Brassinosteroid signaling directs formative cell divisions and protophloem differentiation in Arabidopsis root meristems DOI Creative Commons
Yeon Hee Kang, Alice S. Breda, Christian S. Hardtke

et al.

Development, Journal Year: 2017, Volume and Issue: 144(2), P. 272 - 280

Published: Jan. 15, 2017

ABSTRACT Brassinosteroids (BRs) trigger an intracellular signaling cascade through its receptors BR INSENSITIVE 1 (BRI1), BRI1-LIKE (BRL1) and BRL3. Recent studies suggest that BR-independent inputs related to vascular differentiation, for instance root protophloem development, modulate downstream components. Here, we report sieve element differentiation is indeed impaired in bri1 brl1 brl3 mutants, although this effect might not be mediated by canonical We also found their small meristem size entirely explained reduced cell elongation, which is, however, accompanied supernumerary formative divisions the radial dimension. Thus, expansion conjunction with growth retardation, because of need accommodate divisions, can account overall short phenotype mutants. Tissue-specific re-addition BRI1 activity partially rescued subsets these defects partly cell-autonomous, non-cell-autonomous effects. However, protophloem-specific expression essentially all major phenotypes. Our data perception sufficient systemically convey action context.

Language: Английский

Brassinosteroids: Multidimensional Regulators of Plant Growth, Development, and Stress Responses DOI Creative Commons
Trevor M. Nolan, Nemanja Vukašinović, Derui Liu

et al.

The Plant Cell, Journal Year: 2019, Volume and Issue: 32(2), P. 295 - 318

Published: Nov. 27, 2019

Brassinosteroids (BRs) are a group of polyhydroxylated plant steroid hormones that crucial for many aspects plant's life. BRs were originally characterized their function in cell elongation, but it is becoming clear they play major roles growth, development, and responses to several stresses such as extreme temperatures drought. A BR signaling pathway from surface receptors central transcription factors has been well characterized. Here, we summarize recent progress toward understanding the pathway, including perception molecular mechanisms signaling. Next, discuss development stress responses. Finally, show how knowledge being applied manipulate growth crops. These studies highlight complex regulation signaling, multiple points crosstalk between other or responses, finely tuned spatiotemporal

Language: Английский

Citations

796
Spatiotemporal Brassinosteroid Signaling and Antagonism with Auxin Pattern Stem Cell Dynamics in Arabidopsis Roots DOI Creative Commons
Juthamas Chaiwanon, Zhiyong Wang

Current Biology, Journal Year: 2015, Volume and Issue: 25(8), P. 1031 - 1042

Published: April 1, 2015

Language: Английский

Citations

269
Plant vascular development: from early specification to differentiation DOI
Bert De Rybel, Ari Pekka Mähönen, Ykä Helariutta

et al.

Nature Reviews Molecular Cell Biology, Journal Year: 2015, Volume and Issue: 17(1), P. 30 - 40

Published: Nov. 18, 2015

Language: Английский

Citations

240
POLAR-guided signalling complex assembly and localization drive asymmetric cell division DOI
Anaxi Houbaert, Cheng Zhang, Manish Tiwari

et al.

Nature, Journal Year: 2018, Volume and Issue: 563(7732), P. 574 - 578

Published: Nov. 1, 2018

Language: Английский

Citations

178
The Dynamics of Cambial Stem Cell Activity DOI
Urs Karl Fischer, Melis Kücükoglu, Ykä Helariutta

et al.

Annual Review of Plant Biology, Journal Year: 2019, Volume and Issue: 70(1), P. 293 - 319

Published: March 1, 2019

Stem cell populations in meristematic tissues at distinct locations the plant body provide potency of continuous growth. Primary meristems, apices body, contribute mainly to elongation main axes, whereas secondary meristems lateral positions are responsible for thickening these axes. The stem cells vascular cambium—a meristem—produce phloem (bast) and xylem (wood). sites primary growth spatially separated, mobile signals expected coordinate rates between apical populations. Although underlying mechanisms have not yet been uncovered, it seems likely that hormones, peptides, mechanical cues orchestrate In this review, we highlight current knowledge recent discoveries how cambial activity is regulated, with a focus on response environmental stress factors.

Language: Английский

Citations

157
Mapping the signaling network of BIN2 kinase using TurboID-mediated biotin labeling and phosphoproteomics DOI Creative Commons
Tae‐Wuk Kim, Chan Ho Park, Chuan‐Chih Hsu

et al.

The Plant Cell, Journal Year: 2023, Volume and Issue: 35(3), P. 975 - 993

Published: Jan. 20, 2023

Elucidating enzyme-substrate relationships in posttranslational modification (PTM) networks is crucial for understanding signal transduction pathways but technically difficult because interactions tend to be transient. Here, we demonstrate that TurboID-based proximity labeling (TbPL) effectively and specifically captures the substrates of kinases phosphatases. TbPL-mass spectrometry (TbPL-MS) identified over 400 proximal proteins Arabidopsis thaliana BRASSINOSTEROID-INSENSITIVE2 (BIN2), a member GLYCOGEN SYNTHASE KINASE 3 (GSK3) family integrates signaling controlling diverse developmental acclimation processes. A large portion BIN2-proximal showed BIN2-dependent phosphorylation vivo or vitro, suggesting these are BIN2 substrates. Protein-protein interaction network analysis include interactors substrates, revealing high level among proteins. Our proteomic establishes uncovers functions regulating key cellular processes such as transcription, RNA processing, translation initiation, vesicle trafficking, cytoskeleton organization. We further discovered significant overlap between GSK3 phosphorylome O-GlcNAcylome, an evolutionarily ancient relationship nutrient-sensing O-glycosylation pathway. work presents powerful method mapping PTM networks, dataset kinase important insights into controls underlying plant growth acclimation.

Language: Английский

Citations

57
Transcription factor PagMYB31 positively regulates cambium activity and negatively regulates xylem development in poplar DOI Creative Commons
Yanhui Zhang, Song Chen, Ling‐Hua Xu

et al.

The Plant Cell, Journal Year: 2024, Volume and Issue: 36(5), P. 1806 - 1828

Published: Feb. 10, 2024

Abstract Wood formation involves consecutive developmental steps, including cell division of vascular cambium, xylem expansion, secondary wall (SCW) deposition, and programmed death. In this study, we identified PagMYB31 as a coordinator regulating these processes in Populus alba × glandulosa built PagMYB31-mediated transcriptional regulatory network. mutation caused fewer layers cambial cells, larger fusiform initials, ray vessels, fiber enhanced SCW thickening, showing that positively regulates proliferation negatively expansion biosynthesis. repressed thickening through directly inhibiting wall-modifying enzyme genes the transcription factor activate whole biosynthetic program, respectively. could promote activity TRACHEARY ELEMENT DIFFERENTIATION INHIBITORY FACTOR (TDIF)/PHLOEM INTERCALATED WITH XYLEM (PXY) signaling by CLAVATA3/ESR-RELATED (CLE) genes, it also WUSCHEL HOMEOBOX RELATED4 (PagWOX4), forming feedforward regulation. We observed either MYB31-MYB72-WOX4 module or inhibit MYB31-MYB72-VASCULAR CAMBIUM-RELATED MADS2 (VCM2)/PIN-FORMED5 (PIN5) modules, suggesting its role maintaining homeostasis cambium. be potential target to manipulate different stages wood formation.

Language: Английский

Citations

30
A bHLH Complex Activates Vascular Cell Division via Cytokinin Action in Root Apical Meristem DOI Creative Commons
Kyoko Ohashi‐Ito,

Maria Saegusa,

Kuninori Iwamoto

et al.

Current Biology, Journal Year: 2014, Volume and Issue: 24(17), P. 2053 - 2058

Published: Aug. 14, 2014

Language: Английский

Citations

183
Functional Insights of Plant GSK3-like Kinases: Multi-Taskers in Diverse Cellular Signal Transduction Pathways DOI Creative Commons
Ji‐Hyun Youn, Tae‐Wuk Kim

Molecular Plant, Journal Year: 2015, Volume and Issue: 8(4), P. 552 - 565

Published: Jan. 5, 2015

Language: Английский

Citations

155
Multiple Classes of Transcription Factors Regulate the Expression of VASCULAR-RELATED NAC-DOMAIN7, a Master Switch of Xylem Vessel Differentiation DOI
Hitoshi Endo, Masatoshi Yamaguchi,

Taizo Tamura

et al.

Plant and Cell Physiology, Journal Year: 2014, Volume and Issue: 56(2), P. 242 - 254

Published: Sept. 29, 2014

The secondary cell walls of xylem cells, including vessel elements, provide mechanical strength and contribute to the conduction water minerals. VASCULAR-RELATED NAC-DOMAIN7 (VND7) is a NAC-domain transcription factor that regulates expression genes required for element formation. Transient assays using 68 factors are expressed during differentiation showed 14 factors, VND1-VND7, putative positive regulators VND7 expression. Electrophoretic mobility shift revealed all seven VND proteins bound promoter region at its SMBE/TERE motif, indicating direct target factors. Overexpression VND1-VND5, GATA12 ANAC075, newly identified function upstream VND7, resulted in ectopic These data suggest regulatory multiple classes

Language: Английский

Citations

151