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CC BY-NC V4.0, Open Access
Journal article
Root rot pathogens of Cinnamomum cassia in Vietnam
Plant Pathology, Vol.71(9), pp.1969-1979
2022
Appears in Open Access via Read & Publish Agreements
Abstract
A study was conducted to determine the pathogens causing root rot, wilt and dieback disease of Cinnamomum cassia (Chinese cinnamon or cassia) in Vietnam, in nurseries and plantations in the Yen Bai, Quang Ninh, Thanh Hoa and Quang Nam provinces, and streams in the Yen Bai province. Pathogens were identified using morphology and internal transcribed spacer (ITS) sequence analysis. The 204 isolates obtained included 125 Phytophthora isolates and 79 from other oomycete genera. There were 112 isolates of P. cinnamomi, four P. heveae, two P. virginiana, three P. multibullata and four P. × vanyenensis. The pathogenicity and virulence of 16 P. cinnamomi, two P. heveae, two P. multibullata and four P. × vanyenensis isolates were assessed using lesion size after under-bark inoculation of C. cassia stems, and root damage following inoculation of 4-month-old C. cassia seedlings. The most virulent isolate from both assessments was a P. cinnamomi from the Quang Nam plantation. Isolates of P. cinnamomi showed a wide range of virulence, with isolates from healthy trees or seedlings showing the lowest virulence. Isolates of P. × vanyenensis, P. multibullata and P. heveae showed moderate or low pathogenicity. This study showed that although P. cinnamomi is the most common pathogen associated with dieback disease in Vietnamese C. cassia plantations, other Phytophthora species may also cause this disease. Knowledge of the presence of these soil- and waterborne pathogens will encourage improved soil and water hygiene in nurseries and implement measures to prevent the spread of the pathogens in plantations.
Details
- Title
- Root rot pathogens of Cinnamomum cassia in Vietnam
- Authors/Creators
- Q.N. Dang (Author/Creator) - Murdoch UniversityT.I. Burgess (Author/Creator) - Phytophthora Science and Management, Centre for Climate Impacted Terrestrial Ecosystems Harry Butler Institute, Murdoch University AustraliaJ. McComb (Author/Creator) - Phytophthora Science and Management, Centre for Climate Impacted Terrestrial Ecosystems Harry Butler Institute, Murdoch University AustraliaT.Q. Pham (Author/Creator) - Forest Industry Research InstituteB.V. Le (Author/Creator) - Forest Industry Research InstituteT.H. Nguyen (Author/Creator) - Forest Industry Research InstituteX.T. Le (Author/Creator) - Forest Industry Research InstituteG.E.St.J. Hardy (Author/Creator) - Murdoch University
- Publication Details
- Plant Pathology, Vol.71(9), pp.1969-1979
- Publisher
- John Wiley & Sons Ltd on behalf of British Society for Plant Pathology
- Identifiers
- 991005544097007891
- Copyright
- © 2022 The Authors.
- Murdoch Affiliation
- Harry Butler Institute; Centre for Terrestrial Ecosystem Science and Sustainability; Centre for Phytophthora Science and Management; School of Veterinary Medicine
- Language
- English
- Resource Type
- Journal article
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InCites Highlights
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- Collaboration types
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.97 Plant Pathology
- 3.97.1439 Phytophthora Management
- Web Of Science research areas
- Agronomy
- Plant Sciences
- ESI research areas
- Plant & Animal Science