Jerald C. Ensign

Anaerobic metabolism of primary and secondary forms of Photorhabdus luminescens (1996)

Rosner, Bettina M., Ensign, Jerald C., Schink, Bernhard

An oxygen electrode inserted into a dead Manduca sexta larva infected with Heterorhabditis nematodes carrying the bacterium Photorhabdus luminescens showed barely detectable levels of oxygen in a 1...

Isolation and Characterization of Intracellular Protein Inclusions Produced by the Entomopathogenic Bacterium Photorhabdus luminescens

Bowen, David J., Ensign, Jerald C.

Cells of the entomopathogenic bacterium Photorhabdus luminescens contain two types of morphologically distinct crystalline inclusion proteins. The larger rectangular inclusion (type 1) and a smaller...

A Phosphopantetheinyl Transferase Homolog Is Essential for Photorhabdus luminescens To Support Growth and Reproduction of the Entomopathogenic Nematode Heterorhabditis bacteriophora

Ciche, Todd A., Bintrim, Scott B., Horswill, Alexander R., Ensign, Jerald C.

The bacterium Photorhabdus luminescens is a symbiont of the entomopathogenic nematode Heterorhabditis bacteriophora. The nematode requires the bacterium for infection of insect larvae and as a...

Purification and Characterization of a High-Molecular-Weight Insecticidal Protein Complex Produced by the Entomopathogenic Bacterium Photorhabdus luminescens

Bowen, David J., Ensign, Jerald C.

Photorhabdus luminescens is a gram-negative enteric bacterium that is found in association with entomopathogenic nematodes of the family Heterorhabditidae. The nematodes infect a variety of...

Insertional Inactivation of Genes Encoding the Crystalline Inclusion Proteins of Photorhabdus luminescens Results in Mutants with Pleiotropic Phenotypes

Bintrim, Scott B., Ensign, Jerald C.

The entomopathogenic bacterium Photorhabdus luminescens exhibits phase variation when cultured in vitro. The variant forms of P. luminescens are pleiotropic and are designated phase I and phase II...

For the Insect Pathogen Photorhabdus luminescens, Which End of a Nematode Is Out?

Ciche, Todd A., Ensign, Jerald C.

The nematode Heterorhabditis bacteriophora is the vector for transmitting the entomopathogenic bacterium Photorhabdus luminescens between insect larvae. The dauer juvenile (DJ) stage nematode...

Photobactin: a Catechol Siderophore Produced by Photorhabdus luminescens, an Entomopathogen Mutually Associated with Heterorhabditis bacteriophora NC1 Nematodes

Ciche, Todd A., Blackburn, Michael, Carney, John R., Ensign, Jerald C.

The nematode Heterorhabditis bacteriophora transmits a monoculture of Photorhabdus luminescens bacteria to insect hosts, where it requires the bacteria for efficient insect pathogenicity and as a...

Viability and Endogenous Substrates Used During Starvation Survival of Rhodospirillum rubrum†

Breznak, John A., Potrikus, C. J., Pfennig, Norbert, Ensign, Jerald C.

Cells of Rhodospirillum rubrum were grown photoorganotrophically and chemoorganotrophically and then starved for organic carbon and combined nitrogen under four conditions: anaerobically in the light...

Long-Term Starvation Survival of Rod and Spherical Cells of Arthrobacter crystallopoietes

Ensign, Jerald C.

Spherical and rod-shaped cells of Arthrobacter crystallopoietes, harvested during exponential growth, were subjected to total starvation for periods of time as long as 80 days. Viability measurements...

Intracellular Substrates for Endogenous Metabolism During Long-Term Starvation of Rod and Spherical Cells of Arthrobacter crystallopoietes

Boylen, Charles W., Ensign, Jerald C.

Cells of Arthrobacter crystallopoietes, harvested during growth as spheres and as rods, were starved by shaking at 30 C in phosphate buffer for 30 days, during which time they maintained 100%...

Sphere-Rod Morphogenesis in Arthrobacter crystallopoietes I. Cell Wall Composition and Polysaccharides of the Peptidoglycan1

Krulwich, Terry A., Ensign, Jerald C., Tipper, Donald J., Strominger, Jack L.

Cell walls of Arthrobacter crystallopoietes were prepared from cells grown as spheres and from peptone- and succinate-induced rod stage cells. Undegraded polysaccharide backbones of the...

Sphere-Rod Morphogenesis in Arthrobacter crystallopoietes II. Peptides of the Cell Wall Peptidoglycan1

Krulwich, Terry A., Ensign, Jerald C., Tipper, Donald J., Strominger, Jack L.

Cell walls of Arthrobacter crystallopoietes grown as spheres and as rods were solubilized by treatment with the B enzyme from Chalaropsis, an N-acetylmuramidase. The neutral glycopeptides were then...

Ratio of Teichoic Acid and Peptidoglycan in Cell Walls of Bacillus subtilis Following Spore Germination and During Vegetative Growth

Boylen, Charles W., Ensign, Jerald C.

Cell walls were isolated from cells of Bacillus subtilis strain Marburg during synchronous outgrowth of spores, during the two synchronous cell divisions which followed, and at various times during...

Isolation and Characterization of Three Autolytic Enzymes Associated with Sporulation of Bacillus thuringiensis var. thuringiensis1

Kingan, Steven L., Ensign, Jerald C.

Cells of Bacillus thuringiensis containing refractile spores autolyzed readily when suspended in buffer. The autolysate contained enzymes which lysed vegetative cell walls of the organism. Three...

NUTRITIONAL CONTROL OF MORPHOGENESIS IN ARTHROBACTER CRYSTALLOPOIETES

Ensign, Jerald C., Wolfe, R. S.

Ensign, Jerald C. (University of Illinois, Urbana), and R. S. Wolfe. Nutritional control of morphogenesis in Arthrobacter crystallopoietes. J. Bacteriol. 87:924–932. 1964.—Arthrobacter...

Isolation and Characterization of Intracellular Protein Inclusions Produced by the Entomopathogenic Bacterium Photorhabdus luminescens

Bowen, David J., Ensign, Jerald C.

Cells of the entomopathogenic bacterium Photorhabdus luminescens contain two types of morphologically distinct crystalline inclusion proteins. The larger rectangular inclusion (type 1) and a smaller...

A Phosphopantetheinyl Transferase Homolog Is Essential for Photorhabdus luminescens To Support Growth and Reproduction of the Entomopathogenic Nematode Heterorhabditis bacteriophora

Ciche, Todd A., Bintrim, Scott B., Horswill, Alexander R., Ensign, Jerald C.

The bacterium Photorhabdus luminescens is a symbiont of the entomopathogenic nematode Heterorhabditis bacteriophora. The nematode requires the bacterium for infection of insect larvae and as a...

Purification and Characterization of a High-Molecular-Weight Insecticidal Protein Complex Produced by the Entomopathogenic Bacterium Photorhabdus luminescens

Bowen, David J., Ensign, Jerald C.

Photorhabdus luminescens is a gram-negative enteric bacterium that is found in association with entomopathogenic nematodes of the family Heterorhabditidae. The nematodes infect a variety of...

Insertional Inactivation of Genes Encoding the Crystalline Inclusion Proteins of Photorhabdus luminescens Results in Mutants with Pleiotropic Phenotypes

Bintrim, Scott B., Ensign, Jerald C.

The entomopathogenic bacterium Photorhabdus luminescens exhibits phase variation when cultured in vitro. The variant forms of P. luminescens are pleiotropic and are designated phase I and phase II...

For the Insect Pathogen Photorhabdus luminescens, Which End of a Nematode Is Out?

Ciche, Todd A., Ensign, Jerald C.

The nematode Heterorhabditis bacteriophora is the vector for transmitting the entomopathogenic bacterium Photorhabdus luminescens between insect larvae. The dauer juvenile (DJ) stage nematode...

Photobactin: a Catechol Siderophore Produced by Photorhabdus luminescens, an Entomopathogen Mutually Associated with Heterorhabditis bacteriophora NC1 Nematodes

Ciche, Todd A., Blackburn, Michael, Carney, John R., Ensign, Jerald C.

The nematode Heterorhabditis bacteriophora transmits a monoculture of Photorhabdus luminescens bacteria to insect hosts, where it requires the bacteria for efficient insect pathogenicity and as a...

Viability and Endogenous Substrates Used During Starvation Survival of Rhodospirillum rubrum†

Breznak, John A., Potrikus, C. J., Pfennig, Norbert, Ensign, Jerald C.

Cells of Rhodospirillum rubrum were grown photoorganotrophically and chemoorganotrophically and then starved for organic carbon and combined nitrogen under four conditions: anaerobically in the light...

Long-Term Starvation Survival of Rod and Spherical Cells of Arthrobacter crystallopoietes

Ensign, Jerald C.

Spherical and rod-shaped cells of Arthrobacter crystallopoietes, harvested during exponential growth, were subjected to total starvation for periods of time as long as 80 days. Viability measurements...

Intracellular Substrates for Endogenous Metabolism During Long-Term Starvation of Rod and Spherical Cells of Arthrobacter crystallopoietes

Boylen, Charles W., Ensign, Jerald C.

Cells of Arthrobacter crystallopoietes, harvested during growth as spheres and as rods, were starved by shaking at 30 C in phosphate buffer for 30 days, during which time they maintained 100%...

Sphere-Rod Morphogenesis in Arthrobacter crystallopoietes I. Cell Wall Composition and Polysaccharides of the Peptidoglycan1

Krulwich, Terry A., Ensign, Jerald C., Tipper, Donald J., Strominger, Jack L.

Cell walls of Arthrobacter crystallopoietes were prepared from cells grown as spheres and from peptone- and succinate-induced rod stage cells. Undegraded polysaccharide backbones of the...

Sphere-Rod Morphogenesis in Arthrobacter crystallopoietes II. Peptides of the Cell Wall Peptidoglycan1

Krulwich, Terry A., Ensign, Jerald C., Tipper, Donald J., Strominger, Jack L.

Cell walls of Arthrobacter crystallopoietes grown as spheres and as rods were solubilized by treatment with the B enzyme from Chalaropsis, an N-acetylmuramidase. The neutral glycopeptides were then...

Ratio of Teichoic Acid and Peptidoglycan in Cell Walls of Bacillus subtilis Following Spore Germination and During Vegetative Growth

Boylen, Charles W., Ensign, Jerald C.

Cell walls were isolated from cells of Bacillus subtilis strain Marburg during synchronous outgrowth of spores, during the two synchronous cell divisions which followed, and at various times during...

Isolation and Characterization of Three Autolytic Enzymes Associated with Sporulation of Bacillus thuringiensis var. thuringiensis1

Kingan, Steven L., Ensign, Jerald C.

Cells of Bacillus thuringiensis containing refractile spores autolyzed readily when suspended in buffer. The autolysate contained enzymes which lysed vegetative cell walls of the organism. Three...

NUTRITIONAL CONTROL OF MORPHOGENESIS IN ARTHROBACTER CRYSTALLOPOIETES

Ensign, Jerald C., Wolfe, R. S.

Ensign, Jerald C. (University of Illinois, Urbana), and R. S. Wolfe. Nutritional control of morphogenesis in Arthrobacter crystallopoietes. J. Bacteriol. 87:924–932. 1964.—Arthrobacter...