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Plant stem cells and de novo organogenesis
Author(s) -
Sang Ya Lin,
Cheng Zhi Juan,
Zhang Xian Sheng
Publication year - 2018
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/nph.15106
Subject(s) - organogenesis , meristem , biology , regeneration (biology) , microbiology and biotechnology , auxin , stem cell , cytokinin , botany , genetics , shoot , gene
ContentsSummary 1334 I. Introduction 1334 II. Regeneration‐initial cell: the origin of regeneration 1335 III. Acquiring regeneration competency: the essential intermediate step for hormone‐induced regeneration 1335 IV. Hormonal induction of stem cell regulators: the program for de novo establishment of apical meristems 1337 V. Conclusions and perspectives 1337Acknowledgements 1338Author contributions 1338References 1338Summary High cellular plasticity confers remarkable regeneration capacity to plants. Based on the activity of stem cells and their regulators, higher plants are capable of regenerating new individuals. De novo organogenesis exemplifies the regeneration of the whole plant body and is exploited widely in agriculture and biotechnology. In this Tansley insight article, we summarize recent advances that facilitate our understanding of the molecular mechanisms underlying de novo organogenesis. According to our current knowledge, this process can be divided into three steps, including activation of regeneration‐initial cells, acquisition of competency and de novo establishment of apical meristems. The functions of stem cells and their regulators are critical to de novo organogenesis, whereas auxin and cytokinin act as triggers and linkers between different steps.