dc.contributor.author | Wafar, M.V.M. | |
dc.contributor.author | Wafar, S. | |
dc.contributor.author | Rajkumar, R. | |
dc.date.accessioned | 2009-05-06T10:30:04Z | |
dc.date.available | 2009-05-06T10:30:04Z | |
dc.date.issued | 1993 | |
dc.identifier.citation | Indian Journal of Marine Sciences, Vol.22(2); 83-88p. | |
dc.identifier.uri | http://drs.nio.org/drs/handle/2264/2786 | |
dc.description.abstract | Zooxanthellae freshly isolated from the coral host Pocillopora damicornis exhibited substrate-saturable uptake kinetics for ammonium, nitrate and urea. Maximum uptake velocity for ammonium [10.1 nmol. ( mu chl-a)./1h/1] was greater than that for nitrate [2.8 nmol. ( mu chl-a)./1h/1] and urea [0.37 nmol. ( mu chl-a)./1h/1]. Half-saturation constants for uptake of the three nitrogen compounds were in the range of 10-15 mu mol.l/1. Generally, uptake of any one nitrogen substrate appears to be inhibitEd. by the other 2 substrates when the latter are present in higher concentrations. The observed interactions can be explainEd. by the uncompetitive model. These results are interpreted as indicative of a simultaneous uptake of all 3 nitrogen compounds by the zooxanthellae | |
dc.language.iso | en | |
dc.publisher | NISCAIR, New Delhi | |
dc.rights | Copyright [1993]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository. | |
dc.subject | coral | |
dc.subject | zooxanthellae | |
dc.subject | nitrogen fixation | |
dc.subject | nitrates | |
dc.subject | ammonia | |
dc.subject | urea | |
dc.subject | Pocillopora damicornis | |
dc.title | Nitrogen uptake kinetics of freshly isolated zooxanthellae | |
dc.type | Journal Article | |