کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2016197 | 1541943 | 2014 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The involvement of expansins in responses to phosphorus availability in wheat, and its potentials in improving phosphorus efficiency of plants
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کلمات کلیدی
ExpansinIAADTTRSAethylenediaminetetra acetate - اتیل سدیم استاتEDTA - اتیلن دی آمین تترا استیک اسید Transgenic tobacco - تنباکوی ترانس ژنPhosphorus availability - در دسترس بودن فسفرdithiothreitol - دیتیوتریتولlateral root - ریشه جانبیnet photosynthesis - فتوسنتز خالصPhosphate - فسفاتinorganic phosphate - فسفات معدنیroot system architecture - معماری سیستم ریشهtranspiration rate - نرخ تنفسwild type - نوع وحشیStomatal conductance - هدایت گرمایشیfresh weight - وزن ترdry weight - وزن خشکPotassium - پتاسیمWheat - گندم
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The involvement of expansins in responses to phosphorus availability in wheat, and its potentials in improving phosphorus efficiency of plants The involvement of expansins in responses to phosphorus availability in wheat, and its potentials in improving phosphorus efficiency of plants](/preview/png/2016197.png)
چکیده انگلیسی
Phosphorus (P) is a critical macronutrient required for numerous functions in plants and is one of the limiting factors for plant growth. Phosphate availability has a strong effect on root system architecture. Expansins are encoded by a superfamily of genes that are organized into four families, and growing evidence has demonstrated that expansins are involved in almost all aspects of plant development, especially root development. In the current study, we demonstrate that expansins may be involved in increasing phosphorus availability by regulating the growth and development of plant roots. Multiple expansins (five α- and nine β-expansin genes) were up- or down-regulated in response to phosphorus and showed different expression patterns in wheat. Meanwhile, the expression level of TaEXPB23 was up-regulated at excess-P condition, suggesting the involvement of TaEXPB23 in phosphorus adaptability. Overexpression of the TaEXPB23 resulted in improved phenotypes, particularly improved root system architecture, as indicated by the increased number of lateral roots in transgenic tobacco plants under excess-P and low-P conditions. Thus, these transgenic plants maintained better photosynthetic gas exchange ability than the control under both P-sufficient and P-deficient conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Plant Physiology and Biochemistry - Volume 78, May 2014, Pages 53-62
Journal: Plant Physiology and Biochemistry - Volume 78, May 2014, Pages 53-62
نویسندگان
Yang-yang Han, Shan Zhou, Yan-hui Chen, Xiangzhu Kong, Ying Xu, Wei Wang,