title: Conidia of Trichoderma virens as a phosphorus source for mycorrhizal Pinus sylvestris seedlings.
abstract: In this study, the mobilization and further translocation of phosphorus from conidia of saprotrophic fungus Trichoderma virens into Pinus sylvestris seedlings by nondestructive measuring of (32)P was assessed. The radioactive phosphorus flux from the conidia to the Scots pine seedlings forming mycorrhiza with Laccaria laccata and Suillus bovinus amounted up to 27.82% and 7.42%, respectively, on the 28th day of the experiment, while at the same time in nonmycorrhizal pine seedlings, the detected radioactivity reached only 0.56%. Our studies revealed that both ectomycorrhizal fungi: L. laccata and S. bovinus, mobilized the phosphorus from radioactive conidia of T. virens. On this basis, we conclude that activities of the mycosymbionts may facilitate absorption and further translocation of phosphorus from organic matter into the host plants.
authors.affiliation: Laboratory of Root Pathology, Institute of Dendrology, Polish Academy of Sciences, Parkowa 5, 62-035, Kórnik, Poland. zadworny@man.poznan.pl.
authors.forename: Marcin
authors.initials: M
authors.lastname: Zadworny
authors.affiliation: Institute of Chemistry, Poznań University of Technology, Piotrowo 3, 60-965, Poznań, Poland.
authors.forename: Zbigniew
authors.initials: Z
authors.lastname: Górski
authors.affiliation: Institute of Chemistry, Poznań University of Technology, Piotrowo 3, 60-965, Poznań, Poland.
authors.forename: Elżbieta
authors.initials: E
authors.lastname: Koczorowska
authors.affiliation: Laboratory of Root Pathology, Institute of Dendrology, Polish Academy of Sciences, Parkowa 5, 62-035, Kórnik, Poland.
authors.forename: Antoni
authors.initials: A
authors.lastname: Werner
mesh_terms: D017753:Ecosystem; D055399:Laccaria / Q000378:metabolism; D038821:Mycorrhizae / Q000378:metabolism*; D010761:Phosphorus Radioisotopes / Q000378:metabolism; D041605:Pinus sylvestris / Q000378:metabolism / Q000382:microbiology; D036226:Seedlings / Q000378:metabolism / Q000382:microbiology; D012988:Soil Microbiology; D013172:Spores, Fungal / Q000378:metabolism; D014242:Trichoderma / Q000378:metabolism*
chemical_list: D010761:Phosphorus Radioisotopes