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Ectomycorrhizal colonization and growth of the hybrid larch F-1 under elevated CO2 and O-3

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Title: Ectomycorrhizal colonization and growth of the hybrid larch F-1 under elevated CO2 and O-3
Authors: Wang, Xiaona Browse this author
Qu, Laiye Browse this author
Mao, Qiaozhi Browse this author
Watanabe, Makoto Browse this author →KAKEN DB
Hoshika, Yasutomo Browse this author →KAKEN DB
Koyama, Akihiro Browse this author
Kawaguchi, Korin Browse this author
Tamai, Yutaka Browse this author
Koike, Takayoshi Browse this author →KAKEN DB
Keywords: Ectomycorrhiza
Elevated ozone
Elevated CO2
Hybrid larch F-1
Species richness
Issue Date: Feb-2015
Publisher: ELSEVIER
Journal Title: Environmental Pollution
Volume: 197
Start Page: 116
End Page: 126
Publisher DOI: 10.1016/j.envpol.2014.11.031
PMID: 25521414
Abstract: We studied the colonization of ectomycorrhizal fungi and species abundance of a hybrid larch (F-1) under elevated CO2 and O-3. Two-year-old seedlings were planted in an Open-Top-Chamber system with treatments: Control (O-3 < 6 nmol/mol), O-3 (60 nmol/mol), CO2 (600 mu mol/mol), and CO2 + O-3. After two growing seasons, ectomycorrhiza (ECM) colonization and root biomass increased under elevated CO2. Additionally, O-3 impaired ECM colonization and species richness, and reduced stem biomass. However, there was no clear inhibition of photosynthetic capacity by O-3. Concentrations of Al, Fe, Mo, and P in needles were reduced by O-3, while K and Mg in the roots increased. This might explain the distinct change in ECM colonization rate and diversity. No effects of combined fumigation were observed in any parameters except the P concentration in needles. The tolerance of F-1 to O-3 might potentially be related to a shift in ECM community structure. (C) 2014 Elsevier Ltd. All rights reserved.
Type: article (author version)
URI: http://hdl.handle.net/2115/58552
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 小池 孝良

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