کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6288180 | 1300484 | 2011 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Endophytic bacterial diversity in roots of Typha angustifolia L. in the constructed Beijing Cuihu Wetland (China)
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کلمات کلیدی
16S rDNA libraryT-RFLPtetrachloroetheneCFBDGGEPCBsPAOPCECTABOTU - OTcetyltrimethylammonium bromide - اتلی تریمتیل آمونیوم برومیدEndophytic bacteria - باکتری های اندوفیتPolychlorinated biphenyls - بیفنیل پلیکلر DGGE, denaturing gradient gel electrophoresis - روش ژل الکتروفورز گرادیانت دناتورینگPhosphorus - فسفرterminal restriction fragment length polymorphism - قطعه قطعه قطعه قطعه polymorphismLuria-Bertani - لواریا بارتانیNitrogen - نیتروژنOperational taxonomic units - واحدهای تاکسونومی عملیاتیPhytoremediation - گیاه پالایی
موضوعات مرتبط
علوم زیستی و بیوفناوری
ایمنی شناسی و میکروب شناسی
میکروبیولوژی و بیوتکنولوژی کاربردی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We investigated the community structure of endophytic bacteria in narrowleaf cattail (Typha angustifolia L.) roots growing in the Beijing Cuihu Wetland, China, using the 16S rDNA library technique. In total, 184 individual sequences were used to assess the diversity of endophytic bacteria. Phylogenetic analysis revealed that 161 clones (87.5%) were affiliated with Proteobacteria, other clones grouped into Cytophaga/Flexibacter/Bacteroids (3.3%), Fusobacteria (3.8%), and nearly 5% were uncultured bacteria. In Proteobacteria, the beta and gamma subgroups were the most abundant, accounting for approximately 46% and 36.6% of all Proteobacteria, respectively. The dominant genera included Rhodoferax, Pelomonas, Uliginosibacterium, Pseudomonas, Aeromonas, Rhizobium, Sulfurospirillum, Ilyobacter and Bacteroides. While some of these endophytic bacteria are capable of fixing nitrogen and can therefore improve plant growth, other endophytes may play important biological roles by removing nitrogen, phosphorus and/or organic matter from the water body and thus have the potential to enhance the phytoremediation of eutrophic water bodies. These bacteria have the potential to degrade xenobiota such as methane, methanol, methylated amines, catechol, oxochlorate, urea, cyanide, and 2,4-dichlorophenol. Hence, the use of certain endophytic bacteria in the process of phytoremediation could be a powerful approach for the restoration of eutrophic systems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Research in Microbiology - Volume 162, Issue 2, FebruaryâMarch 2011, Pages 124-131
Journal: Research in Microbiology - Volume 162, Issue 2, FebruaryâMarch 2011, Pages 124-131
نویسندگان
Yan Hong Li, Qun Fang Liu, Yin Liu, Jing Nan Zhu, Qiang Zhang,