Can fungal epiphytes reduce disease symptoms caused by Phytophthora ramorum?
[Display omitted] ► Selected fungi demonstrate antagonism towards Phytophthora ramorum. ► Fungal epiphytes reduce necrosis on rhododendrons caused by P. ramorum. ► A method was developed to screen fungi in planta for biological control of P. ramorum. Leaf infection of ornamental species by Phytophth...
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Published in | Biological control Vol. 65; no. 1; pp. 135 - 141 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Amsterdam
Elsevier Inc
01.04.2013
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | [Display omitted]
► Selected fungi demonstrate antagonism towards Phytophthora ramorum. ► Fungal epiphytes reduce necrosis on rhododendrons caused by P. ramorum. ► A method was developed to screen fungi in planta for biological control of P. ramorum.
Leaf infection of ornamental species by Phytophthora ramorum has a significant impact on the spread of this disease. Fungicides have had limited success at controlling this disease. With increasing concerns that repeated fungicide applications will exacerbate the potential for fungicide resistance and mask symptoms, alternative control measures are desired. The potential of biological control has not been thoroughly examined. Fungi, isolated from soil, were screened in dual culture with P. ramorum for antagonistic activity. Three isolates, identified as Penicillium daleae, Metarhizium anisopliae, and Penicillium herquei, were selected for further testing on the aerial plant parts of rhododendrons. Different factors, including culture age, application timing, dose response, and additives in the formulation were studied to determine their effects on the antagonists to reduce leaf necrosis. Although responses were variable for the different antagonists, this study showed that fungi applied to the leaf surface could reduce necrosis caused by P. ramorum. The method developed can be used for screening potential antagonists in planta. |
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Bibliography: | http://dx.doi.org/10.1016/j.biocontrol.2013.01.006 http://handle.nal.usda.gov/10113/55999 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 1049-9644 1090-2112 |
DOI: | 10.1016/j.biocontrol.2013.01.006 |