Volume 17, Issue 65 (fall 2013)
jwss 2013, 17(65): 199-209 |
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Daneshbakhsh B, Khoshgoftarmanesh A H, Shariatmadari H. Effect of Zinc Nutrition in Solution Culture on Phytosiderophore Release by Roots of Three Different Zinc-Efficient Wheat Genotypes. jwss 2013; 17 (65) :199-209
URL: http://jstnar.iut.ac.ir/article-1-1464-en.html
URL: http://jstnar.iut.ac.ir/article-1-1464-en.html
, daneshbakhsh@yahoo.com
Abstract: (14278 Views)
This research was carried out in a hydroponic culture to investigate the effect of Zn nutrition on phytosiderophore release by roots of three bread wheat genotypes (Triticum aestivum L. cvs. Rushan, Kavir, and Cross) differing in Zn-efficiency. The wheat seeds were germinated in sterile sand and two weeks later the plants were transferred to nutrient solution containing different Zn levels. Phytosiderophore released by plant roots was collected ten days after applying Zn treatments and measured using resin-Cu-mobilization test. A month after their transfer to nutrient solution, the plants were harvested and Fe and Zn concentrations in root and shoot were measured, and total amounts (uptake) of these nutrients were determined. Zinc addition increased concentration and total amount of Fe and Zn in shoot in Rushan genotype, while it had no significant effect on concentration and total amount of Zn in shoot and root of Kavir and Spring Back-Cross-Rushan genotypes. Addition of Zn to the nutrient solution decreased concentration and total amount of Fe in shoot of all wheat genotypes. On the other hand, Zn nutrition increased root Zn concentration in Rushan and Kavir genotypes, while it resulted in significant decrease of root Zn concentration in Back-Cross-Rushan genotype. Effect of Zn nutrition on the amount of phytosiderophore release by roots of wheat genotypes was different. Zinc nutrition resulted in an increase of phytosiderophore release by roots of Rushan, while it had no significant effect on phytosiderophore release in other wheat genotypes.
Type of Study: Research |
Subject:
Ggeneral
Received: 2011/04/11 | Accepted: 2013/01/22 | Published: 2013/12/4
Received: 2011/04/11 | Accepted: 2013/01/22 | Published: 2013/12/4
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