2008年12月
Seasonal changes in nitrate use by three woody species: the importance of the leaf-expansion period
TREES-STRUCTURE AND FUNCTION
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- ,
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- 巻
- 22
- 号
- 6
- 開始ページ
- 851
- 終了ページ
- 859
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1007/s00468-008-0246-3
- 出版者・発行元
- SPRINGER
Seasonal changes in plant NO3 -N use were investigated by measuring leaf nitrate reductase activity (NRA), leaf N concentration, and leaf expansion in one evergreen woody species (Quercus glauca Thunb.) and two deciduous woody species [Acer palmatum Thunb. and Zelkova serrata (Thunb.) Makino]. Leaf N concentration was highest at the beginning of leaf expansion and decreased during the expansion process to a steady state at the point of full leaf expansion in all species. The leaf NRA of all species was very low at the beginning of leaf expansion, followed by a rapid increase and subsequent decrease. The highest leaf NRA was observed in the middle of the leaf-expansion period, and the lowest leaf NRA occurred in summer for all species. Significant positive correlations were detected between leaf NRA and leaf expansion rates, while leaf N concentrations were negatively correlated with leaf area. In the evergreen Q. glauca, the N concentration in current buds increased before leaves opened; concurrently, the N concentration in 1-year-old leaves decreased by 25%. Our results show that the leaf-expansion period is the most important period for NO3 -N assimilation by broadleaf tree species, and that decreases in leaf N concentration through the leaf-expansion period are at least partly compensated for by newly assimilated NO3 -N in current leaves.
- リンク情報
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- DOI
- https://doi.org/10.1007/s00468-008-0246-3
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000260840700012&DestApp=WOS_CPL
- URL
- http://www.scopus.com/inward/record.url?eid=2-s2.0-55949092252&partnerID=MN8TOARS
- URL
- http://orcid.org/0000-0002-9201-8376
- ID情報
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- DOI : 10.1007/s00468-008-0246-3
- ISSN : 0931-1890
- ORCIDのPut Code : 35565807
- SCOPUS ID : 55949092252
- Web of Science ID : WOS:000260840700012