COLOR CODE            L1 Lethargus  (aka  L1 A2 from a block of five L1s)                                                                                                                    April 1988

 

Codes taken from MRC Neuron Charts                                 September28, 2009; DHH

 

This young larva has been reconstructed in the anterior ventral cord, beginning just behind the RVG.  Every other available thin section was photographed at 10,000X for prints #1-431.  In addition, additional micrographs were taken at 15,000X for prints #160-190. The most synaptically-active ventral cord axons were reconstructed using a red and blue color code.  Some chemical synapses, NMJ’s and a few gap junctions are just visible on the prints.  But perhaps because they were printed in a small format, they are rather difficult to see. 

 

Since we can see no evidence of a 2nd cuticle layer in any available images, it seems likely that this animal has just molted into early L2 stage.  This dataset stems from original unpublished work by John White and colleagues at the MRC.  Color Codes are copied directly from MRC green notebook #3 without further analysis.

 

COLOR CODES FOR VENTRAL CORD

1

2

3          VA2

4          VB3    

5          AS2

6          DB3

7          DA2

8          VD3

9          VA3

10        VB4

11        VC?    

12        DD2

13        AS3

14        VD4

15        VA4

 

A - N  (additional processes) are traced only in higher power prints #160-190

 

1          AVAR

2          AVAL

3          AVBR

4          AVBL            

5         

6         

7         

8