Chlorophyll and carotenoids of five isolates of the red alga Antithamnion plumula

Female plants of five isolates (including two varieties) of the red alga Antithamnion plumula were cultured mnoalgally and analysed for chlorophylls and carotenoids. The relative amounts of the individual pigments ewre similar for the five isolates. All isolates contained chlorophyll β,β-carotene, β,ε-carotene, α-cryptoxanthin and lutein. Allylic methylation of α-cryptoxanthin indicated a 3′-position of the hydroxyl group. An earlier tentative identification of neoxanthin in A. plumula could not be confirmed.