ISSN:
1432-072X
Keywords:
Pseudanabaena strains
;
C-phycoerythrin
;
Chromatic adaptation
;
Proteolysis
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract A cyanobacterium which produces high amounts of C-phycoerythrin was classified as a new Pseudanabaena strain. This strain (number W 1173 of our collection) has been cultivated for 6 years without changing its properties. It resembles Pseudanabaena catenata (strain B 1464-1) morphologically but differs in the pigmentation. Contrary to strain B 1464-1, no chromatic adaptation was observed with strain W 1173. It was found that phycoerythrins from both strains differ in the following properties: isoelectric points, number of bilin chromophores, and immunochemical properties. Besides native C-phycoerythrin (PEI, λmax = 558 nm), a degradation product (PEII, λmax = 544 nm and 562nm) has been found in crude extracts from strain W 1173. Criteria for integrity of C-phycoerythrin were discussed which are essential if this biliprotein is used as taxonomic character.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00427201
