Vertical distribution and characterization of aerobic phototrophic bacteria at the Juan de Fuca Ridge in the Pacific Ocean

2008 ◽  
Vol 97 (3) ◽  
pp. 235-244 ◽  
Author(s):  
Christopher Rathgeber ◽  
Michael T. Lince ◽  
Jean Alric ◽  
Andrew S. Lang ◽  
Elaine Humphrey ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Vertical Distribution ◽  
Phototrophic Bacteria ◽  
Juan De Fuca Ridge ◽  
Fuca Ridge ◽  
The Pacific ◽  
Juan De Fuca ◽  
The Pacific Ocean ◽  
Aerobic Phototrophic Bacteria

scholarly journals Isolation of Tellurite- and Selenite-Resistant Bacteria from Hydrothermal Vents of the Juan de Fuca Ridge in the Pacific Ocean

2002 ◽  
Vol 68 (9) ◽  
pp. 4613-4622 ◽  
Author(s):  
Christopher Rathgeber ◽  
Natalia Yurkova ◽  
Erko Stackebrandt ◽  
J. Thomas Beatty ◽  
Vladimir Yurkov
Keyword(s):  
Hydrothermal Vents ◽  
Deep Ocean ◽  
Juan De Fuca Ridge ◽  
Resistant Bacteria ◽  
Ocean Water ◽  
Bacterial Films ◽  
The Pacific ◽  
Juan De Fuca ◽  
The Pacific Ocean ◽  
Reducing Bacteria

ABSTRACT Deep-ocean hydrothermal-vent environments are rich in heavy metals and metalloids and present excellent sites for the isolation of metal-resistant microorganisms. Both metalloid-oxide-resistant and metalloid-oxide-reducing bacteria were found. Tellurite- and selenite-reducing strains were isolated in high numbers from ocean water near hydrothermal vents, bacterial films, and sulfide-rich rocks. Growth of these isolates in media containing K2TeO3 or Na2SeO3 resulted in the accumulation of metallic tellurium or selenium. The MIC of K2TeO3 ranged from 1,500 to greater than 2,500 μg/ml, and the MIC of Na2SeO3 ranged from 6,000 to greater than 7,000 μg/ml for 10 strains. Phylogenetic analysis of 4 of these 10 strains revealed that they form a branch closely related to members of the genus Pseudoalteromonas, within the γ-3 subclass of the Proteobacteria. All 10 strains were found to be salt tolerant, pH tolerant, and thermotolerant. The metalloid resistance and morphological, physiological, and phylogenetic characteristics of newly isolated strains are described.

Distribution of 65Zn In Tissues of Two Marine Crustaceans Determined by Autoradiography

1968 ◽  
Vol 25 (11) ◽  
pp. 2461-2466 ◽  
Author(s):  
F. A. Cross ◽  
S. W. Fowler ◽  
J. M. Dean ◽  
L. F. Small ◽  
C. L. Osterberg
Keyword(s):  
Pacific Ocean ◽  
Vertical Distribution ◽  
Food Web ◽  
Euphausia Pacifica ◽  
Oregon Coast ◽  
Marine Crustaceans ◽  
The Pacific ◽  
The Pacific Ocean ◽  
The Vertical Distribution

In the benthic amphipod Anonyx sp., and the euphausiid Euphausia pacifica Hansen, 65Zn accumulated from seawater was shown by autoradiography to be localized predominantly in the exoskeleton and interstitial spaces of the myofibrils. Also, the gut and hepatopancreas of Anonyx sp. and the eye of E. pacifica contained 65Zn. The presence of 65Zn in crustacean exoskeletons may affect the efficiency of transfer of 65Zn through the food web and the vertical distribution of 65Zn in the Pacific Ocean along the Oregon coast.

Sign in / Sign up

Export Citation Format

Share Document