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MES research in wastewater, materials. The movements of bracken spermatozoids are photo-reversibly inhibited by carbon monoxide. At...

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Abstract

The movements of bracken spermatozoids are photo-reversibly inhibited by carbon monoxide. At 20° C the mean speed of a sperm suspension in the presence of 94% CO in O 2 was 51 μ /sec, in green light, the wave-length of which is outside the region of photochemical absorption by CO-cytochrome oxidase. The same suspension had a mean speed of 95 μ /sec. in white light. Spermatozoids that have been rendered motionless by CO in green light, which takes about 5 min., can be induced to move by illuminating them with white light. A large percentage of the spermatozoids are irreversibly damaged if the CO in green light treatment is continued long enough to stop, rather than slow up, movement.

Keywords

BrackenWhite lightBiophysicsPhotochemistryBotany

Identifiers

DOI
10.1098/rspb.1951.0022
Journal
Proceedings of the Royal Society of London. Series B - Biological Sciences
Year
1951