ITS-RFLP and sequence analysis of endophytes from Acianthus, Caladenia and Pterostylis (orchidaceae) in southeastern Queensland

Article

Bougoure, Jeremy J., Bougoure, Damian S., Cairney, John W. G. and Dearnaley, John D. W.. 2005. "ITS-RFLP and sequence analysis of endophytes from Acianthus, Caladenia and Pterostylis (orchidaceae) in southeastern Queensland." Mycological Research. 109 (4), pp. 452-460. https://doi.org/10.1017/S095375620500225X
Article Title

ITS-RFLP and sequence analysis of endophytes from Acianthus, Caladenia and Pterostylis (orchidaceae) in southeastern Queensland

ERA Journal ID2504
Article CategoryArticle
AuthorsBougoure, Jeremy J. (Author), Bougoure, Damian S. (Author), Cairney, John W. G. (Author) and Dearnaley, John D. W. (Author)
Journal TitleMycological Research
Fungal Biology
Journal Citation109 (4), pp. 452-460
Number of Pages27
Year2005
Place of PublicationUnited Kingdom
ISSN0953-7562
1469-8102
1878-6146
Digital Object Identifier (DOI)https://doi.org/10.1017/S095375620500225X
Web Address (URL)http://www.sciencedirect.com/science/article/pii/S0953756208614380
Abstract

We used ITS-RFLP and sequence analysis to determine the identities of the fungal endophytes of six terrestrial orchid species from southeastern Queensland, a region previously unexplored in this context. Pure cultures of orchid - colonising fungi were obtained and fungal identities were assessed by means of ITS-PCR, RFLP analysis, sequence comparison, and protocorm colonisation tests. ITS-PCR and RFLP analysis resulted in five main groupings. Sequencing and GenBank comparison of these five groups showed that the fungal endophytes isolated from the three Pterostylis species were probably Thanatephorus species. There was close sequence identity (90%) of the fungus isolated from Acianthus spp. to Epulorhiza repens, suggesting these may be the same fungal species. However, that only E. repens succeeded in colonising protocorms of Thelymitra pauciflora suggests these may be different species of Epulorhiza. Analysis of the ITS and LSU sequences of the fungus isolated from Caladenia carnea showed high identities with a sequence from a Sebacina vermifera originally isolated from Caladenia dilatata. These results show that there is specificity for fungal partners within the orchid genera Acianthus, Caladenia and Pterostylis.

Keywordsorchid mycorrhizas, Australian terrestrial orchids, Thanatephorus, Epulorhiza, Sebacina, internal transcribed spacer (ITS), large subunit (LSU)
ANZSRC Field of Research 2020310801. Phycology (incl. marine grasses)
300409. Crop and pasture protection (incl. pests, diseases and weeds)
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Byline AffiliationsDepartment of Biological and Physical Sciences
University of Western Sydney
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Dearnaley, John and Daggard, Grant. 2001. "Expression of a polygalacturonase enzyme in germinating pollen of Brassica napus." Sexual Plant Reproduction. 13 (5), pp. 265-271. https://doi.org/10.1007/s004970000062
Molecular identification of the primary root fungal endophytes of Dipodium hamiltonianum (Orchidaceae)
Dearnaley, John and Le Brocque, Andrew F.. 2006. "Molecular identification of the primary root fungal endophytes of Dipodium hamiltonianum (Orchidaceae)." Australian Journal of Botany. 54 (5), pp. 487-491. https://doi.org/10.1071/BT05149
Isotopic and molecular evidence for saprotrophic Marasmiaceae mycobionts in rhizomes of Gastrodia sesamoides
Dearnaley, John D. W. and Bougoure, Jeremy J.. 2010. "Isotopic and molecular evidence for saprotrophic Marasmiaceae mycobionts in rhizomes of Gastrodia sesamoides." Fungal Ecology. 3 (4), pp. 288-294. https://doi.org/10.1016/j.funeco.2009.11.003
Caelestines A-D, Brominated Quinolinecarboxylic Acids from the Australian Ascidian Aplidium caelestis
Yin, Sheng, Boyle, Glen M., Carroll, Anthony R., Kotiw, Michael, Dearnaley, John, Quinn, Ronald J. and Davis, Rohan A.. 2010. "Caelestines A-D, Brominated Quinolinecarboxylic Acids from the Australian Ascidian Aplidium caelestis." Journal of Natural Products. 73 (9), pp. 1586-1589. https://doi.org/10.1021/np100329w
Phosphate transporter expression in the soybean AM symbiosis
Dearnaley, John, Learmonth, Barbara A. and Bougoure, Damian S.. 2002. "Phosphate transporter expression in the soybean AM symbiosis." 7th International Mycological Congress (IMC7). Oslo, Norway 11 - 17 Aug 2002 Australia.
Orchid mycorrhizas - a disproportionate focus on the minutiae?
Dearnaley, John. 2010. "Orchid mycorrhizas - a disproportionate focus on the minutiae?" 2010 Joint Australasian Mycological Society and the Australian Society for Mycrobiology Meeting. Sydney, Australia 04 - 08 Jul 2010
Molecular identification of mycorrhizal fungi in Australian threatened plant species
Dearnaley, John D. W., Downie, Alex F., Murray, Andrew J. and Le Brocque, Andrew F.. 2008. "Molecular identification of mycorrhizal fungi in Australian threatened plant species." Schenk, Peer (ed.) 1st International Conference on Biotic Plant Interactions (ICBPI 2008). Brisbane, Australia 27 - 29 Mar 2008 Brisbane, Australia.
Molecular identification of a mycorrhizal Sebacinaceae from the endangered Caladenia atroclavia (black clubbed spider orchid)
Dearnaley, J. D. W., Murray, A. J. and Mathieson, M. T.. 2009. "Molecular identification of a mycorrhizal Sebacinaceae from the endangered Caladenia atroclavia (black clubbed spider orchid)." Australasian Mycologist. 28 (2-3), pp. 45-50.
Defence gene expression in single mycorrhizal roots of soybean
Dearnaley, John and Learmonth, Barbara A.. 2003. "Defence gene expression in single mycorrhizal roots of soybean." 4th International Conference on Mycorrhizae (ICOM4) . Montreal, Canada 10 - 15 Aug 2003 Québec, Canada.
The mycorrhizal fungal associations of the vunerable Sophora fraseri (Fabaceae)
Downie, A. F., Le Brocque, A. F. and Dearnaley, J. D. W.. 2008. "The mycorrhizal fungal associations of the vunerable Sophora fraseri (Fabaceae)." Australasian Mycologist. 27 (2), pp. 57-65.
Lantana invades the soil too! Effects of Lantana camara on soil fungal dominance
Case, Heidi, Dearnaley, John and Le Brocque, Andrew F.. 2008. "Lantana invades the soil too! Effects of Lantana camara on soil fungal dominance." 2008 Conference of the Ecological Society of Australia (ESA 2008). Sydney, Australia 01 - 05 Dec 2008 Australia. Ecological Society of Australia.
Endophytic fungi associated with Australian orchids
Dearnaley, John and Le Brocque, Andrew F.. 2006. "Endophytic fungi associated with Australian orchids." Australasian Plant Conservation: Bulletin of the Australian Network for Plant Conservation. 15 (2), pp. 7-9.
Molecular identification of fungal endophytes in Australian myco-heterotrophic orchids
Dearnaley, John. 2006. "Molecular identification of fungal endophytes in Australian myco-heterotrophic orchids." Meyer, Wieland (ed.) 8th International Mycological Congress (IMC8). Cairns, Australia 20 - 25 Aug 2006 Australia.
Fungal endophytes in Australian myco-heterotrophic orchids
Dearnaley, John. 2006. "Fungal endophytes in Australian myco-heterotrophic orchids." Meyer, Wieland (ed.) 8th International Mycological Congress (IMC8). Cairns, Australia 20 - 25 Aug 2006 Australia.
The fungal endophytes of erythrorchis cassythoides - is this orchid saprophytic or parasitic?
Dearnaley, John. 2006. "The fungal endophytes of erythrorchis cassythoides - is this orchid saprophytic or parasitic?" Australasian Mycologist. 25 (2), pp. 51-57.
The fungal endophytes of dipodium variegatum (orchidaceae)
Bougoure, Jeremy J. and Dearnaley, John. 2005. "The fungal endophytes of dipodium variegatum (orchidaceae)." Australasian Mycologist. 24 (1), pp. 15-19.