文献类型： 外文期刊
作者： Qi, Yonghong 1 ; Li, Xinhua 1 ; Ma, Juan 1 ; Li, Minquan 2 ; Chen, Shulong 1 ;
作者机构： 1.Hebei Acad Agr & Forestry Sci, Inst Plant Protect, IPM Ctr Hebei Prov, Baoding 071000, Peoples R China
2.Univ Gansu, Pratacultural Grassland Sci Coll, Lanzhou 730070, Peoples R China
关键词： chemoattraction;chemotaxis;stem nematode;sweet potato
期刊名称：RUSSIAN JOURNAL OF NEMATOLOGY （ 影响因子：0.286； 五年影响因子：0.464 ）
ISSN：
年卷期：
页码：
收录情况： SCI
摘要： The chemotactic responses of Ditylenchus destructor were studied in salt gradients created in an agarose gel. Nineteen combinations of sodium, calcium, potassium, ferric or ammonium cations and chloride, nitrate, sulphate, hydrogen-phosphate, bicarbonate and carbonate anions were tested at six Concentrations from 0.0625x10~(-2) to 2xl0~(-2) mol H. Ditylenchus destructor was attracted to salts that included CI-, and NO_3~-, whereas salts with SO_4~(2-) and H_2P0_4~- anions were repellent, but the salts comprising CO_3~(2-) had almost no effect on the nematode movement. The repellent or attraction properties of different salts having the same cations were not consistent. The chemotaxis of nematodes to Ca(H_2P0_4)_2, KH_2P0_4, NH4H2PO4, K_2C0_3, FeS0_4, Na_2S0_4, K_2S0_4, CaS0_4, and KNO_3 increased with increasing concentration, whilst the concentration of other salts tested did not influence nematode chemotaxis significantly.
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