The Family Rhodospirillaceae

Reis, Verônica Massena; Souza, Emanuel Maltempi de

doi:10.1007/978-3-642-30197-1_300

Cited by 65 publications

(45 citation statements)

References 287 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The family Rhodospirillaceae, to which OTU002 was assigned, has 34 known genera of Gram-negative microorganisms that present various nutritional strategies [41]. In the phylogenetic tree constructed with related sequences retrieved from GenBank, OTU002 showed similarity with marine bacteria from different habitats, grouping closely with a sequence from a bacterium isolated from a marine biofilm.…”

Section: Discussionmentioning

confidence: 99%

Microbiota of the alien species Paraleucilla magna (Porifera, Calcarea) from the Southwestern Atlantic, and a comparison with that of other calcareous sponges

Lopes

Mágna

Klautau

et al. 2019

Preprint

View full text Add to dashboard Cite

Sponges (Porifera) co-evolved with microorganisms in a well-established symbiotic relationship. Based on this characteristic, sponges can be separated into high microbial abundance (HMA) and low microbial abundance (LMA) species. Paraleucilla magna (Calcarea, Porifera) is an alien species of ecological importance in the Brazilian coastline. Little is known about the composition of its microbiota and that of other calcareous species, especially those inhabiting the Southwest Atlantic. Here, we describe the microbiota of P. magna and compare it to that of other calcareous sponge species for which such data exist. P. magna’s microbiota shows a lower diversity than that of Clathrina clathrus, C. coriacea, Leucosolenia sp., Leuconia sp. and Leucetta antarctica. P. magna microbiota is dominated by two bacterial OTUs of the Alphaproteobacteria class, that could not be classified beyond class (OTU001) and family levels (OTU002; Rhodospirillaceae). The Thaumarcheota was the predominant archaeal phylum in P. magna, with OTUs mainly affiliated to the genus candidatus Nitrosopumilus. The comparison with other calcareous species showed that microbiota composition correlated well with sponge phylogenetic affiliation. Metabolic prediction with PICRUSt software of P. magna bacterial microbiota indicated that membrane transport and carbohydrate, amino acid and energy metabolisms were most abundant while, for the archaeal domain, pathways related to translation, and energy metabolisms were predominant. Predicted metabolic features were compared between the different sponge species and seawater samples, showing that pathways related to cell motility, membrane transport, genetic information processing, xenobiotics metabolism and signal transduction are higher in the former while amino acid and nucleotide metabolism, translation, replication and repair, folding, sorting and degradation and glycan biosynthesis and metabolism are abundant in the latter. This study shows that P. magna’s microbiota is typical of an LMA sponge and that it differs from the microbiota of other calcareous sponges both in its composition and in predicted metabolic pathways.

show abstract

Section: Discussionmentioning

confidence: 99%

Microbiota of the alien species Paraleucilla magna (Porifera, Calcarea) from the Southwestern Atlantic, and a comparison with that of other calcareous sponges

Lopes

Mágna

Klautau

et al. 2019

Preprint

View full text Add to dashboard Cite

show abstract

“…Cyanobacteria are known to have a stable lineage with consistent survival strategy (Marsac and Houmard, 1993); this hints at the reason behind the observation that the distribution for phylotype Synechococcus is close to those of the conservative Trebouxiophyceae and Sediminibacterium. The Rhodospirillaceae and Rhodobacter phylotypes belonged to Alphaproteobacteria, their representatives described as phototrophic bacteria, can be expected to have an intermediate rate of adaptation flexibility (Baldani et al, 2014).…”

Section: Detection Of Power-law Distributions Inmentioning

confidence: 99%

Microevolution processes in Baikal are detected in symbiotic microbiomes of Baikal sponges by the methods of fractal theory

Feranchuk

Potapova

Chernogor

et al. 2018

LFWB

View full text Add to dashboard Cite

In recent years, a large scale ecological crisis has been observed in the Lake Baikal ecosystem. It is clearly shown by several signs, including the mass disease of sponges in the coastal zone. To investigate the causes of the crisis, the composition of symbiotic communities in sponges was investigated in 2015 by sequencing of the 16S rRNA gene in three locations of the lake. The methods of fractal theory were adopted in order to detect a fractal structure in the distribution of the sequencing reads, being considered as fragments of the 16S rRNA gene for individual bacteria within the collected samples. The fractal-like distributions were constructed for the seven most abundant phylotypes, and the observed properties of the distributions reflect microevolution processes within the selected genera and species. The values of the fractal dimension, evaluated for the distributions, are observed to correlate with an anthropogenic load at the place of sample collection, for the Flavobacterium and Synechococcus genera. The sampling sites were also observed to be associated with the properties of the distributions for chloroplasts of Trebouxiophyceae algae, the endosymbiont of Lubomirskia baicalensis sponge.The long-scale time dependency of fractal dimension was also evaluated for the data from temperature detectors in four locations of Lake Baikal. The values of the fractal dimension for fluctuations of temperature are also observed to be associated with an anthropogenic load in the place of measurement. The consistency of both approaches validates the usefulness of fractal-based methods in the interpretation of the experiments designed to study the ecological crisis in Lake Baikal.

show abstract

“…The absence of any photosynthetic apparatus and genes of Calvin cycle was consistent with that of Azospirillum species in contrary to most of the other Rhodospirillaceae members (Wisniewski Dye et al, 2011;Baldani et al, 2014). As E. litoralis dwells in stone biofilms, prima ry production may not be necessary function, as these biofilms are mainly dominated by diatoms and algae that may provide organic car bon for heterotrophic community members.…”

mentioning

confidence: 52%

Draft genome of Elstera litoralis, a freshwater epilithic biofilm associated bacterium from littoral zone of Lake Constance

et al. 2015

View full text Add to dashboard Cite

The Family Rhodospirillaceae

Cited by 65 publications

References 287 publications

Microbiota of the alien species Paraleucilla magna (Porifera, Calcarea) from the Southwestern Atlantic, and a comparison with that of other calcareous sponges

Microbiota of the alien species Paraleucilla magna (Porifera, Calcarea) from the Southwestern Atlantic, and a comparison with that of other calcareous sponges

Microevolution processes in Baikal are detected in symbiotic microbiomes of Baikal sponges by the methods of fractal theory

Draft genome of Elstera litoralis, a freshwater epilithic biofilm associated bacterium from littoral zone of Lake Constance

Contact Info

Product

Resources

About