期刊
SOIL SCIENCE AND PLANT NUTRITION
卷 46, 期 3, 页码 733-739出版社
JAPANESE SOC SOIL SCIENCE PLANT NUTRITION
DOI: 10.1080/00380768.2000.10409138
关键词
ectomycorrhiza; N-15 natural abundance; nitrogen transport; Pinus densiflora; Suillus granulatus
The N-15 natural abundance in Pinus densiflora Sieb, et Zucc. that had been inoculated and not inoculated with ectomycorrhizal fungi (Suillus granulatus (L.:Fr.) O. Kuntze) was compared. The inoculated pine needles showed a lower delta(15)N value, while the uninoculated ones showed a higher delta(15)N value. Higher delta(15)N values in the mycelial mat of the ectomycorrhizal fungi compared to those of the inoculated pine needles were also observed. These facts indicate that nitrogen isotope fractionation occurred during the nitrogen transport from mycorrhizal fungi to the host plants.
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