Ancalomicrobium †,

Proteobacteria
Alphaproteobacteria
Rhizobiales
Hyphomicrobiaceae
Cheryl Jenkins

Cheryl Jenkins

University of Washington, Department of Microbiology, Seattle, WA, 98195-0001 USA

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Patricia M. Stanley

Patricia M. Stanley

Minntech Corporation, North, Minneapolis, MN, 55447-4822 USA

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James T. Staley

James T. Staley

University of Washington, Department of Microbiology, Seattle, WA, 98195-0001 USA

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First published: 14 September 2015
Staley 1968, 1940AL
Published by John Wiley & Sons, Inc., in association with Bergey's Manual Trust.

Abstract

An.ca' lo.mi.cro' bi.um. Gr. masc. n. ancalos arm; Gr. adj. micros small; Gr. masc. n. bios life; M.L. neut. n. Ancalomicrobium arm (-producing) microorganism.

Proteobacteria / Alphaproteobacteria / Rhizobiales / Hyphomicrobiaceae / Ancalomicrobium

Unicellular bacterium with conical cells ~1.0 µm in diameter. Two to eight or more prosthecae produced per cell. Prosthecae are cylindrical without crossbands and taper gradually from cell to a distal diameter of ~0.2 µm and a length of 2–5 µm when fully differentiated. Prosthecae may be bifurcated. Budding bacterium. Buds are formed directly from mother cell, never from prosthecae. Cells occur singly or in pairs prior to division; rarely form aggregates.

Type genus: Ancalomicrobium adetum Staley 1968, 1940.

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