Effect of Deadwood on Ectomycorrhizal Colonisation of Old-Growth Oak Forests

Forests

Marcin Studnicki¹  RomanMariusz Bzdyk²  Dorota Hilszczańska²  Zbigniew Borowski²  Tadeusz Malewski³  Jacek Olchowik⁴ 

[1] Department of Experimental Design and Bioinformatics, Faculty of Agriculture and Biology, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland;Department of Forest Ecology, Forest Research Institute, Braci Leśnej 3, Sękocin Stary, 05-090 Raszyn, Poland;Department of Molecular and Biometric Techniques, Museum and Institute of Zoology, Polish Academy of Science, Wilcza 64, 00-679 Warsaw, Poland;Department of Plant Pathology, Faculty of Horticulture, Biotechnology and Landscape Architecture, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland;

关键词: Białowieża;    coarse woody debris;    Quercus robur;    ectomycorrhizae;    exploration type;   

DOI  :  10.3390/f10060480

来源: DOAJ

【 摘 要 】

Although the importance of coarse woody debris (CWD) for species diversity is recognized, the effects of coarse woody debris decay class on species composition have received little attention. We examined how the species composition of ectomycorrhizal fungi (ECM) changes with CWD decay. We describe ectomycorrhizal root tips and the diversity of mycorrhizal fungal species at three English oak (Quercus robur L.) sites. DNA barcoding revealed a total of 17 ECM fungal species. The highest degree of mycorrhizal colonization was found in CWD_advanced (27.2%) and CWD_early (27.1%). Based on exploration types, ectomycorrhizae were classified with respect to ecologically relevant soil features. The short distance type was significantly correlated with soil P₂O₅, while the contact type was correlated with soil C/N. The lowest mean content of soil C_org was found in the CWD_absent site. The difference in total soil N between sites decreased with increasing CWD decomposition, whereas total C/N increased correspondingly. In this study we confirmed that soil CWD stimulates ectomycorrhizal fungi, representing contact or short-distance exploration types of mycelium.

【 授权许可】

Unknown