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Open AccessJournal ArticleDOI

Lysis of Bacterial Cell Walls by an Enzyme Isolated from a Myxobacter

TLDR
An exoenzyme which lyses intact cells, heat-killed cells, and cell walls of Arthrobacter crystallopoietes was purified 60-fold from the growth liquor obtained from a myxobacter (strain AL-1).
Abstract
Ensign, J. C. (University of Illinois, Urbana), and R. S. Wolfe. Lysis of bacterial cell walls by an enzyme isolated from a myxobacter. J. Bacteriol. 90:395–402. 1965.—An exoenzyme which lyses intact cells, heat-killed cells, and cell walls of Arthrobacter crystallopoietes was purified 60-fold from the growth liquor obtained from a myxobacter (strain AL-1). The lytic enzyme was produced during growth of the organism in a number of complex media, the maximal amount of enzyme being produced in yeast extract broth. The purified enzyme lysed at different rates a number of gram-positive bacteria. With the exception of Rhodospirillum rubrum, Spirillum itersonii, and S. serpens, the gram-negative bacteria tested were not attacked.

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Mechanism of action of penicillins: a proposal based on their structural similarity to acyl-D-alanyl-D-alanine.

TL;DR: A clone of fibroblasts (C13), derived from the BHK-21 line,' was obtained from Professor M. Stoker, Giasgow, Scotland, and was used at the 80th-lOOth generations since cloning.
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Lysobacter, a New Genus of Nonfruiting, Gliding Bacteria with a High Base Ratio

TL;DR: Forty-six isolates were studied in detail, among them Ensign and Wolfe's organism AL-1 and Cook's isolate 495, both of which produce important proteases, as well as Cook's culture 3C, which elaborates the potent, wide-spectrum antibiotic myxin.
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Biomethanization of the Organic Fraction of Municipal Solid Wastes

TL;DR: Analysis and optimisation of the anaerobic digestion of the organic fraction of municipal solid waste and its role in bioreactor landfills.
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Cell density-dependent growth of Myxococcus xanthus on casein.

TL;DR: Demonstration of cooperative growth at higher cell densities supports the suggestion that the communal behavior of myxobacteria results in more efficient feeding, and suggests cooperative hydrolysis of casein.
References
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Journal Article

Protein Measurement with the Folin Phenol Reagent

TL;DR: Procedures are described for measuring protein in solution or after precipitation with acids or other agents, and for the determination of as little as 0.2 gamma of protein.
Journal ArticleDOI

Lysostaphin: a new bacteriolytic agent for the staphylococcus.

TL;DR: A chronology of key events and publications: 1.
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Nutritional requirements for vegetative growth of myxococcus xanthus

TL;DR: By use of a dispersed-growing strain of Myxococcus xanthus, the nutritional requirements for vegetative growth have been defined and, with the exception of glycogen, a variety of organic materials do not significantly stimulate growth.
Journal ArticleDOI

Studies on Nonfruiting Myxobacteria: I. Cytophaga johnsonae, n.sp., a Chitin-decomposing Myxobacterium.

TL;DR: The concept of myxobacteria as a microbial assemblage characterized by a complex life cycle involving a unicellular phase of vegetative proliferation and a communal phase of fructification was clearly expressed by Thaxter (1892) in the first detailed publication dealing with the group.
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