Date of Award:
5-1-2006
Document Type:
Thesis
Degree Name:
Master of Science (MS)
Department:
Biology
Department name when degree awarded
Life Sciences: Biology
Committee Chair(s)
Anne J. Anderson
Committee
Anne J. Anderson
Committee
Darwin Sorensen
Committee
Brad Kropp
Committee
Yajun Wu
Abstract
Five mycobacterium isolates that degrade polycyclic aromatic hydrocarbons colonize the surface of barley roots from a seed inoculum. Colonization was maintained in the presence of an aggressive root-colonizing pseudomonad. All five of the mycobacterium strains utilized components in root washes for growth but they differed in their potential for biofilm formation. Components in the barley root washes did not impede the mineralization of pyrene. An inexpensive, portable, flexible microcosm chamber system was constructed and implemented in pyrene mineralization experiments. The system facilitated control of sterile conditions, air flow-through, and collection of volatilized radiolabeled compounds. Mineralization rates of pyrene were higher in a barley rhizosphere colonized with Mycobacterium KMS than they were in a sterile rhizosphere environment or a sand matrix inoculated with M. KMS.
Recommended Citation
Child, Robert D., "Mycobacterium-Plant Interactions in Bioremediation of Polycyclic Aromatic Hydrocarbon Compounds" (2006). Biology. 713.
https://digitalcommons.usu.edu/etd_biology/713
Included in
Copyright for this work is retained by the student. If you have any questions regarding the inclusion of this work in the Digital Commons, please email us at .