The first xylem to develop, characterized by narrow tracheary elements with annular, spiral or reticular thickenings.


In young plants, the protoxylem in stems has very little secondary wall material as it is mostly involved in stretching or stem elongation.

Compare: metaxylem

Please contribute to this project, if you have more information about this term feel free to edit this page

This page was last modified on 16 March 2009, at 10:03. This page has been accessed 4,659 times. 
What links here | Related changes | Permanent link