EFFECTS OF SULFUR-DIOXIDE ON SUGAR AND FREE AMINO-ACID CONTENT OF PINE-SEEDLINGS

被引：82
作者：
MALHOTRA, SS
SARKAR, SK
机构：
[1] Northern Forest Research Centre, Canadian Forestry Service, Fisheries and Environment Canada, Edmonton, Alberta, T6H 3S5
来源：
PHYSIOLOGIA PLANTARUM | 1979年 / 47卷 / 04期
关键词：
D O I：
10.1111/j.1399-3054.1979.tb06517.x
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Treatment of jack pine (Pinus banksiana Lamb.) seedlings with gaseous SO2 resulted in a shift between the reducing and non‐reducing sugars. Increasing concentrations of gaseous SO2 caused an increase in reducing sugars and a decline in the non‐reducing sugars, suggesting a conversion from the latter to the former at high SO2 concentrations. The total amino acid content of the intact tissues also increased with increasing concentrations of gaseous SO2. Gas‐liquid chromatographic analyses of the amino acids indicated that SO2 (1. 34 mg · m‐3 for 96 h) resulted in an increase in the content of alanine, valine, glycine, isoleucine, leucine, threonine, aspartic acid tyrosine, lysine, and arginine, and a decrease in the content of serine and glutamic acid. The enzymatic and other implications of such changes are discussed. Copyright © 1979, Wiley Blackwell. All rights reserved
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页码：223 / 228
页数：6
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