نتایج جستجو برای: شاخص fad2

تعداد نتایج: 74636  

Journal: :The Journal of biological chemistry 2002
John A Broadwater Edward Whittle John Shanklin

Exchanging the identity of amino acids at four key locations within the Arabidopsis thaliana oleate desaturase (FAD2) and the Lesquerella fendleri hydroxylase/desaturase (LFAH) was shown to influence partitioning between desaturation and hydroxylation (Broun, P., Shanklin, J., Whittle, E., and Somerville, C. (1998) Science 282, 1315-1317). We report that four analogous substitutions in the FAD2...

Journal: :International journal of nature and life sciences 2022

Environmental pollution negatively affects the life activities of living things environment and causes structural damages on all inanimate things. The extent damage caused by human-made to nature is increasing day day. Heavy metal one most important environmental pollution. Cadmium, which pollutants, a highly toxic not used things, even in trace amounts. Cadmium also very heavy for plants. As w...

فاکتور رونویسی LEC2 یکی از فاکتورهای رونویسی است که با اتصال به توالی پیشبرهای بذری سبب بیان ژن­های پایین دستی می­شود. استفاده از این فاکتور رونویسی در کنار روش آگرواینفیلتریشن می­تواند زمان ارزیابی پیشبرهای بذری را با توجه به حذف زمان طولانی مدت انتقال دائم تا بذردهی کاهش دهد. در این تحقیق اختصاصی بودن بیان بذری ژن تحت کنترل پیشبر FAD2-1 پس از جداسازی از گیاه گلرنگ با استفاده از آنالیز بیان ژن...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2011
Paul Hoffer Sergey Ivashuta Olga Pontes Alexa Vitins Craig Pikaard Andrew Mroczka Nicholas Wagner Toni Voelker

In plants, small interfering RNAs (siRNAs) with sequence homology to transcribed regions of genes can guide the sequence-specific degradation of corresponding mRNAs, leading to posttranscriptional gene silencing (PTGS). The current consensus is that siRNA-mediated PTGS occurs primarily in the cytoplasm where target mRNAs are localized and translated into proteins. However, expression of an inve...

Journal: :Plant physiology 2001
X Qiu D W Reed H Hong S L MacKenzie P S Covello

Two homologous cDNAs, CoFad2 and CoFac2, were isolated from a Calendula officinalis developing seed by a polymerase chain reaction-based cloning strategy. Both sequences share similarity to FAD2 desaturases and FAD2-related enzymes. In C. officinalis plants CoFad2 was expressed in all tissues tested, whereas CoFac2 expression was specific to developing seeds. Expression of CoFad2 cDNA in yeast ...

Journal: :Molecular plant breeding 2022

Fatty acid elongase 1 (FAE1) and delta-12 fatty desaturase 2 (FAD2) are two key enzymes in plant biosynthesis pathway. Five different types of transgenic lines with identical genetic background were developed by single double-expression regulation the genes coding for these same  Brassica napus  variety CY2. Seeds five wild-type control, which planted under same environmental conditio...

Journal: :Applied and environmental microbiology 2007
Sonia Rodríguez-Vargas Alicia Sánchez-García Jose Manuel Martínez-Rivas Jose Antonio Prieto Francisca Randez-Gil

Unsaturated fatty acids play an essential role in the biophysical characteristics of cell membranes and determine the proper function of membrane-attached proteins. Thus, the ability of cells to alter the degree of unsaturation in their membranes is an important factor in cellular acclimatization to environmental conditions. Many eukaryotic organisms can synthesize dienoic fatty acids, but Sacc...

Journal: :Plant physiology 1996
P S Covello D W Reed

The functional expression in yeast of the Arabidopsis thaliana FAD2 gene, encoding the extraplastidial oleate desaturase (1-acyl-2-oleoyl-sn-glycero-3-phosphocholine delta 12-desaturase) is reported. Dienoic fatty acids constituted up to 11% (w/w) of the total fatty acids in transformed Saccharomyces cerevisiae cells and were confirmed to be linoleic acid and delta 9, delta 12-hexadecadienoic a...

Journal: :Plant physiology 1996
H Zhuang T R Hamilton-Kemp R A Andersen D F Hildebrand

C6-aldehydes are synthesized via lipoxygenase/hydroperoxide lyase action on polyunsaturated fatty acid (PUFA) substrates in plant leaves. The source pools and subcellular location of the processes are unknown. A close relationship is found between the composition of PUFA and the composition of C6-aldehydes. In the current study, this relationship was tested using the Arabidopsis PUFA mutant lin...

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