Stable free radical from plant litter decomposing in water

被引：8

作者：

Pillinger, JM

Cooper, JA

Harding, CJ

机构：

[1] OPEN UNIV,DEPT CHEM,MILTON KEYNES MK7 6AA,BUCKS,ENGLAND

[2] INT MYCOL INST,EGHAM TY20 9TY,SURREY,ENGLAND

来源：

JOURNAL OF CHEMICAL ECOLOGY | 1996年 / 22卷 / 05期

关键词：

electron paramagnetic resonance; electron spin resonance; stable free radical semiquinone radical; aquatic decomposition; soluble lignin; algal control;

D O I：

10.1007/BF02029950

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The presence of a stable radical species in both fresh straw and that which had been submerged in aerated water for up to six months has been demonstrated using electron paramagnetic (spin) resonance (EPR or ESR) spectroscopy. A radical signal was associated also with material shown to contain straw lignin markers, which was leached from the rotting straw into surrounding water. Fresh straw treated with strong alkali to remove phenolics did not show a radical signal. The possible effect of a dissolved stable free radical is discussed in relation to the antagonistic effect of rotting straw on algal and cyanobacterial growth in water to which straw has been added as a nuisance algal control agent.

引用

页码：1001 / 1011

页数：11

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