(redirected from phototrophs)
Also found in: Medical, Encyclopedia.


 (fō′tə-trŏf′, -trōf′)
An organism that is capable of using light energy to synthesize sugars and other organic molecules from carbon dioxide. Green plants, algae, and cyanobacteria are phototrophs. Also called photoautotroph.

pho′to·troph′ic adj.
pho′to·troph′i·cal·ly adv.


(Biology) an organism that obtains energy from sunlight for the synthesis of organic compounds
phototrophic adj


(ˈfoʊ təˌtrɒf, -ˌtroʊf)

any organism that uses light as its principal source of energy.
pho`to•troph′ic, adj.
References in periodicals archive ?
With the algae's nuclei, phototrophs also acquire the instructions to do such things as make more chloroplasts, synthesize different pigments, and optimize chloroplasts' ability to perform at different light levels.
For example, microbial biomass in Latin America is dominated by cyanobacteria and fungi, while in Europe phototrophs, including algae and cyanobacteria, are the most common organisms.
2012) detected phylogenetic clustering of bacteria in deeper layers of the mat structure, while the clustering signal was lost in the top layers where oxygenic phototrophs including cyanobacteria reside.
Use of phototrophs opens a new world of possibilities.
Yet, in order to understand how anoxygenic phototrophs evolved in their environment, the C-isotope pathways between bacterial C-fixation and organic matter burial must be elucidated.
Rice plant can form natural associations with various N2-fixing bacteria, both phototrophs and heterotrophs.
Among the microbiota that inhabit the MCM lakes are microbial eukaryotes, mainly protists representing a broad range of evolutionary lineages inclusive of phototrophs, mixotrophs, and heterotrophs (Kong et al.
2]-fixing communities dominated by phototrophs seen in other gyre systems (see above) and in the western SPSG (Hashihama et al.
This process would increase the contaminant burden in deeper waters, where primary production is maximal in Lake A because of anoxygenic bacterial phototrophs (Antoniades et al.
2001, "Anaerobes, aerobes and phototrophs A winning team for wastewater management", Water Science and Technology, vol.
Apart from these 3 colors, all other surfaces revealed the presence of fungi and phototrophs (algae and, mainly, cyanobacteria).