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. 1976 Oct;58(4):526–529. doi: 10.1104/pp.58.4.526

Development of the Primary Photochemical Apparatus of Photosynthesis during Greening of Etiolated Bean Leaves 1

Neil R Baker a,2, Warren L Butler a
PMCID: PMC543266  PMID: 16659710

Abstract

Seven-day-old dark-grown bean leaves were greened under continuous light. The amount of chlorophyll, the ratio of chlorophyll a to chlorophyll b, the O2 evolving capacity and the primary photochemical activities of Photosystem I and Photosystem II were measured on the leaves after various times of greening. The primary photochemical activities were measured as the photo-oxidation of P700, the photoreduction of C-550, and the photo-oxidation of cytochrome b559 in intact leaves frozen to −196 C. The results indicate that the reaction centers of Photosystem I and Photosystem II begin to appear within the first few minutes and that Photosystem II reaction centers accumulate more rapidly than Photosystem I reaction centers during the first few hours of greening. The very early appearances of the primary photochemical activity of Photosystem II was also confirmed by light-induced fluorescence yield measurements at −196 C.

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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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