Hybrid vigor in Eucalyptus increases resistance against Phytophthora root rot

dc.contributor.authorBose, Tanay
dc.contributor.authorHammerbacher, Almuth
dc.contributor.authorJones, Wayne
dc.contributor.authorRoux, Jolanda
dc.contributor.authorSlippers, Bernard
dc.contributor.authorWingfield, Michael J.
dc.contributor.emailtanay.bose@fabi.up.ac.zaen_US
dc.date.accessioned2024-08-30T11:19:11Z
dc.date.available2024-08-30T11:19:11Z
dc.date.issued2023-04
dc.description.abstractEucalyptus nitens is a cold-tolerant eucalypt that is native to Eastern Australia. Pure E. nitens as well as its hybrids, such as Eucalyptus grandis × Eucalyptus nitens, is propagated commercially in various regions of the southern hemisphere, including South Africa. In a plantation environment, E. nitens is susceptible to a variety of native and invasive pathogens, including Phytophthora alticola and P. cinnamomi. Recently, there have been increasing reports of root and collar rot in E. nitens in South Africa. The severity of this disease was substantially lower among interspecific hybrids of E. grandis × E. nitens compared to purebred E. nitens. In South Africa, the susceptibility of commercially propagated provenances of pure E. nitens and varieties of hybrid E. grandis × E. nitens to Phytophthora species is unknown. Therefore, we conducted greenhouse trials to evaluate the pathogenicity of P. alticola and P. cinnamomi to two families of pure E. nitens, one self-fertilized and the other outcrossed, as well as a single clonal variety of the most widely planted interspecific hybrid, E. grandis × E. nitens. The outcomes from these trials revealed that both self-fertilized and outcrossed families of E. nitens were highly susceptible to the tested Phytophthora species. The severity of root rot was greatest among plants inoculated with P. cinnamomi. The tested interspecific hybrid was tolerant to both Phytophthora species and developed new lateral and fine roots to offset the effects of root rot.en_US
dc.description.departmentBiochemistryen_US
dc.description.departmentForestry and Agricultural Biotechnology Institute (FABI)en_US
dc.description.departmentGeneticsen_US
dc.description.departmentMicrobiology and Plant Pathologyen_US
dc.description.departmentPlant Production and Soil Scienceen_US
dc.description.departmentZoology and Entomologyen_US
dc.description.librarianam2024en_US
dc.description.sdgSDG-15:Life on landen_US
dc.description.sponsorshipThe Sappi Forests, the University of Pretoria and the Tree Protection Cooperative Programme (TPCP), Forestry and Agricultural Biotechnology Institute (FABI). Open access funding provided by University of Pretoria.en_US
dc.description.urihttp://link.springer.com/journal/11557en_US
dc.identifier.citationBose, T., Hammerbacher, A, Jones, W. 2023, 'Hybrid vigor in eucalyptus increases resistance against phytophthora root rot', Mycological Progress, vol. 22, no. 4, pp. 1-10. https://DOI.org/10.1007/s11557-023-01877-6.en_US
dc.identifier.issn1617-416X (print)
dc.identifier.issn861-8952 (online)
dc.identifier.other10.1007/s11557-023-01877-6
dc.identifier.urihttp://hdl.handle.net/2263/97947
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.rightsThe Author(s) 2023. This article is licensed under a Creative Commons Attribution 4.0 International License.en_US
dc.subjectEucalyptus nitensen_US
dc.subjectEucalyptus grandis × E. nitensen_US
dc.subjectCommercial forestryen_US
dc.subjectPathogenicityen_US
dc.subjectPhytophthora alticolaen_US
dc.subjectPhytophthora cinnamomien_US
dc.subjectSDG-15: Life on landen_US
dc.titleHybrid vigor in Eucalyptus increases resistance against Phytophthora root roten_US
dc.typeArticleen_US

Files

Original bundle

Now showing 1 - 2 of 2
Loading...
Thumbnail Image
Name:
Bose_Hybrid_2023.pdf
Size:
932.13 KB
Format:
Adobe Portable Document Format
Description:
Article
Loading...
Thumbnail Image
Name:
Bose_Hybrid_AddfileSuppl1_2023.docx
Size:
17.27 KB
Format:
Microsoft Word XML
Description:
AddfileSuppl1

License bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description: