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| Sousa,José Américo de; Silva-Souza,Ângela Teresa. |
| A bacteriological study was conducted on fish and water from Congonhas River, Sertaneja (22º58 S; 50º58 W), Paraná State, Brazil. From 44% of the analysed fish, bacteria belonging to Pseudomonas, Acinetobacter, Aeromonas, Enterobacteriaceae, Micrococcus, Bacillus and Lactobacillus were isolated. The group most frequently isolated from fish was Aeromonas. In the water, the bacterial groups detected were Pseudomonas, Acinetobacter, Aeromonas, Enterobacteriaceae, Bacillus and Flavobacterium, from which Flavobacterium and Acinetobacter were the most abundant. The numbers of Colony Forming Units per millilitre of water varied from 3.1x10² to 1.0 x 10³. Although a clear pattern was not detected in the susceptibilities/resistances of the isolated strains to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacterial community; Fish; Congonhas River; Aeromonas; Pseudomonas; Resistance. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132001000400007 |
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| Mondeguer, Florence; Lepinay, Alexandra; Capiaux, Hervé; Turpin, Vincent; Baron, Regis; Hess, Philipp; Lebeau, Thierry; Boug,. |
| The marine diatom Haslea ostrearia [1] produces a water-soluble blue-pigment named marennine [2] of economic interest. But the lack of knowledge of the ecological conditions, under which this microalga develops in its natural ecosystem, more especially bacteria H. ostrearia interactions, prevents any optimization of its culture in well-controlled conditions. The structure of the bacterial community was analyzed by PCR-TTGE before and after the isolation of H. ostrearia cells recovered from 4 localities, to distinguish the relative part of the biotope and the biocenose and eventually to describe the temporal dynamic of the structure of the bacterial community at two time-scales. The differences in genetic fingerprints, more especially high between two H.... |
| Tipo: Text |
Palavras-chave: Haslea ostrearia; Marine diatom; Co-culture microalgae; Bacterial community; PCR-TTGE; High Resolution Mass Spectrometry; Untargeted metabolomics. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00342/45367/44862.pdf |
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| Yang,Seung Hak; Lim,Joung Soo; Khan,Modabber Ahmed; Kim,Bong Soo; Choi,Dong Yoon; Lee,Eun Young; Ahn,Hee Kwon. |
| The leachate generated by the decomposition of animal carcass has been implicated as an environmental contaminant surrounding the burial site. High-throughput nucleotide sequencing was conducted to investigate the bacterial communities in leachates from the decomposition of pig carcasses. We acquired 51,230 reads from six different samples (1, 2, 3, 4, 6 and 14 week-old carcasses) and found that sequences representing the phylum Firmicutes predominated. The diversity of bacterial 16S rRNA gene sequences in the leachate was the highest at 6 weeks, in contrast to those at 2 and 14 weeks. The relative abundance of Firmicutes was reduced, while the proportion of Bacteroidetes and Proteobacteria increased from 3–6 weeks. The representation of phyla was restored... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pig; Decomposition; Leachate; Bacterial community; Pyrosequencing. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000300373 |
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| Aires, Tania; Moalic, Yann; Serrao, Ester; Arnaud-haond, Sophie. |
| The siphonous algae of the Caulerpa genus harbor internal microbial communities hypothesized to play important roles in development, defense and metabolic activities of the host. Here, we characterize the endophytic bacterial community of four Caulerpa taxa in the Mediterranean Sea, through 16S rRNA amplicon sequencing. Results reveal a striking alpha diversity of the bacterial communities, similar to levels found in sponges and coral holobionts. These comprise (1) a very small core community shared across all hosts (< 1% of the total community), (2) a variable portion (ca. 25%) shared by some Caulerpa taxa but not by all, which might represent environmentally acquired bacteria and (3) a large (> 70%) species-specific fraction of the community,... |
| Tipo: Text |
Palavras-chave: Endophytic bacteria; Bacterial community; Cooccurrence network; Modularity; Coevolution. |
| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00277/38800/37699.pdf |
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| Seychelles, Laurent H.; Doiron, Kim; Audet, Celine; Tremblay, Rejean; Pernet, Fabrice; Lemarchand, Karine. |
| Rotifers (Brachionus plicatilis), commonly used at first feeding in commercial fish hatcheries, carry a large bacteria load. Because they are relatively poor in essential fatty acids, it is common practice to enrich them with fatty acids, including arachidonic acid (AA). This study aims to determine whether prey enrichment with AA may act as a prebiotic and modify the microbial community composition either in AA-enriched rotifer cultures or in larval-rearing water using winter flounder (Pseudopleuronectes americanus) as a larval fish model. AA enrichment modified the bacterial community composition in both the rotifer culture tanks and the larval-rearing tanks. We observed an increase in the number of cultivable bacteria on TCBS (thiosulfate-citrate-bile... |
| Tipo: Text |
Palavras-chave: Communauté bactérienne; Rotifères; Enrichissement en acide arachidonique; Vibrio sp.; Prébiotique; Bacterial community; Rotifers; Arachidonic acid enrichment; Vibrio sp.; Prebiotic. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00137/24778/25189.pdf |
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| Mondeguer, Florence; Lepinay, Alexandra; Capiaux, Hervé; Turpin, Vincent; Lebeau, Thierry. |
| The marine diatom Haslea ostrearia [1] produces a water-soluble blue-pigment named marennine [2] of economic interest. But the lack of knowledge of the ecological conditions, under which this microalga develops in its natural ecosystem, more especially bacteria H. ostrearia interactions, prevents any optimization of its culture in well-controlled conditions. The structure of the bacterial community was analyzed by PCR-TTGE before and after the isolation of H. ostrearia cells recovered from 4 localities, to distinguish the relative part of the biotope and the biocenose and eventually to describe the temporal dynamic of the structure of the bacterial community at two time-scales. The differences in genetic fingerprints, more especially high between two H.... |
| Tipo: Text |
Palavras-chave: Haslea ostrearia; Marine diatom; Co-culture microalgae; Bacterial community; TTGE; High Resolution Mass Spectrometry; Untargeted metabolomics. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00342/45368/44863.pdf |
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