Seasonal dynamics of aerobic anoxygenic phototrophs in freshwater lake Vlkov

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F19%3A00517934" target="_blank" >RIV/61388971:_____/19:00517934 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007%2Fs12223-019-00735-x" target="_blank" >https://link.springer.com/article/10.1007%2Fs12223-019-00735-x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s12223-019-00735-x" target="_blank" >10.1007/s12223-019-00735-x</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Seasonal dynamics of aerobic anoxygenic phototrophs in freshwater lake Vlkov

Popis výsledku v původním jazyce

Aerobic anoxygenic phototrophic (AAP) bacteria are a common component of freshwater microbial communities. They harvest light energy using bacteriochlorophyll a-containing reaction centers to supplement their predominantly heterotrophic metabolism. We used epifluorescence microscopy, HPLC, and infrared fluorometry to examine the dynamics of AAP bacteria in the mesotrophic lake Vlkov during the seasonal cycle. The mortality of AAP bacteria was estimated from diel changes of bacteriochlorophyll a fluorescence. The AAP abundance correlated with water temperature and DOC concentration. Its maximum was registered during late summer, when AAP bacteria made up 20% of total bacteria. The novel element of this study is the seasonal measurements of AAP mortality rates. The rates ranged between 1.15 and 4.56 per day with the maxima registered in early summer coinciding with the peak of primary production, which documents that AAP bacteria are a highly active component of freshwater microbial loop.

Název v anglickém jazyce

Seasonal dynamics of aerobic anoxygenic phototrophs in freshwater lake Vlkov

Popis výsledku anglicky

Aerobic anoxygenic phototrophic (AAP) bacteria are a common component of freshwater microbial communities. They harvest light energy using bacteriochlorophyll a-containing reaction centers to supplement their predominantly heterotrophic metabolism. We used epifluorescence microscopy, HPLC, and infrared fluorometry to examine the dynamics of AAP bacteria in the mesotrophic lake Vlkov during the seasonal cycle. The mortality of AAP bacteria was estimated from diel changes of bacteriochlorophyll a fluorescence. The AAP abundance correlated with water temperature and DOC concentration. Its maximum was registered during late summer, when AAP bacteria made up 20% of total bacteria. The novel element of this study is the seasonal measurements of AAP mortality rates. The rates ranged between 1.15 and 4.56 per day with the maxima registered in early summer coinciding with the peak of primary production, which documents that AAP bacteria are a highly active component of freshwater microbial loop.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10606 - Microbiology

Projekt

<a href="/cs/project/LO1416" target="_blank" >LO1416: Algatech plus</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Folia Microbiologica

ISSN

0015-5632

e-ISSN

—

Svazek periodika

64

Číslo periodika v rámci svazku

5 SI

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

705-710

Kód UT WoS článku

000494388300001

EID výsledku v databázi Scopus

2-s2.0-85069839129