AN IMPROVED PROCEDURE FOR ASSAYING HATCHING ACTIVITY OF POTATO ROOT DIFFUSATES TOWARDS GLOBODERA-ROSTOCHIENSIS

被引:27
作者
TWOMEY, U [1 ]
RAFTERY, T [1 ]
DEVINE, K [1 ]
JONES, P [1 ]
机构
[1] NATL UNIV IRELAND UNIV COLL CORK,NATL FOOD BIOTECHNOL CTR,CORK,IRELAND
来源
NEMATOLOGICA | 1995年 / 41卷 / 02期
关键词
HATCHING FACTOR PURIFICATION; POTATO CYST NEMATODES;
D O I
10.1163/003925995X00224
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
A bioassay for cyst nematode hatching activity is described which is applicable to purification research on hatching factors. Using an easily-constructed incubation unit, based on a 96-well microtitre plate, cysts were suspended, via ''thimbles'' of wire mesh, in test samples. The use of size-graded cyst samples reduced inter-replicate variability with respect to total egg content and hatching rate. The optimised bioassay procedure used 340 mu l test volumes and replicate sizes of five cysts, and the cumulative number of juveniles hatching per cyst after 5 days was closely positively correlated with final hatch (after 31 days). This procedure significantly reduces the labour, time and space requirements of hatching bioassay.
引用
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页码:258 / 268
页数:11
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