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Comparison of mechanisms controlling uptake and accumulation of 2,4-dichlorophenoxy acetic acid, naphthalene-1-acetic acid, and indole-3-acetic acid in suspension-cultured tobacco cells
Accumulation of radiolabelled naphthalene-1-acetic acid (1-NAA), 2,4-dichlorophenoxyacetic acid (2,4-D), and indole-3-acetic acid (IAA) has been measured in suspension-cultured tobacco (NicotianaExpand
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Uptake, accumulation and metabolism of auxins in tobacco leaf protoplasts
Uptake and metabolism of exogenous naphthalene-1-acetic acid (NAA) and indole-3-acetic acid (IAA) have been studied in tobacco (Nicotiana tabacum L. cv. Xanthi) mesophyll protoplasts. Both auxinsExpand
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Inhibitors of the carrier-mediated influx of auxin in suspension-cultured tobacco cells
Abstract. Active auxin transport in plant cells is catalyzed by two carriers working in opposite directions at the plasma membrane, the influx and efflux carriers. A role for the efflux carrier inExpand
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[3H]protein secretion in rat parotid gland: substance P-beta-adrenergic synergism.
In parotid fragment [3H]protein, secretion induced by substance P was moderate, but strongly Ca dependent. However, secretion induced by isoproterenol was large and Ca independent. Potentiation ofExpand
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The rolB Gene of Agrobacterium rhizogenes Does Not Increase the Auxin Sensitivity of Tobacco Protoplasts by Modifying the Intracellular Auxin Concentration
Phenotypical alterations observed in rolB-transformed plants have been proposed to result from a rise in intracellular free auxin due to a RolB-catalyzed hydrolysis of auxin conjugates(J.J. Estruch,Expand
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Anti-substance P anti-idiotypic antibodies. Characterization and biological activities.
Antibodies to substance P (SP) produced in rabbits have been characterized for their specificity toward SP and some 30 SP-related peptides. For each compound, we observed a close correlation betweenExpand
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Forskolin, a tool for rat parotid secretion studies: 45Ca efflux is not related to cAMP.
In the present work, we investigated, by use of forskolin, whether adenosine 3',5'-cyclic monophosphate (cAMP) level and Ca movements were modulated sequentially or in parallel by the activation ofExpand
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Importance of the presence of the N-terminal tripeptide of substance P for the stimulation of phosphatidylinositol metabolism in rat parotid gland: A possible activation of phospholipases C and D
In this study, we have compared the effects of Substance P (SP) and an SP deprived of the N-terminal tripeptide, SP(4-11), on phosphoinositide metabolism by measuring phosphoinositide breakdown,Expand
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Microfilaments and cellular signal transduction: Effect of cytochalasin D on the production of cAMP, inositol phosphates, and on calcium movements in rat parotid glands
Summary— In rat parotid glands, the involvement of the microfilament system in the cellular signal transmission mechanism was tested by measuring the effect of cytochalasin D (which disturbs theExpand
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Involvement of NK1 receptors and importance of the N-terminal sequence of substance P in the stimulation of protein secretion in rat parotid glands.
Recent in vitro studies have shown that the dose-response curve of substance P on [3H]protein secretion from rat parotid glands is biphasic. Such a response could result either from the activation ofExpand
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