Response of aerobic anoxygenic phototrophic bacteria to limitation and availability of organic carbon
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F24%3A00587858" target="_blank" >RIV/61388971:_____/24:00587858 - isvavai.cz</a>
Alternative codes found
RIV/60076658:12310/24:43908438 RIV/60076658:12520/24:43908438
Result on the web
<a href="https://academic.oup.com/femsec/article/100/7/fiae090/7695299?login=true" target="_blank" >https://academic.oup.com/femsec/article/100/7/fiae090/7695299?login=true</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/femsec/fiae090" target="_blank" >10.1093/femsec/fiae090</a>
Alternative languages
Result language
angličtina
Original language name
Response of aerobic anoxygenic phototrophic bacteria to limitation and availability of organic carbon
Original language description
Aerobic anoxygenic phototrophic (AAP) bacteria are an important component of freshwater bacterioplankton. They can support their heterotrophic metabolism with energy from light, enhancing their growth efficiency. Based on results from cultures, it was hypothesized that photoheterotrophy provides an advantage under carbon limitation and facilitates access to recalcitrant or low-energy carbon sources. However, verification of these hypotheses for natural AAP communities has been lacking. Here, we conducted whole community manipulation experiments and compared the growth of AAP bacteria under carbon limited and with recalcitrant or low-energy carbon sources under dark and light (near-infrared light, lambda > 800 nm) conditions to elucidate how they profit from photoheterotrophy. We found that AAP bacteria induce photoheterotrophic metabolism under carbon limitation, but they overcompete heterotrophic bacteria when carbon is available. This effect seems to be driven by physiological responses rather than changes at the community level. Interestingly, recalcitrant (lignin) or low-energy (acetate) carbon sources inhibited the growth of AAP bacteria, especially in light. This unexpected observation may have ecosystem-level consequences as lake browning continues. In general, our findings contribute to the understanding of the dynamics of AAP bacteria in pelagic environments.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10606 - Microbiology
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
FEMS Microbiology Ecology
ISSN
0168-6496
e-ISSN
1574-6941
Volume of the periodical
100
Issue of the periodical within the volume
7
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
fiae090
UT code for WoS article
001264099800001
EID of the result in the Scopus database
2-s2.0-85197973976