Seed and root endophytic fungi in a range expanding and a related plant species

Stefan Geisen (Corresponding author), Olga Kostenko, Mark C. Cnossen, Freddy C. ten Hooven, Branko Vreš, Wim H. van Der Putten

Research output: Contribution to journal/periodicalArticleScientificpeer-review

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Climate change is accelerating the spread of plants and their associated species to new ranges. The differences in range shift capacity of the various types of species may disrupt long-term co-evolved relationships especially those belowground, however, this may be less so for seed-borne endophytic microbes. We collected seeds and soil of the range-expanding Centaurea stoebe and the congeneric C. jacea from three populations growing in Slovenia (native range of both Centaurea species) and the Netherlands (expanded range of C. stoebe, native range of C. jacea). We isolated and identified endophytic fungi directly from seeds, as well as from roots of the plants grown in Slovenian, Dutch or sterilized soil to compare fungal endophyte composition. Furthermore, we investigated whether C. stoebe hosts a reduced community composition of endophytes in the expanded range due to release from plant-species specific fungi while endophyte communities in C. jacea in both ranges are similar.We cultivated 46 unique and phylogenetically diverse endophytes. A majority of the seed endophytes resembled potential pathogens, while most root endophytes were not likely to be pathogenic. Only one endophyte was found in both roots and seeds, but was isolated from different plant species. Unexpectedly, seed endophyte diversity of southern C. stoebe populations was lower than of populations from the north, while the seed endophyte community composition of northern C. stoebe populations was significan...
Original languageEnglish
Article number01645
JournalFrontiers in Microbiology
Early online date2017
Publication statusPublished - 2017


  • Endophytes Fungi Range expanding plant species cultivation phylogeny Soil Seeds Soil sterilization
  • international


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