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Hydrogen evolution by photobleached Anabaena cylindrica
Planta, 1981We have studied the evolution of hydrogen by photobleached filaments of the heterocystous bluegreen alga Anabaena cylindrica. The photobleached cells became orange-yellow due to the heavy accumulation of carotenoids. We found that the yellow filaments produced much larger amounts of hydrogen than the normal, green ones, while the nitrogenase activity ...
I, Laczkó, K, Barabás
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Protochlorophyllide Reduction in Anabaena
1987Protochlorophyllide (pchlide) reduction is an essential step in the formation of chlorophyll (chl). There are at least two enzymes which catalyse the conversion of pchlide to chlorophyllide (chlide): the light-dependent enzyme, NADPH-pchlide oxidoreductase (EC.1.6.99.1) (1) and an uncharacterised light-independent enzyme.
Heather Adamson +3 more
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The electrodialysis of anabaena flos-aquae A-37
Biochimica et Biophysica Acta (BBA) - General Subjects, 1968Electrodialysis method for depleting positive Na, K, Ca and Mg ions from Anabaena flos-aquae A-37, noting algae survival ...
R G, Tischer +3 more
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Protein HU from the cyanobacterium Anabaena
Biochimie, 1994Protein HU was purified from the cyanobacterium Anabaena 7120. Its complete amino acid sequence was determined by automated Edman degradation of the whole protein and of CNBr and chymotryptic peptides. The active DNA-binding protein is a homodimer of 94-amino acid subunits.
R, Nagaraja, R, Haselkorn
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THE ROLE OF ANABAENA IN THE AZOLLA‐ANABAENA SYMBIOSIS
New Phytologist, 1977SUMMARYThe Anabaena cells in Azolla undergo a developmental pattern of differentiation parallel to that of the fern. At the apex, the algal cells are small and rapidly dividing, and do not fix atmospheric nitrogen. After the leaf cavities are colonized, the algal cells form heterocysts, fix nitrogen and the vegetative cells enlarge considerably.
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A phytohaemagglutinin from the Azolla-anabaena symbiosis
Biochemical and Biophysical Research Communications, 1981Abstract Proteins recovered from cell-free extracts of the Azolla-Anabaena azollae symbiosis exhibited haemagglutination activity; galactose was the most effective carbohydrate tested in preventing haemagglutination. Extracts of cyanobacteria-free Azolla also caused haemagglutination but extracts of free-living or symbiotic Anabaena azollae did
Mellor, R. B. +3 more
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Photochromism ofAnabaenaSensory Rhodopsin
Journal of the American Chemical Society, 2007Protein-controlled photochemical reactions often mediate biological light-signal and light-energy conversions. Microbial rhodopsins possess all-trans or 13-cis retinal as the chromophore in the dark, and in the light-driven proton pump, bacteriorhodopsin (BR), the stable photoproduct at the end of the functional cycle of the all-trans form is 100% all ...
Akira, Kawanabe +3 more
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Tungsten-induced inactivation of molybdoenzymes in Anabaena
Biochimica et Biophysica Acta (BBA) - Enzymology, 1980The effect of tungsten on growth and activity of two molybdoenzymes has been studied in a nitrogen-fixing heterocystous cyanobacterium, Anabaena. Sodium tungstate inhibited growth and inactivated nitrogenase and nitrate reductase. The activity of both enzymes was restored by the addition of molybdenum.
A, Kumar, H D, Kumar
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Action of lysozyme on Anabaena ambigua Rao
Archiv f�r Mikrobiologie, 1973Lysozyme attacks the walls of the vegetative cells and produces protoplasts. The wall of the heterocyst is not affected, but the polar region is elongated linearly to form thick and long stalks. Unequal elongation of the stalks results in the pushing out of the protoplast from the shell of the heterocyst.
N C, Bhattacharya, E R, Talpasayi
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The Azolla — Anabaena Azzolae Symbiosis
1977Free-living, nitrogen fixing blue-green algae occur in soils and in both fresh water and marine habitats from the tropics to the antarctic.l–3 Moreover, symbiotic relationships with nitrogen-fixing blue-green algae encompass members of a relatively large and diverse segment of the plant kingdom.
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