Functional sustainability of nutrient accumulation by periphytic biofilm under temperature fluctuations

Sun, Rui, Xu, Ying, Wu, Yonghong, Tang, Jun, Esquivel-Elizondo, Sofia, Kerr, Philip, Staddon, Philip L. ORCID: 0000-0002-7968-3179 and Liu, Junzhuo ORCID: 0000-0001-8349-3127 (2019) Functional sustainability of nutrient accumulation by periphytic biofilm under temperature fluctuations. Environmental Technology. ISSN 0959-3330

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Abstract

Temperature can fluctuate widely between different seasons, and this may greatly impact many biological process. However, little is known about its influence on the functioning of benthic microbial communities. Here we investigated the nutrient accumulation capability of periphytic biofilm under temperature fluctuations (17-35 °C). Periphytic biofilm maintained the same nutrient accumulation capacity after experiencing the “warming-hot-cooling” temperature fluctuation under both lab and outdoor conditions as those without temperature disturbance. In response to temperature increase, both community composition and species richness changed greatly and the increase in biodiversity was identified as being the underlying mechanism boosting the sustainable function in nutrient accumulation, indicating zero net effects of community changes. These findings provide insights into the underlying mechanisms of how benthic microbial communities adapt to temperature fluctuations to maintain nutrient accumulation capacity and elucidate that periphytic biofilm plays important roles in influencing nutrient cycling in aquatic ecosystems under temperature changes such as seasonal fluctuations.

Item Type: Article
Article Type: Article
Uncontrolled Keywords: Periphytic biofilm, functional redundancy, nutrient accumulation, community structure, temperature fluctuation
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Q Science > Q Science (General)
Divisions: Schools and Research Institutes > Countryside and Community Research Institute
Research Priority Areas: Environmental Dynamics & Governance
Depositing User: Bethany Leake
Date Deposited: 23 Oct 2019 09:36
Last Modified: 23 Oct 2019 09:45
URI: http://eprints.glos.ac.uk/id/eprint/7392

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