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Note : Occurrence and persistence of culturable clostridial spores on the leaves of horticultural plants
Author(s) -
Ercolani G.L.
Publication year - 1997
Publication title -
journal of applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 1364-5072
DOI - 10.1111/j.1365-2672.1997.tb03308.x
Subject(s) - spore , biology , persistence (discontinuity) , botany , geotechnical engineering , engineering
Clostridial spores were found in numbers from less than 1 to over 50 colony‐forming units cm ‐2 on mature leaves of 19 species of horticultural plants under commercial cultivation in five localities in Apulia (SE Italy). Of 1828 clostridial isolates, 87% were identified phenotypically and ascribed to Clostridium pasteurianum, Cl. sporogenes, Cl. butyricum, Cl. roseum, Cl. perfringens, Cl. felsineum and Cl. acetobutylicum , in decreasing order of frequency. When spore suspensions of Cl. pasteurianum, Cl. perfringens, Cl. roseum and Cl. sporogenes were inoculated onto the leaves of basil, leaf‐beet, lettuce, rocket‐salad, spinach and tomato in the greenhouse, spore counts at first invariably declined shortly after inoculation, then rose again significantly for Cl. pasteurianum and Cl. perfringens on basil and for Cl. sporogenes on tomato in summer.