DEGRADATION OF BENZOIC ACID IN ROOT EXUDATES OF FLUE-CURED TOBACCO BY ASPERGILLUS FLAVUS Z5

被引:0
作者
Li, Xin [1 ]
Li, Qiang [1 ]
机构
[1] Hunan Agr Univ, Changsha 410128, Hunan, Peoples R China
来源
BANGLADESH JOURNAL OF BOTANY | 2017年 / 46卷 / 03期
关键词
Root exudates; Allelochemical; Benzoic acid; Aspergillus flavus; Degradation; PSEUDOMONAS; METABOLISM;
D O I
暂无
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The allelochemical benzoic acid, released from plant roots, is an important inhibitor of plant growth. It was found that Aspergillus flavus Z5 isolated from flue-cured tobacco root reduced the damage of tobacco seedlings caused by root exudates. Results indicated that A. flavus had a positive effect on root morphological characteristics, chlorophyll content, and photosynthetic characteristics. A. flavus grown on Martun medium with benzoic acid as the sole carbon source in a wide range of concentrations. The optimum growth concentration for this strain was 800 mu mol/l, and the highest degradation rate was 2.833 mg/d between 7 and 9 days of fungal culture.
引用
收藏
页码:1099 / 1104
页数:6
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