大豆科学2017，Vol.36Issue(2)：256-261,6.DOI:10.11861/j.issn.1000-9841.2017.02.0256
铝胁迫下大豆根系有机酸积累的特性
Effects of Aluminum (Al) on Organic Acid Accumulation in Soybean Roots
摘要
Abstract
The objective of this study was to evaluate the effects of aluminum (Al) on the response of organic acids accumulation in soybean roots.One soybean genotype YC03-3 was treated with or without Al.The relative root growth rate and Al accumulation in different root segments were investigated.Furthermore,the concentration of three types of organic acid including malate,citrate and oxalate were measured.Results showed that the soybean root growth was significantly inhibited by Al treatment.The Al content decreased in the 0-2 cm root segment,while increased in the 2-4 cm root segment with the Al treatment period increased.Furthermore,the organic acid concentrations in different root segments were divergently affected by Al treatment.Short period of Al treatment (6 h) didn't affect the citrate and oxalate concentration in soybean roots,but significantly increased the malate concentration in roots.After 12 hours of Al treatment,the concentration of three organic acids in 0-2 cm root segments were not significantly altered.However,the malate concentration and the oxalate concentration in the 2-4 cm root segments were significantly higher than that in control.Therefore,malate and oxalate accumulation might affect internal Al tolerance of soybean roots.关键词
铝/大豆/苹果酸/柠檬酸/草酸Key words
Aluminum/Soybean/Malate/Citrate/Oxalate分类
农业科技引用本文复制引用
田聪,张烁,粟畅,郭安静,白振龙,梁翠月..铝胁迫下大豆根系有机酸积累的特性[J].大豆科学,2017,36(2):256-261,6.基金项目
广东省自然科学基金杰出青年基金(2015A030306034) （2015A030306034）
国家自然科学基金(31301835). （31301835）
