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Description
Title: | Factors Influencing the Distribution, Growth and Infectivity of Casuarina-Infective Frankia |
Author(s): | Zimpfer, Jeff Frederick |
Doctoral Committee Chair(s): | Dawson, Jeffrey O. |
Department / Program: | Natural Resrouces and Environmental Sciences |
Discipline: | Natural Resrouces and Environmental Sciences |
Degree Granting Institution: | University of Illinois at Urbana-Champaign |
Degree: | Ph.D. |
Genre: | Dissertation |
Subject(s): | Agriculture, Soil Science |
Abstract: | Further studies revealed that Casuarina cladodes increased the infectivity of a soil inoculum by a factor of 3.2, whereas leaves of a sympatric check plant, Terminalia catappa (Combretaceae), barely increased the same soil's infectivity. Charcoal and clay added to the seedling growth substrate to bind organic material significantly inhibited nodulation of C. cunninghamiana by a Frankia isolate, suggesting the host may release compounds necessary to the nodulation process. In a final study, the infectivity of soils inoculated with Frankia isolate CjI82001 decreased over time, whereas infectivity of soils without inoculum either increased or remained unaffected. A positive synergism was observed between the Frankia isolate and the soil biotic community, resulting in an increased infectivity of the Frankia isolate. |
Issue Date: | 2001 |
Type: | Text |
Language: | English |
Description: | 159 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2001. |
URI: | http://hdl.handle.net/2142/83079 |
Other Identifier(s): | (MiAaPQ)AAI3023246 |
Date Available in IDEALS: | 2015-09-25 |
Date Deposited: | 2001 |
This item appears in the following Collection(s)
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Dissertations and Theses - Natural Resources and Environmental Sciences
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Graduate Dissertations and Theses at Illinois
Graduate Theses and Dissertations at Illinois