کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10840263 | 1067616 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Polyamines modify the components of phospholipids-based signal transduction pathway in Coffea arabica L. cells
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
PLDPtdOHSPDPIP2PLCIP3Inositol trisphosphateSPMPhosphatidylinositol 4-phosphate - Phosphatidylinositol 4-فسفاتSpermine - اسپرمSpermidine - اسپرمیدینphosphatidic acid - اسید فسفاتیدیکdiacylglycerol - دیسیل گلیسیرینDAG - روزphosphatidylcholine - فسفاتیدیل کولینphosphatidylinositol 4,5-bisphosphate - فسفاتیدیلینوزیتول 4،5-بیسفسفاتphospholipase C - فسفولیپاز CPhospholipase D - فسفولیپاز DPhospholipids - فسفولیپیدPUT - قرار دادنputrescine - قرار دادنLipid kinases - لیپید کینازPAS - نهSignal transduction - هدایت سیگنالPolyamines - پلی آمینPiP - پیپCoffea arabica - کافیه عربی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Polyamines modify the components of phospholipids-based signal transduction pathway in Coffea arabica L. cells Polyamines modify the components of phospholipids-based signal transduction pathway in Coffea arabica L. cells](/preview/png/10840263.png)
چکیده انگلیسی
Recent results, fundamentally obtained from animal tissues, suggest that polyamines (Pas), essential compounds for the growth and development of all life organisms, may interact with a signal transduction cascade. Because Pas are highly positive charged compounds, their binding with phospholipids involved in signal transduction is likely to be the case. In this work, the in vivo effect of Pas on some important components of phospholipid signal transduction pathway was studied, by the first time, in plant tissue. Endogenous Pas content varied during the culture cycle of Coffea arabica cells: putrescine (Put) levels increased at the end of the stationary phase, both spermidine (Spd) and spermine (Spm) accumulated at the beginning of the linear growth phase. Cells that were incubated with Put presented a significant increase in phospholipase D (PLD) (EC: 3.1.4.4) activity, phospholipase C (PLC) (EC: 3.1.4.3) activity decreased, and the effect on lipid kinases was less marked. However, the incubation of the cells with Spd and Spm significantly stimulated the lipid kinases activities, fundamentally increased the formation of phosphatidyl inositol 4-phosphate (PIP) and phosphatidylinositol 4,5-bisphosphate (PIP2), while the effect on PLC and PLD activities was minor when compared with the cells treated with Put. The results presented here suggest that Pas may modulate the cellular signal of C. arabica cells by differentially affecting components of the phospholipid cascade.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Plant Physiology and Biochemistry - Volume 43, Issue 9, September 2005, Pages 874-881
Journal: Plant Physiology and Biochemistry - Volume 43, Issue 9, September 2005, Pages 874-881
نویسندگان
Ileana EchevarrÃa-Machado, Ana Ramos-DÃaz, Ligia Brito-Argáez, Graciela Racagni-Di Palma, VÃctor M. Loyola-Vargas, S.M. Teresa Hernández-Sotomayor,