Assessment of natural mycorrhizal potential in a desertified semiarid ecosystem.

Applied and Environmental Microbiology
N RequenaJ M Barea

Abstract

A survey of the natural mycorrhizal potential has been carried out in a representative area of a desertified semiarid ecosystem in the southeast of Spain. Many indigenous plants from the field site were mycorrhizal, including the dominant Anthyllis cytisoides, which had high levels of colonization by arbuscular mycorrhizal fungi (AMF). Low numbers of AMF spores were present in the soil, although a range of species, including Scutellospora calospora, Glomus coronatum, Glomus constrictum, and several Acaulospora species, was represented. Soil infectivities, as determined by a soil dilution method, were similar for most plants tested but were significantly lower for Anthyllis cytisoides. Nevertheless, when a less disruptive method to determine soil infectivity was used, the importance of the mycelial network in maintaining the infectivity of soil under perennial shrubs, such as Anthyllis cytisoides, was highlighted. Seasonal variations in the mycorrhizal infectivity showed that it was higher towards the end of the summer period than in midwinter. In screening trials in a greenhouse, the indigenous AMF did not significantly improve the growth of plants compared with that of noninoculated controls. Augmentation of the soil with an i...Continue Reading

References

Jan 1, 1992·Applied and Environmental Microbiology·D M Sylvia, A G Jarstfer

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Citations

Feb 16, 2008·The New Phytologist·Francis Martin
Jun 18, 2003·Mycorrhiza·Luís M CarvalhoM Amélia Martins-Loução
Feb 7, 2001·Applied and Environmental Microbiology·N RequenaJ M Barea
Jan 27, 2010·Ecology Letters·Jason D HoeksemaJames Umbanhowar
May 18, 2018·FEMS Microbiology Ecology·Elisabeth ArmadaEiko E Kuramae
Jan 31, 2019·The New Phytologist·Anais GibertMark Westoby
Jan 25, 2016·Phytochemistry·Ingrid LenoirAnissa Lounès-Hadj Sahraoui

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