Moraxella, Acinetobacter, and the Mimeae

Henriksen, S. D.

doi:10.1128/br.37.4.522-561.1973

Cited by 118 publications

(18 citation statements)

References 250 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The saccharolytic NFB (Table 8) extensively attack both carbohydrates and salts. The acidification of some carbohydrates (arabinose, cellobiose, galactose, glucose, mannose, maltose, lactose, ribose, and xylose) by A. anitratus is caused by a nonspecific aldose dehydrogenase, which oxidizes them to their corresponding sugar acids (4,15). Thus, only one sugar need by assayed to separate A. anitratus from A. Iwoffi.…”

Section: Resultsmentioning

confidence: 99%

Rapid method for identification of gram-negative, nonfermentative bacilli

Otto¹,

Pickett²

1976

J Clin Microbiol

View full text Add to dashboard Cite

A rapid system (OA), based on oxidative attack of substrates, was developed for identification of gram-negative, nonfermentative bacillia (NFB). One hundred and twelve strains of NFB from 25 species (representing the genera Pseudomonas, Alcaligenes, Acinetobacter, Bordetella, Flavobacterium, Moraxella, and Xanthomonas) were assayed by OA, buffered single substrate, and oxidative/fermentative methods. The 38 substrates consisted of salts of organic acids, nitrogen-containing compounds, alcohols, and carbohydrates. Ninety-four percent of the test strains were identified by the OA method in 24 h, and 99% were identifiable in 48 h. Reproducibility was 99%. Correlation with buffered single substrate was 98% (all substrates) and 90% with the oxidative/fermentative method (carbohydrates only). Biochemical profiles of all strains are presented, as well as tables showing the most useful tests for identification.

show abstract

Section: Resultsmentioning

confidence: 99%

Rapid method for identification of gram-negative, nonfermentative bacilli

Otto¹,

Pickett²

1976

J Clin Microbiol

View full text Add to dashboard Cite

show abstract

“…Nonfermentative and oxidase (OXI)-producing, fermentative gram-negative rods have been isolated from patients and the hospital environment with increasing frequency, and their clinical significance has been established (3,5,6,12,16,19,20). Despite the low degree of virulence and limited invasiveness of these organisms, they have been isolated from genitourinary and respiratory tracts, wounds, blood, and other body fluids of hospitalized patients and implicated as causative agents of sepsis, extensive suppurative lesions, or septic shock (1,17).…”

mentioning

confidence: 99%

Accuracy and reproducibility of the Oxi/Ferm system in identifying a select group of unusual gram-negative bacilli

Nadler¹,

George²,

Barr³

1979

J Clin Microbiol

View full text Add to dashboard Cite

The Oxi/Ferm (O/F) identification system was compared in a double-blind study to a conventional test battery for the characterization of 96 reference and clinical strains consisting of 83 nonfermentative and 13 oxidase-producing, fermentative gram-negative bacilli. The O/F tube and supplemental tests correctly identified 84% of the nonfermentative and 77% of the oxidase-producing, fermentative bacilli. However, when the supplemental tests were excluded and the biochemical profiles generated by all nine O/F tube reactions were examined, the profile accuracy reached 95% (79 of 83) for the nonfermentative and 93% (12 of 13) for oxidase-producing, fermentative bacilli. Seven of the nine O/F substrate reactions demonstrated less than or equal to 89% agreement with conventional reactions, whereas the urea and arginine reactions provided 82 and 85% agreement, respectively. Replicate O/F tests with six selected organisms demonstrated 97% identification reproducibility and 84% overall substrate reproducibility. The mean O/F identification time was 2.6 days as compared to 3.3 days for the conventional system. Although this study suggests that the O/F system is a convenient, rapid, and accurate alternative to conventional identification methods, several modifications are recommended.

show abstract

“…Τα βακτήρια αυτά διατάσσονται συνήθως σε ζεύγη και σπανιότερα σε μικρές αλυσίδες. Ολα τα Acinetobacter δεν έχουν την ικανότητα κίνησης, είναι αρνητικά στο Gram test, και στο test-οξειδάσης και θετικά στο test-καταλάσης (Henriksen, 1973;Juni, 1978). Τα βακτήρια αυτά απαιτούν οξυγόνο για τον καταβολικό μεταβολισμό (Juni, 1978), ωστόσο έχουν αναφερθεί κάποια είδη τα οποία μπορούν να χρησιμοποιούν νιτρικά σαν τελικό αποδέκτη ηλεκτρονίων απουσία οξυγόνου (Lötter, 1985).…”

Section: περιεχομενοι πινακεςunclassified

Μελετη Της Διεργασιας Της Βιολογικης Απομακρυνσης Φωσφορου Απο Τα Υγρα Αποβληταμε Χρηση Καθαρης Και Μικτης Καλλιεργειας

Ζαφειρη¹

View full text Add to dashboard Cite

Biological phosphorus removal is a biological process responsible for the removal of phosphorus in advanced wastewater treatment plants. Biological phosphorus removal is accomplished by several microorganisms called poly-P bacteria mainly strains of the genus Acinetobacter which have the ability to accumulate phosphorus in excess of their normal cell requirements. The enrichment of an activated sludge plant with a phosphorus removing bacterial population is achieved by sludge recirculation through aerobic and anaerobic zones.Laboratory-scale batch experiments were conducted for a pure culture of Acinetobacter sp. in order to develop a kinetic model that adequately describes the aerobic growth, the behaviour of the bacterium under anaerobic conditions and the transient characteristics of the bacterial cells to changes from anaerobic to aerobic environment and vice-versa. The primary nutrients of interest in the proposed mathematical model were the soluble phosphates and organic carbon and the intracellular polyphosphates and carbon reserves.Experiments were also carried out in a Sequencing Batch Reactor (SBR) using a pure culture of Acinetobacter sp. and synthetic medium in order to secure reproducibility of experimental data. The experimental results showed that phosphorus accumulation in the bacterial cells proved to be dependent on the operational pH.In the sequel, laboratory-scale experiments were conducted in an SBR system using activated sludge as inoculum. The aim of these experiments was to study the behaviour of a mixed culture biological phosphorus removing system.The kinetic model developed for the pure culture οι Acinetobacter sp. was used for predicting the performance of the SBR system under aerobic conditions at different steady states of operation.

show abstract

Moraxella, Acinetobacter, and the Mimeae

Cited by 118 publications

References 250 publications

Rapid method for identification of gram-negative, nonfermentative bacilli

Rapid method for identification of gram-negative, nonfermentative bacilli

Accuracy and reproducibility of the Oxi/Ferm system in identifying a select group of unusual gram-negative bacilli

Μελετη Της Διεργασιας Της Βιολογικης Απομακρυνσης Φωσφορου Απο Τα Υγρα Αποβληταμε Χρηση Καθαρης Και Μικτης Καλλιεργειας

Contact Info

Product

Resources

About