Vacuolar and cytoplasmic pH, ion composition, and turgor pressure in Lamprothamnium as a function of external pH

G. O. Kirst; M. A. Bisson

doi:10.1007/BF00429453

Vacuolar and cytoplasmic pH, ion composition, and turgor pressure in Lamprothamnium as a function of external pH

G. O. Kirst
, M. A. Bisson

Biological Sciences

University at Buffalo

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

Ionic responses to alteration in external and internal pH were examined in an organism from a marine-like environment. Vacuolar pH (pH^v) is about 4.9-5.1, constant at external pH (pH^o) 5-8, while cytoplasmic pH (pH^c) increases from 7.3 to 7.7. pH^c regulation fails above pH^o 9, and this is accompanied by failure of turgor regulation. Na⁺ increases above pH^o 9, while K⁺ and Cl^- decrease. These changes alone cannot however explain the alterations in turgor. Agents known to affect internal pH are also tested for their effect on ion relations.

Original language	English
Pages (from-to)	287-295
Number of pages	9
Journal	Planta
Volume	155
Issue number	4
DOIs	https://doi.org/10.1007/BF00429453
State	Published - Aug 1982

Keywords

Charophyta
Ion composition
Lamprothamnium
Salinity
Turgor pressure
pH (internal)

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10.1007/BF00429453

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title = "Vacuolar and cytoplasmic pH, ion composition, and turgor pressure in Lamprothamnium as a function of external pH",

abstract = "Ionic responses to alteration in external and internal pH were examined in an organism from a marine-like environment. Vacuolar pH (pHv) is about 4.9-5.1, constant at external pH (pHo) 5-8, while cytoplasmic pH (pHc) increases from 7.3 to 7.7. pHc regulation fails above pHo 9, and this is accompanied by failure of turgor regulation. Na+ increases above pHo 9, while K+ and Cl- decrease. These changes alone cannot however explain the alterations in turgor. Agents known to affect internal pH are also tested for their effect on ion relations.",

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year = "1982",

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doi = "10.1007/BF00429453",

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T1 - Vacuolar and cytoplasmic pH, ion composition, and turgor pressure in Lamprothamnium as a function of external pH

AU - Kirst, G. O.

AU - Bisson, M. A.

PY - 1982/8

Y1 - 1982/8

N2 - Ionic responses to alteration in external and internal pH were examined in an organism from a marine-like environment. Vacuolar pH (pHv) is about 4.9-5.1, constant at external pH (pHo) 5-8, while cytoplasmic pH (pHc) increases from 7.3 to 7.7. pHc regulation fails above pHo 9, and this is accompanied by failure of turgor regulation. Na+ increases above pHo 9, while K+ and Cl- decrease. These changes alone cannot however explain the alterations in turgor. Agents known to affect internal pH are also tested for their effect on ion relations.

AB - Ionic responses to alteration in external and internal pH were examined in an organism from a marine-like environment. Vacuolar pH (pHv) is about 4.9-5.1, constant at external pH (pHo) 5-8, while cytoplasmic pH (pHc) increases from 7.3 to 7.7. pHc regulation fails above pHo 9, and this is accompanied by failure of turgor regulation. Na+ increases above pHo 9, while K+ and Cl- decrease. These changes alone cannot however explain the alterations in turgor. Agents known to affect internal pH are also tested for their effect on ion relations.

KW - Charophyta

KW - Ion composition

KW - Lamprothamnium

KW - Salinity

KW - Turgor pressure

KW - pH (internal)

UR - https://www.scopus.com/pages/publications/2342595581

U2 - 10.1007/BF00429453

DO - 10.1007/BF00429453

M3 - Article

SN - 0032-0935

VL - 155

SP - 287

EP - 295

JO - Planta

JF - Planta

IS - 4

ER -

Vacuolar and cytoplasmic pH, ion composition, and turgor pressure in Lamprothamnium as a function of external pH

Abstract

Keywords

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