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蛇床子素对小麦赤霉病菌葡萄糖、钙吸收和三磷酸腺苷酶活性的抑制
引用本文:沈寿国,石志琦,徐朗莱,范永坚. 蛇床子素对小麦赤霉病菌葡萄糖、钙吸收和三磷酸腺苷酶活性的抑制[J]. 农药学学报, 2005, 7(2): 135-139
作者姓名:沈寿国  石志琦  徐朗莱  范永坚
作者单位:1.江苏省农业科学院 食品安全研究中心,江苏 南京 210014
基金项目:江苏省自然科学基金(BK2002-128),国家高技术研究发展计划(“863”计划)(2002AA244041).
摘    要:蛇床子素可抑制小麦赤霉病菌菌丝生长干重;含有14C标记的葡萄糖培养基中培养小麦赤霉病菌,以100 μg/mL蛇床子素处理,其菌体内14C放射强度比对照降低43%,表明蛇床子素能抑制小麦赤霉病菌对葡萄糖的吸收;以100 μg/mL蛇床子素处理小麦赤霉病菌12 h,菌体内总钙含量仅为对照的60%,表明蛇床子素能抑制菌体对钙的吸收;蛇床子素处理对β-1,6-葡聚糖酶活性没有显著影响;离体条件下,蛇床子素能抑制小麦赤霉病菌三磷酸腺苷(ATP)酶活性。

关 键 词:蛇床子素   小麦赤霉病菌   葡萄糖吸收   钙吸收   三磷酸腺苷酶活性
文章编号:1008-7303(2005)02-0135-05
收稿时间:2004-12-01
修稿时间:2004-12-01

Inhibition of Osthol on the Uptake of Glucose, Calcium and ATPases Activity in Fusarium graminearum
SHEN Shou-guo,SHI Zhi-qi,XU Lang-lai and FAN Yong-jian. Inhibition of Osthol on the Uptake of Glucose, Calcium and ATPases Activity in Fusarium graminearum [J]. Chinese Journal of Pesticide Science, 2005, 7(2): 135-139
Authors:SHEN Shou-guo  SHI Zhi-qi  XU Lang-lai  FAN Yong-jian
Affiliation:1.Food Safety Center, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China2.Department of Biology Science, Nanjing Agricultural University, Nanjing 210095, China
Abstract:Dry biomass of Fusarium graminearum was inhibited by osthol.When F. graminearum bred with 14C-glucose was treated with 100 μg/mL osthol, the radio activity decreased by 43%. When F. graminearum was treated with 100 μg/mL osthol for 12 h, calcium in F. graminearum decreased by 40%. It suggested that osthol inhibited hyphae uptake of calcium as well as glucose. PAGE indicated that osthol also inhibited the activity of ATPase in vitro, but cell wall lysis-related β-1,6-glucanase activity had not varied compared with contol.
Keywords:osthol  F.graminearum  ~(14)C-glucose  the uptake of calcium  ATPase activity
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