Login | Request Account (DAF staff only)

Predicting impact of Austropuccinia psidii on populations of broad leaved Melaleuca species in Australia

Share this record

Add to FacebookAdd to LinkedinAdd to XAdd to WechatAdd to Microsoft_teamsAdd to WhatsappAdd to Any

Export this record

View Altmetrics

Pegg, G. S., Lee, D. J. and Carnegie, A. J. (2018) Predicting impact of Austropuccinia psidii on populations of broad leaved Melaleuca species in Australia. Australasian Plant Pathology, 47 (4). pp. 421-430. ISSN 1448-6032

Full text not currently attached. Access may be available via the Publisher's website or OpenAccess link.

Article Link: https://doi.org/10.1007/s13313-018-0574-8

Abstract

Melaleucaeae is the second largest angiosperm tribe in Australia containing more than 330 species. Most Melaleuca species are endemic to Australia and are found in a wide variety of habitats. The Melaleuca leucadendra complex, including M. leucadendra, M. quinquenervia and M. viridiflora, are dominant components of the tropical and sub-tropical biota of Australia. All three species are known to be susceptible to Austropuccinia psidii (myrtle rust), which was first detected in Australia in 2010 and is now widespread in the eastern states and the Northern Territory. In this study we examined variability in susceptibility to A. psidii within populations of M. quinquenervia, M. leucadendra and M. viridiflora using in-vitro assessments of seedlings from provenances across the native range of the three species. We identified wide variation in susceptibility to A. psidii between M. quinquenervia, M. leucadendra and M. viridiflora, among provenances within these species as well as within provenances. Further studies on larger populations of these Melaleuca species addressing the long-term impacts of repeated infection in native ecosystems are needed to not only help predict but also limit impact. Regaining lost genetic diversity within some of these species populations may require human intervention.

Item Type:Article
Business groups:Horticulture and Forestry Science
Keywords:Myrtle rust, environmental impact, Invasive species, Biodiversity
Subjects:Plant pests and diseases > Pest control and treatment of diseases. Plant protection
Live Archive:06 Mar 2019 03:05
Last Modified:03 Sep 2021 16:45

Repository Staff Only: item control page