Dissertations and Theses @ UNI
Availability
Open Access Thesis
Keywords
Bioremediation; Mycorrhizas--Effect of pollution on; Herbicides--Environmental aspects;
Abstract
Soil bioremediation has primarily focused on the use of free living, actively growing microorganisms to degrade toxic organic substances. Recently, however, plants and rhizosphere activity, including mycorrhizal fungi have been increasingly studied to determine the role that consortial assemblages may play in bioremediation. While the enhanced absorbtion of nutrients, water, and minerals by mycorrhizal fungi has been well documented, less is known about their role in the degradation of soil contaminants. Using the Biolog plate technique, microbial communities were characterized in Native Prairie, Corn, and Non-Native Prairie vegetative strips prior to, and after two applications of Acetachlor, Alachlor, and Atrazine. Mycorrhizal hyphae growth was also examined under increasing concentrations of the same three chemicals. Microbial biomass was affected by herbicide application among the vegetative types in the test strips. Mycorrhizae grown on various concentrations of herbicides also showed decreased growth as herbicide concentrations increased.
Year of Submission
1996
Degree Name
Master of Science
Department
Environmental Science Program
Department
Tallgrass Prairie Center
First Advisor
James E. Jurgenson, Chair
Date Original
1996
Object Description
1 PDF file (ix, 96 pages)
Copyright
©1996 Susann E. Ahrabi-Fard
Language
en
File Format
application/pdf
Recommended Citation
Ahrabi-Fard, Susann E., "The effects of herbicides on microbial and mycorrhizal populations in native prairie, corn, and non-native prairie vegetation, using the Biolog technique" (1996). Dissertations and Theses @ UNI. 196.
https://scholarworks.uni.edu/etd/196
