The effects of Mycoleptodiscus terrestris on Cabomba caroliniana Open Access

Gatch, Daniel Chaney (2011)

Permanent URL: https://etd.library.emory.edu/concern/etds/0v838145w?locale=en
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Abstract

Abstract
The effects of Mycoleptodiscus terrestris on Cabomba caroliniana. The purpose of this research project was to determine the effects of the fungus Mycoleptodiscus terrestris (Mt) as a biocontrol agent against the invasive aquatic plant Cabomba caroliniana (fanwort). Experiment one compared the final biomasses of treated vs. untreated fanwort after being exposed to Mt for 27 days. Experiment two and experiment three compared differences in damage in treated vs. untreated fanwort after being exposed to Mt for 27 and 19 days respectively. Damage in experiment one was determined quantitatively by comparing the final biomasses of treated vs. untreated fanwort. Experiments two and three used a qualitative damage rating to determine damage caused verticillata, an invasive aquatic plant known to be affected and three to determine if the prepared inocula were working properly. Experiment one and experiment three showed no significant difference between Mt treated vs. untreated fanwort, while in experiment two there was significantly higher damage recorded for Mt treated fanwort vs. untreated fanwort. Experiment three supports the idea that Mt does not have an effect on fanwort. Because of the contrasting results of the three experiments on the effects of Mt on fanwort, additional studies comparable to experiment one that use a quantitative approach need to be performed to confirm the absence of an effect of Mt on fanwort.

Table of Contents

Table of Contents

1. INTRODUCTION 1

2. MATERIAL AND METHODS 10

2.1 STUDY SPECIMENS 10

2.2 INOCULUM PREPARATION 10

2.3 EXPERIMENT ONE 11

2.4 EXPERIMENT TWO 12

2.5 EXPERIMENT THREE 12

3. RESULTS 13

3.1 EXPERIMENT ONE 13

3.1.1 Figure 1 13

3.1.2 Figure 2 14

3.1.3 Figure 3 15

3.1.4 Figure 4 16

3.2 EXPERIMENT TWO 16

3.2.1 Figure 5 17

3.3 EXPERIMENT THREE 17

3.3.1 Figure 6 18

3.3.2 Figure 7 19

4. DISCUSSION 19

5. LITERATURE CITED 20

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