High nitrogen and elevated [CO2] effects on the growth, defense and photosynthetic performance of two eucalypt species

• Novriyanti, Eka

• Watanabe, Makoto

• Kitao, Mitsutoshi

• Utsugi, Hajime

• Uemura, Akira

• Koike, Takayoshi

抄録

Atmospheric nitrogen deposition and [CO2] are increasing and represent environmental problems. Planting fast-growing species is prospering to moderate these environmental impacts by fixing CO2. Therefore, we examined the responses of growth, photosynthesis, and defense chemical in leaves of Eucalyptus urophylla (U) and the hybrid of E. deglupta x E. camadulensis (H) to different CO2 and nitrogen levels. High nitrogen load significantly increased plant growth, leaf N, photosynthetic rate (A_[growth]), and photosynthetic water use efficiency (WUE). High CO2 significantly increased A_[growth], photosynthetic nitrogen use efficiency (PNUE) and WUE. Secondary metabolite (SM, i.e. total phenolics and condensed tannin) was specifically altered; as SM of U increased by high N load but not by elevated [CO2], and vice versa for SM of H.

収録刊行物

• Environmental Pollution

  Environmental Pollution 170 124-130, 2012-11

  Elsevier

キーワード

• Eucalypts
• Elevated [CO2]
• Nitrogen loading
• Defense chemical
• Resource allocation

詳細情報

• CRID: 1050845763942112640
• NII論文ID: 120004857005
• HANDLE: 2115/50386
• 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