Role of the plasma membrane H+-ATPase in auxin-induced elongation growth: historical and new aspects

@article{Hager2004RoleOT,
  title={Role of the plasma membrane H+-ATPase in auxin-induced elongation growth: historical and new aspects},
  author={Achim Hager},
  journal={Journal of Plant Research},
  year={2004},
  volume={116},
  pages={483-505}
}
  • A. Hager
  • Published 2004
  • Biology, Medicine
  • Journal of Plant Research
This article will cover historical and recent aspects of reactions and mechanisms involved in the auxin-induced signalling cascade that terminates in the dramatic elongation growth of cells and plant organs. Massive evidence has accumulated that the final target of auxin action is the plasma membrane H+-ATPase, which excretes H+ ions into the cell wall compartment and, in an antiport, takes up K+ ions through an inwardly rectifying K+ channel. The auxin-enhanced H+ pumping lowers the cell wall… Expand
Multiple Roles of the Plasma Membrane H(+)-ATPase and Its Regulation.
TLDR
The phosphorylation status of penultimate threonine in the C-terminus of H(+)-ATPase is revealed to be key step for the activity regulation, and the data is presented that the activity of the H( +)-ATpase limits the plant growth. Expand
Plasma membrane H+-ATPase regulation is required for auxin gradient formation preceding phototropic growth
TLDR
It is shown that during phototropism, H+‐ATPase activity is regulated by the phototropin photoreceptors, providing a mechanism by which light influences apoplastic pH. Expand
Auxin Activates the Plasma Membrane H+-ATPase by Phosphorylation during Hypocotyl Elongation in Arabidopsis1[W][OA]
TLDR
The activation mechanism of H+-ATPase by auxin during early-phase hypocotyl elongation is defined; this is the long-sought-after mechanism that is central to the acid-growth theory. Expand
Ion channels meet auxin action.
TLDR
The molecular mechanisms underlying the modulation of K+ transport by auxin are focused on and a model is presented to explain how the regulation of K- channels is involved in auxin-induced cell elongation growth. Expand
Unusual Roles of Secretory SNARE SYP132 in Plasma Membrane H+-ATPase Traffic and Vegetative Plant Growth1[OPEN]
The secretory SNARE SYP132 affects auxin-regulated traffic of plasma membrane H+-ATPase proteins influencing plant growth and homeostasis. The plasma membrane proton (H+)-ATPases of plants generateExpand
Brassinosteroid Induces Phosphorylation of the Plasma Membrane H+-ATPase during Hypocotyl Elongation in Arabidopsis thaliana.
TLDR
Brassinosteroids induced phosphorylation of the penultimate, threonine residue of PM H+-ATPase penultimate residue is mediated via the BRI1-BIN2 signaling pathway, together with the accumulation of SAURs during hypocotyl elongation. Expand
Alteration of transport activity of proton pumps in coleoptile cells during early development stages of maize seedlings
TLDR
The highest level of vacuolar pyrophosphatase activity was observed during the early development of coleoptile cells under growth intensification through the elongation, which can be an evidence of physiological significance of pumps in the maintenance of cell homeostasis. Expand
Environmental and Genetic Factors Regulating Localization of the Plant Plasma Membrane H+-ATPase1[OPEN]
TLDR
A transgenic Arabidopsis plant expressing H+-ATPase isoform 2 (AHA2) that is translationally fused with a fluorescent protein is generated and its cellular localization by live-cell microscopy is examined, demonstrating that AHA2 localization at the plasma membrane of root cells requires light. Expand
Root plasma membrane H+-ATPase is involved in the adaptation of soybean to phosphorus starvation.
TLDR
IAA might be involved in signal transduction of P starvation by activating the plasma membrane H+-ATPase in soybean roots through its transcriptional and translational regulation. Expand
Activity of Plasma Membrane H+-ATPase in Coleoptile Cells during Development of Maize Seedlings
TLDR
It is supposed that changes in ATPase activity reflect different regulatory roles of this principal ion-transporting enzyme of the plasma membrane at the stage of cell elongation and at a later developmental stage when the coleoptile has completed its physiological function. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 217 REFERENCES
Auxin induces exocytosis and the rapid synthesis of a high-turnover pool of plasma-membrane H+-ATPase
TLDR
It is suggested that auxin activates a cluster of genes responsible for the induction and acceleration of exocytotic processes, including for the synthesis of PM H+-ATPases, increasing the capacity for H-extrusion into the apoplast as a precondition for wall enlargement. Expand
PLANT PLASMA MEMBRANE H+-ATPases: Powerhouses for Nutrient Uptake.
  • M. Palmgren
  • Biology, Medicine
  • Annual review of plant physiology and plant molecular biology
  • 2001
TLDR
The elucidation of the three-dimensional structure of a related Ca2+ pump has implications for understanding of structure-function relationships for the plant plasma membrane H+-ATPase. Expand
A major isoform of the maize plasma membrane H(+)-ATPase: characterization and induction by auxin in coleoptiles.
TLDR
It is concluded that auxin-induced acidification in coleoptile segments most often occurs in the nonvascular tissue and is mediated, at least in part, by increased levels of MHA2. Expand
The Acid Growth Theory of auxin-induced cell elongation is alive and well.
TLDR
The Acid Growth Theory, which states that when exposed to auxin, susceptible cells excrete protons into the wall (apoplast) at an enhanced rate, resulting in a decrease in apoplastic pH, activates wall-loosening processes, the precise nature of which is unknown. Expand
Structure of a plasma membrane H+-ATPase gene from the plant Arabidopsis thaliana.
TLDR
The genetic analysis of an H+-ATPase gene from Arabidopsis thaliana shows evidence for the existence of at least three isoforms, and opens the way for a molecular approach to the structure and function of the plant proton pump. Expand
Analysis of the phosphorylation level in guard-cell plasma membrane H+-ATPase in response to fusicoccin.
A fungal phytotoxin fusicoccin (FC) causes irreversible opening of stomata by activation of the plasma membrane H+-ATPase in guard cells. However, the mechanism by which FC activates the H+-ATPase isExpand
The Mechanism of Auxin Transport as a Model for Auxin Action
TLDR
It is proposed that in evolution, from one auxin-transporting/responding system two such mechanisms - and perhaps a third more sensitive mechanism for the root — arose by gene duplication and diversification. Expand
Control of plant cell enlargement by hydrogen ions.
Publisher Summary This chapter discusses the evidence that in Avena coleoptiles and pea stem tissues the hormone auxin induces cell enlargement, by activating proton extrusion, and that the resultingExpand
Reinvestigation of auxin and fusicoccin stimulation of the plasma-membrane H+-ATPase activity
TLDR
In vivo treatment of maize coleoptile segments with auxin and fusicoccin followed by plasma-membrane isolation concluded that neither IAA nor FC gives rise to an increase in the amount of H+ -ATPase molecules in the plasma membrane that can be detected after membrane isolation. Expand
Auxin-induced hydrogen-ion secretion in Avena coleoptiles and its implications
TLDR
It was found that auxin can rapidly (20–30 min) initiate H+ secretion and that the magnitude of auxin-induced secretion is sufficient to initiate considerable cell-extension growth. Expand
...
1
2
3
4
5
...