Arbuscular mycorrhizal community structure on co-existing tropical legume trees in French Guiana
Affiliation
Environmental Sustainability Research Centre, College of Life and Natural SciencesUniversity of DerbyIssue Date
2016-02-10
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Aims We aimed to characterise the arbuscular mycorrhizal fungal (AMF) community structure and potential edaphic determinants in the dominating, but poorly described, root-colonizing Paris-type AMF community on co-occurring Amazonian leguminous trees. Methods Three highly productive leguminous trees (Dicorynia guianensis, Eperua falcata and Tachigali melinonii were targeted) in species-rich forests on contrasting soil types at the Nouragues Research Station in central French Guiana. Abundant AMF SSU rRNA amplicons (NS31-AM1 & AML1-AML2 primers) from roots identified via trnL profiling were subjected to denaturing gradient gel electrophoresis (DGGE), clone library sequencing and phylogenetic analysis. Results Classical approaches targeting abundant SSU amplicons highlighted a diverse root-colonizing symbiotic AMF community dominated by members of the Glomeraceae. DGGE profiling indicated that, of the edaphic factors investigated, soil nitrogen was most important in influencing the AMF community and this was more important than any host tree species effect. Conclusions Dominating Paris-type mycorrhizal leguminous trees in Amazonian soils host diverse and novel taxa within the Glomeraceae that appear under edaphic selection in the investigated tropical forests. Linking symbiotic diversity of identified AMF taxa to ecological processes is the next challenge ahead.Citation
Bearley, F. O. et al (2016) 'Arbuscular mycorrhizal community structure on co-existing tropical legume trees in French Guiana', Plant and Soil, 403 (1-2):253. DOI: 10.1007/s11104-016-2818-0Publisher
SpringerJournal
Plant and SoilDOI
10.1007/s11104-016-2818-0Additional Links
http://link.springer.com/10.1007/s11104-016-2818-0Type
ArticleLanguage
enISSN
0032-079X1573-5036
ae974a485f413a2113503eed53cd6c53
10.1007/s11104-016-2818-0