The effects of co-colonising ectomycorrhizal fungi on mycorrhizal colonisation and sporocarp formation in Laccaria japonica colonising seedlings of Pinus densiflora

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Zhang , S , Vaario , L-M , Xia , Y , Matsushita , N , Geng , Q , Tsuruta , M , Kurokochi , H & Lian , C 2019 , ' The effects of co-colonising ectomycorrhizal fungi on mycorrhizal colonisation and sporocarp formation in Laccaria japonica colonising seedlings of Pinus densiflora ' , Mycorrhiza , vol. 29 , no. 3 , pp. 207-218 . https://doi.org/10.1007/s00572-019-00890-6

Title: The effects of co-colonising ectomycorrhizal fungi on mycorrhizal colonisation and sporocarp formation in Laccaria japonica colonising seedlings of Pinus densiflora
Author: Zhang, Shijie; Vaario, Lu-Min; Xia, Yan; Matsushita, Norihisa; Geng, Qifang; Tsuruta, Momi; Kurokochi, Hiroyuki; Lian, Chunlan
Contributor: University of Helsinki, Department of Forest Sciences
Date: 2019-05
Language: eng
Number of pages: 12
Belongs to series: Mycorrhiza
ISSN: 0940-6360
URI: http://hdl.handle.net/10138/325607
Abstract: Forest trees are colonised by different species of ectomycorrhizal (ECM) fungi that interact competitively or mutualistically with one another. Most ECM fungi can produce sporocarps. To date, the effects of co-colonising fungal species on sporocarp formation in ECM fungi remain unknown. In this study, we examined host plant growth, mycorrhizal colonisation, and sporocarp formation when roots of Pinus densiflora are colonised by Laccaria japonica and three other ECM fungal species (Cenococcum geophilum, Pisolithus sp., and Suillus luteus). Sporocarp numbers were recorded throughout the experimental period. The biomass, photosynthetic rate, and mycorrhizal colonisation rate of the seedlings were also measured at 45days, 62days, and 1year after seedlings were transplanted. Results indicated that C. geophilum and S. luteus may negatively impact mycorrhizal colonisation and sporocarp formation in L. japonica. Sporocarp formation in L. japonica was positively correlated with conspecific mycorrhizal colonisation but negatively correlated with the biomass of seedlings of P. densiflora. The co-occurring ECM fungi largely competed with L. japonica, resulting in various effects on mycorrhizal colonisation and sporocarp formation in L. japonica. A variety of mechanisms may be involved in the competitive interactions among the different ECM fungal species, including abilities to more rapidly colonise root tips, acquire soil nutrients, or produce antibiotics. These mechanisms need to be confirmed in further studies.
Subject: Sporocarps formation
Co-colonisation
Ectomycorrhizal fungi
Laccaria japonica
Pinus densiflora
EUCALYPTUS-GLOBULUS LABILL
EXTRARADICAL SOIL MYCELIUM
COMPETITIVE INTERACTIONS
LACTARIUS-DELICIOSUS
TRICHOLOMA-MATSUTAKE
SPECIES INTERACTIONS
DOUGLAS-FIR
GROWTH
FOREST
BICOLOR
4112 Forestry
1183 Plant biology, microbiology, virology
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