Related Experiment Video
Updated: Sep 7, 2025

Genetic Engineering of Dictyostelium discoideum Cells Based on Selection and Growth on Bacteria
Published on: January 25, 2019
The clonal growth in Aconitum carmichaelii Debx
1School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.
Abstract:
Aconitum carmichaelii Debx. is used as traditional herbal medicine in China, Japan, and other Asian countries. A. carmichaelii has two modes for reproduction: sexual reproduction with seed and vegetative reproduction with vegetative propagules. The vegetative propagules are belowground and invisible. To date, only a handful of studies for the clonal growth are available. In this study, we investigated the clonal growth by anatomical and morphological changes. Results revealed that the axillary bud appeared on the rhizome. Furthermore, the axillary meristem in the axillary bud differentiated a bud upwards and an adventitious root (AR) downwards. The AR expanded to a tuberous root in order to provide the bud nutrients for the new plant. The AR branched LRs. In addition, some lateral roots (LRs) on the AR also swelled. Both the AR and LR were found to follow a similar pattern of development. However, high lignification in the stele region of LRs inhibited further expansion. AR development was attributed to activities of the cambium and meristem cell, starch accumulation, stele lignification, and a polyarch stele. Our study not only provides a better understanding of clonal growth but also provides clues to explore the regulatory mechanisms underlying AR development in A. carmichaelii.
Related Concept Videos
Primary and Secondary Growth in Roots and Shoots
Asexual Reproduction
Cells Coordinate Growth and Proliferation
Meristems and Plant Growth
Abnormal Proliferation
T Cell Activation and Clonal Selection
Naive T cells that have not yet encountered an antigen express two primary CD...

