The Limnohabitans genus harbors generalistic and opportunistic subtypes: evidence from spatiotemporal succession in a canyon-shaped reservoir.

The Limnohabitans genus harbors generalistic and opportunistic subtypes: evidence from spatiotemporal succession in a canyon-shaped reservoir. Appl Environ Microbiol. 2017 Aug 25;: Authors: Jezberová J, Jezbera J, Znachor P, Nedoma J, Kasalický V, Šimek K Abstract We studied the diversity of Limnohabitans using Reverse Line Blot Hybridization with Limnohabitans lineage-specific probes in the freshwater canyon-shaped Římov Reservoir (CZ). To examine the succession of distinct lineages we performed two studies: (i) an intensive spring sampling program at the lacustrine part of the Římov Reservoir (from ice melt through a phytoplankton peak to the clear water phase), and (ii) a seasonal study (April to November) when the occurrence of distinct Limnohabitans lineages was related to the inherent longitudinal heterogeneity of the reservoir. Significant spatiotemporal changes in the composition of distinct Limnohabitans lineages allowed for the identification of 'generalists' that were always present throughout the whole season as well as 'specialists' that appeared in the reservoir only for limited periods of time or irregularly. Our results indicate that some phytoplankton groups, such as cryptophytes or cyanobacteria, and zooplankton composition were the major factors modulating the distribution and dynamics of distinct Limnohabitans lineages. The highest Limnohabitans diversity was observed during the spring algal bloom, whereas ...
Source: Applied and Environmental Microbiology - Category: Microbiology Authors: Tags: Appl Environ Microbiol Source Type: research