Arbuscular mycorrhizal fungi in soil and roots respond differently to phosphorus inputs in an intensively managed calcareous agricultural soil

A - Papers appearing in refereed journals

Liu, W., Zhang, Y. L., Jiang, S. S., Deng, Y., Christie, P., Murray, P. J., Li, X. L. and Zhang, J. L. 2016. Arbuscular mycorrhizal fungi in soil and roots respond differently to phosphorus inputs in an intensively managed calcareous agricultural soil. Scientific Reports. 6, p. 24902.

AuthorsLiu, W., Zhang, Y. L., Jiang, S. S., Deng, Y., Christie, P., Murray, P. J., Li, X. L. and Zhang, J. L.
Abstract

Understanding the diversity and community structure of arbuscular mycorrhizal fungi (AMF) is important for potentially optimizing their role in mining phosphorus (P) in agricultural ecosystems. Here, we conduct a comprehensive study to investigate the vertical distribution of AMF in a calcareous field and their temporal structure in maize-roots with fertilizer P application over a three-year period. The results showed that soil available-P response to P fertilization but maize yields did not. Phosphorus fertilization had no-significant effect on richness of AMF except at greater soil-depths. High P-supply reduced root colonization while optimum-P tended to increase colonization and fungal richness on all sampling occasions. Crop phenology might override P-supply in determining the community composition of active root inhabiting fungi. Significant differences in the community structure of soil AMF were observed between the controls and P treatments in surface soil and the community shift was attributable mainly to available-P, N/P and pH. Vertical distribution was related mainly to soil electrical conductivity and Na content. Our results indicate that the structure of AMF community assemblages is correlated with P fertilization, soil depth and crop phenology. Importantly, phosphorus management must be integrated with other agricultural-practices to ensure the sustainability of agricultural production in salinized soils.

Year of Publication2016
JournalScientific Reports
Journal citation6, p. 24902
Digital Object Identifier (DOI)doi:10.1038/srep24902
Open accessPublished as ‘gold’ (paid) open access
FunderBiotechnology and Biological Sciences Research Council
Funder project or codeSoils for Sustainable Agriculture and Environment
Publisher's version
Copyright license
CC BY
Output statusPublished
Publication dates
Online22 Apr 2016
Publication process dates
Accepted06 Apr 2016
PublisherSpringer Nature
Nature Publishing Group
ISSN2045-2322

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