phycoerythrin

As mentioned above, phycoerythrin can be found in a variety of algal species.

Similarly phycoerythrin is also found in rhodophytes and some cryptomonads.

Flourogenic reporters like phycoerythrin are used in a number of modern immunoassays.

When bound to phycoerythrin, phycourobilin shows an absorption maximum around 495 nm.

The frond's reddish-black colour results from the red pigments phycoerythrin and phycocyanin.

The apoprotein with its chromophore is called phycocyanin, phycoerythrin, and allophycocyanin, respectively.

There are phycocyanin and phycoerythrin subunits that radiate out from this center like thin tubes.

In some species of cyanobacteria, when both phycocyanin and phycoerythrin is present, the phycobilisome can undergo significant restructuring as response to light color.

Cells are obligate photoautrotrophs, lack phycoerythrin and are thermophilic.

Phycocyanin is a pigment-protein complex from the light-harvesting phycobiliprotein family, along with allophycocyanin and phycoerythrin.

In green light, the cells accumulate more phycoerythrin, whereas in red light they produce more phycocyanin.

Phycoerythrobilin is present in the phycobiliprotein phycoerythrin, of which it is the terminal acceptor of energy.

However more recently, Oswold et al. (2007) showed an absence of functional phycoerythrin in M. Cavernosa.

The four commonly recognized phycobilins are phycocyanin, allophycocyanin, allophycocyanin B and phycoerythrin.

This cluster is however further divided into a population that either contains (cluster 5.1) or does not contain (cluster 5.2) phycoerythrin.

In green light the distal portions of the rods are made of red colored phycoerythrin, which absorbs green light better.

Epifluorescence microscopy allows to detect certain groups of cells possessing fluorescent pigments such as Synechococcus which possess phycoerythrin.

For example Synechococcus is characterized by the double fluorescence of its pigments: orange for phycoerythrin and red for chlorophyll.

Cluster 3 includes phycoerythrin lacking marine Synechococcus that are euryhaline i.e. capable of growth in both marine and fresh water environments.

This technology uses flow cytometric or imaging technologies for characterization of the beads as well as detection of phycoerythrin emission due to analyte presence.

This chromophore is bound to the phycobiliprotein phycoerythrin, the distal component of the light-harvesting system of cyanobacteria and red algae (phycobilisome).

(i.e., phycoerythrin absorbs slightly blue-green/yellowish light and emits slightly orange-yellow light.)

This coral occasionally has a fluorescent red or orange color during daytime; it has recently been suggested that this color is due to phycoerythrin, a cyanobacterial protein.

The light energy is captured by phycoerythrin and is then passed on to the reaction centre chlorophyll pair, most of the time via the phycobiliproteins phycocyanin and allophycocyanin.

In the phycoerythrin family, the phycobilins are: phycoerythrobilin, the typical phycoerythrin acceptor chromophore, and sometimes phycourobilin (marine organisms).