Identification and characterization of unknown bacteria isolated from a fungicide

Date

12-2012

Degree

Bachelor of Science in Agriculture

Major Course

Major in Plant Pathology

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Marina P. Natural

Abstract

Bacterial contamination of a fungicide was assayed and confirmed through the repetitive isolation and consistent presence of the microorganisms. Identities of the contaminants were necessary to provide a preliminary evaluation of the probable consequence in the usage of a fungicide in the field. Two bacterial isolate SW and PY were obtained. Hypersensitivity test in tobacco was performed to rule out the possibility that these bacteria were phytopathogens. The bacterial isolates labeled SW and PY were studied based on morphological, cultural, physiological and biochemical characters. Isolate SW is gram positive, short to long rods, non spore forming, facultative anaerobe, non-motile, grows in saline condition and have high fermentative ability. While isolate PY is gram negative, short rods, strict aerobe, motile and produce fluorescent pigments. Isolate SW is tentatively identified as Lactobacillus fermentum while isolate PY is Pseudomonas aeruginosa.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2012 A3 /S55

Document Type

Thesis

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