Journal
IN VITRO CELLULAR & DEVELOPMENTAL BIOLOGY-PLANT
Volume 38, Issue 5, Pages 468-471Publisher
SPRINGER
DOI: 10.1079/IVP2002316
Keywords
antimicrobial; biocides; hypochlorous acid; isocyanurates; isothiazolones; plant tissue culture; stabilized chlorine
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Controlling fungal and bacterial contamination of woody plant material can be extremely difficult. Isothiazolone bioeides and sodium dichloroisocyanurate have been used singly and in combination to reduce microbial contamination in bud explants derived from greenhouse- and field-grown citrus trees. Explants from greenhouse-grown tree, were effectively disinfested (< 5% vs. 85% contamination) using a 'standard' disinfestation (SD) procedure followed by culture on medium containing 5 ml l(-1) Plant Preservative Mixture, or by the SD procedure. but substituting 300ppm sodium dichloroisocyanurate for 48 h for the treatment with 1.05% NaOCl in the SD procedure. Disinfestation of explants from field-grown trees was less effective than explants from the greenhouse, but was improved (10% vs. 47% contamination) by using a combination of the SD procedure with 1.05% NaOCl, or 100 or 300ppm sodium dichloroisocyanurate followed by culture onto medium containing 5 ml l(-1) Plant Preservative Mixture.
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