Phytoplankton determines the bulk optical properties by the absorption behaviour of its pigments.
There are three groups of pigments, the lipophilic groups of chlorophylls and carotenoids, and the
hydrophilic group of biliproteins. Chlorophylls and carotenoids are always present in micro- and
macro algae. The main photosynthetic pigment is Chl-a, the chlorophylls b, c and d are antenna
pigments and coexist in species-specific variations. All chlorophylls absorb in the short bluewavelength range, and Chl-aconsiderably in the red-wavelength range. The group of carotenoids is
composed of a variety of pigments that serve asantenna pigments or protect the organism, and
absorb in the blue-to-green wavelength range. The antenna pigment group of phycobilins is bound
to phycobiliproteins and includes red pigments (e.g., phycoerythrin, phycoerythrocyanin) and blue
pigments (e.g., phycocyanin).
Phytoplankton determines the bulk optical properties by the absorption behaviour of its pigments.
There are three groups of pigments, the lipophilic groups of chlorophylls and carotenoids, and the
hydrophilic group of biliproteins. Chlorophylls and carotenoids are always present in micro- and
macro algae. The main photosynthetic pigment is Chl-a, the chlorophylls b, c and d are antenna
pigments and coexist in species-specific variations. All chlorophylls absorb in the short bluewavelength range, and Chl-aconsiderably in the red-wavelength range. The group of carotenoids is
composed of a variety of pigments that serve asantenna pigments or protect the organism, and
absorb in the blue-to-green wavelength range. The antenna pigment group of phycobilins is bound
to phycobiliproteins and includes red pigments (e.g., phycoerythrin, phycoerythrocyanin) and blue
pigments (e.g., phycocyanin).
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