Environmental Engineering Reference
In-Depth Information
were tested in laboratory assays against the representative species of major
groups of fouling organisms,
viz
. bacteria, fungi, diatoms, the spores and zy-
gotes of macroalgae and the blue mussels
Mytilus edulis
. Several components
showed promising levels of the activity. Especially, two diketonyl diterpenes
(
345, 3410
) showed almost the same bioassays of antibacterial and antifun-
gal activities as those of TBTO and also showed almost the same minimum
inhibitory concentration of 8
gmL
-1
for marine bacteria and marine fungi
with those of TBTO, and elegandiol (
344
) showed high bioassay activities
for the inhibition of microalgal growth, and the development of macroalgal
spores and zygotes [16].
Three renillafoulins
3411
-
3413
from the Atlantic sea pansy
Renilla reni-
formis
, inhibited barnacle settlement with EC
50
values ranging from 0.02
to 0.2
µ
gmL
-1
µ
[17, 27]. Renillafoulins and pukalide
3418
isolated from oc-
Fig. 2
Chemical formulae of diterpenes isolated from
Bifurcaria bifurcata
[16]
