Soil samples from surface to 15 cm, 15 cm to 30 cm, and 30 cm to 45 cm were obtained from the open desert in Yuma, AZ. Bacterial extraction was achieved using a Waring blender. One gram of soil was mixed with 100 mL of sterile dH0. Extractions from each sample end were produced. Aliquots of 10 [mu]L were then plated onto R2A and incubated at 27?C. Colonies were counted daily. CFUs (colony forming units) for each depth were compared as well as colony morphology.

• This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.

Creator

• Lamaestra, Donna Ann

Publisher

• Worcester Polytechnic Institute

Identifier

• 00D059M

Advisor

• Crusberg, Theodore C.

Year

• 2000

Date created

• 2000-01-01

Resource type

• Major Qualifying Project

Major

• Biology & Biotechnology

Rights statement

• In Copyright