Pierre Benveniste

Overexpression of an Arabidopsis cDNA Encoding a Sterol-C241-Methyltransferase in Tobacco Modifies the Ratio of 24-Methyl Cholesterol to Sitosterol and Is Associated with Growth Reduction

Schaller, Hubert, Bouvier-Navé, Pierrette, Benveniste, Pierre

Higher plants synthesize 24-methyl sterols and 24-ethyl sterols in defined proportions. As a first step in investigating the physiological function of this balance, an Arabidopsis cDNA encoding an...

Ecdysteroid biosynthesis and embryonic development are disturbed in insects (Locusta migratoria) reared on plant diet (Triticum sativum) with a selectively modified sterol profile

Costet, Marie F., El Achouri, Mostafa, Charlet, Maurice, Lanot, Rene, Benveniste, Pierre, Hoffmann, Jules A.

Wheat seedlings germinating in the presence of the systemic fungicide fenpropimorph accumulate 9β,19-cyclopropylsterols (95% of total sterols) in place of Δ5-sterols, which are normally produced in...

Cyclopropyl Sterol and Phospholipid Composition of Membrane Fractions from Maize Roots Treated with Fenpropimorph

Grandmougin, Anne, Bouvier-Navé, Pierrette, Ullmann, Pascaline, Benveniste, Pierre, Hartmann, Marie-Andrée

Maize (Zea mays L.) caryopses were grown in the presence of fenpropimorph, a systemic fungicide, for 7 days in the dark. Membrane fractions enriched, respectively, in endoplasmic reticulum, plasma...

Phospholipid-Dependence of Plant UDP-Glucose Sterol β-d-Glucosyl Transferase 1: IV. Reconstitution into Small Unilamellar Vesicles

Ury, Alain, Benveniste, Pierre, Bouvier-Navé, Pierrette

The phospholipid dependence of the UDP-glucose sterol glucosyl transferase (UDPG-SGTase) from maize coleoptiles was previously demonstrated using the partially purified and highly delipidated enzyme,...

In Vitro Selection of Calli Resistant to a Triazole Cytochrome-P-450-Obtusifoliol-14-Demethylase Inhibitor from Protoplasts of Nicotiana tabacum L. cv Xanthi 1

Maillot-Vernier, Pascale, Schaller, Hubert, Benveniste, Pierre, Belliard, Geneviève

The selection of biochemical mutants has been undertaken in order to elucidate regulatory and functional aspects of sterol biosynthesis in plants. 2-(4-Chlorophenyl)-3-phenyl-1-(1H-1,2,4-...

Manipulation by Tridemorph, a Systemic Fungicide, of the Sterol Composition of Maize Leaves and Roots 1

Bladocha, Michèle, Benveniste, Pierre

The roots of maize (Zea mays L. var LG11) seedlings were watered with a solution of Tridemorph (2,6-dimethyl-N-tridecyl-morpholine), a systemic fungicide, for 3 to 4 weeks from the onset of...

Inactivation by Phenylglyoxal of the Specific Binding of 1-Naphthyl Acetic Acid with Membrane-Bound Auxin Binding Sites from Maize Coleoptiles

Navé, Jean-François, Benveniste, Pierre

The specific binding of 1-[3H]naphthyl acetic acid (NAA) to membrane-bound binding sites from maize (Zea mays cv INRA 258) coleoptiles is inactivated by phenylglyoxal. The inactivation obeys pseudo...

Stereochemical Aspects of the Biosynthesis of the Side Chain of 9β, 19-Cyclopropyl Sterols in Maize Seedlings Treated with Tridemorph 1

Bladocha, Michèle, Benveniste, Pierre

9β, 19-Cyclopropyl sterols such as 24-methyl pollinastanol accumulate dramatically in maize (Zea mays L. var LG 11) seedlings treated with Tridemorph (2,6-dimethyl-N-tridecyl-morpholine), a systemic...

Overexpression of an Arabidopsis cDNA Encoding a Sterol-C241-Methyltransferase in Tobacco Modifies the Ratio of 24-Methyl Cholesterol to Sitosterol and Is Associated with Growth Reduction

Schaller, Hubert, Bouvier-Navé, Pierrette, Benveniste, Pierre

Higher plants synthesize 24-methyl sterols and 24-ethyl sterols in defined proportions. As a first step in investigating the physiological function of this balance, an Arabidopsis cDNA encoding an...

Ecdysteroid biosynthesis and embryonic development are disturbed in insects (Locusta migratoria) reared on plant diet (Triticum sativum) with a selectively modified sterol profile

Costet, Marie F., El Achouri, Mostafa, Charlet, Maurice, Lanot, Rene, Benveniste, Pierre, Hoffmann, Jules A.

Wheat seedlings germinating in the presence of the systemic fungicide fenpropimorph accumulate 9β,19-cyclopropylsterols (95% of total sterols) in place of Δ5-sterols, which are normally produced in...

Cyclopropyl Sterol and Phospholipid Composition of Membrane Fractions from Maize Roots Treated with Fenpropimorph

Grandmougin, Anne, Bouvier-Navé, Pierrette, Ullmann, Pascaline, Benveniste, Pierre, Hartmann, Marie-Andrée

Maize (Zea mays L.) caryopses were grown in the presence of fenpropimorph, a systemic fungicide, for 7 days in the dark. Membrane fractions enriched, respectively, in endoplasmic reticulum, plasma...

Phospholipid-Dependence of Plant UDP-Glucose Sterol β-d-Glucosyl Transferase 1: IV. Reconstitution into Small Unilamellar Vesicles

Ury, Alain, Benveniste, Pierre, Bouvier-Navé, Pierrette

The phospholipid dependence of the UDP-glucose sterol glucosyl transferase (UDPG-SGTase) from maize coleoptiles was previously demonstrated using the partially purified and highly delipidated enzyme,...

In Vitro Selection of Calli Resistant to a Triazole Cytochrome-P-450-Obtusifoliol-14-Demethylase Inhibitor from Protoplasts of Nicotiana tabacum L. cv Xanthi 1

Maillot-Vernier, Pascale, Schaller, Hubert, Benveniste, Pierre, Belliard, Geneviève

The selection of biochemical mutants has been undertaken in order to elucidate regulatory and functional aspects of sterol biosynthesis in plants. 2-(4-Chlorophenyl)-3-phenyl-1-(1H-1,2,4-...

Manipulation by Tridemorph, a Systemic Fungicide, of the Sterol Composition of Maize Leaves and Roots 1

Bladocha, Michèle, Benveniste, Pierre

The roots of maize (Zea mays L. var LG11) seedlings were watered with a solution of Tridemorph (2,6-dimethyl-N-tridecyl-morpholine), a systemic fungicide, for 3 to 4 weeks from the onset of...

Inactivation by Phenylglyoxal of the Specific Binding of 1-Naphthyl Acetic Acid with Membrane-Bound Auxin Binding Sites from Maize Coleoptiles

Navé, Jean-François, Benveniste, Pierre

The specific binding of 1-[3H]naphthyl acetic acid (NAA) to membrane-bound binding sites from maize (Zea mays cv INRA 258) coleoptiles is inactivated by phenylglyoxal. The inactivation obeys pseudo...

Stereochemical Aspects of the Biosynthesis of the Side Chain of 9β, 19-Cyclopropyl Sterols in Maize Seedlings Treated with Tridemorph 1

Bladocha, Michèle, Benveniste, Pierre

9β, 19-Cyclopropyl sterols such as 24-methyl pollinastanol accumulate dramatically in maize (Zea mays L. var LG 11) seedlings treated with Tridemorph (2,6-dimethyl-N-tridecyl-morpholine), a systemic...