Responses of abundant and rare bacterioplankton to temporal change in a subtropical urban reservoir

Author(s): Pascaline Nyirabuhoro; Xiaofei Gao; Jean Claude Ndayishimiye; Peng Xiao; Yuanyuan Mo; Hossein Ganjidoust; Jun Yang*

Category: Environmental Sciences
TitleFirst AuthorPublication Year
Responses Of Abundant And Rare Bacterioplankton To Temporal Change In A Subtropical Urban Reservoir Pascaline Nyirabuhoro 2021

First Author Pascaline Nyirabuhoro
Abstract

Investigation of bacterial community dynamics across different time scales is important for understanding how environmental conditions drive community change over time. Bacterioplankton from the surface waters of a subtropical urban reservoir in southeast China were analyzed through high-frequency sampling over 13 months to compare patterns and ecological processes between short (0‒8 weeks), medium (9‒24 weeks) and long (25‒53 weeks) time intervals. We classified the bacterial community into different subcommunities: abundant taxa (AT); conditionally rare taxa (CRT); rare taxa (RT). CRT contributed > 65% of the alpha-diversity, and temporal change of beta-diversities was more pronounced for AT and CRT than RT. The bacterial community exhibited a directional change in the short- and medium-time intervals and a convergent dynamic during the long-time interval due to a seasonal cycle. Cyanobacteria exhibited a strong succession pattern than other phyla. CRT accounted for > 76% of the network nodes in three stations. The bacteria-environment relationship and deterministic processes were stronger for large sample size at station G (n = 116) than small sample size at stations C (n = 12) and L (n = 22). These findings suggest that a high-frequency sampling approach can provide a better understanding on the time scales at which bacterioplankton can change fast between being abundant or rare, thus providing the facts about environmental factors driving microbial community dynamics.

Authors Pascaline Nyirabuhoro; Xiaofei Gao; Jean Claude Ndayishimiye; Peng Xiao; Yuanyuan Mo; Hossein Ganjidoust; Jun Yang*
Page Numberfiab036
Volume:...
Pub Year:2021
ISBN:... ...
Pub Name:FEMS Microbiology Ecology
The full text link: https://doi.org/10.1093/femsec/fiab036
Citation:

Nyirabuhoro P, Gao XF, Ndayishimiye JC, Xiao P, Mo YY, Ganjidoust H, Yang J*. 2021. Responses of abundant and rare bacterioplankton to temporal change in a subtropical urban reservoir. FEMS Microbiology Ecology, fiab036, DOI: 10.1093/femsec/fiab036



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