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Role of Riboflavin and Certain Amino Acids in the Excystment of Schizopyrenus russelli *
Author(s) -
RASTOGI A. K.,
SAGAR P.,
AGARWALA S. C.
Publication year - 1973
Publication title -
the journal of protozoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.067
H-Index - 77
eISSN - 1550-7408
pISSN - 0022-3921
DOI - 10.1111/j.1550-7408.1973.tb00923.x
Subject(s) - riboflavin , amino acid , tryptophan , isoleucine , biology , serine , biochemistry , proline , glutamic acid , leucine , enzyme
SYNOPSIS. A simple medium, consisting of riboflavin and a mixture of L‐glutamic acid, L‐tryptophan, L‐isoleucine, L‐serine, and L‐proline has been shown to induce rapid and mass scale excystment in Schizopyrenus russelli. Whereas percentage excystment was found to depend on the concentration of riboflavin and amino acids, more than 80% of cysts were found to excyst within 4 hr, when adequate amounts of these were supplied. Several individual amino acids, particularly L‐glutamic acid, L‐tryptophan, and L‐proline, also supported considerable excystment, but riboflavin was always indispensable.