The clonal growth in Aconitum carmichaelii Debx

IF 3.6 4区生物学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Plant Signaling & Behavior Pub Date : 2022-06-17 DOI:10.1080/15592324.2022.2083818

Jing Gao, Ran Liu, Min Luo, Guangzhi Wang

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引用次数: 1

Abstract

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.

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乌头无性系生长研究

摘要:乌头。在中国、日本和其他亚洲国家被用作传统草药。卡米夏草有两种繁殖方式:有性繁殖与种子繁殖和营养繁殖与营养繁殖。营养繁殖体在地下，不可见。迄今为止，对克隆生长的研究屈指可数。在本研究中，我们通过解剖和形态的变化来研究克隆的生长。结果表明，根茎上出现腋芽。腋芽的腋生分生组织向上分化为芽，向下分化为不定根。为了给新植物提供芽营养，AR扩展成块茎根。AR分支LRs。此外，部分侧根也出现肿胀。研究发现，AR和LR都遵循类似的发展模式。然而，LRs柱状区域的高度木质化抑制了LRs的进一步扩张。AR的发育归因于形成层和分生组织细胞的活动、淀粉积累、石柱木质化和多拱石柱。本研究不仅为进一步了解a . carmichaelii克隆生长过程提供了线索，也为探究a . carmichaelii AR发育的调控机制提供了线索。

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来源期刊

Plant Signaling & Behavior Agricultural and Biological Sciences-Plant Science

CiteScore

6.00

自引率

3.40%

发文量

111

期刊介绍： Plant Signaling & Behavior, a multidisciplinary peer-reviewed journal published monthly online, publishes original research articles and reviews covering the latest aspects of signal perception and transduction, integrative plant physiology, and information acquisition and processing.