photoheterotrophicadj.
/ˌfəʊtəʊˌhɛt(ə)rə(ʊ)ˈtrɒfɪk/, /ˌfəʊtəʊˌhɛt(ə)rə(ʊ)ˈtrəʊfɪk/, U.S. /ˈˌfoʊdoʊˌhɛdərəˈtrɑfɪk/ Biology.
Of an organism or its nutrition: using light energy for biosynthesis from organic nutrients; photoorganotrophic.
ΘΚΠ
the world > plants > by nutrition or respiration > [adjective] > photosynthesizing or photosynthesized
photosynthetic1897
photosynthesizing1905
photosynthesized1910
phototrophic1921
photoautotrophic1939
photoheterotrophic1945
photoorganotrophic1951
photolithotrophic1954
photorespiratory1968
photorespiring1969
photorespired1970
1945 E. I. Rabinowitch Photosynthesis I. v. 106 The metabolism of the ‘photoheterotrophic’ bacteria—that is, bacteria which require light for the assimilation of organic nutrients, seemed at first to be quite different from that of the ‘photautotrophic’ bacteria.
1975 Nature 18 Dec. 631/1 Typical purple bacteria produce large quantities of molecular hydrogen during photoheterotrophic growth on organic acids.
2001 Bot. Rev. (Nexis) 1 Oct. 453 The cyanobiont may be having a photoheterotrophic or mixotrophic metabolism in the mature leaf cavities.
Derivatives
ˌphotoheteroˈtrophically adv.
ΘΚΠ
the world > plants > by nutrition or respiration > [adverb] > involving the effect of light on plants
photosynthetically1898
phototrophically1948
photoheterotrophically1952
photomorphogenically1959
photomorphogenetically1960
photoorganotrophically1965
1952 Proc. National Acad. Sci. U.S.A. 38 561 Chlorella cells were grown photoheterotrophically at room temperature in 1-liter cotton-stoppered Erlenmeyer flasks on a mechanical shaker.
1993 Jrnl. Bacteriol. 175 3373/2 Both strains are able to grow photoheterotrophically on malate with CO2 as an electron acceptor.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
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adj.1945