The Cell Differentiation of Idioblast Myrosin Cells: Similarities With Vascular and Guard Cells

Idioblasts are defined by abnormal shapes, sizes, and contents that are different from neighboring cells. Myrosin cells are Brassicales-specific idioblasts and accumulate a large amount of thioglucoside glucohydrolases (TGGs, also known as myrosinases) in their vacuoles. Myrosinases convert their su...

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Bibliographic Details
Published inFrontiers in plant science Vol. 12; p. 829541
Main Authors Shirakawa, Makoto, Tanida, Mai, Ito, Toshiro
Format Journal Article
LanguageEnglish
Published Switzerland Frontiers Media S.A 10.01.2022
Subjects
cell differentiation
FAMA
glucosinolate
guard cell
myrosin cell
myrosinase
Plant Science
cell differentiation
glucosinolate
myrosin cell
myrosinase
guard cell
vascular cell
FAMA
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Summary:Idioblasts are defined by abnormal shapes, sizes, and contents that are different from neighboring cells. Myrosin cells are Brassicales-specific idioblasts and accumulate a large amount of thioglucoside glucohydrolases (TGGs, also known as myrosinases) in their vacuoles. Myrosinases convert their substrates, glucosinolates, into toxic compounds when herbivories and pests attack plants. In this review, we highlight the similarities and differences between myrosin cells and vascular cells/guard cells (GCs) because myrosin cells are distributed along vascular cells, especially the phloem parenchyma, and myrosin cells share the master transcription factor FAMA with GCs for their cell differentiation. In addition, we analyzed the overlap of cell type-specific genes between myrosin cells and GCs by using published single-cell transcriptomics (scRNA-seq) data, suggesting significant similarities in the gene expression patterns of these two specialized cells.
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Edited by: Takumi Higaki, Kumamoto University, Japan
Reviewed by: Yuki Kondo, Kobe University, Japan
This article was submitted to Plant Development and EvoDevo, a section of the journal Frontiers in Plant Science
ISSN:1664-462X
1664-462X
DOI:10.3389/fpls.2021.829541