Seasonal changes in the bacterial community structure of three eutrophicated urban lakes in Mexico city, with emphasis on Microcystis spp.

Are Bacterio- and Phytoplankton Community Compositions Related in Lakes Differing in Their Cyanobacteria Contribution and Physico-Chemical Properties?

“…We initially assumed that the bacteria and phytoplankton community composition might be closely related across the lakes and that there are correlations between invasive cyanobacteria and heterotrophic bacteria assemblages. Our data generally showed that bacteria communities differed between lakes dominated by cyano- high chlorophyll-a and total biomass complies with the results presented by Pineda-Mendoza et al [18], who reported significant negative influence of high phytoplankton biomass dominated by Microcystis spp. on the richness and diversity values of heterotrophic bacteria.…”

“…Despite this, abiotic factors such as water depth and Secchi depth had some impact on the structure of bacteria community in CyanoMinorLakes. The impact of high chlorophyll-a and total biomass complies with the results presented by Pineda-Mendoza et al [18], who reported significant negative influence of high phytoplankton biomass dominated by Microcystis spp. on the richness and diversity values of heterotrophic bacteria.…”

“…The documented domination of Proteobacteria and Actinobacteria is in line with findings from other studies carried out in Poland [37] as well as in urban lakes in Mexicoa geographically remote region [18]. Additionally, the occurrence of Proteobacteria and Actinobacteria as dominant groups in lakes has been frequently associated with cyanobacterial blooms [38].…”

“…Furthermore, several reports also appear regarding the impact of trophic status on bacterial community composition. Such relations between BCC and trophic status were reported by Pineda-Mendoza et al [18]. They documented that under highly eutrophic conditions a reduced number of species can exist, making communities less diverse, which results in the dominance of only few major taxa.…”

“…Much less is known about the entire lake bacterial community composition (BCC). However, the development of new molecular methods has made way for research on bacterial communities while the number of studies on bacterioplankton diversity in both local and regional scales has increased in recent years [15][16][17][18]. Bacterioplankton community compositions have been related to various environmental drivers including interactions with phytoplankton [15,19], nutrient availability [20,21] and physical disturbances [22].…”