INFLUENCE OF THE MESOPHYLL ON STOMATAL OPENING

被引:46
作者
LEE, JS [1 ]
BOWLING, DJF [1 ]
机构
[1] UNIV ABERDEEN,DEPT PLANT & SOIL SCI,ABERDEEN AB9 2UD,SCOTLAND
来源
AUSTRALIAN JOURNAL OF PLANT PHYSIOLOGY | 1995年 / 22卷 / 03期
关键词
COMMELINA COMMUNIS L; MESOPHYLL CELLS; MEMBRANE HYPERPOLARIZATION; SIGNAL TRANSDUCTION; STOMATA;
D O I
10.1071/PP9950357
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Some studies have shown that stomata in detached epidermis behave differently, both quantitatively and qualitatively, from those in the intact leaf. Stomata in the intact leaf are very sensitive to environmental factors such as light, CO2 and osmotic stress, but stomata in detached epidermis are less sensitive to these factors than those in the intact leaf. Stomata in the intact leaf open in the light acid close in the dark, whereas previously opened stomata in detached epidermis do not close on transfer to darkness and they are dependent on the KCl concentration in the incubation medium. Electrophysiological results also demonstrate different responses of guard cells in the intact leaf and detached epidermis. The electrical potential across the membrane of the guard cell in the intact leaf was hyperpolarised in response to light and CO2. However, there were no changes in the membrane potential difference in response to light and CO2 in detached epidermis. In CCCP-infiltrated leaf discs, the guard cell membrane was conversely depolarised by light, indicating that the guard cell membrane hyperpolarisation was related to the mesophyll cells. These results suggest the participation of the mesophyll in stomatal control. It is possible that stomatal opening in the intact leaf, to a greater or lesser extent, is dependent on an electrical signal or a chemical propagated from the mesophyll.
引用
收藏
页码:357 / 363
页数:7
相关论文
共 76 条
[1]  
Assmann S. M., 1987, Stomatal function, P163
[2]   CONTROL OF STOMATAL APERTURE BY CALCIUM IN ISOLATED EPIDERMAL TISSUE AND WHOLE LEAVES OF COMMELINA-COMMUNIS L [J].
ATKINSON, CJ ;
MANSFIELD, TA ;
KEAN, AM ;
DAVIES, WJ .
NEW PHYTOLOGIST, 1989, 111 (01) :9-17
[3]   THE XYLEM WEDGE AS A FUNCTIONAL UNIT - SPECULATIONS ON THE CONSEQUENCES OF FLOW IN LEAKY TUBES [J].
CANNY, MJ .
NEW PHYTOLOGIST, 1991, 118 (03) :367-374
[4]   CELL POTENTIALS AND TURGOR PRESSURES IN EPIDERMAL-CELLS OF TRADESCANTIA AND COMMELINA [J].
CHEESEMAN, JM ;
EDWARDS, M ;
MEIDNER, H .
JOURNAL OF EXPERIMENTAL BOTANY, 1982, 33 (135) :761-770
[5]   UPTAKE AND METABOLISM OF CARBOHYDRATES BY EPIDERMAL TISSUE [J].
DITTRICH, P ;
RASCHKE, K .
PLANTA, 1977, 134 (01) :83-90
[6]   AN ELECTROPHYSIOLOGICAL STUDY OF THE STOMATAL COMPLEX OF TRADESCANTIA-VIRGINIANA [J].
EDWARDS, A ;
BOWLING, DJF .
JOURNAL OF EXPERIMENTAL BOTANY, 1984, 35 (153) :562-567
[7]   GUARD-CELLS EXTRUDE PROTONS PRIOR TO STOMATAL OPENING - A STUDY USING FLUORESCENCE MICROSCOPY AND PH MICRO-ELECTRODES [J].
EDWARDS, MC ;
SMITH, GN ;
BOWLING, DJF .
JOURNAL OF EXPERIMENTAL BOTANY, 1988, 39 (208) :1541-1547
[8]   GAIN OF FEEDBACK LOOP INVOLVING CARBON-DIOXIDE AND STOMATA - THEORY AND MEASUREMENT [J].
FARQUHAR, GD ;
DUBBE, DR ;
RASCHKE, K .
PLANT PHYSIOLOGY, 1978, 62 (03) :406-412
[10]   TRANSMISSION OF A TRAUMATIC SIGNAL VIA A WAVE OF ELECTRIC DEPOLARIZATION, AND INDUCTION OF CORRELATIONS BETWEEN THE COTYLEDONARY BUDS IN BIDENS-PILOSUS [J].
FRACHISSE, JM ;
DESBIEZ, MO ;
CHAMPAGNAT, P ;
THELLIER, M .
PHYSIOLOGIA PLANTARUM, 1985, 64 (01) :48-52