publication . Article . 2013

Elymus dahuricus H+-PPase EdVP1 enhances potassium uptake and utilization of wheat through the development of root system

Ruan, L; Zhang, J; Xin, X; Miller, A. J; Tong, Y;
Open Access English
  • Published: 27 Aug 2013
  • Publisher: Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
Abstract
We investigated the differences of K acquisition and utilization, morphological and physiological characteristics of roots and grain yield between Elymus dahuricus H+-PPase (EdVP1) transgenic wheat and wild type wheat under low K stress. The results showed that, the grain yield and K economic utilization index (KUI-E) in wild type wheat were only 61.14% and 50.20% of those in EdVP1 transgenic wheat. EdVP1 increased the free IAA accumulations in roots, which may play a key role in the development of root system. The total root length, total root surface area, root tips and total root volume in transgenic wheat were 2.26, 2.23, 2.34 and 2.00 times as high as those...
Subjects
Medical Subject Headings: food and beverages
free text keywords: Wheat, EdVP1 gene, K efficiency, root system, Agronomy and Crop Science, Plant Science, Soil Science, Agronomy, Genetically modified crops, Wild type, Exudate, medicine.symptom, medicine, Biology, Organic acid, chemistry.chemical_classification, chemistry, Cation-exchange capacity, Crop yield, Plant physiology, Botany
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