外源水杨酸处理对黄瓜幼苗根系糖代谢的调节作用

采用黄瓜水培试验,并结合根际施用水杨酸（SA）,分析了外源SA对黄瓜幼苗根系糖代谢的调节作用。结果表明,适宜浓度的SA处理促进黄瓜幼苗的生长,以0.1 mmol/L SA处理效果最好;SA处理后,根系内葡萄糖、果糖和水苏糖的含量随着处理时间的增长而增加,蔗糖含量则随着处理时间的增长而降低,棉籽糖含量变化不大,0.05 mmol/L SA处理与对照差异达到极显著水平;蔗糖、棉籽糖和水苏糖含量都低于对照,其中水苏糖含量与对照差异达到显著性水平（P〈0.05）,蔗糖含量与对照差异达到极显著水平（P〈0.01）,根系中葡萄糖和果糖含量的变化都以0.05 mmol/L SA处理效果最明显;其它糖含量与对...

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Published in西南农业学报 Vol. 29; no. 6; pp. 1387 - 1391
Main Author 王晓黎 王宏 沈学善 黄涛 黄钢
Format Journal Article
LanguageChinese
Published 四川省农业科学院植物保护研究所,四川成都,610066%四川省农业科学院,四川成都,610066 2016
Subjects
叶片
水杨酸
糖代谢
黄瓜幼苗
Salicylic acid
Roots
水杨酸
Cucumis sativus seedlings
Carbohydrate metabolism
糖代谢
叶片
黄瓜幼苗
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Summary:采用黄瓜水培试验,并结合根际施用水杨酸（SA）,分析了外源SA对黄瓜幼苗根系糖代谢的调节作用。结果表明,适宜浓度的SA处理促进黄瓜幼苗的生长,以0.1 mmol/L SA处理效果最好;SA处理后,根系内葡萄糖、果糖和水苏糖的含量随着处理时间的增长而增加,蔗糖含量则随着处理时间的增长而降低,棉籽糖含量变化不大,0.05 mmol/L SA处理与对照差异达到极显著水平;蔗糖、棉籽糖和水苏糖含量都低于对照,其中水苏糖含量与对照差异达到显著性水平（P〈0.05）,蔗糖含量与对照差异达到极显著水平（P〈0.01）,根系中葡萄糖和果糖含量的变化都以0.05 mmol/L SA处理效果最明显;其它糖含量与对照没达到显著性差异水平。不同浓度SA处理后,淀粉含量急剧上升,其中0.05 mmol/L SA处理第6d淀粉含量达到峰值,为84.46 mg·g-1,与对照差异均达到极显著水平（P〈0.01）,而0.5 mmol/L SA处理与对照差异不显著。推测外源SA处理后根系内蔗糖代谢相关酶活性和大小间接影响根系内糖的积累。
Bibliography:51-1213/S
WANG Xiao-li,WANG Hong,SHEN Xue-shan,HUANG Tao,LI Hong-hao,HUANG Gang （ 1. Plant Protection Institute, Sichuan Academy of Agricultural Sciences, Sichuan Chengdu 610066, China; 2. Sichuan Academy of Agricultural Sciences, Siehuan Chengdu 610066, China）
Cucumis sativus seedlings; Salicylic acid; Carbohydrate metabolism; Roots
A hydroponics experiment was conducted and different concentration rhizosphere application of salicylic acid（ SA） were combined to investigate the effect of exogenous SA on Carbohydrate metabolism in cucumber（ Cucumis sativus L.） seedlings roots. Results showed that appropriate concentration of SA treatment promoted the growth of cucumber seedlings roots,in 0. 1 mmol / L for SA treatment effect was best;SA treatment,the glucose,fructose and stachyose content of roots increased with treatment time and increase,sucrose content was increased with treatment time and reduce,raffinose content changed little,0. 05 mmol / L SA processing and control difference reached significant level; Suc
ISSN:1001-4829
DOI:10.16213/j.cnki.scjas.2016.06.027