کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9439873 | 1300507 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Isolation and characterization of a diazotrophic, oxalate-oxidizing bacterium from sour grass (Oxalis pes-caprae L.)
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
علوم زیستی و بیوفناوری
ایمنی شناسی و میکروب شناسی
میکروبیولوژی و بیوتکنولوژی کاربردی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Isolation and characterization of a diazotrophic, oxalate-oxidizing bacterium from sour grass (Oxalis pes-caprae L.) Isolation and characterization of a diazotrophic, oxalate-oxidizing bacterium from sour grass (Oxalis pes-caprae L.)](/preview/png/9439873.png)
چکیده انگلیسی
A new type of nitrogen-fixing, oxalate-oxidizing Azospirillum sp. was isolated from the roots of Oxalis pes-caprae. Polyphasic taxonomy was performed, including auxanography using API galleries, physiological tests and 16S rRNA sequence comparison. Optimum growth occurred at 30â°C, pH 7.5. Growth was observed at 37 and 42â°C with oxalate and in the presence of 3-4% NaCl and 2% potassium oxalate. In liquid culture, the doubling time (td) with oxalate was 9 h. Its closest phylogenetic neighbors, as deduced by 16S rDNA-based analysis, were Azospirillum brasilense, Azospirillum doebereinerae and Azospirillum lipoferum, with 99.5, 98.4 and 96.7% sequence similarity, respectively. The strain differed from A. brasilense by its ability to use N-acetylglucosamine, d-glucose and d-mannitol. It may be a variant strain of A. brasilense. Oxalotrophic, N2-fixing species of the genus Azospirillum may be important contributors to soil formation, soil fertility, and retention and/or cycling of elements necessary for plant growth.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Research in Microbiology - Volume 156, Issue 3, April 2005, Pages 452-456
Journal: Research in Microbiology - Volume 156, Issue 3, April 2005, Pages 452-456
نویسندگان
Nurettin Sahin,