title: AM and DSE colonization of invasive plants in urban habitat: a study of Upper Silesia (southern Poland).
abstract: Interactions between invasive plants and root endophytes may contribute to the exploration of plant invasion causes. Twenty plant species of alien origin differing in invasiveness were studied in terms of status and typical structures of arbuscular mycorrhizal fungi and dark septate endophytes (DSE) in urban habitats in Silesia Upland (southern Poland). We observed that 75 % of investigated plant species were mycorrhizal. The arbuscular mycorrhiza (AM) of most plant species was of the Arum morphology. The nearly 100 % mycorrhizal frequency, high intensity of AM colonization within root cortex and the presence of arbuscules in all mycorrhizal plant species indicate that the investigated species are able to establish AM associations in the secondary range and urban habitats. DSE were present in all mycorrhizal and non-mycorrhizal species. The frequency of DSE was significantly lower in non-mycorrhizal group of plants, however, sclerotia of DSE were found mainly in the roots of non-mycorrhizal plant species. The group of species native to North America including three Solidago congeners have the highest values of all AM mycorrhization and DSE indices. Moreover, we observed that most mycorrhizal invasive species belonged to the family Asteraceae. In turn, representatives of Poaceae had the lowest values of AM mycorrhization. Nevertheless, quite high values of DSE frequency were also encountered in roots of Poaceae species. The high invasiveness of the representatives of the Asteraceae family from North America support theory that both taxonomic pattern, and the fact of root endophytes colonization contribute to invasion success. While, the taxa of Reynoutria also represent successful invaders but they are of Asiatic origin, non-mycorrhizal and weakly colonized by DSE fungi.
authors.affiliation: Department of Botany and Nature Protection, Faculty of Biology and Environmental Protection, University of Silesia, Jagiellonska 28, 40-032, Katowice, Poland. egucwaprzepiora@gmail.com.
authors.forename: Ewa
authors.initials: E
authors.lastname: Gucwa-Przepióra
authors.affiliation: Institute of Environmental Protection and Engineering, Faculty of Materials, Civil and Environmental Engineering, University of Bielsko-Biała, 2 Willowa Street, 43-309, Bielsko-Biała, Poland.
authors.forename: Damian
authors.initials: D
authors.lastname: Chmura
authors.affiliation: Department of Botany and Nature Protection, Faculty of Biology and Environmental Protection, University of Silesia, Jagiellonska 28, 40-032, Katowice, Poland.
authors.forename: Kamila
authors.initials: K
authors.lastname: Sokołowska
mesh_terms: D002947:Cities; D016000:Cluster Analysis; D017753:Ecosystem; D060026:Endophytes / Q000502:physiology*; D058865:Introduced Species; D009010:Monte Carlo Method; D038821:Mycorrhizae / Q000502:physiology*; D010944:Plants / Q000382:microbiology*; D011044:Poland; D013045:Species Specificity
keywords: Biological invasion; Goldenrod; Knotweed; Neophytes; Plant-microbial interactions; Root endophytes; Species invasiveness