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A COMPARATIVE STUDY OF THE CHEMOTAXIS OF THE MOTILE PHASES OF ALLOMYCES
Author(s) -
Carlile M. J.,
Machlis Leonard
Publication year - 1965
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1965.tb06811.x
Subject(s) - biology , hydrolysate , serine , amino acid , zygote , chemotaxis , casein , cysteine , biochemistry , proline , microbiology and biotechnology , hydrolysis , enzyme , embryogenesis , receptor , gene
The response of the various motile phases of Allomyces to sirenin and to casein hydrolysate was examined. Male gametes respond chemotactically to sirenin but not to casein hydrolysate. Female gametes do not respond to either of the reagents. Zygotes, mitospores and meiospores respond to casein hydrolysate but not to sirenin. The zygotes were shown to respond to the individual amino acids cysteine, proline and serine but not to the other amino acids tested. Chemotropism of germ‐tubes to casein hydrolysate was also demonstrated. The high activity of sirenin and the specificity of its action is in marked contrast to the low activity and lack of specificity of the amino acids in producing chemotactic and chemotropic responses.