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Literature DB >> 4200722

Differentiation in Nostoc muscorum: nitrogenase is synthesized in heterocysts.

Abstract

Cellular differentiation can be observed in certain filamentous blue-green algae after transfer of the cells from medium containing NH(4) (+) or NO(3) (-) to nitrogen-free medium. The appearance of differentiated cells (heterocysts) is accompanied by an increase in the activity of nitrogenase, an enzyme complex that reduces N(2) to NH(3). We have separated vegetative cells from heterocysts in differentiated filaments of Nostoc muscorum, and analyzed their proteins by polyacrylamide-gel electrophoresis. The pattern of incorporation of (35)SO(4) (-) into proteins of the two cell types during differentiation indicates that the increase in nitrogenase activity is due to the de novo synthesis of nitrogenase proteins predominantly, if not exclusively, in heterocysts.

Entities: Chemical Species

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Year: 1973 PMID： 4200722 PMCID： PMC427096 DOI： 10.1073/pnas.70.10.2727

Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN： 0027-8424 Impact factor: 11.205

23 in total

1. The heterocysts of blue-green algae. 3. Differentiation and nitrogenase activity.

Authors: S A Kulasooriya; N J Lang; P Fay
Journal: Proc R Soc Lond B Biol Sci Date: 1972-06-06

2. Subunit structure of azoferredoxin from Clostridium pasteurianum W5.

Authors: G Nakos; L Mortenson
Journal: Biochemistry Date: 1971-02-02 Impact factor: 3.162

3. The nitrogenase system from Azotobacter: two-enzyme requirement for N2 reduction, ATP-dependent H2 evolution, and ATP hydrolysis.

Authors: W A Bulen; J R LeComte
Journal: Proc Natl Acad Sci U S A Date: 1966-09 Impact factor: 11.205

1. Newly identified cytochrome c oxidase operon in the nitrogen-fixing cyanobacterium Anabaena sp. strain PCC 7120 specifically induced in heterocysts.

Authors: Kathryn M Jones; Robert Haselkorn
Journal: J Bacteriol Date: 2002-05 Impact factor: 3.490

2. Estimation of gene expression in heterocysts of Anabaena variabilis by using DNA-RNA hybridization.

Authors: M E Lynn; J A Bantle; J D Ownby
Journal: J Bacteriol Date: 1986-09 Impact factor: 3.490

3. Isolation, sequence and transcription of the gene encoding the photosystem II chlorophyll-binding protein, CP-47, in the cyanobacterium Anabaena 7120.

Authors: J D Lang; R Haselkorn
Journal: Plant Mol Biol Date: 1989-10 Impact factor: 4.076

Differentiation in Nostoc muscorum: nitrogenase is synthesized in heterocysts.

1. The heterocysts of blue-green algae. 3. Differentiation and nitrogenase activity.

2. Subunit structure of azoferredoxin from Clostridium pasteurianum W5.

3. The nitrogenase system from Azotobacter: two-enzyme requirement for N2 reduction, ATP-dependent H2 evolution, and ATP hydrolysis.

4. Morphology of a virus of blue-green algae and properties of its deoxyribonucleic acid.

5. Subunit structure of the phycobiliproteins of blue-green algae.

6. Heterocyst formation and nitrogenase synthesis in Anabaena sp. A kinetic study.

7. Soluble nitrogenase from vegetative cells of the blue-green alga Anabaena cylindrica.

8. Nitrogenase activity in heterocysts of blue-green algae.

9. Acetylene reduction by nitrogen-fixing preparations from Clostridium pasteurianum.

10. Metabolic activities of isolated heterocysts of the blue-green alga Anabaena cylindrica.

1. Newly identified cytochrome c oxidase operon in the nitrogen-fixing cyanobacterium Anabaena sp. strain PCC 7120 specifically induced in heterocysts.

2. Estimation of gene expression in heterocysts of Anabaena variabilis by using DNA-RNA hybridization.

3. Isolation, sequence and transcription of the gene encoding the photosystem II chlorophyll-binding protein, CP-47, in the cyanobacterium Anabaena 7120.

Review 4. Specialist phototrophs, lithotrophs, and methylotrophs: a unity among a diversity of procaryotes?

5. The metabolism of glucose by heterocysts and vegetative cells of Anabaena cylindrica.

6. Heterotrophic capacities of Plectonema boryanum.

7. Permeabilization of isolated heterocysts of Anabaena sp. strain 7120 with detergent.

8. Regulation of glutamine synthetase activity and synthesis in free-living and symbiotic Anabaena spp.

9. Characterization of genes for an alternative nitrogenase in the cyanobacterium Anabaena variabilis.

10. Effects of D-erythrose on nitrogenase activity in whole filaments of Anabaena sp. strain 7120.