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Ectomycorrhizal fungal community associated with naturally regenerating Pinus densiflora Sieb. et Zucc. seedlings on exposed granite slopes along woodland paths.

التفاصيل البيبلوغرافية
العنوان: Ectomycorrhizal fungal community associated with naturally regenerating Pinus densiflora Sieb. et Zucc. seedlings on exposed granite slopes along woodland paths.
المؤلفون: Obase, Keisuke, Cha, Joo Young, Lee, Jong Kyu, Lee, Sang Yong, Chun, Kun Woo
المصدر: Journal of Forest Research; Aug2012, Vol. 17 Issue 4, p388-392, 5p, 1 Chart
مصطلحات موضوعية: ECTOMYCORRHIZAL fungi, JAPANESE red pine, SEEDLINGS, FOREST ecology, RECOMBINANT DNA, ATHELIACEAE
مستخلص: We investigated the ectomycorrhizal (EcM) fungal community of naturally regenerating Pinus densiflora seedlings on exposed decomposed granite (DG) slopes along woodland paths in the Republic of Korea. We sampled three- to five-year-old seedlings from slopes where DG was exposed (habitat S) and from the surrounding forest edge or gaps (habitat F). We classified EcMs into morphological groups and counted the number of root tips. The fungal taxa were determined by sequencing the internal transcribed spacer region of their nuclear rDNA. We observed a total of 27 EcM fungal taxa. Atheliaceae and Rhizopogon were the dominant taxa on exposed DG slopes. The fungal species compositions were similar between habitats (0.59 as calculated by the Morishita-Horn index). Fourteen fungal taxa were common to both habitats, and these accounted for more than 90% of the relative abundance in each habitat. There were no significant differences in relative abundance and colonization frequency of each EcM fungal taxon between the habitats, except for Russula sp. 2, which was significantly more frequent in habitat F than in habitat S. Our results indicated that P. densiflora seedlings on exposed DG slopes associated with EcM fungi that were common in forests and not specific to the exposed DG slopes. [ABSTRACT FROM AUTHOR]
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قاعدة البيانات: Complementary Index
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