Seasonal and spatial distribution of Bacterioplankton in a fluvial-lagunar system of a tropical region: density, biomass, cellular volume and morphologic variation

Araújo, Magnólia Fernandes Florêncio de; Godinho, Mirna Januária Leal

doi:10.1590/s1516-89132008000100024

Cited by 13 publications

(12 citation statements)

References 38 publications

(32 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These authors used the equation proposed by Simon and Azam (46) to calculate biomass, while in this study the Thiel-Nielsen and Søndergaard (50) factor was used. Converting the values, the mean found for this study gets closer to the one found in Araújo and Godinho (3), 0.47±0.30 mgC l -1 . Farjalla et al (23), using the conversion factor proposed by Fry (1988), approximately 3 times higher than the one used in this study, found values between 0.45 and 14.32 mgC l -1 in coastal lagoons (Rio de Janeiro, Brazil), while the mean value of this study calculated by this factor is 1.69±1.09 mgC l -1 .…”

Section: Discussionsupporting

confidence: 88%

“…Regarding cell biovolume, Araújo and Godinho (3) cited many studies made in continental waters with values from 0.05 to 0.53 μm 3 , range in which the values from this study fit.…”

Section: Discussionsupporting

confidence: 65%

“…Araújo and Godinho (3) found predominance of rod shaped bacteria in almost all their sampling, with the second most abundant being coccus. Farjalla et al (23) found predominance of rods in the lagoons with higher salinity, representing up to 90% of density.…”

Section: Discussionmentioning

confidence: 98%

“…Araújo and Godinho (3) found in Jequiti lagoon (Rio Grande do Norte, Brazil) biomass values of 0.27 mgC l -1 for maximum densities of 50 10 9 cel l -1 . These authors used the equation proposed by Simon and Azam (46) to calculate biomass, while in this study the Thiel-Nielsen and Søndergaard (50) factor was used.…”

Section: Discussionmentioning

confidence: 99%

See 3 more Smart Citations

Bacterioplankton features and its relations with doc characteristics and other limnological variables in Paraná river floodplain environments (PR/MS-Brazil)

Teixeira¹,

Santana²,

Azevedo

et al. 2011

Braz. J. Microbiol.

View full text Add to dashboard Cite

Since the introduction of the Microbial Loop concept, many studies aimed to explain the role of bacterioplankton and dissolved organic carbon (DOC) in aquatic ecosystems. Paraná River floodplain system is a very complex environment where these subjects were little explored. The aim of this work was to characterize bacterial community in terms of density, biomass and biovolume in some water bodies of this floodplain and to verify its temporal variation and its relation with some limnological variables, including some indicators of DOC quality, obtained through Ultraviolet-visible (UV-VIS) and fluorescence spectroscopic analysis. Bacterial density, biomass and biovolume are similar to those from other freshwater environments and both density and biomass were higher in the period with less rain. The limnological and spectroscopic features that showed any relation with bacterioplankton were the concentrations of N-NH4 and P-PO4, water transparency, and some indicators of DOC quality and origin. The analysis of these relations showed a possible competition between bacterioplankton and phytoplankton for inorganic nutrients and that the DOC used by bacterioplankton is labile and probably from aquatic macrophytes.

show abstract

Section: Discussionsupporting

confidence: 88%

“…Regarding cell biovolume, Araújo and Godinho (3) cited many studies made in continental waters with values from 0.05 to 0.53 μm 3 , range in which the values from this study fit.…”

Section: Discussionsupporting

confidence: 65%

Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Bacterioplankton features and its relations with doc characteristics and other limnological variables in Paraná river floodplain environments (PR/MS-Brazil)

Teixeira¹,

Santana²,

Azevedo

et al. 2011

Braz. J. Microbiol.

View full text Add to dashboard Cite

show abstract

“…Tropical reservoirs are in many cases highly productive aquatic biotopes due to the input of organic materials from land and elevated internal primary production which, in addition to a strong capacity for mineralization, supplies the system continuously with inorganic nutrients (CunhaSantino and Bianchini Jr., 2003;Araújo and Godinho, 2008). Aggregates are considered a very important fraction of the particulate organic matter in these aquatic environments and are in general, heavily colonized by bacteria, becoming a site of intense activity of hydrolytic enzymes.…”

Section: Introductionmentioning

confidence: 99%

Glycolytic activities in size-fractionated water samples: emphasis on rhamnosidase, arabinosidase and fucosidase activities

Colombo-Corbi

Dellamano-Oliveira

Vieira

2011

Braz. arch. biol. technol.

View full text Add to dashboard Cite

show abstract

Spatial and temporal dynamics of bacterioplankton community composition in a subtropical dammed karst river of southwestern China

Shi

Song

et al. 2019

MicrobiologyOpen

View full text Add to dashboard Cite

River damming influences the hydro‐physicochemical variations in karst water; however, such disruption in bacterioplankton communities has seldom been studied. Here, three sampling sites (city‐river section, reservoir area, and outflow area) of the Ca2+–Mg2+–HCO3−–SO42− water type in the dammed Liu River were selected to investigate the bacterioplankton community composition as identified by high‐throughput 16S rRNA gene sequencing. In the dammed Liu River, thermal regimes have been altered, which has resulted in considerable spatial‐temporal differences in total dissolved solids (TDSs), oxidation‐reduction potential (Eh), dissolved oxygen (DO), and pH and in a different microenvironment for bacterioplankton. Among the dominant bacterioplankton phyla, Proteobacteria, Actinobacteria, Bacteroidetes, and Cyanobacteria account for 38.99%–87.24%, 3.75%–36.55%, 4.77%–38.90%, and 0%–14.44% of the total reads (mean relative frequency), respectively. Bacterioplankton communities are dominated by Brevundimonas, Novosphingobium, Zymomonas, the Actinobacteria hgcIclade, the CL500‐29 marine group, Sediminibacterium, Flavobacterium, Pseudarcicella, Cloacibacterium, and Prochlorococcus. Their abundances covary with spatial‐temporal variations in hydro‐physicochemical factors, as also demonstrated by beta diversity analyses. In addition, temperature plays a pivotal role in maintaining bacterioplankton biodiversity and hydro‐physicochemical variations. This result also highlights the concept that ecological niches for aquatic bacteria in dammed karst rivers do not accidentally occur but are the result of a suite of environmental forces. In addition, bacterioplankton can alter the aquatic carbon/nitrogen cycle and contribute to karst river metabolism.

show abstract

Seasonal and spatial distribution of Bacterioplankton in a fluvial-lagunar system of a tropical region: density, biomass, cellular volume and morphologic variation

Cited by 13 publications

References 38 publications

Bacterioplankton features and its relations with doc characteristics and other limnological variables in Paraná river floodplain environments (PR/MS-Brazil)

Bacterioplankton features and its relations with doc characteristics and other limnological variables in Paraná river floodplain environments (PR/MS-Brazil)

Glycolytic activities in size-fractionated water samples: emphasis on rhamnosidase, arabinosidase and fucosidase activities

Spatial and temporal dynamics of bacterioplankton community composition in a subtropical dammed karst river of southwestern China

Contact Info

Product

Resources

About