Blue green alga mediated synthesis of gold nanoparticles and its antibacterial efficacy against Gram positive organisms

2015 ◽  
Vol 47 ◽  
pp. 351-356 ◽  
Author(s):  
K.S. Uma Suganya ◽  
K. Govindaraju ◽  
V. Ganesh Kumar ◽  
T. Stalin Dhas ◽  
V. Karthick ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Green Alga ◽  
Antibacterial Efficacy ◽  
Blue Green Alga ◽  
Gram Positive

Mesosome-like Structures in a Blue-green Alga, Phormidium Luridum

1970 ◽  
Vol 28 ◽  
pp. 180-181
Author(s):  
Mercedes R. Edwards
Keyword(s):  
Plasma Membrane ◽  
Cell Division ◽  
Dna Replication ◽  
Green Alga ◽  
Photosynthetic Bacteria ◽  
Blue Green Alga ◽  
Gram Positive ◽  
Gram Positive Bacteria ◽  
Lamellar Structures ◽  
Septum Formation

The invagination of the plasma membrane (plasmalemma) to form vesicular or lamellar structures, usually called mesosomes (l) or plasmalemmosomes (2), has been extensively documented in bacteria (3) and more recently also in lower eucaryotes (e.g., the fungi, 4). Such structures have “been implicated in septum formation (i.e., cell division of gram-positive bacteria), in respiratory reactions, and in DNA replication.In photosynthetic bacteria, such as Rhodospirilium rubrum, vesicular structures derived from the plasma membrane were shown by Drews and Giesbrecht (5) to give rise to thylakoids (photosynthetic vesicles or chromatophores). Continuation between the plasma and thylakoidal membranes is readily seen in R. rubrum (6).

Effect of Iron Limitation on the Ultrastructure of Agmenellum Quadruplicatum

1981 ◽  
Vol 39 ◽  
pp. 410-411
Author(s):  
L. P. Hardie ◽  
D. L. Balkwill ◽  
S. E. Stevens
Keyword(s):  
Growth Medium ◽  
Green Alga ◽  
Natural Habitat ◽  
Iron Limitation ◽  
Natural Environments ◽  
Blue Green Alga ◽  
Marine Cyanobacterium ◽  
Natural Systems ◽  
Thin Sectioning ◽  
Agmenellum Quadruplicatum

Agmenellum quadruplicatum is a unicellular, non-nitrogen-fixing, marine cyanobacterium (blue-green alga). The ultrastructure of this organism, when grown in the laboratory with all necessary nutrients, has been characterized thoroughly. In contrast, little is known of its ultrastructure in the specific nutrient-limiting conditions typical of its natural habitat. Iron is one of the nutrients likely to limit this organism in such natural environments. It is also of great importance metabolically, being required for both photosynthesis and assimilation of nitrate. The purpose of this study was to assess the effects (if any) of iron limitation on the ultrastructure of A. quadruplicatum. It was part of a broader endeavor to elucidate the ultrastructure of cyanobacteria in natural systemsActively growing cells were placed in a growth medium containing 1% of its usual iron. The cultures were then sampled periodically for 10 days and prepared for thin sectioning TEM to assess the effects of iron limitation.

Effects of amino acids on the blue-green alga (cyanobacteria) Tolypothrix scytonemoides (Gardner) Geitler

2006 ◽  
Vol 8 (3) ◽  
pp. 286-293
Author(s):  
Uma Maheshwari Rajendran ◽  
Elango Kathirvel ◽  
Anand Narayanaswamy
Keyword(s):  
Amino Acids ◽  
Green Alga ◽  
Blue Green Alga

scholarly journals Uridine Diphosphate Galacturonate 4-Epimerase from the Blue-Green Alga Anabaena flos-aquae

1974 ◽  
Vol 249 (8) ◽  
pp. 2366-2372
Author(s):  
Mary A. Gaunt ◽  
Utpalendu S. Maitra ◽  
Helmut Ankel
Keyword(s):  
Green Alga ◽  
Uridine Diphosphate ◽  
Blue Green Alga

scholarly journals Superoxide dismutases from a blue-green alga, Plectonema boryanum.

1975 ◽  
Vol 250 (8) ◽  
pp. 2801-2807 ◽  
Author(s):  
K Asada ◽  
K Yoshikawa ◽  
M Takahashi ◽  
Y Maeda ◽  
K Enmanji
Keyword(s):  
Green Alga ◽  
Superoxide Dismutases ◽  
Blue Green Alga ◽  
Plectonema Boryanum
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