Full text loading...
Abstract
Summary: Adenylate cyclase and phosphodiesterase activities were assayed during the course of sexual reproduction in Coprinus cinereus. High levels of adenylate cyclase activity and low levels of phosphodiesterase activity were found in all dikaryons, in Amut Bmut strains, and in the monokaryotic fruiter Fisc. Corresponding to this, a high level of cAMP was found in these strains. On the other hand, low levels of cAMP were found in semi-compatible heterokaryons (common-A and common-B), and in Amut and Bmut strains, where the events leading to sexual morphogenesis had been switched on only partially. cAMP-binding and cAMP-dependent protein kinase activities were detected in the dikaryons, and in Amut Bmut and Fisc strains, but were negligible in the sexually sterile strains. The results indicated that both A and B factors are involved in the coordinate regulation of adenylate cyclase, phosphodiesterase, and cAMP-dependent protein kinase during fruit body formation.
- Received:
- Revised:
- Published Online: