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Pathogenicity of fungi and bacteria from the Sudan to water hyacinth
Author(s) -
ABDELRAHIM A. M.,
TAWFIG S.
Publication year - 1984
Publication title -
weed research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 74
eISSN - 1365-3180
pISSN - 0043-1737
DOI - 10.1111/j.1365-3180.1984.tb01559.x
Subject(s) - hyacinth , biology , phoma , pathogenicity , bacteria , pathogenic bacteria , microbiology and biotechnology , eichhornia crassipes , fusarium , fungus , biological pest control , botany , aquatic plant , ecology , paleontology , genetics , macrophyte
Summary: Studies were made in the Sudan for microorganisms pathogenic to water hyacinth ( Etchhornia crassipes Solms) for biological control purposes. Many fungi and bacteria were isolated from plant parts showing disease symptoms. Pathogenicity tests revealed that only five out of the twenty‐five fungal and bacterial isolates were damaging to the weed plant. These included Acremonium zonatum, Drechslera specifera and Fusarium equiseti. Phoma sorghina and a bacterium Bacillus sp. are reported for the first time as potential pathogens of water hyacinth. Pathogenic isolates were also found to produce toxic metabolites in liquid cultures.