Patterns of Change in Metabolic Capabilities of Sediment Microbial Communities in River and Lake Ecosystems
Joint Authors
Oest, Adam
Alsaffar, Ali
Fenner, Mitchell
Azzopardi, Dominic
Tiquia-Arashiro, Sonia M.
Source
International Journal of Microbiology
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-05-27
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
Information on the biodegradation potential of lake and river microbial communities is essential for watershed management.
The water draining into the lake ecosystems often carries a significant amount of suspended sediments, which are transported by rivers and streams from the local drainage basin.
The organic carbon processing in the sediments is executed by heterotrophic microbial communities, whose activities may vary spatially and temporally.
Thus, to capture and apprehend some of these variabilities in the sediments, we sampled six sites: three from the Saint Clair River (SC1, SC2, and SC3) and three from Lake Saint Clair in the spring, summer, fall, and winter of 2016.
Here, we investigated the shifts in metabolic profiles of sediment microbial communities, along Saint Clair River and Lake Saint Clair using Biolog EcoPlates, which test for the oxidation of 31 carbon sources.
The number of utilized substrates was generally higher in the river sediments (upstream) than in the lake sediments (downstream), suggesting a shift in metabolic activities among microbial assemblages.
Seasonal and site-specific differences were also found in the numbers of utilized substrates, which were similar in the summer and fall, and spring and winter.
The sediment microbial communities in the summer and fall showed more versatile substrate utilization patterns than spring and winter communities.
The functional fingerprint analyses clearly distinguish the sediment microbial communities from the lake sites (downstream more polluted sites), which showed a potential capacity to use more complex carbon substrates such as polymers.
This study establishes a close linkage between physical and chemical properties (temperature and organic matter content) of lake and river sediments and associated microbial functional activities.
American Psychological Association (APA)
Oest, Adam& Alsaffar, Ali& Fenner, Mitchell& Azzopardi, Dominic& Tiquia-Arashiro, Sonia M.. 2018. Patterns of Change in Metabolic Capabilities of Sediment Microbial Communities in River and Lake Ecosystems. International Journal of Microbiology،Vol. 2018, no. 2018, pp.1-15.
https://search.emarefa.net/detail/BIM-1173368
Modern Language Association (MLA)
Oest, Adam…[et al.]. Patterns of Change in Metabolic Capabilities of Sediment Microbial Communities in River and Lake Ecosystems. International Journal of Microbiology No. 2018 (2018), pp.1-15.
https://search.emarefa.net/detail/BIM-1173368
American Medical Association (AMA)
Oest, Adam& Alsaffar, Ali& Fenner, Mitchell& Azzopardi, Dominic& Tiquia-Arashiro, Sonia M.. Patterns of Change in Metabolic Capabilities of Sediment Microbial Communities in River and Lake Ecosystems. International Journal of Microbiology. 2018. Vol. 2018, no. 2018, pp.1-15.
https://search.emarefa.net/detail/BIM-1173368
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1173368