✦ LIBER ✦

Photo-inhibition of cell division and growth in euglenoid flagellates

✍ Scribed by J. R. Cook

Publisher: John Wiley and Sons
Year: 1968
Tongue: English
Weight: 582 KB
Volume: 71
Category: Article
ISSN: 0021-9541
DOI: 10.1002/jcp.1040710209

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✦ Synopsis

Visible light of moderate intensity causes two and perhaps three types of division inhibition in Euglena gracilis and related cells. Fluorescent light causes a general inhibition of growth and division which is temperature-dependent. Pigmentation or complex organic media partially lifts this inhibition. A second type of inhibition, which is transient, can be caused by either fluorescent or incandescent light, and is found with an irreversibly bleached strain of Euglena grown on a limiting concentration of acetate; this inhibition could not be demonstrated in cells grown on limiting concentrations of glucose.

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