Show simple item record

dc.contributor.authorLane, D.
dc.contributor.authorKamphuis, Lars
dc.contributor.authorDerbyshire, Mark
dc.contributor.authorDenton-Giles, Matthew
dc.date.accessioned2018-12-13T09:12:02Z
dc.date.available2018-12-13T09:12:02Z
dc.date.created2018-12-12T02:46:45Z
dc.date.issued2018
dc.identifier.citationLane, D. and Kamphuis, L. and Derbyshire, M. and Denton-Giles, M. 2018. Heat-dried sclerotia of Sclerotinia sclerotiorum myceliogenically germinate in water and are able to infect Brassica napus. Crop and Pasture Science. 69 (8): pp. 765-774.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/71997
dc.identifier.doi10.1071/CP18109
dc.description.abstract

The phytopathogenic fungus Sclerotinia sclerotiorum forms dormant structures (termed sclerotia) that germinate myceliogenically under certain environmental conditions. During myceliogenic germination, sclerotia produce hyphae, which can infect leaves or stems of host plants directly from the ground; this is termed basal infection. This study determined which abiotic conditions were most important for promoting myceliogenic germination of sclerotia in vitro. A high sclerotium hydration level and low incubation temperature (158C) improved mycelial growth in the presence of a nutrient source. Sclerotia incubated without a nutrient source on moist sand, vigorously myceliogenically germinated most frequently (63%) when they had been previously imbibed and then conditioned at -20°C. By far the most consistent amount of vigorous myceliogenic germination (>75%) was produced when sclerotia were heat-dried before being submerged in water. The hyphae of these sclerotia were shown to infect and proliferate on leaves of intact Brassica napus plants. This research provides a better understanding of the abiotic conditions that are likely to increase the risk of basal infection by S. sclerotiorum.

dc.publisherCSIRO Publishing
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleHeat-dried sclerotia of Sclerotinia sclerotiorum myceliogenically germinate in water and are able to infect Brassica napus
dc.typeJournal Article
dcterms.source.volume69
dcterms.source.number8
dcterms.source.startPage765
dcterms.source.endPage774
dcterms.source.issn1836-0947
dcterms.source.titleCrop and Pasture Science
curtin.departmentCentre for Crop and Disease Management (CCDM)
curtin.accessStatusOpen access


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

http://creativecommons.org/licenses/by-nc-nd/4.0/
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by-nc-nd/4.0/