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

• Wang, Xiaona

• Qu, Laiye

• Mao, Qiaozhi

• Watanabe, Makoto

• Hoshika, Yasutomo

• Koyama, Akihiro

• Kawaguchi, Korin

• Tamai, Yutaka

• Koike, Takayoshi

抄録

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.

収録刊行物

• Environmental Pollution

  Environmental Pollution 197 116-126, 2015-02

  ELSEVIER

キーワード

• Ectomycorrhiza
• Elevated ozone
• Elevated CO2
• Hybrid larch F-1
• Species richness

詳細情報

• CRID: 1050564288971547520
• NII論文ID: 120005602512
• HANDLE: 2115/58552
• ISSN: 02697491
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
  • IRDB
  • CiNii Articles