blue colored and 545 to 565 nm wavelength of phycoerythrin does
absorbs.
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phycoerythrin
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there is no phycoerythrin present in plants it is only found in
red algae, cyanobacteria, cynelles, cryptomaonads and glaucophytes.
so in higher plants must be anthocyanin.
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They are red due to the pigment phycoerythrin found in the in
the phycobilisomes atached to the thylakoid membrane.