The soil fungal communities in nurseries producing Abies alba

  • Jolanta Behnke-Borowczyk Department of Forest Pathology, Poznan University of Life Sciences, Wojska Polskiego 71c, 60-625 Poznan, Poland
  • Wojciech Kowalkowski Department of Silviculture, Poznan University of Life Sciences, Wojska Polskiego 71a, 60-625 Poznan
  • Natalia Kartawik Department of Forest Pathology. Poznan University of Life Sciences. Wojska Polskiego 71c, 60-625 Poznan
  • Mariena Baranowska Department of Silviculture, Poznan University of Life Sciences, Wojska Polskiego 71a, 60-625 Poznan
  • Wladyslaw Barzdajn Department of Silviculture, Poznan University of Life Sciences, Wojska Polskiego 71a, 60-625 Poznan

Abstract

Silver fir is an important forest-forming species in the mountain and upland parts of Poland. It was determined that fir lost the possibility of spontaneous return to the forests of the region. That is why the Polish State Forests has launched a programme to restore its resources in the Sudetes. Until now, fungi and their relationship with fir have not been fully addressed in the Sudetes Restitution Programme, therefore this study was undertaken. The aim of this study was to determine the species composition of soil fungi from quarters producing silver fir seedlings. The research material was rhizosphere soil collected from 3-year-old saplings produced in forest nurseries of the Międzylesie Forest District. Fungal composition was determined by Next-Generation sequencing (Illumina NextSeq 500). The total number of OTUs obtained (638 435) included sequences of cultivated horcultured fungi (433 412 OTUs = 52.7%), non-cultivable fungi, that is which cannot be cultured (97 108 OTUs = 22.41 %) and potential fungi with no reference sequence in UNITE (73 419 OTUs = 16.93%) and non-fungal organisms (34 496 = 7.96%). The following taxa as Mortierella sp. (8.23%). Tylospora sp. (6.68%) and Russula sp. (3.76%) had the largest share in the soil fungal communities. The results of the study indicate the dominance of saprotrophic and mycorrhizal fungi in the communities of fir roots, which proves that saplings are of good quality. Small share of pathogens sequences suggests that soil-born fungal pathogens are not a major threat to fir seedlings in nurseries. Key words: mycorrhizal fungi, nursery, Abies alba, seedlings, Międzylesie Forest District.
Published
2020-04-02
Section
Biodiversity