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

2003 ◽  
Author(s):  
Charles Thomas Parker ◽  
George M Garrity
Keyword(s):  
2002 ◽  
Vol 46 (1-2) ◽  
pp. 81-90 ◽  
Author(s):  
F.M. Stainsby ◽  
J. Soddell ◽  
R. Seviour ◽  
J. Upton ◽  
M. Goodfellow

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.


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

1995 ◽  
Vol 17 (4) ◽  
pp. 519-525 ◽  
Author(s):  
Linda L. Blackall ◽  
Stephen C. Barker ◽  
Philip Hugenholtz

2000 ◽  
Vol 36 (2) ◽  
pp. 63-70 ◽  
Author(s):  
KEISUKE IWAHORI ◽  
HIRONORI TAKI ◽  
TAEK RYUL CHOI ◽  
MASANORI FUJITA

1988 ◽  
Vol 20 (11-12) ◽  
pp. 493-495 ◽  
Author(s):  
Linda L. Blackall ◽  
Anne E. Harbers ◽  
P. F. Greenfield ◽  
A. C. Hayward

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.


2001 ◽  
Vol 92 (1) ◽  
pp. 77-79 ◽  
Author(s):  
KEISUKE IWAHORI ◽  
TAKAAKI TOKUTOMI ◽  
NAOYUKI MIYATA ◽  
MASANORI FUJITA

1992 ◽  
Vol 26 (9-11) ◽  
pp. 2393-2396 ◽  
Author(s):  
R. Sutton

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.


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

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