I am wondering why the Gymnosperms have an opposite behaviour that Angiosperms in the Reaction Wood (RW).
Are there some new findings regarding that?
Studies say that causal agents can be the gravity, light, interactions of both stimuli, inherent patterning mechanisms, etc. (Gardiner et al., 2014). But I have not found studies that clearly explain the main factor why in Angiosperms the RW (tension wood) is created in the upper side of a branch, and in Gymnosperms the RW (compression wood) is created in the lower side.
Any feedback or literature would be helpful.
Transcriptome Analysis of Reaction Wood in Gymnosperms by Next-Generation
DOI: 10.4236/ajps.2014.518295
No-one knows why, but it's two different solutions to the same problem :)
THE TENSION WOOD WHICH IS FORMED IN THE CASE OF HARDWOODS FOUND ON THE UPPER SIDE AND COMPRESSION WOOD IS FORMED ON THE LOWER SIDE IN SOFTWOODS. THE OPPOSITE BEHAVIOR IS PRIMARILY DUE TO THE DIFFERENCE IN THE CELL CONSTITUTION IN BOTH OF THE WOODS AS TENSION WOOD COMPRISES OF VESSELS, RAYS, PARENCHYMA AND FIBRES BUT IN THE CASE OF SOFTWOODS MAJORILY TRACHEIDS. Darwin Alexander Pucha Cofrep
Transcriptome Analysis of Reaction Wood in Gymnosperms by Next-Generation
DOI: 10.4236/ajps.2014.518295
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