Factors used to calculate energy gained from phototrophy for PRP [proteorhodopsin (PR)-based phototrophic] bacteria and AAP [aerobic anoxygenic phototrophic] bacteria in a coastal ocean

Range Table - link
Organism bacteria
Reference Kirchman DL, Hanson TE. Bioenergetics of photoheterotrophic bacteria in the oceans. Environ Microbiol Rep. 2013 Apr5(2):188-99. doi: 10.1111/j.1758-2229.2012.00367.x. p.190 table 1PubMed ID23584962
Primary Source MacKenzie, T.D.B., Burns, R.A., and Campbell, D.A. (2004) Carbon status constrains light acclimation in the cyanobacterium Synechococcus elongatus. Plant Physiol 136: 3301–3312.PubMed ID15466225
Comments "Table 1 summarizes the factors [researchers] used to calculate the energetic benefits. Values for the cyanobacterium Synechococcus are given for comparison, although not discussed in detail. [Researchers] used two approaches for calculating the energy potentially gained from phototrophy. The first approach, which assumes a linear response to light, uses data on in situ light intensity and quality (wavelength), the number of photosynthetic units (PSUs) in each photoheterotroph, the absorption cross-section area as function of wavelength, the quantum efficiency, and the energy yield per absorbed photon. The second approach assumes that the energy potentially gained from phototrophy varies nonlinearly with PAR [photosynthetically active radiance] as a function of two parameters (Table 1) estimated from published experiments (see below). This second approach is independent of the first, except that both depend on the same estimates for the number of PSUs per cell and the energy yield per proton." See note beneath table
Entered by Uri M
ID 111295