In vitro evidence of root colonization suggests ecological versatility in the genus Mycena

In vitro evidence of root colonization suggests ecological versatility in the genus Mycena

© 2020 The Authors. New Phytologist © 2020 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 227(2020), 2 vom: 15. Juli, Seite 601-612
1. Verfasser: Thoen, Ella (VerfasserIn)
Weitere Verfasser: Harder, Christoffer Bugge, Kauserud, Håvard, Botnen, Synnøve S, Vik, Unni, Taylor, Andy F S, Menkis, Audrius, Skrede, Inger
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Mycena biotrophy-saprotrophy continuum ecological niches functional diversity root-associations
Beschreibung
Zusammenfassung:© 2020 The Authors. New Phytologist © 2020 New Phytologist Trust.
The root-associated habit has evolved on numerous occasions in different fungal lineages, suggesting a strong evolutionary pressure for saprotrophic fungi to switch to symbiotic associations with plants. Species within the ubiquitous, saprotrophic genus Mycena are frequently major components in molecular studies of root-associated fungal communities, suggesting that an evaluation of their trophic status is warranted. Here, we report on interactions between a range of Mycena species and the plant Betula pendula. In all, 17 Mycena species were inoculated onto B. pendula seedlings. Physical interactions between hyphae and fine roots were examined using differential staining and fluorescence microscopy. Physiological interactions were investigated using 14 C and 32 P to show potential transfer between symbionts. All Mycena species associated closely with fine roots, showing hyphal penetration into the roots, which in some cases were intracellular. Seven species formed mantle-like structures around root tips, but none formed a Hartig net. Mycena pura and Mycena galopus both enhanced seedling growth, with M. pura showing significant transfer of 32 P to the seedlings. Our results support the view that several Mycena species can associate closely with plant roots and some may potentially occupy a transitional state between saprotrophy and biotrophy
Beschreibung:Date Completed 14.05.2021
Date Revised 14.05.2021
published: Print-Electronic
GENBANK: MT153125, MT153149
Citation Status MEDLINE
ISSN:1469-8137
DOI:10.1111/nph.16545