FAMA Is an Essential Component for the Differentiation of Two Distinct Cell Types, Myrosin Cells and Guard Cells, in Arabidopsis[W]

@article{Shirakawa2014FAMAIA,
  title={FAMA Is an Essential Component for the Differentiation of Two Distinct Cell Types, Myrosin Cells and Guard Cells, in Arabidopsis[W]},
  author={Makoto Shirakawa and Haruko Ueda and Atsushi J. Nagano and Tomoo Shimada and Takayuki Kohchi and Ikuko Hara-Nishimura},
  journal={Plant Cell},
  year={2014},
  volume={26},
  pages={4039 - 4052}
}
This work shows that the guard cell master regulator FAMA has a role in idioblast myrosin cell differentiation in Arabidopsis. Brassicales plants evolved a common regulatory pathway for specification of two distinct types of leaf cells: epidermal guard cells for gas exchange and myrosin cells in leaf inner tissue for defense. Brassicales plants, including Arabidopsis thaliana, have an ingenious two-compartment defense system, which sequesters myrosinase from the substrate glucosinolate and… Expand
FAMA: A Molecular Link between Stomata and Myrosin Cells.
TLDR
How FAMA operates two distinct genetic programs: the generation of myrosin cells in inner plant tissue and GCs in the epidermis is discussed. Expand
Myrosin Cell Development Is Regulated by Endocytosis Machinery and PIN1 Polarity in Leaf Primordia of Arabidopsis thaliana[W]
TLDR
It is proposed that Brassicales plants might arrange myrosin cells near vascular cells in order to protect the flux of nutrients and water via polar PIN1 localization, suggesting that endocytosis rather than vacuolar trafficking pathway is important forMyrosin cell development. Expand
Specialized Vacuoles of Myrosin Cells: Chemical Defense Strategy in Brassicales Plants.
TLDR
It is hypothesize that the myrosinase-glucosinolate system may have originated in stomata of ancestral Brassicales plants and, after that, plants co-opted this defense strategy into idioblasts near veins at inner tissue layers. Expand
The chemical compound bubblin induces stomatal mispatterning in Arabidopsis by disrupting the intrinsic polarity of stomatal lineage cells
TLDR
In Arabidopsis, a pyridine-thiazole derivative, bubblin, disrupts polarity in stomatal stem cells, resulting in ectopic retention of the key transcription factor SPEECHLESS andStomatal mispatterning. Expand
PYK10 myrosinase reveals a functional coordination between endoplasmic reticulum bodies and glucosinolates in Arabidopsis thaliana
TLDR
In vitro and in planta evidence is provided for a functional link between ER bodies and glucosinolate metabolism, and an insight into the diversity and evolutionary processes of glucos inolate/myrosinase systems in Brassicales is provided. Expand
Myrosin cells are differentiated directly from ground meristem cells and are developmentally independent of the vasculature in Arabidopsis leaves
TLDR
Results indicate that myosin cells develop independently of the vasculature and are differentiated from vascular precursor cells. Expand
Jasmonate regulates the FAMA/mediator complex subunit 8-THIOGLUCOSIDE GLUCOHYDROLASE 1 cascade and myrosinase activity.
  • Qingkai Feng, Liping Li, Yan Liu, X. Shao, Xiaohui Li
  • Medicine, Chemistry
  • Plant physiology
  • 2021
TLDR
Evidence is provided that JA acts as an important signal upstream of the FAMA/MED8-TGG1 pathway to positively regulate myrosinase activity in Arabidopsis, providing evidence that the effects of jasmonic acid on myrosine activity remain unclear. Expand
The Arabidopsis thaliana Mediator subunit MED8 regulates plant immunity to Botrytis Cinerea through interacting with the basic helix-loop-helix (bHLH) transcription factor FAMA
TLDR
It is demonstrated that MED8 regulated plant immunity to B. cinerea through interacting with another bHLH transcription factor, FAMA, which was previously shown to control the final proliferation/differentiation switch during stomatal development. Expand
Morphological and Physiological Framework Underlying Plant Longevity in Arabidopsis thaliana
TLDR
The results indicate that the stem cell population gradually decreases in IM during plant aging and eventually is fully terminated, and that reactive oxygen species (ROS) are involved in the control of plant longevity. Expand
Plant Vacuoles.
TLDR
The chemical defense against herbivores brought about by the presence of PSVs in the idioblast myrosin cell is described and two types of vacuolar membrane dynamics that occur during defense responses: vacu polar membrane collapse to attack viral pathogens and fusion of vacUolar and plasma membranes to attack bacterial pathogens are summarized. Expand
...
1
2
3
4
...

References

SHOWING 1-10 OF 62 REFERENCES
Arabidopsis FAMA Controls the Final Proliferation/Differentiation Switch during Stomatal Development[W][OA]
TLDR
Physical and genetic interaction studies combined with functional characterization of FAMA domains suggest that stomatal development relies on regulatory complexes distinct from those used to specify other plant epidermal cells. Expand
Differentiation of Arabidopsis Guard Cells: Analysis of the Networks Incorporating the Basic Helix-Loop-Helix Transcription Factor, FAMA1[C][W][OA]
TLDR
This work profiles transcriptional changes in response to inducible expression of Arabidopsis (Arabidopsis thaliana) FAMA, a basic helix-loop-helix protein whose actions during the final stage in stomatal development regulate both cell division and cell fate. Expand
Molecular Profiling of Stomatal Meristemoids Reveals New Component of Asymmetric Cell Division and Commonalities among Stem Cell Populations in Arabidopsis[C][W][OA]
TLDR
The transcriptome profile of the meristemoid, a transient and low-density proliferating stomatal precursor cell with stem cell–like properties, is presented, and a new protein exhibiting polar localization during asymmetric division of Stomatal cell lineages is identified. Expand
Cell Specific, Cross-Species Expression of Myrosinases in Brassica Napus, Arabidopsis Thaliana and Nicotiana Tabacum
TLDR
Results indicate that myrosinase gene promoters from Brassicaceae direct cell, organ and developmental specific expression in B. thaliana and N. tabacum plants. Expand
Transcription factor control of asymmetric cell divisions that establish the stomatal lineage
TLDR
It is demonstrated that SPCH and two paralogues are successively required for the initiation, proliferation and terminal differentiation of cells in the stomatal lineage in Arabidopsis thaliana, highlighting a conserved use of closely related bHLHs for cell fate specification and differentiation. Expand
Termination of asymmetric cell division and differentiation of stomata
TLDR
It is reported that the Arabidopsis thaliana basic helix–loop–helix (bHLH) protein MUTE is a key switch for meristemoid fate transition, and it is shown that SPCH directs the first asymmetric division that initiates stomatal lineage. Expand
Sequence and function of basic helix–loop–helix proteins required for stomatal development in Arabidopsis are deeply conserved in land plants
TLDR
Genome sequence data are consistent with a mechanism whereby a multifunctional transcription factor underwent duplication followed by specialization to provide the three (now nonoverlapping) functions of the angiosperm stomatal bHLHs. Expand
Different myrosinase and idioblast distribution in Arabidopsis and Brassica napus.
TLDR
Findings indicate that in the two species studied, initial cells creating the ground tissue have different potential for making idioblasts and suggest that the myrosinase-glucosinolate system has at least partly different functions. Expand
Guard Cell- and Phloem Idioblast-Specific Expression of Thioglucoside Glucohydrolase 1 (Myrosinase) in Arabidopsis1
TLDR
The results suggest a cellular separation of myrosinase enzyme and glucosinolate substrate, and that myrosInase is contained in distinct cells, and the potential advantages of locating defense and communication systems to only a few specific cell types are discussed. Expand
SCREAM/ICE1 and SCREAM2 Specify Three Cell-State Transitional Steps Leading to Arabidopsis Stomatal Differentiation[W][OA]
TLDR
This work identifies two paralogous proteins, SCREAM (SCRM) and SCRM2, which directly interact with and specify the sequential actions of SPCH, MUTE, and FAMA and suggests a model strikingly similar to cell-type differentiation in animals. Expand
...
1
2
3
4
5
...