Ectomycorrhizal fungal communities in the boundary between secondary broad-leaved forests and Japanese cypress plantations. Issue 6 (1st November 2020)

• Record Type: Journal Article
• Authors: Ishikawa, Akira; Uehara, Iwao; Tanaka, Megumi
• Is Part Of: Journal of forest research. Volume 25:Issue 6(2020)
• Page Start: 397
• Page End: 404
• Publication Date: 2020-11-01
• Subjects: Edge effect -- cypress plantation -- seedling recruitment -- Quercus myrsinifolia -- Quercus glauca; Forests and forestry -- Periodicals; Forests and forestry -- Japan -- Periodicals; 634.905
• DOI: 10.1080/13416979.2020.1816614
• Languages: English
• ISSNs: 1341-6979

Abstract

ABSTRACT: Belowground ectomycorrhizal (ECM) fungal communities are affected by the dominant tree species of aboveground vegetation. We investigated ECM-fungal communities in the boundary between secondary broad-leaved forests dominated by ECM trees and cypress plantations consisting of arbuscular trees. ECM root tips were collected from soil cores and seedlings at a small scale within 20 m of the boundary. We used molecular analysis of internal transcribed spacer regions of rDNA to identify ECM-fungal species. Of the 104 molecular taxonomic units detected from soil cores and seedlings, the estimated ECM-fungal species richness in broad-leaved forests was higher than that in the cypress plantations. More than half of the ECM-fungal species detected in cypress plantations were shared with adjacent broad-leaved forests. In particular, Russulaceae and Thelephoraceae were dominant in broad-leaved forests and cypress plantations. However, low-frequency occurrence taxa in broad-leaved forests were mostly absent in cypress plantations, at a distance of more than 10 m from the boundary. ECM-fungal species associated with seedlings tended to differ between broad-leaved forests and cypress plantations. Furthermore, Cenococcum geophilum shared soil cores and seedlings in both stands. These results indicated that ECM-fungal communities in cypress plantations were affected by adjacent broad-leaved forests, and this effect likely involved distance from the boundary.