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Southern hemisphere botanical ecosystems
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RESEARCH ARTICLE
Contents Vol 55(2)

Comparison of fungal endophyte communities in the invasive panicoid grass Hyparrhenia hirta and the native grass Bothriochloa macra

Ian R. White A and David Backhouse A B
+ Author Affiliations
- Author Affiliations

A School of Environmental Sciences and Natural Resources Management, University of New England, Armidale, NSW 2351, Australia.

B Corresponding author. Email: dbackhou@une.edu.au

Australian Journal of Botany 55(2) 178-185 https://doi.org/10.1071/BT06125
Submitted: 16 June 2006  Accepted: 23 October 2006   Published: 16 March 2007

Abstract

Communities of fungal endophytes from roots, stems and leaves of the introduced grass Hyparrhenia hirta (Coolatai grass) and the native species Bothriochloa macra (redgrass) were compared at two sites to identify characteristics that may be associated with invasiveness of H. hirta. The most frequently isolated fungi from both hosts were species of Nigrospora, Alternaria, Cladosporium, Phoma, Epicoccum, Fusarium and Periconia. Most of these occurred at a similar frequency in the two hosts, although Nigrospora sphaerica was much more frequently isolated from H. hirta at both sites. There was little support for the hypothesis that the introduced species (H. hirta) would have a less diverse endophyte community than the native species. There was a greater degree of dominance by the most frequent species in communities from H. hirta than from B. macra, leading to lower diversity indices, but no significant difference in species richness. Cluster analysis of the endophyte communities suggested that host had a greater influence than site on community structure, and that this was expressed mostly in the relative frequency of fungi isolated from stems and leaves, with very similar fungal communities present in the roots of both species at both sites. Analysis of co-occurrence showed no evidence that competition among fungi affected community structure within individual plants. The dominance of N. sphaerica in H. hirta was therefore due to fungus–plant interactions rather than fungus–fungus interactions. Interactions with N. sphaerica could potentially affect the population ecology of H. hirta.


References


Bettucci L, Alonso R, Tiscornia S (1999) Endophytic mycobiota of healthy twigs and the assemblage of species associated with twig lesions of Eucalyptus globulus and E. grandis in Uruguay. Mycological Research 103, 468–472.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Cabral D, Stone JK, Carroll GC (1993) The internal mycobiota of Juncus spp.: microscopic and cultural observations of infection patterns. Mycological Research 97, 367–376. open url image1

Caretta G, Piontelli E, Picco AM, Del Frate G (1999) Some filamentous fungi on grassland vegetation from Kenya. Mycopathologia 145, 155–169.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Choi GJ, Kim JC, Shon MJ, Kim HT, Cho KY (2000) Phytotoxin production of Nigrospora sphaerica pathogenic on turfgrasses. Plant Pathology Journal 16, 137–141. open url image1

Clay K (1990) The impact of parasitic and mutualistic fungi on competitive interactions among plants. In ‘Perspectives on plant competition’. (Eds JP Grace, P Tilman) pp. 391–412. (Academic Press: San Diego, CA)

Colwell RK (2004) EstimateS: statistical estimation of species richness and shared species from samples. Version 7. User’s Guide and application. Available at: http://purl.oclc.org/estimates

Colwell RK, Mao CX, Chang J (2004) Interpolating, extrapolating and comparing incidence-based species accumulation curves. Ecology 85, 2717–2727. open url image1

Danielsen S, Funck Jensen D (1999) Fungal endophytes from stalks of tropical maize and grasses: isolation, identification and screening for antagonism against Fusarium verticillioides in maize stalks. Biocontrol Science and Technology 9, 545–553.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Dickenson CH (1981) Biology of Alternaria alternata, Cladosporium cladosporioides and C. herbarum in respect of their activity on green plants. In ‘Microbial ecology of the phylloplane’. (Ed. JP Blakeman) pp. 169–184. (Academic Press: London)

Ellis MB (1971) ‘Dematiaceous hyphomycetes.’ (Commonwealth Mycological Institute, Kew: London)

Fisher PJ, Petrini O (1992) Fungal saprobes and pathogens as endophytes of rice (Oryza sativa L.). New Phytologist 120, 137–143.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Fisher PJ, Petrini O, Lappin-Scott HM (1992) The distribution of some fungal and bacterial endophytes in maize (Zea mays L.). New Phytologist 122, 299–305.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Fisher PJ, Petrini O, Sutton BC (1993) A comparative study of endophytes in leaves, xylem and bark of Eucalyptus in Australia and England. Sydowia 45, 338–345. open url image1

Gjaerum HB (1988) Rust fungi (Uredinales) on the genus Hyparrhenia (Poaceae). Mycotaxon 32, 143–160. open url image1

Gotelli NJ (2000) Null model analysis of species co-occurrence patterns. Ecology 81, 2606–2621.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Gotelli NJ , Entsminger GL (2001) ‘EcoSim: null models software for ecology. Version 7.0.’ (Acquired Intelligence Inc. & Kesey-Bear). Available at: http://homepages.together.net/~gentsmin/ecosim.htm

Kim J-C, Choi GJ, Park J-H, Kim HT, Cho KY (2001) Activity against plant pathogenic fungi of phomalactone isolated from Nigrospora sphaerica. Pest Management Science 57, 554–559.
| Crossref | GoogleScholarGoogle Scholar | PubMed | open url image1

Loveless AR (1985) The occurrence of ergot fungi (Clavicipitales) on the genus Hyparrhenia in southern Africa. Botanical Journal of the Linnean Society 91, 491–501. open url image1

Mathews S, Spangler RE, Mason-Gamer RJ, Kellogg EA (2002) Phylogeny of Andropogoneae inferred from phytochrome B, GBSSI, and NDHF. International Journal of Plant Sciences 163, 441–450.
| Crossref | GoogleScholarGoogle Scholar | open url image1

McArdle SL, Nadolny C, Sindel BM (2004) Invasion of native vegetation by Coolatai grass (Hyparrhenia hirta (L.) Stapf): impacts on native vegetation and management implications. Pacific Conservation Biology 10, 49–56. open url image1

Nirenberg H (1976) Untersuchungen über die morphologische und biologische Differenzierung in der Fusarium-Sektion Liseola. Mitteilungen aus der Biologische Bundesanstalt für Land- und Forstwirtschaf Berlin-Dahlem 169, 1–117. open url image1

Perelló A, Simón MR, Arambarri AM, Cordo CA (2001) Greenhouse screening of the saprophytic resident microflora for control of leaf spots of wheat (Triticum aestivum). Phytoparasitica 29, 341–351. open url image1

Petrini O (1996) Ecological and physiological aspects of host specificity in endophytic fungi. In ‘Endophytic fungi in grasses and woody plants: systematics, ecology and evolution’. (Eds SC Redlin, LM Carris) pp. 87–100. (APS Press: St Paul, MN)

Reed JE, Partridge JE, Nordquist PT (1983) Fungal colonization of stalks and roots of grain sorghum during the growing season. Plant Disease 64, 417–420. open url image1

Rodriguez RJ , Redman RS , Henson JM (2005) Symbiotic lifestyle expression by fungal endophytes and the adaptation of plants to stress: unravelling the complexities of intimacy. In ‘The fungal community: its organization and role in the ecosystem’. 3rd edn. (Eds J Dighton, JF White, P Oudemans) pp. 683–695. (CRC Press: Boca Raton, FL)

Schulz B, Boyle C (2005) The endophytic continuum. Mycological Research 109, 661–686.
| Crossref | GoogleScholarGoogle Scholar | PubMed | open url image1

Smiley RW , Dernoeden PH , Clarke BB (1992) ‘Compendium of turfgrass diseases.’ 2nd edn. (APS Press: St Paul, MN)

Starratt AN, Loschiavo SR (1974) The production of aphidicolin by Nigrospora sphaerica. Canadian Journal of Microbiology 20, 416–417.
| PubMed |
open url image1

Vánky K, Deml G, Oberwinkler F (1988) The smut fungi of Hyparrhenia hirta (Gramineae). Journal of Phytopathology 121, 181–191. open url image1

Wheeler DJB , Jacobs SWL , Whalley RDB (2002) ‘Grasses of New South Wales.’ 3rd edn. (University of New England: Armidale, NSW)

Wirsel SFG, Leibinger W, Ernst M, Mendgen K (2001) Genetic diversity of fungi closely associated with common reed. New Phytologist 149, 589–598.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Wong MKM, Hyde KD (2001) Diversity of fungi on six species of Gramineae and one species of Cyperaceae in Hong Kong. Mycological Research 105, 1485–1491. open url image1

Zak JC , Willig MR (2004) Fungal biodiversity patterns. In ‘Biodiversity of fungi: inventory and monitoring methods’. (Eds GM Mueller, GF Bills, MS Foster) pp. 59–75. (Elsevier Academic Press: Burlington, MA)