STUDIES ON THE TOXICITY OF POLYMYXIN B TO BLUE-GREEN ALGAE

1967 ◽  
Vol 13 (8) ◽  
pp. 987-993 ◽  
Author(s):  
B. A. Whitton
Keyword(s):  
Cell Density ◽  
Green Algae ◽  
Polymyxin B ◽  
Anacystis Nidulans ◽  
Blue Green Algae ◽  
Toxicity Level

A study was made on the toxicity of polymyxin B to two blue-green algae. Above a critical cell density, the toxicity level of polymyxin related to cell density of Anacystis nidulans and Chlorogloea fritschii was approximately linear. Below this the toxicity level was almost independent of cell density. Polymyxin was much more toxic to A. nidulans in the light than in the dark. Contrary to what might be expected from the known properties of polymyxin, no interference with polymyxin toxicity by any cation could be detected.

scholarly journals Epipelic Algae in Hemren Reservoir , Iraq

2007 ◽  
Vol 4 (2) ◽  
pp. 208-214
Author(s):  
Baghdad Science Journal
Keyword(s):  
Seasonal Variation ◽  
Cell Density ◽  
Green Algae ◽  
Blue Green Algae ◽  
Nitzschia Palea ◽  
Two Peaks ◽  
Achnanthes Minutissima

The study includes the epipelic algae in Hemren reservoir, for the period between Januarys to October 2000 .The samples were collected from three selected sites at north, middle and south of reservoir. A total of 96 taxa of epipelic algae were identified. The diatoms were the dominated by 82 taxa represented 85.4% of the total identified species, followed by blue-green algae (cyanophyta) of 6.3 taxa (6%), and then green algae (chlorophyta) of 5.2 taxa (5%). One species was recorded for each crysophyta, euglenophyta and pyrrophyta. The seasonal variation for the cell density showed two peaks during spring and autumn seasons. Few species were dominated during the most studied period such as Achnanthes minutissima, Navicula cryptocephala, N. cryptocephala var . veneta and Nitzschia palea .

Effects of High Boron Concentrations on Nitrate Utilization and Photosynthesis in Blue-green Algae Anabaena PCC 7119 and Anacystis nidulans

1987 ◽  
Vol 128 (1-2) ◽  
pp. 161-168 ◽  
Author(s):  
P. Mateo ◽  
F. Martínez ◽  
I. Bonilla ◽  
E. Fernandez Valiente ◽  
E. Sanchez Maeso
Keyword(s):  
Green Algae ◽  
Anacystis Nidulans ◽  
Blue Green Algae ◽  
High Boron

Cellular Effects of Herbicide Simazine on Blue-Green Algae

1982 ◽  
Vol 40 ◽  
pp. 324-325
Author(s):  
R.S. Mehta ◽  
K.W. Hawxby
Keyword(s):  
Green Algae ◽  
Green Alga ◽  
Anacystis Nidulans ◽  
Blue Green Alga ◽  
Blue Green Algae ◽  
Cellular Effects

This study is sought to compare the effects of herbicide simazine (2-chloro 4,-6-bis (ethylamino)-S-triazine) on cellular corrponents of control and the treated cells of the blue-green alga (cyanobacterium) Anacystis nidulans, which are well defined and documented. The extent to which this initial interpretation of observations are realities, must be determined by biochemical and perhaps cytochemical techniques as well.

Testing whether samples of blue-green algae have the same cell density

2001 ◽  
Vol 12 (3) ◽  
pp. 251-271
Author(s):  
Geoff M. Laslett ◽  
Ray Correll
Keyword(s):  
Cell Density ◽  
Green Algae ◽  
Blue Green Algae
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