journal article Dec 24, 2014

Temporal patterns of orchid mycorrhizal fungi in meadows and forests as revealed by 454 pyrosequencing

New Phytologist Vol. 205 No. 4 pp. 1608-1618 · Wiley
View at Publisher Save 10.1111/nph.13223
Abstract
Summary


Orchid mycorrhizal (OrM) symbionts play a key role in the growth of orchids, but the temporal variation and habitat partitioning of these fungi in roots and soil remain unclear.

Temporal changes in root and rhizosphere fungal communities of Cypripedium calceolus, Neottia ovata and Orchis militaris were studied in meadow and forest habitats over the vegetation period by using 454 pyrosequencing of the full internal transcribed spacer (ITS) region.

The community of typical OrM symbionts differed by plant species and habitats. The root fungal community of N. ovata changed significantly in time, but this was not observed in C. calceolus and O. militaris. The rhizosphere community included a low proportion of OrM symbionts that exhibited a slight temporal turnover in meadow habitats but not in forests. Habitat differences in OrM and all fungal associates are largely attributable to the greater proportion of ectomycorrhizal fungi in forests.

Temporal changes in OrM fungal communities in roots of certain species indicate selection of suitable fungal species by plants. It remains to be elucidated whether these shifts depend on functional differences inside roots, seasonality, climate or succession.
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References
75
[12]
Delforge P (2006)
[17]
[24]
Illyes Z "Changes in the diversity of the mycorrhizal fungi of orchids as a function of the water supply of the habitat" Journal of Applied Botany and Food Quality (2009)
[27]
Coexisting orchid species have distinct mycorrhizal communities and display strong spatial segregation

Hans Jacquemyn, Rein Brys, Vincent S. F. T. Merckx et al.

New Phytologist 10.1111/nph.12640
[29]
Analysis of network architecture reveals phylogenetic constraints on mycorrhizal specificity in the genus Orchis (Orchidaceae)

Hans Jacquemyn, Vincent Merckx, Rein Brys et al.

New Phytologist 10.1111/j.1469-8137.2011.03796.x
[31]
MAFFT Multiple Sequence Alignment Software Version 7: Improvements in Performance and Usability

K. Katoh, D. M. Standley

Molecular Biology and Evolution 10.1093/molbev/mst010
[32]
Reciprocal Rewards Stabilize Cooperation in the Mycorrhizal Symbiosis

E. Toby Kiers, Marie Duhamel, Yugandhar Beesetty et al.

Science 10.1126/science.1208473
[35]
Kull T "Identification of clones in Cypripedium calceolus L. (Orchidaceae). Proceedings of the Academy of Sciences of the Estonian ssr" Biology (1988)
[47]
OksanenJ BlanchetG KindtR LegendreP MinchinPR O'HaraRB SimpsonGL SolymosP StevensHH WagnerH.2013.Vegan: community ecology package. R Package Version 2.0‐8. [WWW document] URLhttp://CRAN.R-project.org/package=vegan. [accessed 18 November 2013].
[48]
R Development Core Team (2014)

Showing 50 of 75 references