Palmelloid Formation of Chlamydomonas II. Mechanism of Palmelloid Formation by Organic Acids

Autor:	Shohachi Murakami, Kozo Iwasa
Rok vydání:	1969
Předmět:	biology Physiology Inorganic chemistry Phosphate ion Chlamydomonas chemistry.chemical_element Cell Biology Plant Science General Medicine Calcium biology.organism_classification Dissociation (chemistry) chemistry Genetics Biophysics Chelation Magnesium ion Volume concentration
Zdroj:	Physiologia Plantarum. 22:43-50
ISSN:	1399-3054 0031-9317
DOI:	10.1111/j.1399-3054.1969.tb07839.x
Popis:	To clarify the mechanism of palmelloid formation by organic acids, the dissociation of the suspension of palmelloids in different media was studied. It was found that the palmelloids can be dissociated by the calcium ion at the low concentration of 6.8 × 10-5M, but not by the magnesium ion. The dissociation is suppressed by the phosphate ion. Furthermore, Chlamydomonas cells grown in media containing EDTA or GEDTA or in media deficient in calcium, are induced to form palmelloids. These results indicate that the effect of organic acids on the formation of palmelloids are due to their ability to chelate with calcium.
Databáze:	OpenAIRE
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