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Plant Physiology 71:200-204 (1983)
© 1983 American Society of Plant Biologists

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Short Communications

Elevated Riboflavin Requirement for Postphotoinductive Events in Sporulation of a Trichoderma Auxotroph

Benjamin A. Horwitz and Jonathan Gressel

Department of Plant Genetics, The Weizmann Institute of Science, 76100 Rehovot, Israel

A riboflavin auxotroph of Trichoderma required more riboflavin for blue-light-induced conidiation than for growth. Colonies transferred after illumination from 0.2 micromolar (limiting conidiation, not growth) to 3.5 micromolar riboflavin (nonlimiting), responded the same as those grown at 3.5 micromolar. The additional riboflavin is therefore not required as a photoreceptor. The data do not rule out the hypothesis that cryptochrome(s) is/are flavin(s).






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ASPB Publications PLANT PHYSIOLOGY® THE PLANT CELL
Copyright © 1983 by the American Society of Plant Biologists