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单词 photoassimilate
释义

photoassimilaten.

Brit. /ˌfəʊtəʊəˈsɪmᵻlət/, U.S. /ˌfoʊdoʊəˈsɪmələt/
Origin: Formed within English, by conversion. Etymon: photoassimilate v.
Etymology: < photoassimilate v. Compare earlier photoassimilation n.
Biology.
The product of photoassimilation; any of the carbon-containing compounds produced by photosynthesis.
ΚΠ
1968 Plant Physiol. 43 847/2 The isotope technique provided a more direct means of observing the loss of recent photo-assimilate.
1972 McGraw-Hill Yearbk. Sci. & Technol. 1971 324/2 Chilling reduces water and nutrient uptake and likewise translocation of photoassimilates.
1990 Jrnl. Exper. Bot. 41 950/1 Wheat is..known to accumulate fructans in the stem,..and to utilize those carbohydrates to fill the grain if the plant is short of current photoassimilate.
This is a new entry (OED Third Edition, March 2006; most recently modified version published online March 2022).

photoassimilatev.

Brit. /ˌfəʊtəʊəˈsɪmᵻleɪt/, U.S. /ˌfoʊdoʊəˈsɪməˌleɪt/
Origin: Formed within English, by compounding. Etymons: photo- comb. form, assimilate v.
Etymology: < photo- comb. form + assimilate v., probably after photoassimilation n.
Biology.
transitive. To assimilate (a carbon source) by photosynthesis. Also intransitive.
ΘΚΠ
the world > life > biology > biological processes > light-related processes > [verb (transitive)] > other processes
photosynthesize1908
photoreactivate1953
photoprotect1960
photoassimilate1961
photoconvert1962
1961 Bull. Torrey Bot. Club 88 239 Several algal species are known..to acquire, after adaptation to hydrogen, a capacity to photo-assimilate CO2 with the aid of molecular hydrogen.
1975 Nature 9 Oct. 490/2 The ability of the cyanobacterium to photoassimilate CO2 in reactions driven by photosystem I alone and using Na2S was demonstrated.
1996 Jrnl. Ecol. 84 450/2 Only the younger ramet generations are photoassimilating, but several interconnected older generations have functional roots.

Derivatives

photoaˈssimilated adj.
ΚΠ
1965 Limnol. & Oceanogr. 10 192 The excretion of photoassimilated carbon was determined for 22 species of unicellular marine algae in culture.
1993 Polar Biol. 13 281/1 Distribution of photoassimilated carbon into major metabolite classes differed between two Antarctic diatom species.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
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n.1968v.1961
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