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Scanning Electron Microscopy, Histological, And Tissue Culture Studies Of Powdery Mildews Infecting Dogwoods, Leigh Ann Klein
Scanning Electron Microscopy, Histological, And Tissue Culture Studies Of Powdery Mildews Infecting Dogwoods, Leigh Ann Klein
Masters Theses
Powdery mildew has become a common and widespread foliar disease of dogwoods. Microsphaera pulchra Cooke and Peck, and Phyllactinia guttata (Wallr.: Fr.) Lev. are two causal agents of powdery mildew on dogwood species in eastern North America. A clear understanding of the host-pathogen relationship between these fungi and their host must be obtained to advance research in disease management and resistance breeding.
A necessary step in studying a disease is to identify the causal agent. Leaves of C. florida 'Cherokee Sunset' and C. amomum (silky dogwood) were observed under a compound microscope to determine causal agents of powdery mildew based …
The Vascular Flora Of The Upper Clinch River In Claiborne, Grainger, And Hancock Counties, Tennessee, Bobby Christopher Bullington
The Vascular Flora Of The Upper Clinch River In Claiborne, Grainger, And Hancock Counties, Tennessee, Bobby Christopher Bullington
Masters Theses
The vascular flora along a portion of the Upper Clinch River (UCR) in Claiborne, Grainger, and Hancock Counties, Tennessee was inventoried for two full growing seasons in 1994 and 1995. A total of 526 species and lesser taxa in 108 families and 338 genera were documented. Three hundred and twenty-six taxa were determined to be county records. Six taxa are state listed as threatened or special concern species in Tennessee.
Distributions of the taxa indicate a strong northern extraneous influence on the flora. However, intraneous elements still represent the single largest category. Northern taxa comprise almost 52% of the total …