Journal article
Resistance of micropropagated Eucalyptus marginata to Phytophthora cinnamomi
Plant Disease, Vol.76(6), pp.630-632
1992
Abstract
Eighty-eight percent of primary roots of a "resistant" micropropagated line of Eucalyptus marginata were able to restrict and confine colonization by Phytophthora cinnamoni. In contrast, no roots of susceptible seedling E. marginata restricted the pathogen. Lesions of roots of the field-resistant E. calophylla, the clonal line of E. marginata, and the unselected seedlings of E. marginata were 35 ± 11 mm, 51 ± 23 mm, and 125 ± 13 mm, respectively, 7 days after inoculation with P. cinnamomi. There was a highly significant (P < 0.01) difference between mean lesion length in roots of the clonal E. marginata and lesion length in roots of the unselected seedlings and a significant difference (P = 0.05) between clonal E. marginata and E. calophylla root lesion lengths. Screening seedling populations of E. marginata for resistance to P. cinnamomi followed by selection and micropropagation of "resistant" individuals may be a very useful strategy for developing resistance in an otherwise susceptible species.
Details
- Title
- Resistance of micropropagated Eucalyptus marginata to Phytophthora cinnamomi
- Authors/Creators
- D.M. Cahill (Author/Creator)I.J. Bennett (Author/Creator)J.A. McComb (Author/Creator)
- Publication Details
- Plant Disease, Vol.76(6), pp.630-632
- Publisher
- The American Phytopathological Society
- Identifiers
- 991005540455507891
- Copyright
- © 1992 The American Phytopathological Society
- Murdoch Affiliation
- School of Biological and Environmental Sciences
- Language
- English
- Resource Type
- Journal article
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