PMID- 26984185 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20160407 LR - 20240327 IS - 2041-2851 (Print) IS - 2041-2851 (Electronic) VI - 8 DP - 2016 TI - Impact of an invasive nitrogen-fixing tree on arbuscular mycorrhizal fungi and the development of native species. LID - plw018 [pii] LID - 10.1093/aobpla/plw018 [doi] AB - Arbuscular mycorrhizal fungi (AMF) are obligate soil biotrophs that establish intimate relationships with 80 % of terrestrial plant families. Arbuscular mycorrhizal fungi obtain carbon from host plants and contribute to the acquisition of mineral nutrients, mainly phosphorus. The presence of invasive plants has been identified as a soil disturbance factor, often conditioning the structure and function of soil microorganisms. Despite the investigation of many aspects related to the invasion ofAcacia dealbata, the effect produced on the structure of AMF communities has never been assessed. We hypothesize thatA. dealbatamodifies the structure of AMF community, influencing the establishment and growth of plants that are dependent on these mutualisms. To validate our hypothesis, we carried out denaturing gradient gel electrophoresis (DGGE) analysis and also grew plants ofPlantago lanceolatain pots using roots of native shrublands or fromA. dealbata, as inoculum of AMF. Cluster analyses from DGGE indicated an alteration in the structure of AMF communities in invaded soils. After 15 weeks, we found that plants grown in pots containing native roots presented higher stem and root growth and also produced higher biomass in comparison with plants grown withA. dealbatainoculum. Furthermore, plants that presented the highest biomass and growth exhibited the maximum mycorrhizal colonization and phosphorus content. Moreover, fluorescence measurements indicated that plants grown withA. dealbatainoculum even presented higher photosynthetic damage. Our results indicate that the presence of the invaderA. dealbatamodify the composition of the arbuscular fungal community, conditioning the establishment of native plants. CI - Published by Oxford University Press on behalf of the Annals of Botany Company. FAU - Guisande-Collazo, Alejandra AU - Guisande-Collazo A AD - Department of Plant Biology and Soil Science, University of Vigo, 36310 Vigo, Spain aleguisande@uvigo.es. FAU - Gonzalez, Luis AU - Gonzalez L AD - Department of Plant Biology and Soil Science, University of Vigo, 36310 Vigo, Spain. FAU - Souza-Alonso, Pablo AU - Souza-Alonso P AD - Department of Plant Biology and Soil Science, University of Vigo, 36310 Vigo, Spain. LA - eng PT - Journal Article DEP - 20160406 PL - England TA - AoB Plants JT - AoB PLANTS JID - 101539425 PMC - PMC4823375 OTO - NOTNLM OT - Acacia dealbata OT - DGGE OT - Plantago lanceolata OT - microbial community structure OT - plant invasion OT - root inoculum OT - soil sterilization EDAT- 2016/03/18 06:00 MHDA- 2016/03/18 06:01 PMCR- 2016/01/01 CRDT- 2016/03/18 06:00 PHST- 2015/11/18 00:00 [received] PHST- 2016/03/02 00:00 [accepted] PHST- 2016/03/18 06:00 [entrez] PHST- 2016/03/18 06:00 [pubmed] PHST- 2016/03/18 06:01 [medline] PHST- 2016/01/01 00:00 [pmc-release] AID - plw018 [pii] AID - 10.1093/aobpla/plw018 [doi] PST - epublish SO - AoB Plants. 2016 Apr 6;8:plw018. doi: 10.1093/aobpla/plw018. Print 2016.