Astasia longa

Photosynthetic microorganisms and plant cell cultures are very important sources of enzymes for the reduction of olefins151, 2981. For example, Hirata et al. found that reduction of enone 11 with Nicotiana tabacum p90 reductase and Nicotiana tabacum p44 reductase affords (S)- and (R)-alkylcyclohexanones, respectively, with excellent enantioselectivities as shown in Fig. 15-53. They also found two enone reductases from Astasia longa, a nonchlorophyllous cell line classified in Euglenales, and studied the mechanism. Both catalyzed enantiospecific trans-addition of hydrogen atoms to carvone from the si-face at the a-position and from the re-face at the p-position. 

A CIRCULAR 73 KBP DNA FROM THE COLOURLESS FLAGELLATE ASTASIA LONGA THAT RESEMBLES THE CHLOROPLAST DNA OF EUGLENA... 

Astasia longa with particular regard to the rbcL gene. 

TABLE 1. Identified genes on the 73 kbp DNA from Astasia longa. Split genes are indicated by an asterisk. 

A Circular 73 KBP DNA from the Colourless Flagellate Astasia longa that Resembles the... 

Only a few species in this Division have been examined for sterol composition. In most cases ergosterol is the principal sterol although in Astasia longa, cholesterol is the principal sterol(13). 

M. Rohmer and R. D. Brandt, Les sterols it leurs precursors Chez Astasia longa Pringsheim, Eur. J. Biochem. 36 446-454 (1973T ... 

Class Euglenineae Order Euglenaceae Astasia longa (Erwin and Bloch, 1963a)... 

The fatty acids of Astasia longa, a colorless euglenid, resemble those of etiolated E. gracilis and of colorless Euglena mutants (Erwin and Bloch, 1963a). 

Finally, Hulanicka et al. showed that Astasia longa, a colorless euglenid, while evidently unable to convert 18 2(9,12) to 18 3(9,... 

Shimoda K, Hirata T. Biotransformation of enones with biocatalysts—two enone reductases from Astasia longa. J. Mol. Catal. B Enzym. 2000 8 255-264. 

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