Fungal sporulation in a Permian plant fragment from Antarctica

 

Authors: Harper CJ, Taylor EL, Walker C, White JF, Serbet R, Krings M

Published in: Bulletin of Geosciences, volume 93, issue 1; pages: 13 - 26; Received 7 June 2017; Accepted in revised form 27 October 2017; Online 29 March 2018

Keywords: development, interaction, Glossopteris, parasitism, saprotrophism, spore wall,

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Abstract

Documented evidence of fungi from the Permian of Antarctica mostly consists of dispersed remains that do not provide the whole complement of diagnostic features necessary to determine even broad systematic affinities. A dense cluster of > 250 fungal spores occurs within a degraded vascular plant (probably glossopteridalean) fragment in Permian permineralized peat from Skaar Ridge, central Transantarctic Mountains, Antarctica. Spores are spheroidal to ovoid, ˜ 50 μm in diameter, and possess a massive wall composed of three wall components (wc1-3); one or two canals extend from the spore lumen to the outside. The spores are embedded in a confluent meshwork of tenuous hyphae. Structural similarities exist between the fossil spores and spores produced by certain present-day Mucoromycota, Ascomycota, and Basidiomycota; however, the precise systematic affinities of the fossils cannot be determined. The relationship between the spore producer and its also host plant remains unresolved. Nevertheless, the spatial arrangement of the spores within the plant structure suggests that the fungus required the host for sporulation, and perhaps even influenced plant development for this purpose. This discovery adds to the inventory of distinctive fungal fossils from the Permian of Antarctica and presents a new type of association/interaction between a Permian fungus and a vascular plant.

References

ANIKSTER, Y., EILAM, T., BUSHNELL, W.R. & KOSMAN, E. 2005. Spore dimensions of Puccinia species of cereal hosts as determined by image analysis. Mycologia 97, 474-484.View article

ARX, J.A. VON 1973. Ostiolate and non-ostiolate Pyrenomycetes. Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen. Series C. Biological and Medical sciences 76, 289-296.

BANERJI, M.L. 1962. An unreported fungus on Lycopodium annotinum L. Bulletin of the Botanical Society of Bengal 16, 45-46.

BARRETT, P.J., ELLIOT, D.H. & LINDSAY, J.F. 1986. The Beacon Supergroup (Devonian-Triassic) and Ferrar Group (Jurassic) in the Beardmore Glacier area, Antarctica, 339-428. In TURNER, M.D. & SPLETTSTOESSER, J.F. (eds) Geology of the Central Transantarctic Mountains. American Geophysical Union, Antarctic Research S 36.

BARROWS-BROADDUS, J. & DWINELL, L.D. 1985. Branch dieback and cone and seed infection caused by Fusarium moniliforme var. subglutinans in a loblolly pine seed orchard in South Carolina. Phytopathology 75, 1104-1108.View article

BAYRAM, Ö. & BRAUS, G.H. 2012. Coordination of secondary metabolism and development in fungi: the velvet family of regulatory proteins. FEMS Microbiology Reviews 36, 1-24.View article

BEGEROW, D., SCHÄFER, A.M., KELLNER, R., YURKOV, A., KEMLER, M., OBERWINKLER, F. & BAUER, R. 2014. Ustilaginomycotina, 295-329. In MCLAUGHLIN, D.J. & SPATAFORA, J.W. (eds) The Mycota VII Part A, Systematics and Evolution, 2nd Edition. Springer-Verlag, Berlin & Heidelberg.

BERCH, S.M. & TRAPPE, J.M. 1985. A new species of Endogonaceae, Glomus hoi. Mycologia 77, 645-657.View article

BLAIR, J.E. 2009. Fungi, 215-219. In HEDGES, S.B. & KUMAR, S. (eds) The timetree of life. Oxford University Press, New York, NY.

BŁASZKOWSKI, J. 1995. Glomus corymbiforme, a new species in Glomales from Poland. Mycologia 87, 732-737.View article

BŁASZKOWSKI, J. 2012. Glomeromycota. 303 pp. W. Szafer Institute of Botany, Polish Academy of Sciences, Kraków.

BŁASZKOWSKI, J., ADAMSKA, I. & CZERNIAWSKA, B. 2004. Glomus insculptum, a new arbuscular mycorrhizal species from Poland. Mycotaxon 89, 225-234.

CARVALHO, M.D.F., BARACHO, M.S. & BARACHO, I.R. 2002. Investigation of the nuclei of Hülle cells of Aspergillus nidulans. Genetic Molecular Biology 25, 485-488.View article

CHRISTENSEN, M., RAPER, K.B. & STATES, J.S. 1978. Two new Aspergillus nidulans group members from Wyoming soils. Mycologia 70, 332-342.View article

CLAY, K. 1991. Parasitic castration of plants by fungi. Trends in Ecology and Evolution 6, 162-166.View article

COLLINSON, J.W., HAMMER, W.R., ASKIN, R.A. & ELLIOT, D.H. 2006. Permian-Triassic boundary in the central Transantarctic Mountains, Antarctica. Geological Society of America Bulletin 118, 747-763.View article

COLLINSON, J.W., ISBELL, J.L., ELLIOT, D.H., MILLER, M.F. & MILLER, J.M.G. 1994. Permian-Triassic Transantarctic Basin, 173-222. In VEEVERS, J.J. & POWELL, C.M.A. (eds) PermianTriassic Pangean Basins and Foldbelts along the Panthalassan Margin of Gondwanaland. Geological Society of America Memoirs 184.

CROLL, D. & SANDERS, I.R. 2009. Recombination in Glomus intraradices, a supposed ancient asexual arbuscular mycorrhizal fungus. BMC Evolutionary Biology 9, 13.View article

CUMMINS, G.B. & HIRATSUKA, Y. 1984. Families of Uredinales. Reports of the Tottori Mycological Institute (Japan) 22, 191-208.

CÚNEO, N.R., ISBELL, J.L., TAYLOR, E.L. & TAYLOR, T.N. 1993. The Glossopteris flora from Antarctica: Taphonomy and paleoecology, 13-40. In ARCHANGELSKY, S. (ed.) 12 Congres International de Géologie du Carbonifere-Permian, Buenos Aires, Compte Rendu, Vol. 2.

CVETKOVIC, M.M. & VUKIC, V.V. 1972. Influence of light on Hülle cell and aleuriospore formation in Aspergillus. Transactions of the British Mycological Society 58, 67-72.View article

DAHLBERG, K.R. & VAN ETTEN, J.L. 1982. Physiology and biochemistry of fungal sporulation. Annual Review of Phytopathology 20, 281-301.View article

DALPÉ, Y., KOSKE, R.E. & TEWS, L.L. 1992. Glomus lamellosum sp. nov.: a new Glomaceae associated with beach grass. Mycotaxon 43, 289-293.

DECOMBEIX, A.L., TAYLOR, E.L. & TAYLOR, T.N. 2009. Secondary growth in Vertebraria roots from the Late Permian of Antarctica: A change in developmental timing. International Journal of Plant Sciences 170, 644-656.View article

DECOMBEIX, A.L., TAYLOR, E.L. & TAYLOR, T.N. 2010. Epicormic shoots in a Permian gymnosperm from Antarctica. International Journal of Plant Sciences 171, 772-782.View article

ELLIS, T.T., REYNOLDS, D.R. & ALEXOPOULOS, C.J. 1973. Hülle cells development in Emericella nidulans. Mycologia 65, 1029-1035.View article

FARABEE, M.J., TAYLOR, E.L. & TAYLOR, T.N. 1990. Correlation of Permian and Triassic palynomorph assemblages from the central Transantarctic Mountains, Antarctica. Review of Palaeobotany and Palynology 65, 257-265.View article

FARABEE, M.J., TAYLOR, E.L. & TAYLOR, T.N. 1991. Late Permian palynomorphs from the Buckley Formation, central Transantarctic Mountains, Antarctica. Review of Palaeobotany and Palynology 69, 353-368.View article

GALTIER, J. & PHILLIPS, T.L. 1999. The acetate peel technique, 67-70. In JONES, T.P. & ROWE, N.P. (eds) Fossil Plants and Spores: Modern Techniques. The Geological Society, London.

GALTIER, J. & TAYLOR, T.N. 1994. The first record of ferns from the Permian of Antarctica. Review of Palaeobotany and Palynology 83, 227-239.View article

GARCÍA MASSINI, J. 2007. A glomalean fungus from the Permian of Antarctica. International Journal of Plant Sciences 168, 673-678.View article

HARPER, C.J., DECOMBEIX, A.L., TAYLOR, E.L., TAYLOR, T.N. & KRINGS, M. 2017a. Fungal decay in Permian glossopteridalean stem and root wood from Antarctica. IAWA Journal 38, 29-48.View article

HARPER, C.J., KRINGS, M., DOTZLER, N., TAYLOR, E.L. & TAYLOR, T.N. 2017b. Deciphering interfungal relationships in the 410-million-yr-old Rhynie chert: Morphology and development of vesicle-colonizing microfungi. Geobios 50, 9-22.View article

HARPER, C.J., TAYLOR, T.N., KRINGS, M. & TAYLOR, E.L. 2013. Mycorrhizal symbiosis in the Paleozoic seed fern Glossopteris from Antarctica. Review of Palaeobotany and Palynology 192, 22-31.View article

HARPER, C.J., TAYLOR, T.N., KRINGS, M. & TAYLOR, E.L. 2015. Fungi associated with Glossopteris (Glossopteridales) leaves from the Permian of Antarctica: A preliminary report. Zitteliana A 55, 107-114.

HARPER, C.J., TAYLOR, T.N., KRINGS, M. & TAYLOR, E.L. 2016. Structurally preserved fungi from Antarctica: Diversity and interactions in late Palaeozoic and Mesozoic polar forest ecosystems. Antarctic Science 28, 153-173.View article

HELFER, S. 2014. Rust fungi and global change. New Phytologist 201, 770-780.View article

HOLDGATE, G.R., MCLOUGHLIN, S., DRINNAN, A.N., FINKELMAN, R.B., WILLETT, J.C. & CHIEHOWSKY, L.A. 2005. Inorganic chemistry, petrography and palaeobotany of Permian coals in the Prince Charles Mountains, East Antarctica. International Journal of Coal Geology 63, 156-177.View article

ISBELL, J.L. 1990. Fluvial sedimentology and basin analysis of the Permian Fairchild and Buckley Formations, Beardmore Glacier region, and the Weller Coal Measures, Southern Victoria Land, Antarctica. 388 pp. Ph.D. thesis, The Ohio State University, Columbus, USA.

JOY, K.W., WILLIS, A.J. & LACEY, W.S. 1956. A rapid cellulose peel technique in palaeobotany. Annals of Botany 20, 635-637.View article

KARATYGIN, I.V., SNIGIREVSKAYA, N.S. & DEMCHENKO, K.N. 2006. Species of the genus Glomites as plant mycobionts in Early Devonian ecosystems. Paleontological Journal 40, 572-579.View article

KETTUNEN, E., GRABENHORST, H., GRÖHN, C., DÖRFELT, H., SADOWSKI, E.M., RIKKINEN, J. & SCHMIDT, A.R. 2015. The enigmatic hyphomycete Torula sensu Caspary revisited. Review of Palaeobotany and Palynology 219, 183-193.View article

KHANNA, A., PAYAK, M.M. & MEHTA, S.C. 1966. Teliospore morphology of some smut fungi. I. Electron microscopy. Mycologia 58, 562-569.View article

KLAVINS, S.D., TAYLOR, E.L., KRINGS, M. & TAYLOR, T.N. 2001. An unusual, structurally preserved ovule from the Permian of Antarctica. Review of Palaeobotany and Palynology 115, 107-117.View article

KOSKE, R.E. & GEMMA, J.N. 1995. Scutellospora hawaiiensis: A new species of arbuscular mycorrhizal fungus from Hawaii. Mycologia 87, 678-683.View article

KRINGS, M. & TAYLOR, T.N. 2012. Fungal reproductive units enveloped in a hyphal mantle from the Lower Pennsylvanian of Great Britain, and their relevance to our understanding of Carboniferous fungal “sporocarps.” Review of Palaeobotany and Palynology 175, 1-9.View article

KRINGS, M. & TAYLOR, T.N. 2013. Zwergimyces vestitus (Kidston et WH Lang) nov. comb., a fungal reproductive unit enveloped in a hyphal mantle from the Lower Devonian Rhynie chert. Review of Palaeobotany and Palynology 190, 15-19.View article

KRINGS, M. & TAYLOR, T.N. 2015. Mantled fungal reproductive units in land plant tissue from the Lower Devonian Rhynie chert. Bulletin of Geosciences 90, 1-6.View article

KRINGS, M., TAYLOR, T.N., DOTZLER, N. & HARPER, C.J. 2016. Morphology and ontogenetic development of Zwergimyces vestitus, a fungal reproductive unit enveloped in a hyphal mantle from the Lower Devonian Rhynie chert. Review of Palaeobotany and Palynology 228, 47-56.View article

KRINGS, M., TAYLOR, T.N., KERP, H., WALKER, C. 2015. Deciphering interfungal relationships in the 410-million-yr-old Rhynie chert: Sporocarp formation in glomeromycotan spores. Geobios 48, 449-458.View article

KRINGS, M., WALKER, C., HARPER, C.J., MARTIN, H., SÓNYI, S., KUSTATSCHER, E. & TAYLOR, T.N. 2017. Unusual fungal reproductive units from the Lower Devonian Rhynie chert. Zitteliana A 89, 29-37.

KYLE, R.A. 1974. Plumsteadia ovata n. sp., a glossopterid fructification from South Victoria Land, Antarctica. New Zealand Journal of Geology and Geophysics 17, 719-721.View article

LAMBRECHT, L.L., LACEY, W.S. & SMITH, C.S. 1972. Observations on the Permian flora of the Law Glacier area, central Transantarctic Mountains. Bulletin de la Société Belge de Géologie, de Paléontologie et d’Hydrologie 81, 161-167.

MALLOCH, D. & CAIN, R.F. 1973. The genus Thielavia. Mycologia 65, 1055-1077.View article

MANTLE, D.J., KELMAN, A.P., NICOLL, R.S. & LAURIE, J.R. 2010. Australian Biozonation Chart. 1 p. Geoscience Australia, Canberra.

MCLOUGHLIN, S. & DRINNAN, A.N. 1996. Anatomically preserved Permian Noeggerathiopsis leaves from East Antarctica. Review of Palaeobotany and Palynology 92, 207-227.View article

MCLOUGHLIN, S., DRINNAN, A.N., SLATER, B.J. & HILTON, J. 2015. Paurodendron stellatum: A new Permian permineralized herbaceous lycopsid from the Prince Charles Mountains, Antarctica. Review of Palaeobotany and Palynology 220, 1-15.View article

MCLOUGHLIN, S., LINDSTRÖM, S. & DRINNAN, A.N. 1997. Gondwanan floristic and sedimentological trends during the Permian-Triassic transition: New evidence from the Amery Group, northern Prince Charles Mountains, East Antarctica. Antarctic Science 9, 281-298.View article

MCLOUGHLIN, S., SLATER, B., HILTON, J. & PREVEC, R. 2011. New vistas on animal-plant-fungal interactions in the Permian- Triassic of Gondwana. GFF 133, 66-67.

MONTECCHI, A., RUINI, S. & GROSS, G. 1996. Gigaspora lazzarii nov. sp. Rivista di Micologia 39, 21-28.

MOORE, R.T. & MCALEAR, J.H. 1962. Fine structure of mycota. 7. Observations on septa of Ascomycetes and Basidiomycetes. American Journal of Botany 49, 86-94.View article

NGUGI, H.K. & SCHERM, H. 2006. Biology of flower-infecting fungi. Annual Review of Phytopathology 44, 261-282.View article

OBERWINKLER, F. 1982. The significance of the morphology of the basidium in the phylogeny of basidiomycetes, 9-35. In WELLS, K. & WELLS, E.K. (eds) Basidium and Basidiocarp. Springer, Berlin, Heidelberg & New York. View article

OBERWINKLER, F. 1993. Diversity and phylogenetic importance of tropical heterobasidiomycetes, 121-147. In ISAAC, S., FRANKLAND, J.C., WATLING, R. & WHALLEY, A.J.S. (eds) Aspects of Tropical Mycology. Cambridge University Press, Cambridge.

O’DONNELL, K. 1979. Zygomycetes in Culture. Palfrey Contributions in Botany. No. 2. 257 pp. Department of Botany, University of Georgia, Athens.

OEHL, F., REDECKER, D. & SIEVERDING, E. 2005. Glomus badium, a new sporocarpic mycorrhizal fungal species from European grasslands with higher soil pH. Journal of Applied Botany and Food Quality 79, 38-43.

OEHL, F., WIEMKEN, A. & SIEVERDING, E. 2003. Glomus aureum, a new sporocarpic arbuscular mycorrhizal fungal species from European grasslands. Journal of Applied Botany 77, 111-115.

PIEPENBRING, M., BAUER, R. & OBERWINKLER, F. 1998. Teliospores of smut fungi. General aspects of teliospore walls and sporogenesis. Protoplasma 204, 155-169.View article

PRICE, P.L., FILATOFF, J., WILLIAMS, A.J., PICKERING, S.A. & WOOD, G.R. 1985. Late Palaeozoic and Mesozoic palynostratigraphic units, 1-20. In Queensland Department of Resource Industries Open File Report, CR14012. CSR Oil and Gas Division Palynology Facility Report 274/25.

RABATIN, S.C. & RHODES, L.H. 1982. Acaulospora bireticulata inside oribatid mites. Mycologia 74, 859-861.View article

RETALLACK, G.J., JAHREN, A.H., SHELDON, N.D., CHAKRABARTI, R., METZGER, C.A. & SMITH, R.M.H. 2005. The Permian-Triassic boundary in Antarctica. Antarctic Science 17, 241-258.View article

RIBGY, J.F., KWIECIEN, W. & WHITEHEAD, R.E. 2001. The geochemistry and palaeobotany of a Permian lake in Prince Charles Mountains, Antarctica, 409-419. In WEISS, R.H. (ed.) Contributions to Geology and Palaeontology of Gondwana in Honour of Helmut Wopfner. University of Cologne Geological Institute, Cologne.

ROESTI, D., INEICHEN, K., BRAISSANT, O., REDECKER, D., WIEMKEN, A. & ARAGNO, M. 2005. Bacteria associated with spores of the arbuscular mycorrhizal fungi Glomus geosporum and Glomus constrictum. Applied Environmental Microbiology 71, 6673-6679.View article

RYBERG, P.E. 2009. Reproductive diversity of Antarctic glossopterid seed-ferns. Review of Palaeobotany and Palynology 158, 167-179.View article

RYBERG, P.E. 2010. Lakkosia kerasata gen. et sp. nov., a permineralized megasporangiate glossopterid structure from the central Transantarctic Mountains, Antarctica. International Journal of Plant Sciences 171, 332-344.View article

RYBERG, P.E. & TAYLOR, E.L. 2013. Lonchiphyllum aplospermum gen. et sp. nov.: An anatomically preserved glossopterid megasporophyll from the Upper Permian of Skaar Ridge, Transantarctic Mountains, Antarctica. International Journal of Plant Sciences 174, 396-405.View article

RYBERG, P.E., TAYLOR, E.L. & TAYLOR, T.N. 2012a. The first permineralized microsporophyll of the Glossopteridales: Eretmonia macloughlinii sp. nov. International Journal of Plant Sciences 173, 812-822.View article

RYBERG, P.E., TAYLOR, E.L. & TAYLOR, T.N. 2012b. Permineralized lycopsid from the Permian of Antarctica. Review of Palaeobotany and Palynology 169, 1-6.View article

RYBERG, P.E., TAYLOR, E.L. & TAYLOR, T.N. 2012c. Antarctic glossopterid diversity on a local scale: The presence of multiple megasporophyll genera, Upper Permian, Mt. Achernar, Transantarctic Mountains, Antarctica. American Journal of Botany 99, 1531-1540.View article

SANTINI, A., PEPORI, A., GHELARDINI, L. & CAPRETTI, P. 2008. Persistence of some pine pathogens in coarse woody debris and cones in a Pinus pinea forest. Forest Ecology and Management 256, 502-506.View article

SCHOPF, J.M. 1970a. Petrified peat from a Permian coal bed in Antarctica. Science 169, 274-277.View article

SCHOPF, J.M. 1970b. Relation of floras of the Southern hemisphere to continental drift. Taxon 19, 657-674.View article

SCHOPF, J.M. 1971. Notes on plant tissue preservation and mineralization in a Permian deposit of peat from Antarctica. American Journal of Science 271, 522-543.View article

SCHOPF, J.M. 1976. Morphological interpretation of fertile structures in glossopterid gymnosperms. Review of Palaeobotany and Palynology 21, 25-64.View article

SCHÜßLER, A. & WALKER, C. 2010. The Glomeromycota: a species list with new families and genera. The Royal Botanical Garden Edinburgh, The Royal Botanic Garden Kew, Botanische Staatssammlung Munich, and Oregon State University. http://amf-phylogeny.com

SCHÜßLER, A. & WALKER, C. 2011. Evolution of the ’plant-symbiotic’ fungal phylum, Glomeromycota, 163-185. In PÖGGELER, S. & WÖSTEMEYER, J. (eds) Evolution of Fungi and Fungal-Like Organisms. The Mycota XIV. Springer Verlag, Berlin Heidelberg. View article

SLATER, B.J., MCLOUGHLIN, S. & HILTON, J. 2011. Guadalupian (Middle Permian) megaspores from a permineralised peat in the Bainmedart Coal Measures, Prince Charles Mountains, Antarctica. Review of Palaeobotany and Palynology 167, 140-155.View article

SLATER, B.J., MCLOUGHLIN, S. & HILTON, J. 2012. Animal-plant interactions in a Middle Permian permineralised peat of the Bainmedart Coal Measures, Prince Charles Mountains, Antarctica. Palaeogeography, Palaeoclimatology, Palaeoecology 363-364, 109-126.View article

SLATER, B.J., MCLOUGHLIN, S. & HILTON, J. 2015. A high-latitude Gondwanan Lagerstätte: The Permian permineralised peat biota of the Prince Charles Mountains, Antarctica. Gondwana Research 27, 1446-1473.View article

SMOOT, E.L. & TAYLOR, T.N. 1986. Structurally preserved fossil plants from Antarctica: II. A Permian moss from the Transantarctic Mountains. American Journal of Botany 73, 1683-1691.View article

SPATAFORA, J.W., JOHNSON, D., SUNG, G.H., HOSAKA, K., O’ROURKE, B., SERDANI, M., SPOTTS, R., LUTZONI, F., HOFSTETTER, V., FRAKER, E., GUEIDAN, C., MIADLIKOWSKA, J., REEB, V., LUMBSCH, T., LÜCKING, R., SCHMITT, I., APTROOT, A., ROUX, C., MILLER, A., GEISER, D., HAFELLNER, J., HESTMARK, G., ARNOLD, A.E., BÜDEL, B., RAUHUT, A., HEWITT, D., UNTEREINER, W., COLE, M.S., SCHEIDEGGER, C., SCHULTZ, M., SIPMAN, H. & SCHOCH, C. 2006. A five-gene phylogenetic analysis of the Pezizomycotina. Mycologia 98, 1020-1030.View article

SUGIYAMA, J., HOSAKA, K. & SUH, S.O. 2006. Early diverging Ascomycota: phylogenetic divergence and related evolutionary enigmas. Mycologia 98, 996-1005.View article

SUWANARIT, P., CHEWATANARUK, R., CHANTANAO, A. & SUWANAADTH, M. 1985. Species of fungi hyperparasitising on VA mycorrhizal fungi, 222-227. In Thailand National Corn and Sorghum Program 1985 Annual Report, Bangkok, Thailand.

TANDY, P.A. 1975. Sporocarpic species of Endogonaceae in Australia. Australian Journal of Botany 23, 849-866.View article

TAYLOR, T.N. & TAYLOR, E.L. 1987. Structurally preserved fossil plants from Antarctica. III. Permian seeds. American Journal of Botany 74, 904-913.View article

TAYLOR, E.L. & TAYLOR, T.N. 1992. Reproductive biology of the Permian Glossopteridales and their suggested relationship to flowering plants. Proceedings of the National Academy of Sciences of the United States of America 89, 11495-11497.View article

TAYLOR, T.N., HASS, H. & KERP, H. 1997. A cyanolichen from the Lower Devonian Rhynie chert. American Journal of Botany 84, 992-1004.View article

TAYLOR, T.N., KRINGS, M. & TAYLOR, E.L. 2015. Fossil Fungi. 382 pp. Academic Press, London.

TAYLOR, E.L., TAYLOR, T.N. & COLLINSON, J.W. 1989. Depositional setting and paleobotany of Permian and Triassic permineralized peat from the central Transantarctic Mountains, Antarctica.View article

TAYLOR, E.L., TAYLOR, T.N. & RYBERG, P.E. 2007. Ovule-bearing reproductive organs of the glossopterid seed ferns from the Late Permian of the Beardmore Glacier region, Antarctica. In COOPER, A.K. & RAYMOND, C.R. (eds) Antarctica: A Keystone in a Changing World. Proceedings of the 10th International Symposium on Antarctic Earth Sciences. US Geological Survey, Open-File Report 2007-1047, Short Research Paper 082. https://pubs.usgs.gov/of/2007/1047/srp/srp082/ View article

UCHIDA, W., MATSUNAGA, S., SUGIYAMA, R., KAZAMA, Y. & KAWANO, S. 2003. Morphological development of anthers induced by the dimorphic smut fungus Microbotryum violaceum in female flowers of the dioecious plant Silene latifolia. Planta 218, 240-248.View article

VUJANOVIC, V., ST-ARNAUD, M. & NEUMANN, P.J. 2000. Susceptibility of cones and seeds to fungal infection in a pine (Pinus spp.) collection. Forest Pathology 30, 305-320.View article

WALKER, C. 1982. Species in the Endogonaceae: A new species (Glomus occultum) and a new combination (Glomus geosporum). Mycotaxon 15, 49-61.

WALKER, C. 1983. Taxonomic concepts in the Endogonaceae: spore wall characteristics in species descriptions. Mycotaxon 18, 443-455.

WALKER, C. & TRAPPE, J.M. 1981. Acaulospora spinosa sp. nov. with a key to the species of Acaulospora. Mycotaxon 12, 515-521.

WEAVER, L., MCLOUGHLIN, S. & DRINNAN, A.N. 1997. Fossil woods from the Upper Permian Bainmedart Coal Measures, northern Prince Charles Mountains, East Antarctica. AGSO Journal of Australian Geology and Geophysics 16, 655-676.

WU, J. & MILLER, B.L. 1997. Aspergillus asexual reproduction and sexual reproduction are differentially affected by transcriptional and translational mechanisms regulating stunted gene expression. Molecular Cell Biology 17, 6191-6201.View article

YAO, Y.J., PEGLER, D.N. & YOUNG, T.W.K. 1995. New species in Endogone (Endogonales). Kew Bulletin 50, 359-365.View article