... enzymes exhibited significantly delayed fibre production without affecting the xylem:phloem ratio, and that these effects can be reversed by the application of ABA. The altered morphology is also reflected at the transcript level, with a reduced expression of marker genes that are associated with fibre...

... is into medial versus lateral compartments, which correspond to neither epaxial/hypaxial nor primaxial/abaxial subdivisions. In the medial compartment, Myf5 and/or Myod drive adaxial slow fibre and medial fast fibre differentiation. Myod-driven Myogenin activity alone is sufficient for lateral fast somitic...

... and it was not uncommon to witness a slower fibre being passed by a faster one. The average rate of all measured fibres was about 52 μ m h −1 ( Fig. 2 ). Fig. 2. Axon speed in the optic tract and tectum. The speed of 20 normal axons was measured in the optic tract with a total observation time of over 50 h...