NDLI: Patterns of biofilm formation in two streams from different bioclimatic regions: analysis of microbial community structure and metabolism

Content Provider	Springer Nature Link
Author	Artigas, Joan Fund, Katharina Kirchen, Silke Morin, Soizic Obst, Ursula Romaní, Anna M. Sabater, S. Schwartz, Thomas
Copyright Year	2012
Abstract	This study evaluates the sequences of biofilm colonization at two stream sites located in different bioclimatic regions (Mediterranean and Central European). Despite of the ecoregional differences, the two selected streams mainly differed by their hydrology and nutrient condition. A range of structural [microbial biomass, nutrient content, extracellular polymeric substances (EPS)-polysaccharide content] and metabolic (extracellular enzyme activities) descriptors were analyzed during the colonization period of 60 days. The succession of bacterial communities was investigated through the 16S rDNA gene analysis and taxonomical identification was used in diatom communities. Differences in algal biomass were not significant between the two stream biofilms, but the bacterial density and aminopeptidase and β-glucosidase activities were higher in the Mediterranean biofilms, probably due to greater coarse particulate organic matter (CPOM) accumulation in the latter. The colonization sequences of algae and bacteria in the biofilms were faster in the Mediterranean stream biofilms and slower and gradual in the Central European stream biofilms. Floods caused disruption in the microbial succession and re-colonization, favouring the re-appearance of early colonizing taxa and increasing the community diversity. Biofilms in the Mediterranean stream had a higher amount of early colonizing species (the diatoms Ulnaria ulna and Karayevia clevei and the β-proteobacteria group), as well as higher polysaccharide development in the extracellular polymeric substances (EPS) matrix. These differences could be an adaptation to the marked hydrological changes characteristic of Mediterranean streams. In contrast, the microbial community complexity gradually increased and nutrients and proteins largely accumulated in the Central European biofilms, reflecting the higher hydrological stability as well as the higher nutrient availability.
Starting Page	83
Ending Page	96
Page Count	14
File Format	PDF
ISSN	00188158
Journal	Hydrobiologia
Volume Number	695
Issue Number	1
e-ISSN	15735117
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-04-27
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Bacteria Diatom Biofilm Central European Mediterranean Stream Ecology Freshwater & Marine Ecology Zoology
Content Type	Text
Resource Type	Article
Subject	Aquatic Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Microbial biofilm structure and organic matter use in mediterranean streams

Small dams decrease leaf litter breakdown rates in Mediterranean mountain streams

Mediterranean-climate streams and rivers: geographically separated but ecologically comparable freshwater systems

Fire as a disturbance in mediterranean climate streams

Seasonal variation in nutrient limitation of microbial biofilms colonizing organic and inorganic substrata in streams

Freshwater biodiversity and conservation in mediterranean climate streams of Chile

Long-term population and community patterns of benthic macroinvertebrates and fishes in Northern California Mediterranean-climate streams

Community structure of fish in lowland streams differ substantially between subtropical and temperate climates

Macroinvertebrate and organic matter export from headwater tributaries of a Central Appalachian stream

Patterns of biofilm formation in two streams from different bioclimatic regions: analysis of microbial community structure and metabolism

Similar Documents

Microbial biofilm structure and organic matter use in mediterranean streams

Small dams decrease leaf litter breakdown rates in Mediterranean mountain streams

Mediterranean-climate streams and rivers: geographically separated but ecologically comparable freshwater systems

Fire as a disturbance in mediterranean climate streams

Seasonal variation in nutrient limitation of microbial biofilms colonizing organic and inorganic substrata in streams

Freshwater biodiversity and conservation in mediterranean climate streams of Chile

Long-term population and community patterns of benthic macroinvertebrates and fishes in Northern California Mediterranean-climate streams

Community structure of fish in lowland streams differ substantially between subtropical and temperate climates

Macroinvertebrate and organic matter export from headwater tributaries of a Central Appalachian stream

Patterns of biofilm formation in two streams from different bioclimatic regions: analysis of microbial community structure and metabolism