2 TYPES OF CHANNELS INVOLVED IN THE MALATE ION-TRANSPORT ACROSS THE TONOPLAST OF A CRASSULACEAN ACID METABOLISM PLANT

被引：43

作者：

IWASAKI, I ^{[1
]}

ARATA, H ^{[1
]}

KIJIMA, H ^{[1
]}

NISHIMURA, M ^{[1
]}

机构：

[1] NAGOYA UNIV,FAC SCI,DEPT PHYS,CHIKUSA KU,NAGOYA,AICHI 464,JAPAN

来源：

PLANT PHYSIOLOGY | 1992年 / 98卷 / 04期

关键词：

D O I：

10.1104/pp.98.4.1494

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Ion channels in tonoplast of leaf cells of a Crassulacean acid metabolism plant, Graptopetalum paraguayense, using the patch clamp technique were investigated. Results showed the existence of two types of channels involved in the malate ion transport across the tonoplast. One type corresponded to the slow-activating vacuolar-type (R Hedrich, E Neher [1987] Nature 329: 833-836), probably taking part in the malate efflux from vacuoles. Another showed the membrane potential-dependent channel current of malate flux over a wide range of cytoplasmic free Ca2+ concentration (10(-8)-10(-5) molar), a property favoring the malate uptake. This type seems to be different from the fast-activating vacuolar-type.

引用

页码：1494 / 1497

页数：4

共 18 条

[1] A REVERSIBLE CARRIER MEDIATES THE TRANSPORT OF MALATE AT THE TONOPLAST OF CATHARANTHUS-ROSEUS CELLS [J].

BOUYSSOU, H ;

CANUT, H ;

MARIGO, G .

FEBS LETTERS, 1990, 275 (1-2) :73-76

[2] A HIGHLY SELECTIVE ALKALOID UPTAKE SYSTEM IN VACUOLES OF HIGHER-PLANTS [J].

DEUSNEUMANN, B ;

ZENK, MH .

PLANTA, 1984, 162 (03) :250-260

[3] AMINO-ACID-TRANSPORT ACROSS THE TONOPLAST OF VACUOLES ISOLATED FROM BARLEY MESOPHYLL PROTOPLASTS - UPTAKE OF ALANINE, LEUCINE, AND GLUTAMINE [J].

DIETZ, KJ ;

JAGER, R ;

KAISER, G ;

MARTINOIA, E .

PLANT PHYSIOLOGY, 1990, 92 (01) :123-129

[4]

Gibbs, 1982, CRASSULACEAN ACID ME, P69

[5] PATCH-CLAMP STUDIES OF ION-TRANSPORT IN ISOLATED PLANT VACUOLES [J].

HEDRICH, R ;

FLUGGE, UI ;

FERNANDEZ, JM .

FEBS LETTERS, 1986, 204 (02) :228-232

[6] CYTOPLASMIC CALCIUM REGULATES VOLTAGE-DEPENDENT ION CHANNELS IN PLANT VACUOLES [J].

HEDRICH, R ;

NEHER, E .

NATURE, 1987, 329 (6142) :833-836

[7] COMPARATIVE STUDIES ON THE ELECTRICAL-PROPERTIES OF THE H+ TRANSLOCATING ATPASE AND PYROPHOSPHATASE OF THE VACUOLAR-LYSOSOMAL COMPARTMENT [J].

HEDRICH, R ;

KURKDJIAN, A ;

GUERN, J ;

FLUGGE, UI .

EMBO JOURNAL, 1989, 8 (10) :2835-2841

[8] CHARACTERIZATION OF AN ANION-PERMEABLE CHANNEL FROM SUGAR-BEET VACUOLES - EFFECT OF INHIBITORS [J].

HEDRICH, R ;

KURKDJIAN, A .

EMBO JOURNAL, 1988, 7 (12) :3661-3666

[9]

IWASAKI I, 1988, PLANT CELL PHYSIOL, V29, P643

[10] PROTON TRANSPORTING ENZYMES AT THE TONOPLAST OF LEAF-CELLS OF THE CAM PLANT KALANCHOE-DAIGREMONTIANA .1. THE ATPASE [J].

JOCHEM, P ;

LUTTGE, U .

JOURNAL OF PLANT PHYSIOLOGY, 1987, 129 (3-4) :251-268

← 1 2 →