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Identification Of Compounds Of Allelopathic Extracts From Two Species Of Metapeyssonnelia (Rhodophyta) Growing On The Hydrocoral, Millepora Complanata, In Puerto Rico, Maria I. Reyes-Contreras, Aniuska Kazandjian, David L. Ballantine
Identification Of Compounds Of Allelopathic Extracts From Two Species Of Metapeyssonnelia (Rhodophyta) Growing On The Hydrocoral, Millepora Complanata, In Puerto Rico, Maria I. Reyes-Contreras, Aniuska Kazandjian, David L. Ballantine
Gulf and Caribbean Research
Two Puerto Rican species of the encrusting red alga Metapeyssonnelia are known to overgrow and kill the hydrocoral Millepora complanata. The overgrowth is accompanied by bleaching or tissue lightening regions surrounding the growing margin of the algae on the coral tissue. Lipophilic and hydrophilic extracts from Metapeyssonnelia corallepida and M. milleporoides were obtained and analyzed by GC-MS. The following compounds were identified from M. corallepida: squalene and 5-(hydroxymethyl)-2-(dimethoxymethyl)-furan3-methoxycarbonyl-1,1-diethyl-2-buten-4-olide and from M. milleporoides: 2,4-dit-butyl phenol, 2(3H)-furanone and dihydro-4,4-dimethyl-(CAS), terpenes, furanones and phenol. Aliquots of crude extracts of both Metapeyssonnelia species applied to coral fragments resulted in visible changes …