are capable of secreting extracellular polymeric substances (EPS), suggesting that settlement of these microorganisms can occur on submerged surfaces, a key part of the first stage of biofouling. Currently, anti-fouling treatments that help control this phenomenon involve the use of biocides or antifouling paints that contain heavy metals, which over a long period of exposure can spread to the environment. The bacterium Alteromonas sp. Ni1-LEM has an inhibitory effect on the adhesion of Nitzschia ovalis, an abundant diatom found on submerged surfaces. Results: We evaluated the effect of the bioactive compound secreted by this bacterium on the EPS of biofilms and associated epiphytic bacteria. Three methods of EPS extraction were evaluated to determine the most appropriate and efficient methodology based on the presence of soluble EPS and the total protein and carbohydrate concentrations. Microalgae were cultured with the bacterial compound to evaluate its effect on EPS secretion and variations in its protein and carbohydrate concentrations. An effect of the bacterial supernatant on EPS was observed by assessing biofilm formation and changes in the concentration of proteins and carbohydrates present in the biofilm. Conclusions: These results indicate that a possible mechanism for regulating biofouling could be through alteration of biofilm EPS and alteration of the epiphytic bacterial community associated with the microalga.
Descritores: Diatomáceas
Biofilmes
Microalgas
Matriz Extracelular de Substâncias Poliméricas
-Ambiente Marinho
Incrustação Biológica
Metagenômica
Microbiota
Responsável: CL1.1 - Biblioteca Central


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Texto completo SciELO Chile
Texto completo
Id: biblio-1138591
Autor: Gómez Ramírez, Briana Davahiva; Sepúlveda Valencia, José Uriel; Alzate Arbelaez, Andrés Felipe; Herrera, Jorge Mario; Rojano, Benjamín Alberto.
Título: Evaluación oxidativa, microbiológica, sensorial y perfil de ácidos grasos de un yogur con ácido docosahexaenoico (DHA) extraído de aceite de microalgas / Oxidative, sensory and fatty acid profile evaluation of a yogurt with docosahexaenoic acid (DHA) extracted from microalgae oil
Fonte: Rev. chil. nutr;47(4):568-579, ago. 2020. tab, graf.
Idioma: es.
Resumo: RESUMEN Las necesidades de ácido docosahexaenoico (DHA), se incrementan en la mujer gestante para el desarrollo visual y neurológico del feto y el lactante. En este trabajo, se desarrolló y se evaluó un yogur adicionado con aceite de microalgas, que contribuyera a la recomendación dietaria de DHA en mujeres gestantes y lactantes. Se diseñaron tres formulaciones de yogur con 0,075; 0,125 y 0,175% de aceite de microalga y se compararon con una muestra control. Se evaluaron propiedades fisicoquímicas, sensoriales, microbiológicas, perfil de ácidos grasos, potencial antioxidante (ABTS, fenoles totales) y peroxidación lipídica (sustancias reactivas al ácido tiobarbitúrico [TBARS]). Los yogures adicionados con el aceite de microalga cubrieron en 30, 45 y 63% las recomendaciones de DHA para mujeres gestantes y lactantes por porción (200 mL). Se observó estabilidad del ácido graso, excepto en la muestra de mayor adición del aceite. La muestra con adición de 0,125% de aceite de microalga fue la de mejor calificación por el panel sensorial. Todas las muestras cumplieron con el estándar microbiológico y fisicoquímico para un yogur entero adicionado con dulce. Se observó potencial antioxidante promisorio en el yogur, capaz de proteger el DHA. Se concluye que las bebidas lácteas como el yogur son matrices adecuadas para la adición de aceite de microalga con la finalidad de aumentar el DHA en la dieta, especialmente en etapas en que las necesidades de este componente son más altas, como en periodo de gestación y lactancia.

ABSTRACT The needs for docosahexaenoic acid (DHA) are increased during pregnancy for the visual and neurological development of the fetus and the breastfed infant. In this study, a yogurt with microalgae oil added to contribute to the dietary recommendation of DHA in pregnant and breastfeeding women was developed and evaluated. Three yogurt formulations were designed with 0.075; 0.125 and 0.175 microalgae oil percentage and compared with a control sample. Fatty acid profile, antioxidant potential (ABTS, total phenols), lipid peroxidation (thiobarbitrical acid reactive substances [TBARS]), physicochemical, sensory, and microbiological properties were evaluated. Yogurts with microalgae oil added covered 30, 45 and 63% of DHA recommendations for pregnant and breastfeeding women per portion (200 mL). Fat acid stability was observed, except in the one with the greatest oil addition. The sample with 0.125% of microalgae oil added was rated the highest by the sensory panel. All samples met the microbiological and physicochemical standard for a whole yogurt added with sugar. Promising antioxidant potential capable of protecting DHA was observed in the yogurt. We conclude that dairy drinks such as yogurt are suitable matrices for adding microalgae oil in order to increase DHA in the diet, especially in stages where the needs of this component are higher as is the case during pregnancy and lactation periods.
Descritores: Aleitamento Materno
Gravidez
Feto
-Fenóis
Ácidos Graxos
Microalgas
Antioxidantes
Limites: Feminino
Gravidez
Lactente
Tipo de Publ: Artigo Clássico
Responsável: CL334.1 - Biblioteca UBO


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Texto completo SciELO Brasil
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Id: biblio-1249210
Autor: Matos, Ângelo Paggi.
Título: Advances in Microalgal Research in Brazil
Fonte: Braz. arch. biol. technol;64:e21200531, 2021. tab, graf.
Idioma: en.
Projeto: Conselho Nacional de Desenvolvimento Científico e Tecnológico.
Resumo: Abstract Microalgae research has attracted interest worldwide and in order to advance algal biotechnology in Brazil, government has been funding several projects. In the last 10 years, two main funds were provided by the National Council of Scientific and Technological Development (CNPq) agency to researchers in Brazil, who study the potential uses of microalgae for biomass, bioproducts and biofuels production. These funded projects addressed aspects of algal strain identification, development of algal cultivation techniques, designing photobioreactors and raceway ponds, modeling harvesting and dewatering process, maximizing biomass and oil productivities, characterizing chemical composition with different extractions systems and determining physiochemical properties of biodiesel. This review presents the state of art of algal research conducted by Brazilian institutions. Special attention is given to the recent progress on microalgal cultivation, high-value products extracted from microalgae and potential biofuels production. This review may serve as a policy instrument for planning next steps for algal research in Brazil as well as for attracting attention from international researchers who work with microalgae and would like to pursue a future partnership on algal research with Brazilian research institutions.
Descritores: Biotecnologia/métodos
Biocombustíveis
Microalgas
Fotobiorreatores
Responsável: BR1.1 - BIREME


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Texto completo SciELO Chile
Texto completo
Id: biblio-950720
Autor: Chaudhuri, Dipankar; Ghate, Nikhil Baban; Deb, Shampa; Panja, Sourav; Sarkar, Rhitajit; Rout, Jayashree; Mandal, Nripendranath.
Título: Assessment of the phytochemical constituents and antioxidant activity of a bloom forming microalgae Euglena tuba
Fonte: Biol. Res;47:1-11, 2014. graf, tab.
Idioma: en.
Resumo: BACKGROUND: Unstable generation of free radicals in the body are responsible for many degenerative diseases. A bloom forming algae Euglena tuba growing abundantly in the aquatic habitats of Cachar district in the state of Assam in North-East India was analysed for its phytochemical contents, antioxidant activity as well as free radical scavenging potentials. RESULTS: Based on the ability of the extract in ABTS•+ radical cation inhibition and Fe3+ reducing power, the obtained results revealed the prominent antioxidant activity of the algae, with high correlation coefficient of its TEAC values to the respective phenolic and flavonoid contents. The extract had shown its scavenging activity for different free radicals and 41.89 ± 0.41 µg/ml, 5.83 ± 0.07 µg/ml, 278.46 ± 15.02 µg/ml and 223.25 ± 4.19 µg/ml were determined as the IC50 values for hydroxyl, superoxide, nitric oxide and hypochlorous acid respectively, which are lower than that of the corresponding reference standards. The phytochemical analysis also revealed that the phenolics, flavonoids, alkaloids, tannins and carbohydrates are present in adequate amount in the extract which was confirmed by HPLC analysis. CONCLUSIONS: The results showed that 70% methanol extract of the algae possesses excellent antioxidant and free radical scavenging properties.
Descritores: Extratos Celulares/química
Sequestradores de Radicais Livres/metabolismo
Substâncias Redutoras/metabolismo
Euglena/química
Antioxidantes/metabolismo
-Oxirredução
Fenóis/análise
Ácido Ascórbico/análise
Taninos/análise
Flavonoides/análise
Peroxidação de Lipídeos/efeitos dos fármacos
Cromanos/metabolismo
Cromatografia Líquida de Alta Pressão
Metanol
Alcaloides/análise
Microalgas
Glucose/análise
Índia
Limites: Animais
Masculino
Camundongos
Tipo de Publ: Research Support, Non-U.S. Gov't
Responsável: CL1.1 - Biblioteca Central


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Id: biblio-1121042
Autor: García-Pérez, Josue; García-Lopez, Alan; Carrillo-Ovalle, Leonel; Solares-Cortez, Nicolás; López-Bran, Rubén.
Título: Florecimiento algal nocivo de Pyrodinium bahamense en diciembre 2018 en la costa del Pacífico de Guatemala / Harmful algal bloom of Pyrodinium bahamense in December 2018 in the Pacific coast of Guatemala
Fonte: Cienc. tecnol. salud;7(1):137-142, 2020. ilus.
Idioma: es.
Resumo: Los florecimientos algales nocivos (FAN) son eventos naturales que ocurren cuando una o más especies de microalgas proliferan en concentraciones que pueden causar daño a los organismos acuáticos y a seres humanos que los consuman. En las últimas décadas, se ha registrado a nivel mundial un aumento de eventos de mortalidad alarmante de organismos acuáticos e intoxicaciones en seres humanos causadas por toxinas producidas por microalgas. En Guatemala existe escasa información sobre eventos FAN, no obstante, en diciembre de 2018 ocurrió un FAN en la costa Pacífico de Guatemala. La Comisión Nacional para la Vigilancia y el Control de la Marea Roja Tóxica recolectó muestras biológicas e identificó la presencia de 3,000 cel/L del dinoflagelado Pyrodinium bahamense. El bioensayo en ratón de las muestras, indica concentraciones de saxitoxina de 8,236 UR/100 g y 6,559 UR/100 g, para los días 20 y 27 de diciembre, respectivamente. Estas concentraciones no han sido reportadas previamente en Guatemala, y pueden ser potencialmente tóxicas para la salud pública. Se recomienda mantener un monitoreo de FAN para prevenir impactos negativos en la salud pública y ambiental.

Harmful algal blooms (HABs) are natural events that occur when one or more species of microalgae proliferate at concentrations that can cause damage to aquatic organisms and to those who consume them. In Guatemala very little information exists on HAB events, although in December 2018 has occurred a HABs at the Pacific Coast of Guatemala. A biological sample were collected by the National Commission for Surveillance and Control of Toxic Red Tide. The samples showed 3,000 cel/L of the dinoflagellate Pyrodinium bahamense. During the bioassay for saxitoxin, the concentrations reached 8,236 MU/100 g and 6,559 MU/100 g, for December 20th and 27th, respectively. These concentrations has not been reported previously for Guatemala, and could be a risk in the public health. This result emphasizes the importance of maintaining the HABS monitoring program to prevent negative impact on public environmental health.
Descritores: Dinoflagelados
Proliferação Nociva de Algas
Microalgas/crescimento & desenvolvimento
-Fitoplâncton
Saxitoxina/envenenamento
Saúde Ambiental
Vigilância
Eutrofização
Limites: Humanos
Responsável: GT49.1


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Texto completo SciELO Brasil
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Id: biblio-1132245
Autor: Giraldo, Néstor David; Buchelly, Raquel Juliana Romo; Hincapié, Danilo Echeverri; Atehortua, Lucia.
Título: Transformation of Brewery Subproducts into Valuable Biomass Using Mixotrophic Culture of Chlorella pyrenoidosa and Associated Bacteria
Fonte: Braz. arch. biol. technol;63:e20190229, 2020. tab, graf.
Idioma: en.
Projeto: Departamento Administrativo de Ciencia, Tecnología e Innovación - Colciencias, Cervecería Union, Fondo de Internacionalización of Universidad de Antioquia and ERANet-LAC1st Joint Call.
Resumo: Abstract To develop a biorefinery concept applied in the brewery industry, Chlorella pyrenoidosa and a consortium of associated bacteria were cultivated mixotrophically in a continuous photobioreactor using brewery low-value subproducts as an integrative process. Beer production residues were biochemically characterized to assess the most promising options to be used as a nutrient source for microalgal cultivation. Due to its physical and chemical properties, pre-treated weak wort was used to prepare an organic complex culture medium for microalgal biotransformation. Filtration and nitrogen supplementation were necessary to improve nutrient removal and biomass productivity. Maximal removal of nitrate and phosphate obtained were 90% and 100% respectively. Depending on operation conditions, total carbohydrates depuration ranged from 50 - 80%. The initial concentration of total carbohydrates of the weak wort must be adjusted to 2 - 4g/L to maintain a stable equilibrium between microalgal and bacterial growth. The biochemical composition of produced biomass varied depending on the cultivation conditions as well as on its final use. Upon continuous mixotrophic conditions evaluated in this study, C. pyrenoidosa was composed mainly of carbohydrates and protein.
Descritores: Cerveja
Fenômenos Bioquímicos
Biotransformação
Chlorella/crescimento & desenvolvimento
Microalgas/crescimento & desenvolvimento
-Carboidratos
Chlorella/química
Biomassa
Fotobiorreatores/microbiologia
Limites: Animais
Responsável: BR1.1 - BIREME


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Texto completo SciELO Costa Rica
Texto completo
Id: biblio-1003353
Autor: Sánchez-Rodríguez, Diana Elizabeth; Ortiz-Aguirre, Ismael; Aguila-Ramírez, Ruth Noemí; Rico-Virgen, Erika Guadalupe; González-Acosta, Bárbara; Hellio, Claire.
Título: Marine bacteria from the Gulf of California with antimicrofouling activity against colonizing bacteria and microalgae / Bacterias marinas del Golfo de California con actividad antimicrobiana frente a bacterias colonizadoras y microalgas
Fonte: Rev. biol. trop;66(4):1649-1663, oct.-dic. 2018. tab.
Idioma: en.
Resumo: Abstract One way of reducing the input of pollutants into the marine environment is to enforce the use of non-toxic antifouling paints in marine protected areas. Thus, the purpose of this study was to detect marine microorganisms that secrete inhibitory substances against bacteria and microalgae to avoid biofouling on manmade structures in La Paz bay, B.C.S., Mexico. The inhibitory potential of 125 bacteria was evaluated against biofilm-forming bacteria. Crude extracts were obtained with methanol and ethyl acetate from 16 bacterial strains that exhibited antagonistic and antibacterial activity in a preliminary screening. Antibacterial and antimicroalgal assays were performed using crude extracts, the minimum inhibitory concentration (MIC) was determined. The highest activity against bacteria and microalgae was found in two strains, Shewanella algae and Staphylococcus sp. The results of this study suggest that extracts of bacteria from the Gulf of California with antimicrobial properties against biofilm-forming bacteria can also prevent the adhesion of microalgae, which may control the development of biofilm formation and, as a consequence, biofouling.(AU)

Resumen Una alternativa para reducir la contaminación en el medio marino es el uso de pinturas anti-incrustantes no tóxicas en áreas marinas protegidas. En el presente estudio se propuso encontrar microorganismos marinos que secreten sustancias capaces de inhibir la adhesión de bacterias y microalgas, de esta manera evitar la bioincrustación en estructuras marinas en la bahía de La Paz, B.C.S., México. Un total de 125 bacterias fueron evaluadas por su capacidad para inhibir el desarrollo de bacterias formadoras de biopelículas. En una selección preliminar de actividad antagónica y antibacteriana, 16 cepas bacterianas mostraron potencial actividad inhibitoria, de las que se obtuvieron los extractos crudos con metanol y acetato de etilo. Se realizaron ensayos antibacterianos y anti-microalgales utilizando los extractos crudos, se determinó la concentración mínima inhibitoria (MIC). Dos cepas mostraron la mayor actividad contra bacterias y microalgas: Shewanella algae y Staphylococcus sp. Los resultados de este estudio sugieren que los extractos de bacterias aisladas en el Golfo de California que poseen propiedades antimicrobianas contra las bacterias formadoras de biofilm y también pueden prevenir la adhesión de microalgas, con lo que se podría controlar el desarrollo de la formación de biopelículas y como consecuencia, el biofouling.(AU)
Descritores: Poluição do Mar/prevenção & controle
Shewanella
Incrustação Biológica
Microalgas
-California
México
Responsável: BR1.1 - BIREME


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Id: biblio-1053195
Autor: Olasehinde, Tosin A; Odjadjare, Ejovwokoghene C; Mabinya, Leonard V; Olaniran, Ademola O; Okoh, Anthony I.
Título: Chlorella sorokiniana and Chlorella minutissima exhibit antioxidant potentials, inhibit cholinesterases and modulate disaggregation of ß-amyloid fibrils
Fonte: Electron. j. biotechnol;40:1-9, July. 2019. tab, graf, ilus.
Idioma: en.
Resumo: BACKGROUND: Microalgae are aquatic chlorophyll-containing organisms comprising unicellular microscopic forms, and their biomasses are potential sources of bioactive compounds, biofuels and food-based products. However, the neuroprotective effects of microalgal biomass have not been fully explored. In this study, biomass from two Chlorella species was characterized, and their antioxidant, anticholinesterase and anti-amyloidogenic activities were investigated. RESULTS: GC­MS analysis of the extracts revealed the presence of some phenols, sterols, steroids, fatty acids and terpenes. Ethanol extract of Chlorella sorokiniana (14.21 mg GAE/g) and dichloromethane extract of Chlorella minutissima (20.65 mg QE/g) had the highest total phenol and flavonoid contents, respectively. All the extracts scavenged 2,2-diphenyl-1-picrylhydrazyl, 2,2-azinobis (3-ethylbenzothiazoline-6-sulfonate) and hydroxyl radicals. The highest metal chelating activity of the extracts was observed in the ethanol extracts of C. minutissima (102.60 µg/mL) and C. sorokiniana (107.84 µg/mL). Furthermore, the cholinesterase inhibitory activities of the extracts showed that ethanol extract of C. sorokiniana (13.34 µg/mL) exhibited the highest acetylcholinesterase inhibitory activity, while dichloromethane extract of C. minutissima (11.78 µg/mL) showed the highest butyrylcholinesterase inhibitory activity. Incubation of the ß-amyloid protein increased the aggregation of amyloid fibrils after 96 h. However, ethanol extract of C. sorokiniana and C. minutissima inhibited further aggregation of Aß1­42 and caused disaggregation of matured protein fibrils compared to the control. This study reveals the modulatory effects of C. sorokiniana and C. minutissima extracts on some mediators of Alzheimer's disease and provides insights into their potential benefits as functional food, nutraceutics or therapeutic agent for the management of this neurodegenerative disease.
Descritores: Chlorella/química
Inibidores da Colinesterase/farmacologia
Peptídeos beta-Amiloides/antagonistas & inibidores
Antioxidantes/farmacologia
-Fenóis/análise
Esteroides/análise
Esteróis/análise
Terpenos/análise
Extratos Vegetais/farmacologia
Extratos Vegetais/química
Inibidores da Colinesterase/química
Espectroscopia de Infravermelho com Transformada de Fourier
Fármacos Neuroprotetores
Biomassa
Etanol
Ácidos Graxos/análise
Microalgas
Doença de Alzheimer/prevenção & controle
Amiloide/efeitos dos fármacos
Cromatografia Gasosa-Espectrometria de Massas
Antioxidantes/química
Responsável: CL1.1 - Biblioteca Central


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Texto completo SciELO Brasil
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Id: biblio-886796
Autor: ROCHA, GISELI S; MATSUMOTO, REGINALDO S; LOMBARDI, ANA TERESA; LIMA, MARIA INÊS S.
Título: Potential effects of fungicide and algaecide extracts of Annona glabra L. (Annonaceae) on the microalgae Raphidocelis subcapitata and on the oomycete Pythium
Fonte: An. acad. bras. ciênc;89(3,supl):2101-2111, 2017. tab, graf.
Idioma: en.
Projeto: Conselho Nacional de Desenvolvimento Científico e Tecnológico; . Fundação de Amparo à Pesquisa do Estado de São Paulo.
Resumo: ABSTRACT Annona glabra L. is a semi-deciduous tree that contains several active substances, including secondary metabolites, with antifungal activity. Phytopathogenic strains of the genus Pythium cause billion dollar losses all over the world on natural and crop species. Searching for eco-friendly algaecides and fungicides, we analyzed the effects of acetone extracts of A. glabra leaves on the algae Rhaphidocelis subcapitata (Korshikov) and on the oomycete Pythium aphanidermatum (Edson). We evaluated ten extract concentrations for each organism - 0 to 400 mg L-1 for algae and 0-1000 µg disc1 for oomycete. The results showed no effect on algae up to 75 mg L-1, but a significant inhibitory effect at 125 mg L-1 and above, which reduced the growth rate and the final biomass of the algae. Extract concentrations above 200 mg L-1 were completely inhibitory. The half maximal inhibitory concentration for 72 and 96 h of exposure to our crude extracts are comparable to those obtained with commercial fungicides and herbicides used in aquatic ecosystems. The P. aphanidermatum inhibition concentrations have effects comparable to fungicides as Cycloheximide and Bifonazole. Some substances isolated from the extracts are described as antifungals, which could explain part of anti-oomycete activity. Our results highlight the importance of searching bioactive compounds from plants.
Descritores: Pythium/efeitos dos fármacos
Extratos Vegetais/farmacologia
Folhas de Planta/efeitos dos fármacos
Annona/química
Herbicidas/farmacologia
Antifúngicos/farmacologia
-Microalgas
Responsável: BR1.1 - BIREME


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Texto completo SciELO Brasil
Texto completo
Id: lil-785029
Autor: Masuda, L S M; Enrich-Prast, A.
Título: Benthic microalgae community response to flooding in a tropical salt flat / Resposta da comunidade de microalgas bentônicas à inundação em uma planície hipersalina tropical
Fonte: Braz. j. biol;76(3):577-582tab, graf.
Idioma: en.
Resumo: Abstract This research evaluated the effect of flooding on the microphytobenthos community structure in a microbial mat from a tropical salt flat. Field samples were collected during four consecutive days: on the first three days the salt flat was dry, on the fourth day it was flooded by rain. In order to evaluate the community maintained in flood conditions, samples from this area were collected and kept in the laboratory for 10 days with sea water. The results of total abundance of microphytobenthos varied from 4.2 × 108 to 2.9 × 109 organisms L–1, total density increased one order of magnitude under the effect of water for both situations of precipitation in the salt flat and in experimental conditions, an increase due to the high abundance of Microcoleus spp. Shannon index (H’) was higher during the desiccation period. Our data suggest that changes in the abundance of organisms were due to the effect of water. The dominance of the most abundant taxa remained the same under conditions of desiccation and influence of water, and there is probably a consortium of microorganisms in the microbial mat that helps to maintain these dominances.

Resumo Esse trabalho avaliou os efeitos da inundação na estrutura da comunidade microfitobentônica de um tapete microbiano em uma planície hipersalina tropical. As amostragens foram realizadas no campo durante quatro dias consecutivos: nos três primeiros dias o local estava seco e no quarto dia foi inundando com chuva. Para avaliar a comunidade mantida em condições de inundação, foram coletadas amostras dessa região, sendo mantidas em laboratório por 10 dias com água do mar. Os resultados mostraram que a abundância total do microfitobentos variou de 4.2 × 108 a 2.9 × 109 organismos L–1, a densidade aumentou em uma ordem de grandeza com a influência da água, tanto na planície hipersalina como nas condições experimentais, um aumento que foi devido às maiores abundâncias de Microcoleus spp. O índice de Shannon (H’) foi mais elevado durante o período de dessecação. Nossos dados sugerem que as mudanças na abundância dos organismos foram devidas ao efeito da água, a dominância dos táxons mais abundantes permaneceu a mesma durante as condições de dessecação e inundação, e possivelmente existe um consórcio entre os microrganismos do tapete microbiano no qual eles ajudam a manter essa dominância.
Descritores: Clima Tropical
Adaptação Fisiológica/fisiologia
Monitoramento Ambiental/métodos
Sedimentos Geológicos
Inundações
Microalgas/fisiologia
-Chuva
Água do Mar
Água
Cloreto de Sódio
Cianobactérias
Responsável: BR1.1 - BIREME



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