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Defence responses in plantation-grown Eucalyptus globulus and Eucalyptus nitens after artificial fungal inoculation
Citation
Deflorio, G and Franz, E and Beadle, C and Mohammed, C, Defence responses in plantation-grown Eucalyptus globulus and Eucalyptus nitens after artificial fungal inoculation, Forest Pathology, 41, (5) pp. 398-406. ISSN 1437-4781 (2011) [Refereed Article]
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Copyright Statement
Copyright 2010 Blackwell Verlag GmbH
DOI: doi:10.1111/j.1439-0329.2010.00700.x
Abstract
The formation of reaction and barrier zones was studied in the xylem of Eucalyptus globulus and Eucalyptus nitens tree stems after wounding and artificial inoculation with two white rot fungi. The study had two objectives: to describe host responses in Eucalyptus spp. by light microscopy and to determine whether they would differ in a fungal treatment (wounding and inoculation by one of two fungal isolates) when compared to a control treatment (wounding only). Eucalyptus globulus and E. nitens developed similar reaction and barrier zones. The E. globulus barrier zone was characterized by kino vein formation. In both hosts, the reaction zone was primarily influenced by content and distribution of living tracheids and parenchyma cells within the sapwood. By contrast, the anatomy of the barrier zone showed similarities to the basic xylem structure of each host, except for some cell types that were newly formed (sclereids, kino veins) or increased in number (parenchyma cells, tracheids). Other cell types were reduced in number or completely absent. Host response in terms of barrier zone width appeared to be greater in the fungal than control treatment. Both wood decay fungi appeared to induce a wider barrier zone in both species than that associated with non-specific damage caused exclusively by wounding. However, the small number of replicates available for this study was possibly insufficient to provide statistical evidence for different barrier zone width between fungal and control treatments.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Research Division: | Agricultural, Veterinary and Food Sciences |
| Research Group: | Forestry sciences |
| Research Field: | Forest health and pathology |
| Objective Division: | Plant Production and Plant Primary Products |
| Objective Group: | Forestry |
| Objective Field: | Hardwood plantations |
| UTAS Author: | Beadle, C (Dr Christopher Beadle) |
| UTAS Author: | Mohammed, C (Professor Caroline Mohammed) |
| ID Code: | 77856 |
| Year Published: | 2011 |
| Web of Science® Times Cited: | 2 |
| Deposited By: | Agricultural Science |
| Deposited On: | 2012-06-01 |
| Last Modified: | 2017-11-09 |
| Downloads: | 0 |
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