IDENTIFICATION OF MEMBRANE BOUND FERREDOXIN-LIKE CENTRES IN PHOTOSYSTEM I OF BLUE-GREEN ALGAE BY MÖSSBAUER AND EPR SPECTROSCOPY

1980 ◽  
Vol 41 (C1) ◽  
pp. C1-481-C1-482
Author(s):  
J. D. Rush ◽  
C. E. Johnson ◽  
E. H. Evans ◽  
M. C.W. Evans
Keyword(s):  
Green Algae ◽  
Photosystem I ◽  
Epr Spectroscopy ◽  
Blue Green Algae ◽  
Membrane Bound

Carbonic anhydrase levels in blue-green algae

1975 ◽  
Vol 53 (20) ◽  
pp. 2385-2387 ◽  
Author(s):  
R. K. Ingle ◽  
Brian Colman
Keyword(s):  
Enzyme Activity ◽  
Carbonic Anhydrase ◽  
Green Algae ◽  
Carbonic Anhydrase Activity ◽  
Anacystis Nidulans ◽  
Blue Green Algae ◽  
Membrane Bound

Carbonic anhydrase (carbonate dehydratase, EC 4.2.1.1) activity was detected in four species of blue-green algae, Anabaena flos-aquae, Anacystis nidulans, Coccochloris peniocystis, and Oscillatoria sp., grown with air, but no significant enzyme activity was detected in these algae when grown with 5% CO2 in air. The enzyme was found not to be membrane-bound, was inhibited by 1 mM Diamox, and had an apparent Km of 15.6 mM. Carbonic anhydrase activity in all four blue-green algae was significantly lower than that reported for unicellular green algae.

Freeze-Fracture Replication in the Ultrastructure of Blue-Green Algae

1967 ◽  
Vol 25 ◽  
pp. 74-75
Author(s):  
L. V. Leak
Keyword(s):  
Cell Wall ◽  
Electron Microscope ◽  
Green Algae ◽  
Three Dimensional ◽  
Freeze Fracture ◽  
Electron Microscopic ◽  
Photosynthetic Membranes ◽  
Blue Green Algae ◽  
Cell Biol ◽  
Cellular Components

Electron microscopic observations of freeze-fracture replicas of Anabaena cells obtained by the procedures described by Bullivant and Ames (J. Cell Biol., 1966) indicate that the frozen cells are fractured in many different planes. This fracturing or cleaving along various planes allows one to gain a three dimensional relation of the cellular components as a result of such a manipulation. When replicas that are obtained by the freeze-fracture method are observed in the electron microscope, cross fractures of the cell wall and membranes that comprise the photosynthetic lamellae are apparent as demonstrated in Figures 1 & 2.A large portion of the Anabaena cell is composed of undulating layers of cytoplasm that are bounded by unit membranes that comprise the photosynthetic membranes. The adjoining layers of cytoplasm are closely apposed to each other to form the photosynthetic lamellae. Occassionally the adjacent layers of cytoplasm are separated by an interspace that may vary in widths of up to several 100 mu to form intralamellar vesicles.

New constituents from Oryza sativa L. straw and their algicidal activities against blue-green algae

2017 ◽  
Vol 40 (1) ◽  
pp. 47-62 ◽  
Author(s):  
I. M. Chung ◽  
S. H. Kim ◽  
Y.T. Oh ◽  
M. Ali ◽  
A. Ahmad
Keyword(s):  
Oryza Sativa ◽  
Green Algae ◽  
Oryza Sativa L ◽  
Blue Green Algae

ISOLATION, IDENTIFICATION AND CHARACTERIZATION OF A STRAIN OF BLUE-GREEN ALGAE-LYSING BACTERIUM FROM LAKE DIANCHI

2009 ◽  
Vol 33 (5) ◽  
pp. 860-865
Author(s):  
Lan-Lan LU ◽  
Gen-Bao LI ◽  
Yin-Wu SHEN ◽  
Ming-Ming HU ◽  
Yong-Ding LIU
Keyword(s):  
Green Algae ◽  
Lake Dianchi ◽  
Blue Green Algae ◽  
Identification And Characterization

The relationship between musty-odor-causing organisms and water quality in Lake Biwa

1995 ◽  
Vol 31 (11) ◽  
pp. 153-158 ◽  
Author(s):  
M. Kajino ◽  
K. Sakamoto
Keyword(s):  
Water Quality ◽  
Data Analysis ◽  
Green Algae ◽  
Analytical Methods ◽  
Lake Biwa ◽  
Blue Green Algae ◽  
Odor Compounds ◽  
Musty Odor ◽  
The Relationship

Musty odor has occurred annually in Lake Biwa since 1969. Osaka municipal waterworks, which is located downstream of Lake Biwa, has made many efforts to treat musty-odor compounds produced in Lake Biwa from spring through autumn. With the development of analytical methods for the determination of musty-odor compounds, we have been able to confirm that planktonic blue-green algae are the major causes of the musty-odor occurrences. The relationship between the growth of blue-green algae and the water quality was not so apparent. However, through our data analysis focusing on the relationship between musty-odor occurrences due to Phormidium tenue or Oscillatoria tenuis and some nutrients in Lake Biwa, we found that the concentration of nitrate in water may be an important parameter for the estimation of growth of the algae and the musty-odor behavior.

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