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Table 2 Effects of periostracum extracts (200 μg/mL each) on the attachment and germination of Porphyra suborbiculata monospores

From: Antifouling effects of the periostracum on algal spore settlement in the mussel Mytilus edulis

Periostracum Extracts Yield (%) Relative attachmenta (%) Relative germinationa (%)
Acidified outer Dichloromethane 21.5 35 ± 17** 5.1 ± 1.8**
  Ethyl acetate 5.0 41 ± 7** 8.9 ± 2.4**
  Methanol 5.0 55 ± 9* 10.6 ± 5.0**
Acidified inner Dichloromethane 37.5 31 ± 7** 3.5 ± 3.2**
  Ethyl acetate 5.0 32 ± 1** 5.2 ± 2.6**
  Methanol 5.0 34 ± 6** 10.6 ± 2.4**
Fresh inner Dichloromethane 0.5 35 ± 5** 3.4 ± 5.4**
  Ethyl acetate 1.5 37 ± 9** 4.5 ± 4.1**
  Methanol 1.0 47 ± 8* 16.5 ± 3.6**
Reference    81 ± 7 83.2 ± 5.9
  1. aRelative activities (%) are expressed as means ± SD (n ≥ 3)
  2. *P < 0.1, **P < 0.01