Effects of phytohormones on the surfaces of plant-parasitic nematodes

被引：23

作者：

Akhkha, A

Kusel, J

Kennedy, M

Curtis, R

机构：

[1] Univ Glasgow, Div Biochem & Mol Biol, Glasgow G12 8QQ, Lanark, Scotland

[2] Univ Glasgow, Div Environm & Evolut Bio, Glasgow G12 8QQ, Lanark, Scotland

[3] IACR Rothamsted, Harpenden AL5 2JQ, Herts, England

来源：

PARASITOLOGY | 2002年 / 125卷

关键词：

nematodes; Meloidogyne incognita; Globodera rostochiensis; auxins; cytokinins; fluorescent lipid probes;

D O I：

10.1017/S0031182002001956

中图分类号：

R38 [医学寄生虫学]; Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ; 100103 ;

摘要：

The direct effects of phytohormones (auxin and kinetin) and root diffusates on the surface lipophilicity of the plant parasitic nematodes Globodera rostochiensis and Meloidogyne incognita were investigated. The fluorescent lipid probe AF18 (5-N-octodecanoyl) aminofluorescein) was used to detect surface changes. Root diffusates increased AF18 uptake by G. rostochiensis while it had no effect on M. incognita. Kinetin and auxin decreased AF18 uptake in G. rostochiensis, while they had the opposite effect on M. incognita. Auxin/kinetin ratio was also found to be important in triggering the surface changes, especially at high concentrations. Whether plant nematodes have auxin and/or kinetin binding proteins is discussed as well as the mechanism behind the surface lipophilicity changes due to root diffusates and phytohormones.

引用

页码：165 / 175

页数：11

共 29 条

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