scholarly journals Structure and Antiviral Activity of an Acidic Polysaccharide from an Edible Blue-green Alga, Nostoc flagelliforme

2008 ◽  
Vol 128 (5) ◽  
pp. 725-731 ◽  
Author(s):  
Kenji KANEKIYO ◽  
Kyoko HAYASHI ◽  
Jung-Bum LEE ◽  
Hiroyuki TAKENAKA ◽  
Toshimitsu HAYASHI
ChemInform ◽  
2008 ◽  
Vol 39 (40) ◽  
Author(s):  
Kenji Kanekiyo ◽  
Kyoko Hayashi ◽  
Jung-Bum Lee ◽  
Hiroyuki Takenaka ◽  
Toshimitsu Hayashi

2007 ◽  
Vol 30 (8) ◽  
pp. 1573-1575 ◽  
Author(s):  
Kenji Kanekiyo ◽  
Kyoko Hayashi ◽  
Hiroyuki Takenaka ◽  
Jung-Bum Lee ◽  
Toshimitsu Hayashi

Author(s):  
L. P. Hardie ◽  
D. L. Balkwill ◽  
S. E. Stevens

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.


2006 ◽  
Vol 8 (3) ◽  
pp. 286-293
Author(s):  
Uma Maheshwari Rajendran ◽  
Elango Kathirvel ◽  
Anand Narayanaswamy

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