protostele


Значение термина protostele в knolik


protostele - protostele
protostele - Most simple, primitive type of stele, consisting of central core of xylem surrounded by cylinder of phloem. Includes haplastele, simplest form with xylem in form of a rod; actinostele, with xylem ribbed, appearing star-shaped in transverse section; and plectostele, with xylem in form of several longitudinal parallel strips embedded in phloem. Present in stems of certain ferns, club mosses; almost universally in roots.

Рядом со словом protostele в knolik


protopterusВ начало
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prototroph

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