Quantitative estimation of the contribution of the phloem in cadmium transport to grains in rice plants (Oryza sativa L.)(Plant Nutrition)

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概要

• 論文の詳細を見る

• The contribution of the phloem in translocation of cadmium (Cd) to grains of rice plants (Oryza sativa L. cv. Kantou) was estimated. We measured Cd concentrations in phloem sap collected from the uppermost internode of rice plants at the grain-filling stage. Cadmium concentration was 17.8±4.5μmol L^<-1> in plants treated with a nutrient solution containing 10μmol L^<-1> Cd for 2 days. Subsequently, distribution ratios of ^<109>Cd between the grains and the glumes were determined after feeding of ^<109>Cd to the cut ends of the uppermost internodes or onto the surface of the flag leaves or to the roots. The results suggested that 91-100% of the Cd in the grains was deposited from the phloem. To our knowledge, this is the first determination of Cd concentrations in phloem sap transported to grains, and the first estimation of the contribution of the phloem in Cd transport to rice grains.

• 社団法人日本土壌肥料学会の論文

著者

• HAYASHI Hiroaki

  Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The U

• YONEYAMA Tadakatsu

  Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The U

• Hayashi Hiroaki

  Department Of Biological Production Faculty Of Bioresource Sciences Akita Prefectural University

• FUJIMAKI Shu

  Department of Applied Biological Chemistry, The University of Tokyo

• FUJIWARA Toru

  Department of Applied Biological Chemistry, The University of Tokyo

• Fujiwara T

  Department Of Applied Biological Chemistry Graduate School Of Agricultural And Life Sciences The Uni

• Fujiwara Toru

  Osaka University

• Hayashi H

  Department Of Biological Production Faculty Of Bioresource Sciences Akita Prefectural University

• Hayashi H

  Department Of Applied Biological Chemistry Graduate School Of Agricultural And Life Sciences The Uni

• TANAKA Kensuke

  Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The U

• Fujimaki S

  Japan Atomic Energy Agency Gunma

• Fujimaki Shu

  Department Of Applied Biological Chemistry The University Of Tokyo

• Fujiwara T

  Osaka University

• Fujiwara Toru

  Graduate School Of Engineering Science Osaka University

• Hayashi Hiroaki

  Department Of Applied Biological Chemistry Graduate School Of Agricultural And Life Sciences The Uni

• Yoneyama T

  Univ. Tokyo Tokyo

• Fujiwara Toru

  Department Of Applied Biological Chemistry Graduate School Of Agricultural And Life Sciences The Uni

• Yoneyama Tadakatsu

  Department Of Applied Biological Chemistry Graduate School Of Agricultural And Life Sciences The Uni

• Yoneyama Tadakatsu

  Department Of Agricultural Chemistry University Of Tokyo:(present Address)division Of Environmental

• Yoneyama Tadakatsu

  Department Of Applied Biological Chemistry University Of Tokyo

• Tanaka K

  Niigata University

• YAMAGUCHI Tomoya

  Tohoku Natl. Agri. Exp. St.

• Fujimaki Shu

  Department Of Applied Biological Chemistry Graduate School Of Agricultural And Life Sciences The Uni

• Fujiwara Toru

  Dept. Appl. Biol. Chem. Univ. Tokyo:presto Jst

• Tanaka Kensuke

  Department Of Applied Biological Chemistry Graduate School Of Agricultural And Life Sciences The Uni

• FUJIWARA Toru

  Precursory Research for Embryonic Science and Technology

• Hayashi H

  Department Of Applied Biological Chemistry Graduate School Of Agricultural And Life Sciences The Uni

• Hayashi Hiroaki

  Department Of Applied Biological Chemistry Graduate School Of Agricultural And Life Science The Univ

• Hayashi Hiroaki

  Department Of Agricultural Cheinistry Faculty Of Agriculture University Of Tokyo

• Yoneyama Tadakatsu

  Univ. Tokyo Tokyo

• Hayashi Hiroaki

  Department Of Applied Biological Chemistry The University Of Tokyo

• Yoneyama Tadakatsu

  Department Of Agricultural Chemistry University Of Tokyo

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