Regulation of gamete release in the economic brown seaweed Hizikia fusiforme (Phaeophyta).
Gamete release is an essential event in artificial seeding of the economic brown seaweed, Hizikia fusiforme. Mass egg release occurred in the dark, with few eggs being discharged in the light. Release of eggs was elicited with eight practical salinity units (one PSU identical with 1 g sea salts l(-1)) and was inhibited by salinity levels >32 PSU. Egg release was optimal at 23 degrees C, and was decreased by 72% in agitated seawater compared to unstirred seawater. Inhibitors of photosynthesis and ions channels suppressed egg release, indicating that this process was physiologically associated with photosynthetic activity and ion transport.
Zou
Dinghui
D
Marine Biology Institute, Science Center, Shantou University, 515063 Guangdong, China. dhzou@stu.edu.cn
Gao
Kunshan
K
D000086:Acetazolamide / Q000494:pharmacology; D000704:Analysis of Variance; D000873:Anthracenes / Q000494:pharmacology; D018118:Chloride Channels / Q000037:antagonists & inhibitors / Q000502:physiology; D004237:Diuron / Q000494:pharmacology; D000459:Phaeophyceae / Q000187:drug effects / Q000502:physiology* / Q000528:radiation effects; D017440:Photoperiod; D010788:Photosynthesis / Q000187:drug effects / Q000502:physiology; D026902:Potassium Channel Blockers / Q000494:pharmacology; D012623:Seawater; D012965:Sodium Chloride / Q000494:pharmacology; D013696:Temperature; D019789:Tetraethylammonium / Q000494:pharmacology
D000873:Anthracenes; D018118:Chloride Channels; D026902:Potassium Channel Blockers; D012965:Sodium Chloride; D019789:Tetraethylammonium; C010030:9-anthroic acid; D004237:Diuron; D000086:Acetazolamide