In vitro assessments of diverse plant pathogenic fungi treated with a novel growth control agent

The efficacy of an agent with an iodine-based active ingredient (a.i.) was evaluated for controlling the growth of fungi pathogenic to many different food crops. Even though iodine is a necessary mineral for mammals and is an approved food additive, interest in using iodine-based agrochemicals for f...

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Bibliographic Details
Published inCrop protection Vol. 23; no. 12; pp. 1169 - 1176
Main Authors Yates, Ida E., Arnold, Judy W., Bacon, Charles W., Hinton, Dorothy M.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.12.2004
Subjects
active ingredients
antifungal agents
bioassays
Conidia
food crops
Fumonisins
Fungicide
fungicides
Gibberella fujikuroi
host plants
in vitro studies
iodine
Iodine-containing agent
Mycelia
mycelium
plant growth control
plant pathogenic fungi
provenance
strains
Mycelia
Fumonisins
Iodine-containing agent
Fungicide
Conidia
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Summary:The efficacy of an agent with an iodine-based active ingredient (a.i.) was evaluated for controlling the growth of fungi pathogenic to many different food crops. Even though iodine is a necessary mineral for mammals and is an approved food additive, interest in using iodine-based agrochemicals for fungal control is recent. Fusarium verticillioides (synonym= F. moniliforme J. Sheld) sensitivity to the iodine-base agent was determined using two methods. One method used an agar plug taken from an actively growing culture and the other method used isolated conidia. The concentration of the agent required to inhibit growth of F. verticillioides was greater for the culture plug than isolated conidia. Forty-eight strains of F. verticillioides were analyzed representing different states within the United States, countries outside the United States, monocot and dicot plant hosts, and mating types. All strains of F. verticillioides, regardless of geographic origin, plant host, or mating type were sensitive to the test compound. In addition, 25 species of fungi pathogenic to a diverse array of crops were analyzed and demonstrated to be sensitive to this agent. A pesticide developed with an iodine-based a.i. could be an effective control for diverse fungi pathogenic to a range of plant hosts.
Bibliography:http://hdl.handle.net/10113/20636
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0261-2194
1873-6904
DOI:10.1016/j.cropro.2004.03.019