Literature DB >> 16660653

Nitrate Utilization by the Diatom Skeletonema costatum: II. Regulation of Nitrate Uptake.

J L Serra1, M J Llama, E Cadenas.   

Abstract

Nitrate utilization has been characterized in nitrogen-deficient cells of the marine diatom Skeletonema costatum. In order to separate nitrate uptake from nitrate reduction, nitrate reductase activity was suppressed with tungstate. Neither nitrite nor the presence of amino acids in the external medium or darkness affects nitrate uptake kinetics. Ammonium strongly inhibits carrier-mediated nitrate uptake, without affecting diffusion transfer. A model is proposed for the uptake and assimilation of nitrate in S. costatum and their regulation by ammonium ions.

Entities:  

Year:  1978        PMID： 16660653      PMCID： PMC1092269          DOI： 10.1104/pp.62.6.991

Source DB:  PubMed          Journal:  Plant Physiol        ISSN： 0032-0889            Impact factor:   8.340


  8 in total

1.  Ferredoxin-dependent photosynthetic reduction of nitrate and nitrite by particles of Anacystis nidulans.

Authors:  C Manzano; P Candau; C Gomez-Moreno; A M Relimpio; M Losada
Journal:  Mol Cell Biochem       Date:  1976-02-25       Impact factor: 3.396

2.  The effect of tungstate on nitrate assimilation in higher plant tissues.

Authors:  Y M Heimer; J L Wray; P Filner
Journal:  Plant Physiol       Date:  1969-08       Impact factor: 8.340

3.  Characterization of a membrane-bound nitrate reductase from Azotobacter chroococcum.

Authors:  R Vila; J A Bárcena; A Llobell; A Paneque
Journal:  Biochem Biophys Res Commun       Date:  1977-04-11       Impact factor: 3.575

4.  Environmental or developmental changes cause many enzyme activities of higher plants to rise or fall.

Authors:  P Filner; J E Varner; J L Wray
Journal:  Science       Date:  1969-07-25       Impact factor: 47.728

5.  Regulation of the nitrate assimilation pathway in cultured tobacco cells. 3. The nitrate uptake system.

Authors:  Y M Heimer; P Filner
Journal:  Biochim Biophys Acta       Date:  1971-02-23

6.  Nitrate Utilization by the Diatom Skeletonema costatum: I. Kinetics of Nitrate Uptake.

Authors:  J L Serra; M J Llama; E Cadenas
Journal:  Plant Physiol       Date:  1978-12       Impact factor: 8.340

7.  Regulation of Nitrate Uptake in Penicillium chrysogenum by Ammonium Ion.

Authors:  J Goldsmith; J P Livoni; C L Norberg; I H Segel
Journal:  Plant Physiol       Date:  1973-10       Impact factor: 8.340

8.  Nitrate transport system in Neurospora crassa.

Authors:  R H Schloemen; R H Garrett
Journal:  J Bacteriol       Date:  1974-04       Impact factor: 3.490
  8 in total
  2 in total

1.  Metatranscriptome analyses indicate resource partitioning between diatoms in the field.

Authors:  Harriet Alexander; Bethany D Jenkins; Tatiana A Rynearson; Sonya T Dyhrman
Journal:  Proc Natl Acad Sci U S A       Date:  2015-04-13       Impact factor: 11.205

2.  Genetic Manipulation of Competition for Nitrate between Heterotrophic Bacteria and Diatoms.

Authors:  Rachel E Diner; Sarah M Schwenck; John P McCrow; Hong Zheng; Andrew E Allen
Journal:  Front Microbiol       Date:  2016-06-09       Impact factor: 5.640
  2 in total

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