title: Fusarium wilt of Prunus armeniaca seedlings.
abstract: Fusarium solani (Mart.) Sacc. was found to be the causal pathogen of Fusarium wilt of Prunus armeniaca seedlings. The fungus pathogenicity could be correlated with the increase in its mycelial growth and conidial germination under the influence of the host root exudates, volatile and gaseous exudates of either germinating seeds or roots, and the content of the host seedlings. Chromatographic and biological detection for indol derivatives in host root exudates indicated the presence of beta-indolacetic acid and indol-3-carbonic acid. Benzaldehyde, acetaldehyde, ethanol, ethylene, in addition to carbon dioxide, were among the volatile and gaseous exudates of either germinating seeds or roots of the host.
mesh_terms: D002255:Carbonic Acid / Q000378:metabolism / Q000494:pharmacology; D005638:Fruit; D005670:Fusarium / Q000187:drug effects / Q000254:growth & development*; D007210:Indoleacetic Acids / Q000378:metabolism / Q000494:pharmacology; D007211:Indoles / Q000378:metabolism / Q000494:pharmacology; D010935:Plant Diseases; D010944:Plants / Q000378:metabolism / Q000382:microbiology*; D012988:Soil Microbiology; D013172:Spores, Fungal / Q000187:drug effects / Q000254:growth & development
chemical_list: D007210:Indoleacetic Acids; D007211:Indoles; D002255:Carbonic Acid