Open AccessFirst Report ofMacrophomina phaseolinaCausing Leaf and Stem Blight of Tropical Soda Apple in Florida
Author(s) -
Fanny Iriarte,
Erin N. Rosskopf,
Mark E. Hilf,
Greg McCollum,
Joseph P. Albano,
Scott Adkins
Publication year - 2007
Publication title -
plant health progress
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.565
H-Index - 9
ISSN - 1535-1025
DOI - 10.1094/php-2007-1115-01-br
Subject(s) - pycnidium , biology , blight , macrophomina phaseolina , noxious weed , fungus , internal transcribed spacer , weed , botany , horticulture , agronomy , biochemistry , gene , ribosomal rna
Leaf necrosis was observed in tropical soda apple plants in Fort Pierce, FL. A fungus was isolated from symptomatic stem tissue and from numerous excised pycnidia. Identity was confirmed by analysis of the sequence of the internal transcribed spacer region, and Koch's postulates were completed. To the best of our knowledge this is the first report of M. phaseolina as a pathogen of S. viarum. This report provides further evidence of this noxious weed serving as a reservoir for potential pathogens of vegetable crops. Accepted for publication 25 September 2007. Published 15 November 2007.