کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1936033 1050681 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Transcriptome analysis of acclimatory responses to thermal stress in Antarctic algae
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
Transcriptome analysis of acclimatory responses to thermal stress in Antarctic algae
چکیده انگلیسی

A customized cDNA chip analysis provided the relative expression profiling of 1439 ESTs of Chaetoceros neogracile in culture environments maintained between 4 and 10 °C. Among the 1439 probes, 21.5% were differentially regulated (⩾2-fold) by the temperature upshift within three days. Up-regulation was more prominent among cytoprotective genes, whereas down-regulation was featured in photosynthetic genes. A third of the differentially expressed genes had an unknown function or no similarity to known genes, highlighting their potential importance as a resource to identify key players in the acclimation response of polar algae under thermal stress. Our transcriptome analysis also revealed novel aspects of temperature-responsive, coordinated changes in the abundance of specific mRNAs, along with the rapid establishment of molecular homeostasis in polar algae. Unexpectedly, a small set of genes encoding fucoxanthin chlorophyll a/c-binding proteins were rapidly up-regulated by thermal stress, implying that they have different roles other than light harvesting.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 367, Issue 3, 14 March 2008, Pages 635–641
نویسندگان
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