ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] It was found that the spring stimulus depended on the simultaneous presence of two substances, of which the first proved to be calcium (Ca++), occurring in amounts sufficient to give a level of approximately 5 x 10-* M in a medium containing 5 g/1. crude glucose. Calcium was already known to ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/197723a0
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