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Literature DB >> 16663406

Osmoregulation or turgor regulation in chara?

Abstract

Chara corallina Klein ex Willd. wm. R.D.W. (= C. australis R. Br.), a fresh water alga, maintains a constant internal osmotic pressure when external osmotic pressure is increased. This results in a decrease in turgor pressure. Chara osmoregulates effectively in the presence of high CaCl(2) and raffinose, but is less efficient in response to increased NaCl. Decreasing external pH from 7 to 5 results in a decrease in turgor, but increasing it to values as high as 9 has no effect. Increasing the daily amount of light from 0.5 to 24 hours has no effect on turgor.

Entities: Chemical Species

Year: 1984 PMID： 16663406 PMCID： PMC1066664 DOI： 10.1104/pp.74.2.252

Source DB: PubMed Journal: Plant Physiol ISSN： 0032-0889 Impact factor: 8.340

2 in total

1. Osmotic regulation in the marine alga, Codium decorticatum. I. Regulation of turgor pressure by control of ionic composition.

Authors: M A Bisson; J Gutknecht
Journal: J Membr Biol Date: 1975-11-07 Impact factor: 1.843

2. Responses of halophytes to high salinities and low water potentials.

Authors: R L Jefferies; T Rudmik; E M Dillon
Journal: Plant Physiol Date: 1979-12 Impact factor: 8.340

2 in total

13 in total

10. Plasma Membrane Na+ Transport in a Salt-Tolerant Charophyte (Isotopic Fluxes, Electrophysiology, and Thermodynamics in Plants Adapted to Saltwater and Freshwater).

Authors: E. A. Kiegle; M. A. Bisson
Journal: Plant Physiol Date: 1996-08 Impact factor: 8.340

Osmoregulation or turgor regulation in chara?

1. Osmotic regulation in the marine alga, Codium decorticatum. I. Regulation of turgor pressure by control of ionic composition.

2. Responses of halophytes to high salinities and low water potentials.

1. Chara plasmalemma at high pH: voltage dependence of the conductance at rest and during excitation.

2. Enlargement in chara studied with a turgor clamp : growth rate is not determined by turgor.

3. Pressure regulation of the electrical properties of growing Arabidopsis thaliana L. root hairs.

4. Seasonal changes of ionic concentrations in the vacuolar sap of Chara vulgaris L. growing in a brackish water lake.

5. Transduction of pressure signal to electrical signal upon sudden increase in turgor pressure in Chara corallina.

6. Chara buckellii, a Euryhaline Charophyte from an Unusual Saline Environment : III. Time Course of Turgor Regulation.

7. Hydrostatic pressure mimics gravitational pressure in characean cells.

8. Inhibitors of proton pumping: effect on passive proton transport.

9. Extension growth of the water mold Achlya: interplay of turgor and wall strength.

10. Plasma Membrane Na+ Transport in a Salt-Tolerant Charophyte (Isotopic Fluxes, Electrophysiology, and Thermodynamics in Plants Adapted to Saltwater and Freshwater).