Note on the effect of high nitrate concentration and light intensity on the growth and uptake rates of Phaeovactylum tricornutum (Bohlin) culture
The effect of high nitrate concentration and light intensity on chlorophyll-a synthesis, cell number and nitrate assimilation on P. tJt¿coh,nuutum culture, was determined. Growth and uptake rates were determined as a function of nitrate concentration ranging from 0.40 to 35.40 µg/l. The Ks showed hi...
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Universidade de São Paulo
1983-01-01
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Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87591983000100010 |
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doaj-89356e0b98644c0eb3751a8c2a6a47682020-11-25T00:47:53ZengUniversidade de São PauloBrazilian Journal of Oceanography 1679-87591982-436X1983-01-01321919810.1590/S1679-87591983000100010Note on the effect of high nitrate concentration and light intensity on the growth and uptake rates of Phaeovactylum tricornutum (Bohlin) cultureGilda SchmidtThe effect of high nitrate concentration and light intensity on chlorophyll-a synthesis, cell number and nitrate assimilation on P. tJt¿coh,nuutum culture, was determined. Growth and uptake rates were determined as a function of nitrate concentration ranging from 0.40 to 35.40 µg/l. The Ks showed high values, when compared with those obtained with lower nitrate concentration. The percentual variation of Ks was greater than that of Vmax.<br>Foi determinado o efeito dc ama alta concentração de nitrato e alta incensidade luminosa na síntese de clorofila-α, número de células e assimilação nitrato em uma cultura de P. triconotum. As velocidade de crescimento e de assimilação foram determinados em função de concentrações de nitrato variando de 0,40 a 35,40 µg-at/l e intensidade luminosa de 12 KLUX. A Ks e a Vmax apresentaram valores altos, comparativamente com valores obtidos em concentrações mais baixas de nitrato e menor intensidade luminosa. A variação porcentual da Ks foi maior que a variação porcentual da Vmax.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87591983000100010NitratosClorofilasPhaedactylum tricornutumCrescimentoMeio de culturaNutrientes mineraisIntensidade luminosaCélulaNitratesChlorophyllsPhaeodactylum tricornutumGrowthCulture mediaNutrients (mineral)Light intensi tyCell |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Gilda Schmidt |
spellingShingle |
Gilda Schmidt Note on the effect of high nitrate concentration and light intensity on the growth and uptake rates of Phaeovactylum tricornutum (Bohlin) culture Brazilian Journal of Oceanography Nitratos Clorofilas Phaedactylum tricornutum Crescimento Meio de cultura Nutrientes minerais Intensidade luminosa Célula Nitrates Chlorophylls Phaeodactylum tricornutum Growth Culture media Nutrients (mineral) Light intensi ty Cell |
author_facet |
Gilda Schmidt |
author_sort |
Gilda Schmidt |
title |
Note on the effect of high nitrate concentration and light intensity on the growth and uptake rates of Phaeovactylum tricornutum (Bohlin) culture |
title_short |
Note on the effect of high nitrate concentration and light intensity on the growth and uptake rates of Phaeovactylum tricornutum (Bohlin) culture |
title_full |
Note on the effect of high nitrate concentration and light intensity on the growth and uptake rates of Phaeovactylum tricornutum (Bohlin) culture |
title_fullStr |
Note on the effect of high nitrate concentration and light intensity on the growth and uptake rates of Phaeovactylum tricornutum (Bohlin) culture |
title_full_unstemmed |
Note on the effect of high nitrate concentration and light intensity on the growth and uptake rates of Phaeovactylum tricornutum (Bohlin) culture |
title_sort |
note on the effect of high nitrate concentration and light intensity on the growth and uptake rates of phaeovactylum tricornutum (bohlin) culture |
publisher |
Universidade de São Paulo |
series |
Brazilian Journal of Oceanography |
issn |
1679-8759 1982-436X |
publishDate |
1983-01-01 |
description |
The effect of high nitrate concentration and light intensity on chlorophyll-a synthesis, cell number and nitrate assimilation on P. tJt¿coh,nuutum culture, was determined. Growth and uptake rates were determined as a function of nitrate concentration ranging from 0.40 to 35.40 µg/l. The Ks showed high values, when compared with those obtained with lower nitrate concentration. The percentual variation of Ks was greater than that of Vmax.<br>Foi determinado o efeito dc ama alta concentração de nitrato e alta incensidade luminosa na síntese de clorofila-α, número de células e assimilação nitrato em uma cultura de P. triconotum. As velocidade de crescimento e de assimilação foram determinados em função de concentrações de nitrato variando de 0,40 a 35,40 µg-at/l e intensidade luminosa de 12 KLUX. A Ks e a Vmax apresentaram valores altos, comparativamente com valores obtidos em concentrações mais baixas de nitrato e menor intensidade luminosa. A variação porcentual da Ks foi maior que a variação porcentual da Vmax. |
topic |
Nitratos Clorofilas Phaedactylum tricornutum Crescimento Meio de cultura Nutrientes minerais Intensidade luminosa Célula Nitrates Chlorophylls Phaeodactylum tricornutum Growth Culture media Nutrients (mineral) Light intensi ty Cell |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87591983000100010 |
work_keys_str_mv |
AT gildaschmidt noteontheeffectofhighnitrateconcentrationandlightintensityonthegrowthanduptakeratesofphaeovactylumtricornutumbohlinculture |
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1725257936308011008 |