.... To analyse this defect, we initiated clonal analysis of the pre-streak epiblast in eed mutant embryos, using the lineage tracer horseradish peroxidase (HRP). The results of these studies indicate that epiblast cells ingress through the anterior streak, but the newly formed mesoderm does not migrate...

...Kirstie A. Lawson; Juanito J. Meneses; Roger A. Pedersen ABSTRACT The fate of cells in the epiblast at prestreak and early primitive streak stages has been studied by injecting horseradish peroxidase (HRP) into single cells in situ of 6.7-day mouse embryos and identifying the labelled descendants...

...Steve Wilson; Nigel Holder Horseradish peroxidase (HRP) was employed to analyse the spatial organization of axons within nerves of the axolotl peripheral nervous system. HRP applications to the lateral motor column, spinal nerves and muscle nerve branches were examined after orthograde...

... commissure was transected and the cut isthmotectal fibres filled with horseradish peroxidase (HRP). In serial paraffin sections of the midbrain, the numbers of surviving and dying (pyknoti c ) neurones in the left and right IN were counted. The soma size of viable isthmic neurones and the volume of both...

...Wiel M. Kühtreiber; Florenci Serras; Jo A. M. van den Biggelaar ABSTRACT We have injected horseradish peroxidase (HRP) and fluorescein-isothiocyanate dextran (FD) into cells and into the blastocoelic cavity of Patella vulgata embryos, before and during the interval between 5th and 6th cleavage...

...Jennifer Hiscock; Charles Straznicky ABSTRACT Horseradish peroxidase-wheat germ agglutinin conjugate (HRP) was injected into masticatory and eye muscles of 6-to 15-day-old chick embryos and posthatched chicks to establish the timetable of axonal outgrowth and distribution of central and peripheral...