English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Effect of salinity changes on the bacterial diversity, photosynthesis and oxygen consumption of cyanobacterial mats from an intertidal flat of the Arabian Gulf

Abed, R. M. M., Kohls, K., & de Beer, D. (2007). Effect of salinity changes on the bacterial diversity, photosynthesis and oxygen consumption of cyanobacterial mats from an intertidal flat of the Arabian Gulf. Environmental Microbiology, 9(6), 1384-1392.

Item is

Files

show Files
hide Files
:
Abed7.pdf (Publisher version), 329KB
 
File Permalink:
-
Name:
Abed7.pdf
Description:
-
OA-Status:
Visibility:
Restricted ( Max Planck Society (every institute); )
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Abed, R. M. M.1, Author           
Kohls, K.1, Author           
de Beer, D.1, Author           
Affiliations:
1Permanent Research Group Microsensor, Max Planck Institute for Marine Microbiology, Max Planck Society, ou_2481711              

Content

show
hide
Free keywords: -
 Abstract: The effects of salinity fluctuation on bacterial diversity, rates of gross photosynthesis (GP) and oxygen consumption in the light (OCL) and in the dark (OCD) were investigated in three submerged cyanobacterial mats from a transect on an intertidal flat. The transect ran 1 km inland from the low water mark along an increasingly extreme habitat with respect to salinity. The response of GP, OCL and OCD in each sample to various salinities (65 per thousand, 100 per thousand, 150 per thousand and 200 per thousand) were compared. The obtained sequences and the number of unique operational taxonomic units showed clear differences in the mats' bacterial composition. While cyanobacteria decreased from the lower to the upper tidal mat, other bacterial groups such as Chloroflexus and Cytophaga/Flavobacteria/Bacteriodetes showed an opposite pattern with the highest dominance in the middle and upper tidal mats respectively. Gross photosynthesis and OCL at the ambient salinities of the mats decreased from the lower to the upper tidal zone. All mats, regardless of their tidal location, exhibited a decrease in areal GP, OCL and OCD rates at salinities > 100 per thousand. The extent of inhibition of these processes at higher salinities suggests an increase in salt adaptation of the mats microorganisms with distance from the low water line. We conclude that the resilience of microbial mats towards different salinity regimes on intertidal flats is accompanied by adjustment of the diversity and function of their microbial communities.

Details

show
hide
Language(s): eng - English
 Dates: 2007-02-282007-06
 Publication Status: Issued
 Pages: 9
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 344927
ISI: 000246454100004
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Environmental Microbiology
  Other : Environmental Microbiology and Environmental Microbiology Reports
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Oxford, England : Blackwell Science
Pages: - Volume / Issue: 9 (6) Sequence Number: - Start / End Page: 1384 - 1392 Identifier: ISSN: 1462-2912
CoNE: https://pure.mpg.de/cone/journals/resource/959328105031