Published March 1958
| Published
Journal Article
Open
Chemotaxis of Bracken Spermatozoids : The Role of Bimalate Ions
- Creators
- Brokaw, C. J.
Chicago
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Abstract
1. Bracken spermatozoids are chemotactically attracted by malic acid salts and in a pH gradient aggregate between pH 3.5 and 5.6. 2. This response to pH occurs only when the sperm suspension contains malate. 3. At higher pH's, the response to an H+ gradient is as strong as the response to a malate gradient. 4. These observations suggest that bracken spermatozoids are sensitive to the bimalate ion rather than the malate ion. This is consistent with an earlier suggestion that chemotactic activity is associated with the cis-configuration, for the bimalate ion will have this configuration, while the malate ion and the malic acid molecule will have the trans-configuration.
Additional Information
Published by Company of Biologists 1958. (Received 10 August 1957) This work has been carried out during the tenure of a National Science Foundation Predoctoral Fellowship. I am also indebted to Prof. G. Kenner for suggesting that the configurations of malate in solution might be significant, and to Lord Rothschild for introducing me to bracken sperm chemotaxis.Attached Files
Published - BROjeb58a.pdf
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Additional details
- Eprint ID
- 11635
- Resolver ID
- CaltechAUTHORS:BROjeb58a
- National Science Foundation
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2008-09-15Created from EPrint's datestamp field
- Updated
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2019-10-03Created from EPrint's last_modified field