کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1936477 | 1050692 | 2007 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Desaturase genes in a psychrotolerant Nostoc sp. are constitutively expressed at low temperature
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Desaturase genes in a psychrotolerant Nostoc sp. are constitutively expressed at low temperature Desaturase genes in a psychrotolerant Nostoc sp. are constitutively expressed at low temperature](/preview/png/1936477.png)
چکیده انگلیسی
Antarctic psychrotolerant, Nostoc sp. (SO-36), when grown at 25 °C and then shifted to 10 °C, showed an increase in the tri-unsaturated fatty acid [C18:3(9,12,15)] at the expense of mono- [C18:1(9)] and di-unsaturated [C18:2(9,12)] fatty acids. These results indicate that the activities of the enzymes DesA and DesB are up-regulated, when cultures were grown at 10 °C or shifted to 10 °C from 25 °C. However, RT-PCR studies indicated a constitutive expression of desA, desB, desC, and desC2 genes when cultures grown at 25 °C were shifted to 10 °C. This constitutive expression of des genes is in contrast to that observed in mesophilic cyanobacteria, in which desA and desB are transcriptionally up-regulated in response to lowering of growth temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 362, Issue 1, 12 October 2007, Pages 81-87
Journal: Biochemical and Biophysical Research Communications - Volume 362, Issue 1, 12 October 2007, Pages 81-87
نویسندگان
Suresh Chintalapati, J.S.S. Prakash, Ashish K. Singh, Shuji Ohtani, Iwane Suzuki, Norio Murata, Sisinthy Shivaji,