Characterization of aggregates produced by the potential mycoherbistat Plectosporium alismatisin submerged culture: germination, UV-radiation tolerance and infectivity
Article
Article Title | Characterization of aggregates produced by the potential mycoherbistat Plectosporium alismatisin submerged culture: germination, UV-radiation tolerance and infectivity |
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ERA Journal ID | 3334 |
Article Category | Article |
Authors | Cliquet, Sophie (Author), Despreaux, Julien (Author), Zeeshan, Kashif (Author), de la Broise, Denis (Author) and Ash, Gavin (Author) |
Journal Title | Biocontrol Science and Technology |
Journal Citation | 21 (10), pp. 1243-1256 |
Number of Pages | 14 |
Year | 2011 |
Publisher | Taylor & Francis |
Place of Publication | United Kingdom |
ISSN | 0958-3157 |
1360-0478 | |
Digital Object Identifier (DOI) | https://doi.org/10.1080/09583157.2011.604124 |
Web Address (URL) | http://www.tandfonline.com/doi/abs/10.1080/09583157.2011.604124 |
Abstract | Plectosporium alismatis, a potential mycoherbistat of Alismatacae spp., has been previously shown to produce aggregates which contain chlamydospores in liquid culture. Weevaluated the impact of medium composition on the formation and composition of aggregates. In shake flasks cultures using 5.74 gL−1 sodium nitrate, 8.8 gL−1 malt extract or glucose and 0.1% Tween 80, P alismatis formed small, uniform (diameter of 75% aggregates <720 μm), dense, melanised aggregates containing 104 conidia and 103 chlamydospores, these numbers remained unchanged during growth. All 7-day-old aggregates exposed to desiccation or/ and UV-radiation germinated. In bioassays using leaf discs of Alisma plantago-aquatica, P. alismatis aggregates caused necrosis, regardless of whether aggregates had been exposed to desiccation and/or UV-radiation prior to application on leaf discs, whereas other propagules (103 propagules disc−1) exposed to drying and UV-radiation stress were unable to cause necrosis. This preliminary research shows the potential of aggregates to be used as part of a formulation of biocontrol agents, provided adequate conditions for optimal aggregate yields are found. |
Keywords | bioherbistat; aggregates; air-drying; UV-radiation |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 300409. Crop and pasture protection (incl. pests, diseases and weeds) |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Brest, France |
Charles Sturt University | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q42y9/characterization-of-aggregates-produced-by-the-potential-mycoherbistat-plectosporium-alismatisin-submerged-culture-germination-uv-radiation-tolerance-and-infectivity
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