The multifaceted role of auxin in root growth and branching: Insights from non‐seed vascular plants DOI
Ward Poelmans, Tom Beeckman, Abdellah Lakehal

и другие.

Physiologia Plantarum, Год журнала: 2025, Номер 177(2)

Опубликована: Март 1, 2025

Plant root systems play a crucial role in taking up water and nutrients, as well facilitating symbiotic partnerships with microorganisms like rhizobia mycorrhizae that enhance nutrient fixation assimilation. Extensive research seed plants has demonstrated the dominant of phytohormone auxin during development this group vascular plants. Non-seed (lycophytes, horsetails ferns) occupy key phylogenetic position sister to plants, making them essential for understanding evolution roots. These lineages exhibit distinct branching patterns, which hormone might pivotal role. However, molecular basis underlying its function these plant groups remains poorly understood. In review, we summarize current progress our auxin-mediated initiation, patterning, non-seed while highlighting outstanding questions. Despite limited research, available evidence suggests both conserved lineage-specific auxin-dependent genetic circuits regulate species. While remaining relatively lycophytes ferns, have evolved extensive environmentally sensitive regulatory networks adaptation their strategies perceived external cues. likely emerged through duplication neofunctionalization gene families involved transport signalling, downstream factors, such LBD PLT genes.

Язык: Английский

The role of indole‐3‐acetic acid and characterization of PIN transporters in complex streptophyte alga Chara braunii DOI Creative Commons
Katarina Kurtović, Stanislav Vosolsobě, Daniel Nedvěd

и другие.

New Phytologist, Год журнала: 2025, Номер unknown

Опубликована: Март 6, 2025

Auxin, indole-3-acetic acid (IAA), is a key phytohormone with diverse morphogenic roles in land plants, but its function and transport mechanisms algae remain poorly understood. We therefore aimed to explore the role of IAA complex, streptophyte Chara braunii. Here, we described novel responses C. braunii characterized two homologs PIN auxin efflux carriers: CbPINa CbPINc. determined their localization using epitope-specific antibodies tested heterologous plant models. Further, phosphoproteomic analysis, identified IAA-induced phosphorylation events. The thallus regeneration assay showed that promotes elongation side branch development. Immunolocalization CbPINc confirmed presence on plasma membrane vegetative generative cells However, functional assays tobacco BY-2 demonstrated affects transport, whereas does not. effective acceleration cytoplasmic streaming evolutionary conserved targets such as homolog RAF-like kinase. These findings suggest that, although canonical PIN-mediated might not be fully Chara, involved morphogenesis fast signaling processes.

Язык: Английский

Процитировано

1
A conserved ARF–DNA interface underlies auxin-triggered transcriptional response DOI Creative Commons
Juriaan Rienstra, Vanessa Polet Carrillo‐Carrasco, Martijn de Roij

и другие.

Proceedings of the National Academy of Sciences, Год журнала: 2025, Номер 122(14)

Опубликована: Апрель 1, 2025

Auxin Response Factor (ARF) plant transcription factors are the key effectors in auxin signaling. Their DNA-Binding Domain (DBD) contains a B3 domain that allows base-specific interactions with Elements (AuxREs) DNA target sites. Land plants encode three phylogenetically distinct ARF classes: closely related A- and B-classes have overlapping binding properties, contrasting different DNA-binding properties of divergent C-class ARFs. divergence likely occurred early evolution gene family, but molecular determinants underlying it remain unclear. Here, we show residues deeply conserved ARFs, variability within these is only present tracheophytes, correlating greatly expanded families. Using liverwort Marchantia polymorpha , confirm essential role DNA-contacting for function. We further B3–AuxRE interfaces not mutation-tolerant, suggesting low evolvability has led to conservation B3–DNA interface between classes. Our data support almost complete interchangeability A/B-class by performing interspecies swaps M. even lineages diverged over half billion years ago. analysis suggests specificity during common streptophyte ancestor, followed strong selection A B-class ARFs as part competition-based response system.

Язык: Английский

Процитировано

1
Auxin and tryptophan trigger common responses in the streptophyte alga Penium margaritaceum DOI Creative Commons
Vanessa Polet Carrillo‐Carrasco, Martijn van Galen, Jochem Bronkhorst

и другие.

Current Biology, Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0
ARF degradation defines a deeply conserved step in auxin response DOI Creative Commons
Martijn de Roij, Jorge Hernández‐García, Shubhajit Das

и другие.

Nature Plants, Год журнала: 2025, Номер unknown

Опубликована: Апрель 11, 2025

Язык: Английский

Процитировано

0
Comparative mutant analyses reveal a novel mechanism of ARF regulation in land plants DOI Creative Commons
Michael J. Prigge, Nicholas Morffy,

A. Neve

и другие.

Nature Plants, Год журнала: 2025, Номер unknown

Опубликована: Апрель 11, 2025

Язык: Английский

Процитировано

0
The multifaceted role of auxin in root growth and branching: Insights from non‐seed vascular plants DOI
Ward Poelmans, Tom Beeckman, Abdellah Lakehal

и другие.

Physiologia Plantarum, Год журнала: 2025, Номер 177(2)

Опубликована: Март 1, 2025

Plant root systems play a crucial role in taking up water and nutrients, as well facilitating symbiotic partnerships with microorganisms like rhizobia mycorrhizae that enhance nutrient fixation assimilation. Extensive research seed plants has demonstrated the dominant of phytohormone auxin during development this group vascular plants. Non-seed (lycophytes, horsetails ferns) occupy key phylogenetic position sister to plants, making them essential for understanding evolution roots. These lineages exhibit distinct branching patterns, which hormone might pivotal role. However, molecular basis underlying its function these plant groups remains poorly understood. In review, we summarize current progress our auxin-mediated initiation, patterning, non-seed while highlighting outstanding questions. Despite limited research, available evidence suggests both conserved lineage-specific auxin-dependent genetic circuits regulate species. While remaining relatively lycophytes ferns, have evolved extensive environmentally sensitive regulatory networks adaptation their strategies perceived external cues. likely emerged through duplication neofunctionalization gene families involved transport signalling, downstream factors, such LBD PLT genes.

Язык: Английский

Процитировано

0