Microbial Physiology and Biochemistry

GROUP SYMPOSIUM CELLS & CELL SURFACES / ENVIRONMENTAL MICROBIOLOGY / PHYSIOLOGY, BIOCHEMISTRY & MOLECULAR GENETICS GROUPS Gene expression in microbial niches

Tryptophan metabolite excretion by the American cockroach.

Abstrac t -1 . Three fluorescing materials have been discovered in excreta from the American cockroach, Periplaneta americana (L.), and found to increase in concentration as dietary nitrogen increases. 2. These compounds have been identified as kynurenic, xanthurenic and 8-hydroxyquinaldic acids. 3. Feeding cockroaches antibiotic eliminates 8-hydroxyquinaldic acid production, presumably by inhi...

Environmental control of microbial growth and morphogenesis.

changes that are often associated with changes in physiology. One of the men who has worked on this subject a great deal will give the next pap~r on this program, Or. Walter J. Nickerson is Professor of Microbial Biochemistry at the Institute of Microbiology, Rutgers University. I do not believe Dr. Nickerson has invented or created a fungus , but he certainly has manipulated them in very inter...

Biochemistry, genetics and physiology of microbial styrene degradation.

The last few decades have seen a steady increase in the global production and utilisation of the alkenylbenzene, styrene. The compound is of major importance in the petrochemical and polymer-processing industries, which can contribute to the pollution of natural resources via the release of styrene-contaminated effluents and off-gases. This is a cause for some concern as human over-exposure to ...

Enzymatic "combustion": the microbial degradation of lignin.

INTRODUCTION ....................................................................................................................................... 465 LIGNIN AS A SUBSTRATE ............................................................................................................................... 466 MICROBIOLOGY OF LIGNIN BIODEGRADATI ON ......................................................