Anion Metabolism as Correlated with the Volume Changes of Guard Cell Protoplasts
نویسنده
چکیده
Allium cepa, Guard Cell Protoplasts, Malate, Vicia faba Isolated and purified guard cell protoplasts of starch-containing ( Vicia faba) and starch-lacking (Allium cepa) stomata were used to study the metabolism of malate and Clanions as correlated with the K +-induced swelling of protoplasts. The correlation between swelling and malate synthesis in starch-containing and the inhibition of this correlation in starch-lacking guard cell protoplasts were demonstrated. A model system was proposed involving the role of malate and its place of synthesis in these two contrasting stomatal types.
منابع مشابه
Relationship between Respiration and Photosynthesis in Guard Cell and Mesophyll Cell Protoplasts of Commelina communis L.
A mass spectrometric method combining (16)O/(18)O and (12)C/(13)C isotopes was used to quantify the unidirectional fluxes of O(2) and CO(2) during a dark to light transition for guard cell protoplasts and mesophyll cell protoplasts of Commelina communis L. In darkness, O(2) uptake and CO(2) evolution were similar on a protein basis. Under light, guard cell protoplasts evolved O(2) (61 micromole...
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