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Intracolonial Allocation of Trisoxazole Macrolides in the Sponge Pachastrissa nux
Author(s) -
Sirirak Thanchanok,
Intaraksa Niwan,
Kaewsuwan Sireewan,
Yuenyongsawad Supreeya,
Suwanborirux Khanit,
Plubrukarn Anuchit
Publication year - 2011
Publication title -
chemistry and biodiversity
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.427
H-Index - 70
eISSN - 1612-1880
pISSN - 1612-1872
DOI - 10.1002/cbdv.201100171
Subject(s) - sponge , gorgonian , chemistry , stereochemistry , botany , biology , ecology , coral
Pachastrissa nux has two distinctive growth forms in one colony, i.e. , the protruding gorgonian‐shaped capitum and the substratum‐attached irregular‐shaped base. The sponge has the ability to allocate specifically its major secondary metabolites to the two parts in different levels. Using two cytotoxic trisoxazole macrolides, kabiramides C ( 2 ) and G ( 3 ), as chemical markers, it was found that the capitum accumulated higher contents of either or both compounds than did the base. However, there were neither inductive nor suppressive correlations among the allocation profiles of either compound in either part of the sponge. The allocation of kabiramides was a trade‐off with the structural materials involved in reinforcing the strength of the sponge. To date, this is the second report that provides evidence of the specific allocation of bioactive metabolites in two distinctively different organ‐like structures in a single sponge colony.