In laboratory tests, the plant pathogen Fusarium roseum demonstrated the potential to serve as a self-sustaining biological control for the noxious aquatic weed Hydrilla verticillata. At fungal spore concentrations of at least 1 x 104 spores per ml, the fungus induced chlorosis, growth inhibition, abscission, and stem disintegration of diseased hydrilla tissue and eventually resulted in death of the plant. The pathogenicity of the fungus was affected by pH, spore concentration, and the length of time after inoculation. Fusarium roseum reisolated from diseased hydrilla tissue readily infected fresh hydrilla plants. Histological studies demonstrated the presence of foreign bodies in the vascular portions of infected hydrilla, although the fungus itself was not observed growing in the plant tissue.Ball State UniversityMuncie, IN 47306
| Identifer | oai:union.ndltd.org:BSU/oai:cardinalscholar.bsu.edu:handle/182024 |
| Date | 03 June 2011 |
| Creators | West, Lynn Cousert |
| Contributors | Brown, Irwin L. |
| Source Sets | Ball State University |
| Detected Language | English |
| Format | vii, 71 leaves : ill. (some col.) ; 28 cm. |
| Source | Virtual Press |
Page generated in 0.0024 seconds