کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4382333 | 1617811 | 2013 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Leaf litter is the main driver for changes in bacterial community structures in the rhizosphere of ash and beech
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Leaf litter is the main driver for changes in bacterial community structures in the rhizosphere of ash and beech Leaf litter is the main driver for changes in bacterial community structures in the rhizosphere of ash and beech](/preview/png/4382333.png)
چکیده انگلیسی
Cluster analysis of DGGE-derived patterns revealed a clustering of 2008 sampled litter treatments in two separated clusters. The corresponding treatments sampled in 2009 showed separation in one cluster. PCA analysis based on the relative abundance of active proteobacterial classes and other phyla in beech and ash single-tree species mesocosm indicated an effect of sampling time and leaf litter on active bacterial community composition. The abundance of next-generation sequencing-derived sequences assigned to the Betaproteobacteria was higher in the litter treatments, indicating a higher activity, under these conditions. The Deltaproteobacteria, Nitrospira and Gemmatimonadetes showed an opposite trend and were more active in the mesocosms without litter. The abundance of alphaproteobacterial sequences was higher in mesocosms sampled in 2009 (PÂ =Â 0.014), whereas the Acidobacteria were more active in 2008 (PÂ =Â 0.014). At the family level, we found significant differences of the litter vs. non-litter treated group. Additionally, an impact of beech and ash as tree species on soil bacterial diversity was confirmed by the Shannon and Simpson indices. Our results suggest that leaf litter decomposition in pH-stable soils affect the soil bacterial composition, while tree species influence the soil bacterial diversity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Soil Ecology - Volume 72, October 2013, Pages 150-160
Journal: Applied Soil Ecology - Volume 72, October 2013, Pages 150-160
نویسندگان
Birgit Pfeiffer, Ann-Catrin Fender, Sandra Lasota, Dietrich Hertel, Hermann F. Jungkunst, Rolf Daniel,