Abstract:
:The mechanism of photoactivation of photosystem I electron transport was studied in intact Bryopsis corticulans chloroplasts. The evidence from chemical and photochemical studies suggests that photoactivation is a consequence of a reduction of an electron transport component, presumably ferredoxin-NADP(+) reductase. O(2) does not act as a mediator of the process but rather acts as an electron acceptor after photoactivation has occurred. We suggest that the initial function of the chloroplasts in a transition from dark to light is to initiate pseudocyclic electron flow.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
Satoh Kdoi
10.1104/pp.70.5.1413subject
Has Abstractpub_date
1982-11-01 00:00:00pages
1413-6issue
5eissn
0032-0889issn
1532-2548journal_volume
70pub_type
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