Nomenclature Abstract for Nocardia amarae Lechevalier and Lechevalier 1974 (Approved Lists 1980).

2003 ◽  
Author(s):  
Charles Thomas Parker ◽  
George M Garrity
Keyword(s):  
Nocardia Amarae

Dispelling the “Nocardia amarae” myth: a phylogenetic and phenotypic study of mycolic acid-containing actinomycetes isolated from activated sludge foam

2002 ◽  
Vol 46 (1-2) ◽  
pp. 81-90 ◽  
Author(s):  
F.M. Stainsby ◽  
J. Soddell ◽  
R. Seviour ◽  
J. Upton ◽  
M. Goodfellow
Keyword(s):  
Activated Sludge ◽  
16S Rdna ◽  
Mycolic Acid ◽  
Mass Spectrometric ◽  
Morphological Data ◽  
Morphological Properties ◽  
Microscopic Approach ◽  
Nocardia Species ◽  
Mixed Liquor ◽  
Nocardia Amarae

Right-angle branched filaments and rods micromanipulated from activated sludge foam and mixed liquor were identified as putatively novel members of the genera Gordonia, Mycobacterium and Rhodococcus using a combination of chemical, molecular and morphological data. Pyrolysis mass spectrometric analyses of gordoniae isolated in both the present and a previous study revealed pyro-groups, distinct from validly described Gordonia species, which could be equated with those based on morphological properties and 16S rDNA data. Putative gordoniae assigned to one of these groups were found to be closely related to strains currently identified as “Rhodococcus australis”. These strains were also found to have properties consistent with their classification in the genus Gordonia. The results of this study highlight the limitations of the microscopic approach to filament identification and cast further doubt on the view that foaming can be attributed to members of one or a few Nocardia species.

scholarly journals Synergetic flocculation of the bioflocculant fix extracellularly produced by Nocardia amarae.

1991 ◽  
Vol 37 (5) ◽  
pp. 447-454 ◽  
Author(s):  
JUN-ICHI KOIZUMI ◽  
MINORU TAKEDA ◽  
RYUICHIRO KURANE ◽  
ISEI NAKAMURA
Keyword(s):  
Nocardia Amarae

Phylogenetic Analysis and Taxonomic History of Nocardia pinensis and Nocardia amarae

1995 ◽  
Vol 17 (4) ◽  
pp. 519-525 ◽  
Author(s):  
Linda L. Blackall ◽  
Stephen C. Barker ◽  
Philip Hugenholtz
Keyword(s):  
Phylogenetic Analysis ◽  
Taxonomic History ◽  
History Of ◽  
Nocardia Amarae

scholarly journals Analysis of Nocardia amarae Profiles in Sequencing Fed-Batch Culture of Activated Sludge.

2000 ◽  
Vol 36 (2) ◽  
pp. 63-70 ◽  
Author(s):  
KEISUKE IWAHORI ◽  
HIRONORI TAKI ◽  
TAEK RYUL CHOI ◽  
MASANORI FUJITA
Keyword(s):  
Activated Sludge ◽  
Batch Culture ◽  
Fed Batch ◽  
Fed Batch Culture ◽  
Nocardia Amarae

Actinomycete Scum Problems in Australian Activated Sludge Plants

1988 ◽  
Vol 20 (11-12) ◽  
pp. 493-495 ◽  
Author(s):  
Linda L. Blackall ◽  
Anne E. Harbers ◽  
P. F. Greenfield ◽  
A. C. Hayward
Keyword(s):  
Activated Sludge ◽  
Significant Problem ◽  
Foam Formation ◽  
Technical Problems ◽  
Bubble Separation ◽  
Amount Of Information ◽  
Separation Theory ◽  
Nocardia Amarae ◽  
Liquid Surfaces

The formation of extensive, biological foams or scums on the liquid surfaces of domestic activated sludge plants in Australia was investigated. A survey of the problem in Queensland and Australia was carried out; the dominant organisms in the foam were isolated and identified; their physiology was investigated and the intrinsic reasons for foam formation were explored in the laboratory. Foaming in activated sludge plants was found to be a significant problem in Australia. Greater than 90% of plants in Queensland have experienced biological foaming episodes, whilst in 38% of the plants the problem was continuously present. Nocardia amarae and a newly described actinomycete Nocardia pinensis were the dominant organisms isolated from the foam. Plants that contained N. pinensis in the scum were found to be operated at long sludge ages. Although technical problems were experienced with chemostat methodology when applied to N. amarae, a limited amount of information about their physiology was obtained. The cells of N. amarae were found to be hydrophobic and a surfactant(s) was produced in culture. These are properties which suggest an explanation for the mechanism of foam formation based upon adsorptive bubble separation theory.

Formation of Stable Foam by the Cells and Culture Supernatant of Gordonia (Nocardia) amarae.

2001 ◽  
Vol 92 (1) ◽  
pp. 77-79 ◽  
Author(s):  
KEISUKE IWAHORI ◽  
TAKAAKI TOKUTOMI ◽  
NAOYUKI MIYATA ◽  
MASANORI FUJITA
Keyword(s):  
Culture Supernatant ◽  
Stable Foam ◽  
Nocardia Amarae

Use of Biosurfactants Produced by Nocardia Amarae for Removal and Recovery of Non-Ionic Organics from Aqueous Solutions

1992 ◽  
Vol 26 (9-11) ◽  
pp. 2393-2396 ◽  
Author(s):  
R. Sutton
Keyword(s):  
Carbon Source ◽  
Sodium Dodecylsulfate ◽  
Sorption Process ◽  
Synthetic Surfactant ◽  
Organic Chemical ◽  
Removal Mechanism ◽  
Illinois Institute ◽  
Institute Of Technology ◽  
Nocardia Amarae ◽  
Removal And Recovery

Biosurfactant produced by Nocardia amarae grown on hexadecane as a carbon source is being investigated for use in a surfactant/non-ionic organic chemical (NOC) sorption process. Recent experiments at the Illinois Institute of Technology give favorable results using the synthetic surfactant sodium dodecylsulfate (SDS) adsorbed onto ferrihydrite as a removal mechanism for NOC's. Biosurfactant is isolated, characterized, and tested for its adsorbability onto ferrihydrite as well as its potential for NOC removal. Results are being compared to work completed on synthetic surfactant/NOC removal.

scholarly journals Characterization of Nocardia amarae as a Potent Biological Coalescing Agent of Water-Oil Emulsions

1982 ◽  
Vol 43 (2) ◽  
pp. 362-366 ◽  
Author(s):  
William L. Cairns ◽  
David G. Cooper ◽  
James E. Zajic ◽  
Joan M. Wood ◽  
Naim Kosaric
Keyword(s):  
Oil Emulsions ◽  
Nocardia Amarae
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