Vacuolar ion channels in the liverwort Conocephalum conicum

@article{Schnknecht2008VacuolarIC,
  title={Vacuolar ion channels in the liverwort Conocephalum conicum},
  author={Gerald Sch{\"o}nknecht and Kazimierz Trěbacz},
  journal={Plant Signaling \& Behavior},
  year={2008},
  volume={3},
  pages={404 - 405}
}
As a liverwort Conocephalum conicum belongs to the oldest terrestrial plants1 and is phylogenetically located between green algae and higher plants. Recent patch-clamp recordings on Conocephalum vacuoles demonstrate ion channels very similar to higher plants and clearly different from vacuolar ion channels described in green algae. Here we summarize the features of a vacuolar cation channel and a vacuolar anion channel that both are common in terrestrial plants but are not detected in green… 
On the cellular site of two-pore channel TPC1 action in the Poaceae.
TLDR
The finding that the rice TPC1, just like those from the model plant Arabidopsis and even animal cells, is localized and active in lyso-vacuolar membranes associates this cation channel species with endomembrane function.
Two-pore cation (TPC) channel: not a shorthanded one.
TLDR
This review emphasises the significance of these ice-breaking findings and sets a new perspective for the TPC1-based Ca2+ signalling.
Glutamatergic elements in an excitability and circumnutation mechanism
TLDR
A theoretical explanation for the finding that glutamate injection into Helianthus annuus stem induced a series of action potentials and a transient decrease in circumnutation activity is discussed here taking into considerations data about the ion mechanism of AP and circumnutations.
Characteristics of quercetin interactions with liposomal and vacuolar membranes.

References

SHOWING 1-10 OF 19 REFERENCES
Characteristics of anion channels in the tonoplast of the liverwort Conocephalum conicum.
TLDR
It is concluded that the currents at negative potentials are carried by anion channels suitable for conducting anions from the cytosol to the vacuole, and almost vanished after substituting Cl(-) with gluconate.
The gain of three mitochondrial introns identifies liverworts as the earliest land plants
The first evidence for the emergence of land plants (embryophytes) consists of mid-Ordovician spore tetrads (∼476 Myr old),. The identity of the early plants that produced these spores is unclear;
Anion Channels in Chara corallina Tonoplast Membrane: Calcium Dependence and Rectification
TLDR
The results show Ca2+-activated Cl− channels in the tonoplast of Chara with holding potential dependent rectification, which shows that the 48 pS channel was a Cl− channel.
The nitrate/proton antiporter AtCLCa mediates nitrate accumulation in plant vacuoles
TLDR
It is demonstrated that AtCLCa is able to accumulate specifically nitrate in the vacuole and behaves as a NO3-/H+ exchanger and the antiporter mechanism of a CLC protein is investigated in a native membrane system, and this property is directly connected with its physiological role.
PHYSIOLOGY OF ION TRANSPORT ACROSS THE TONOPLAST OF HIGHER PLANTS.
  • B. Barkla, O. Pantoja
  • Biology, Medicine
    Annual review of plant physiology and plant molecular biology
  • 1996
The vacuole of plant cells plays an important role in the homeostasis of the cell. It is involved in the regulation of cytoplasmic pH, sequestration of toxic ions and xenobiotics, regulation of cell
Simple method to isolate vacuoles and protoplasts for patch-clamp experiments
TLDR
A surgical method was developed to isolate protoplasts and vacuoles from the thallus of the liverwortConocephalum conicum by applying cell-wall-degrading enzymes and this method could also be applied to other plant tissues like leaves of Arabidopsis thaliana.
Tonoplast Anion Channel Activity Modulation by pH in Chara corallina
TLDR
Results show that tonoplast anion channels are maintained in a highly active state in a narrow pH range, below the resting pHcyt, and a putative physiological role of the pH-dependent modulation of these anionannels is discussed.
The Arabidopsis vacuolar malate channel is a member of the ALMT family.
TLDR
Deletion mutants for AtALMT9 exhibit only slightly reduced malate content in mesophyll protoplasts and no visible phenotype, indicating that AttDT and the residual malate channel activity are sufficient to sustain the transport activity necessary to regulate the cytosolic malate homeostasis.
A Perspective on the Slow Vacuolar Channel in Vacuoles from Higher Plant Cells
TLDR
The SV channel represents the dominating conductance of the tonoplast at elevated cytosolic calcium concentrations, and hypotheses about its physiological role have taken into consideration all the vacuolar functions mentioned above.
...
1
2
...