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. 1974 Mar;53(3):395–397. doi: 10.1104/pp.53.3.395

A Study of the Control of Glycolate Excretion in Chlorella1

Brian Colman a, A G Miller a, B Grodzinski a
PMCID: PMC543229  PMID: 16658712

Abstract

Chlorella pyrenoidosa cells grown on 5% CO2 excreted glycolate when incubated in light with 10 mm bicarbonate, but excreted no glycolate under the same conditions when they were maintained on air for 7 hours prior to the assay. Incubation of 5% CO2-grown and air-grown cells with 10 mm isonicotinyl hydrazide or 10 mm α-hydroxypyridinemethane sulfonate during the assay stimulated the excretion of glycolate by CO2-grown cells severalfold that of air-grown cells.

Adaptation of CO2-grown Chlorella to growth on air did not affect the levels of glycolate dehydrogenase in the cells and did not affect the rate of dark oxidation and metabolism of exogeneous 14C-glycolate by the cells. These results indicate that the lack of glycolate excretion by air-grown or air-adapted cells of Chlorella cannot be explained by a concomitant change in the level of glycolate dehydrogenase.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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