In this study, Riikka Mäkilä, a doctoral researcher in Mähönen’s group, discovered that plant hormone gibberellic acid (GA) regulates the ratio of how much xylem and phloem the cambium is producing.

Bifacial cambium stem cells generate xylem and phloem during radial plant growth. Development, 2019; 146 (1): dev171355 DOI: 10.1242/dev.171355 ...

It is important that xylem and phloem are not only produced during the embryonic period but throughout the plant life cycle. When the cambium «dies», so does the stem.

The secondary phloem of pecan is segmented by narrow rays into radial sectors of varying width. Irregular bands of fibers alternate with tangential blocks containing sieve tubes, companion cells, and ...

The differentiation of phloem anastomoses linking the longitudinal vascular bundles has been studied in stem internodes of Cucurbita maxima Duchesne, C. pepo L. and Dahlia pinnata Cav. These ...

How trees and turnips grow fatter Researchers unlock the secrets of radial growth Date: January 9, 2019 Source: University of Cambridge Summary: Botanists have identified key regulatory networks ...