Herbicide-Induced Diamine Accumulation in Pea Roots. The Effect of Napropamide on Polyamine Levels

スポンサーリンク

概要

• 論文の詳細を見る

• Pea (Pisum sativum L. cv. Alaska) root tips were incubated in nutrient medium for 24 h prior to herbicide treatment. Endogenous levels of putrescine, cadaverine, spermidine and spermine were determined in root tip sections at various times following 10 and 20μM napropamide application. Little effect on polyamine levels occurred within 12 h of treatment. However, by 48 h of treatment, putrescine levels increased more than 3-fold in each of the root sections within 4 mm of the tip while cadaverine increased by 2-fold in only the root section 4 to 10 mm from the tip. After 72 h of herbicide treatment, the level of putrescine increased over 8-fold within 5 mm of the root tip. Napropamide had little effect on spermidine and spermine concentration within 10 mm of the root tip after 72 h of exposure. This represents the first report of an herbicide-induced accumulation of putrescine and cadaverine and suggests a possible phytotoxic effect of high concentrations of putrescine on roots.

• 日本植物生理学会の論文

著者

• Ashton Floyd

  Botany Department University Of California

• DiTomaso Joseph

  Department of Agronomy, Cornell University

• Rost Thomas

  Botany Department, University of California

• Rost Thomas

  Botany Department University Of California

• Ditomaso Joseph

  Department Of Agronomy Cornell University

関連論文

• Herbicide-Induced Diamine Accumulation in Pea Roots. The Effect of Napropamide on Polyamine Levels

スポンサーリンク