Histochemical detection of sugar residues in the chick embryo mesonephros with lectin-horseradish peroxidase conjugates

1990 ◽  
Vol 95 (1) ◽  
pp. 63-71 ◽  
Author(s):  
G. Gheri ◽  
S. Gheri Bryk ◽  
V. Petrelli
Keyword(s):  
Chick Embryo ◽  
Horseradish Peroxidase ◽  
Histochemical Detection

Histochemical detection of sugar residues in chick embryo developing lingual glands with horseradish-peroxidase conjugated lectins

1992 ◽  
Vol 92 (2) ◽  
pp. 127-137 ◽  
Author(s):  
Silvia Gheri Bryk ◽  
Gherardo Gheri ◽  
Eleonora Sgambati ◽  
Giovanni E. Orlandini
Keyword(s):  
Chick Embryo ◽  
Horseradish Peroxidase ◽  
Histochemical Detection

Motor innervation of proximally rotated chick embryo wings

Development ◽  
1984 ◽  
Vol 83 (1) ◽  
pp. 213-223
Author(s):  
N. G. Laing
Keyword(s):  
Spinal Cord ◽  
Electrical Stimulation ◽  
Chick Embryo ◽  
Horseradish Peroxidase ◽  
Brachial Plexus ◽  
Limb Bud ◽  
Motor Innervation ◽  
Lateral Edge ◽  
Limb Innervation

Chick embryo wing buds were rotated close to the lateral edge of the somites at stage 19, prior to limb innervation. Despite the abnormal orientation of the resulting limb, the motor pools to biceps and triceps were largely normal, as judged by electrical stimulation and horseradish peroxidase labelling just prior to hatching. The only abnormalities were a few caudal motoneurons innervating biceps and a few rostral motoneurons innervating triceps. This distribution is similar to that seen normally in young embryos before the completion of motoneuron death and it is suggested that the rotation may be keeping alive motoneurons which otherwise would die. The morphology of the brachial plexus supplying rotated wings was abnormal. It is concluded that axons growing into the limb bud from the spinal cord can compensate for reversal of both the limb axes and selectively innervate appropriate muscles. The result is consistent with others in which proximal reversal of one limb axis alone produced normal innervation.

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