Contribution of Aerobic Photoheterotrophic Bacteria to the Carbon Cycle in the Ocean

  title={Contribution of Aerobic Photoheterotrophic Bacteria to the Carbon Cycle in the Ocean},
  author={Zbigniew S. Kolber and F. Gerald and Plumley and Andrew S. Lang and J. Thomas Beatty and Robert Eugene Blankenship and Cindy L. VanDover and Costantino Vetriani and Michal Kobl{\'i}{\vz}ek and Christoph Rathgeber and Paul G. Falkowski},
  pages={2492 - 2495}
The vertical distribution of bacteriochlorophylla, the numbers of infrared fluorescent cells, and the variable fluorescence signal at 880 nanometers wavelength, all indicate that photosynthetically competent anoxygenic phototrophic bacteria are abundant in the upper open ocean and comprise at least 11% of the total microbial community. These organisms are facultative photoheterotrophs, metabolizing organic carbon when available, but are capable of photosynthetic light utilization when organic… 

Ecology of aerobic anoxygenic phototrophs in aquatic environments.

  • M. Koblížek
  • Environmental Science, Biology
    FEMS microbiology reviews
  • 2015
This chapter summarizes the current knowledge of the ecology of AAP bacteria in aquatic environments, implying their specific role in the microbial loop.

Photosynthetic Competence of the Marine Aerobic Anoxygenic Phototrophic Bacterium Roseobacter sp. under Organic Substrate Limitation

Results indicate that spheroidenone, which can absorb green light, may play an important role in their photosynthesis as a light-harvesting antenna pigment, and the photosynthetic competence of the Roseobacter strain can increase in an organic substrate-deficient environment.

HORIZONS Photoheterotrophy in marine prokaryotes

The factors listed above require consideration when solar energy input into metabolism of oceanic photoheterotrophic prokaryotes is experimentally quantified and numerically modelled.

Resourceful heterotrophs make the most of light in the coastal ocean

In coastal systems, these mixed metabolic strategies have implications for how efficiently organic carbon is retained in the marine food web and how climatically important gases are exchanged between the ocean and the atmosphere.

Photoheterotrophy in marine prokaryotes

The factors listed above require consideration when solar energy input into metabolism of oceanic photoheterotrophic prokaryotes is experimentally quantified and numerically modelled.

Ecology of aerobic anoxygenic phototrophic bacteria along an oligotrophic gradient in the Mediterranean Sea

Concentrations of bacteriochlorophyll-a and AAP bacterial abundance decreased and quota of AAP bacterial communities was significantly higher in the eastern basin than in the western basin, suggesting that reliance on phototrophy varied along the oligotrophic gradient and that nutrient and or carbon limitation favors BChl-a synthesis.

Aerobic Phototrophic Bacteria: New Evidence for the Diversity, Ecological Importance and Applied Potential of this Previously Overlooked Group

This minireview focuses on recent discoveries regarding taxonomy, ecology and physiology, as well as the latest advances in the understanding of aerobic phototrophic bacteria and their photosynthetic apparatus and its genetic regulation.

Bacteriochlorophyll a in the ocean: Is anoxygenic bacterial photosynthesis important?

The data suggest that the contribution of BacChl a driven anoxygenic bacterial photosynthesis to energy production in coastal eutrophic and offshore oligotrophic areas of the California current system is small, substantially smaller than the suggested global average of 5 to 10%.

Photoheterotrophy by aerobic anoxygenic bacteria modulates carbon fluxes in a freshwater lake

Lakes are a significant component of the global carbon cycle. Respiration exceeds net primary production in most freshwater lakes, making them a source of CO2 to the atmosphere. Driven by

Significant roles of bacteriochlorophylla supplemental to chlorophylla in the ocean

Bacteriochlorophylla-based phototrophy has an important role supplemental to Chla-based photosynthesis in the ocean's carbon cycle and would be critical for a marine region to be a sink or a source of atmospheric CO2.



Bacterial photosynthesis in surface waters of the open ocean

The first biophysical evidence demonstrating that aerobic bacterial photosynthesis is widespread is reported, indicating that these organisms account for 2–5% of the photosynthetic electron transport in the upper ocean.

9 Analysis of Bacteriochlorophylls

  • J. Oelze
  • Biology, Environmental Science
  • 1985

Aerobic Anoxygenic Phototrophic Bacteria

Aerobic anoxygenic phototrophic bacteria are classified in two marine and six freshwater genera and phylogenetically belong to the α-1, α-3, and α-4 subclasses of the class Proteobacteria.

Distribution and Physiology of Aerobic Bacteria Containing Bacteriochlorophyll a on the East and West Coasts of Australia

Aerobic heterotrophic bacteria containing bacteriochlorophyll were isolated from specimens from a wide variety of marine environments on the west and east coasts of Australia and some strains showed denitrifying activity, and the optimal salinity for bacterial growth varied between strains.

Citromicrobium bathyomarinum, a Novel Aerobic Bacterium Isolated from Deep-Sea Hydrothermal Vent Plume Waters That Contains Photosynthetic Pigment-Protein Complexes

A new aerobic bacterial strain (JF-1) that contains photosynthetic pigment-protein complexes and which was recently isolated from black smoker plume waters of the Juan de Fuca Ridge is characterized, consistent with an oligotrophic adaptation to varied environmental conditions thought to exist around deep-sea hydrothermal vents.

Effects of incident light levels on photosynthetic membrane polypeptide composition and assembly in Rhodopseudomonas sphaeroides

No significant differences in rates of turnover of these polypeptides were detected under the varying incident light levels as measured in pulse-chase radioactive labeling experiments.

Photo-induced cyclic electron transfer involving cytochrome bc1 complex and reaction center in the obligate aerobic phototroph Roseobacter denitrificans.

Participation of the bc1 complex in a cyclic electron transfer chain has been demonstrated by detection of flash-induced reduction of cytochrome b561, stimulated by antimycin and inhibited by myxothiazol.

Phylogenetic positions of novel aerobic, bacteriochlorophyll a-containing bacteria and description of Roseococcus thiosulfatophilus gen. nov., sp. nov., Erythromicrobium ramosum gen. nov., sp. nov., and Erythrobacter litoralis sp. nov.

We analyzed the 16S ribosomal DNAs of three obligately aerobic, bacteriochlorophyll a-containing bacteria, "Roseococcus thiosulfatophilus," "Erythromicrobium ramosum," and new isolate T4T (T = type

Heating rate within the upper ocean in relation to its bio-optical state

Abstract Solar radiation absorption and local heating within the upper layers of the open ocean are strongly influenced by the abundance of phytoplankton as depicted by the chlorophyll concentration.

The use of DAPI for identifying and counting aquatic microflora1

Use of DAPI improved visualization and counting of <1-µm bacteria and blue-green algae in seston-rich samples and extended sample storage to at least 24 weeks.