کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8357676 | 1542051 | 2015 | 25 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
K+ accumulation in the cytoplasm and nucleus of the salt gland cells of Limonium bicolor accompanies increased rates of salt secretion under NaCl treatment using NanoSIMS
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کلمات کلیدی
LSCMNMTNanoSIMSMRPhpfPPFDLimonium bicolorDAPI4′,6-diamidino-2-phenylindole - 4 '، 6-دیامیدینو-2-فنیلینولSecondary electron - الکترون ثانویهHigh-pressure freezing - انجماد فشار بالاTem - این استfreeze substitution - جایگزینی را فریز کنdry mass - جرم خشکUltrastructure - زیرساختSIMS - سیمزsecondary ion mass spectrometry - طیف سنجی جرم یونی ثانویه یا طیف نگاری جرم یونی ثانویهSalt gland - غلظت نمکphotosynthetic photon flux density - فتوسنتز تراکم شار فوتونMass resolving power - قدرت توده ای حل و فصلSEM - مدل معادلات ساختاری / میکروسکوپ الکترونی روبشیLaser Scanning Confocal Microscope - میکروسکوپ Confocal اسکن لیزریscanning electron microscope - میکروسکوپ الکترونی اسکنTransmission electron microscope - میکروسکوپ الکترونی انتقال
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: K+ accumulation in the cytoplasm and nucleus of the salt gland cells of Limonium bicolor accompanies increased rates of salt secretion under NaCl treatment using NanoSIMS K+ accumulation in the cytoplasm and nucleus of the salt gland cells of Limonium bicolor accompanies increased rates of salt secretion under NaCl treatment using NanoSIMS](/preview/png/8357676.png)
چکیده انگلیسی
Recretohalophytes with specialized salt-secreting structures (salt glands) can secrete excess salts from plant, while discriminating between Na+ and K+. K+/Na+ ratio plays an important role in plant salt tolerance, but the distribution and role of K+ in the salt gland cells is poorly understood. In this article, the in situ subcellular localization of K and Na in the salt gland of the recretohalophyte Limonium bicolor Kuntze is described. Samples were prepared by high-pressure freezing (HPF), freeze substitution (FS) and analyzed using NanoSIMS. The salt gland of L. bicolor consists of sixteen cells. Higher signal strength of Na+ was located in the apoplast of salt gland cells. Compared with control, 200Â mM NaCl treatment led to higher signal strength of K+ and Na+ in both cytoplasm and nucleus of salt gland cells although K+/Na+ ratio in both cytoplasm and nucleus were slightly reduced by NaCl. Moreover, the rate of Na+ secretion per salt gland of L. bicolor treated with 200Â mM NaCl was five times that of controls. These results suggest that K+ accumulation both in the cytoplasm and nucleus of salt gland cells under salinity may play an important role in salt secretion, although the exact mechanism is unknown.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Plant Science - Volume 238, September 2015, Pages 286-296
Journal: Plant Science - Volume 238, September 2015, Pages 286-296
نویسندگان
Zhong-Tao Feng, Yun-Quan Deng, Shi-Chao Zhang, Xue Liang, Fang Yuan, Jia-Long Hao, Jian-Chao Zhang, Shu-Feng Sun, Bao-Shan Wang,