Modern Phytomorphology

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Anatomical features of lateral root formation in Butomus umbellatus L.


I. V. Zhupanov

The study of lateral root formation in adventitious roots in Butomus umbellatus showed that lateral root primordia (LRP) form from perÑ–cycle cells. The LRP initiation took place in the apical meristem. The first morphological event related to the LRP initiation is the enlargement of initial pericycle cells. The LRP growth has a biphasic pattern. At the first phase an active cell divisions and formation of future tissues of LR are observed. At the second phase the LRP growth considerably slows. Mature LRPs reach the parental root surface at the distance of 6-8 cm from its apex.



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