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  • 1
    Digitale Medien
    Digitale Medien
    Some Current Aspects of Stomatal Physiology (1990)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Plant Physiology and Plant Molecular Biology 41 (1990), S. 55-75 
    Details
    ISSN: 1040-2519
    Quelle: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Thema: Biologie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1146/annurev.pp.41.060190.000415
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Stomatal sensitivity to abscisic acid: can it be defined? (1982)
    Oxford, UK : Blackwell Publishing Ltd
    Plant, cell & environment 5 (1982), S. 0 
    Details
    ISSN: 1365-3040
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: Abstract. Evidence is presented that the sensitivity of stomata to abscisic acid is greatly influenced by two factors which are known to vary in leaves, namely concentrations of potassium and of indol-3-ylacetic acid. It is suggested that the notion of ‘quantitative tissue sensitivity’, by which Trewavas explains the action of growth substances in developmental phenomena, may be applicable to stomatal responses to abscisic acid.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/1365-3040.ep11572699
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Stomatal responses to light and CO2 are dependent on KCI concentration (1979)
    Oxford, UK : Blackwell Publishing Ltd
    Plant, cell & environment 2 (1979), S. 0 
    Details
    ISSN: 1365-3040
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: Abstract. The responses of stomata on detached epidermis of Commelina communis to light and CO2 have been shown to be strongly dependent on the concentration of KCI in the incubation medium. There was a high sensitivity to the two stimuli in 50 mM KCI, but there were much reduced responses at lower and higher concentrations. It is considered that an appropriate choice of medium is essential if useful physiological studies of stomata are to be made using epidermal strips. At lower KCI concentrations, the ability of the stomata to open is thought to be limited by the availability of K+ ions, and at higher concentrations their ability to close may be affected because of an inhibition of the net efflux of K+. The production of malate was related to KCI concentration, and was largest in the medium containing zero KCI which supported poor stomatal responses to light and CO2It is concluded that malate metabolism is unlikely to play a central part in the changes in guard cell turgor that are brought about by light and CO2.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-3040.1979.tb00086.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    The effect of benzo-18-crown-6, a synthetic ionophore, on stomatal opening and its interaction with abscisic acid (1979)
    Oxford, UK : Blackwell Publishing Ltd
    Plant, cell & environment 2 (1979), S. 0 
    Details
    ISSN: 1365-3040
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: Abstract. Treatment of tomato seedlings with 5 mM benzo-18-crown-6, a potassium ionophore, produced a reduction in transpiration of 40%. Treatments of epidermal strips of Commelina communis with ben-zo-18-crown-6 (1-l0mM) inhibited stomatal opening, and this effect was shown to be reversible. An antagonistic interaction between abscisic acid (10−7M) and benzo-18-crown-6 (4 × 10−3 M) was also observed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-3040.1979.tb00087.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    Stomatal responses to sodium ions in Aster tripolium: a new hypothesis to explain salinity regulation in above-ground tissues (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Plant, cell & environment 17 (1994), S. 0 
    Details
    ISSN: 1365-3040
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: A study has been made of the ionic relations of stomata of Aster tripolium L., a maritime halophyte which colonizes coastal saltmarshes. The results obtained allow us to add this species to the growing list for which an involvement of K+ transport in stomatal movements has been demonstrated. However, an additional and ecologically important characteristic was found: there was a suppression of stomatal opening by increasing NaCl concentrations. A new hypothesis is offered of the mechanism for controlling salt and water relations in A. tripolium, a species which does not possess glands or other means of excreting salt. It is suggested that when the capacity of the tissues to accumulate salt in cell vacuoles is exceeded, the concentration of Na+ ions in the apoplast around the guard cells begins to rise. This causes partial stomatal closure, reduces transpiration and increases water-use-efficiency. Therefore, the flow of salt into the leaves is reduced but growth (and the manufacture of the new photosynthates required to support it) can continue. Aster tripolium can be added to the small list of known species which readily yield isolated epidermis suitable for detailed stomatal studies. Throughout this study, we have compared its stomatal physiology with C. communis, which has been thoroughly investigated in the past.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-3040.1994.tb00300.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Digitale Medien
    Digitale Medien
    PLANTS AND THEIR ATMOSPHERIC ENVIRONMENT (Book). (1982)
    Oxford, UK : Blackwell Publishing
    Plant, cell & environment 5 (1982), S. 0 
    Details
    ISSN: 1365-3040
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/1365-3040.ep11571380
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    Sensing of soil water status and the regulation of plant growth and development (1990)
    Oxford, UK : Blackwell Publishing Ltd
    Plant, cell & environment 13 (1990), S. 0 
    Details
    ISSN: 1365-3040
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: Abstract. It is now clear that drying of the soil does not always result in an early change in shoot water status. This may be because stomata close and leaf growth slows to reduce water loss. When this is the case, it is necessary to ask how the change in soil water status has been ‘sensed’by the shoot. The current view is that soil drying results in some type of chemical signalling between roots and shoots. The sensitivity of the response and experiments involving the manipulation of small parts of root systems suggest that the signalling involves more than a simple change in root activity in response to soil drying. In this paper, we consider the evidence for chemical signalling between roots and shoots and discuss the possible candidates for such signals. In some plants, root-sourced ABA can apparently influence shoot physiology and growth in the absence of any perturbation of shoot water relations. The ABA produced is quantitatively sufficient to account for the responses observed. Applied ABA can mimic many of the effects of soil drying on plants, including effects at the plasma membrane and on gene expression. Perhaps uniquely, ABA seems to be involved in signalling between different plant organs, and in signalling at the transmembrane and genome levels. We review the effects of ABA on leaf cells with a view to gaining some understanding of how soil drying may influence plant development.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-3040.1990.tb01085.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
    Digitale Medien
    Digitale Medien
    Effects of external potassium supply on stomatal closure induced by abscisic acid (1978)
    Oxford, UK : Blackwell Publishing Ltd
    Plant, cell & environment 1 (1978), S. 0 
    Details
    ISSN: 1365-3040
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: Abstract Epidermal strips of Commelina communis with ‘isolated’ stomata were incubated on Trizma-maleate buffer containing 0-500 mM KCL, with or without 10−4 M ABA, for 2.5 h. The resulting stomatal apertures indicate that there is no absolute requirement for live epidermal and subsidiary cells for ABA-mediated closure. This implies that ABA has a direct effect on influx or efflux of K+ into or out of the guard cells rather than on uptake of K+ by the subsidiary cells. The possible in vivo role of subsidiary cells in stomatal closure is discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-3040.1978.tb00761.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
    Digitale Medien
    Digitale Medien
    Stomatal behaviour, photosynthesis and transpiration under rising CO2 (1999)
    Oxford, UK : Blackwell Publishing Ltd
    Plant, cell & environment 22 (1999), S. 0 
    Details
    ISSN: 1365-3040
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: 
Definitions of the variables used and the units are given in 〈link href="#t1"〉Table 1

The literature reports enormous variation between species in the extent of stomatal responses to rising CO2. This paper attempts to provide a framework within which some of this diversity can be explained. We describe the role of stomata in the short-term response of leaf gas exchange to increases in ambient CO2 concentration by developing the recently proposed stomatal model of Jarvis & Davies (1998). In this model stomatal conductance is correlated with the functioning of the photosynthetic system so that the effects of increases in CO2 on stomata are experienced through changes in the rate of photosynthesis in a simple and mechanistically transparent way. This model also allows us to consider the effects of evaporative demand and soil moisture availability on stomatal responses to photosynthesis and therefore provides a means of considering these additional sources of variation. We emphasize that the relationship between the rate of photosynthesis and the internal CO2 concentration and also drought will have important effects on the relative gains to be achieved under rising CO2.〈tabular xml:id="t1"〉1〈title type="main"〉 . Abbreviations 〈mediaResource alt="image" href="urn:x-wiley:01407791:PCE407:PCE_407_t1"/〉
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-3040.1999.00407.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 10
    Digitale Medien
    Digitale Medien
    Reduced stomatal responses to light, carbon dioxide and abscisic acid in the presence of sodium ions (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Plant, cell & environment 3 (1980), S. 0 
    Details
    ISSN: 1365-3040
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: Abstract Responses of stomata to light and CO2 were smaller when detached epidermis of Commelina communis L. was incubated on a medium containing 50 mol m−3 NaCl than when an equimolar KCl solution was used. Although opening in the light in the absence of CO2 seemed to be the same whichever salt was present, apertures on KCl solutions were smaller in the dark or with CO2-containing air. The response to 10−7 mol dm−3 ABA was similarly reduced in the presence of NaCl. If there is an optimal NaCl concentration for stomatal CO2 and light responses it is at or below 25 mol m−3. These findings point towards control of stomatal movements by light, CO2 and ABA at the level of cation uptake or extrusion.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/1365-3040.ep11581831
    Standort Signatur Erwartet Verfügbarkeit
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