André Mariotti

Oxic–anoxic conditions in the water column of a tropical freshwater reservoir (Peña-Larga dam, NW Venezuela) (2005)

Bellanger, Boris, Huon, Sylvain, Steinmann, Philipp, Chabaux, François, Velasquez, Fernando, Vallès, Vincent, ...

A freshwater reservoir (area: 122 km2, volume: 2850 × 106 m3, maximum depth: 72 m) located at the outlet of a tropical Andean watershed (Rio Boconó, 1620 km2, 08°57′–09°31′N,...

Oxic–anoxic conditions in the water column of a tropical freshwater reservoir (Peña-Larga dam, NW Venezuela) (2005)

Bellanger, Boris, Huon, Sylvain, Steinmann, Philipp, Chabaux, François, Velasquez, Fernando, Vallès, Vincent, ...

A freshwater reservoir (area: 122 km2, volume: 2850 × 106 m3, maximum depth: 72 m) located at the outlet of a tropical Andean watershed (Rio Boconó, 1620 km2, 08°57′–09°31′N,...

Mild hydrolysis and alcohol compounds of humic acids (2002)

Sen, Dou, Lichtfouse, Eric, Mariotti, André

Alcohol compounds of humic acid (HA) hydrolyzed products were studied by using alkaline mild hydrolysis, thin layer chromatography (TLC) and GC—MC. The results showed that the alcohols content in HA...

Mild hydrolysis and alcohol compounds of humic acids (2002)

Sen, Dou, Lichtfouse, Eric, Mariotti, André

Alcohol compounds of humic acid (HA) hydrolyzed products were studied by using alkaline mild hydrolysis, thin layer chromatography (TLC) and GC—MC. The results showed that the alcohols content in HA...

Herbivore paleodiet and paleoenvironmental changes in Chad during the Pliocene using stable isotope ratios of tooth enamel carbonate (2000)

Antoine Zazzo, Hervé Bocherens, Michel Brunet, Alain Beauvilain, Daniel Billiou, Hassane Taisso Mackaye, ...

Chad is a key region for understanding early hominid geographic expansion in relation to late Miocene and Pliocene environmental changes, owing to its location 2500 km west from the Rift Valley and...

Molecular, 13C, and 14C evidence for the allochthonous and ancient origin of C16-C18 n-alkanes in modern soils (1997)

Lichtfouse, Eric, Bardoux, Gérard, Mariotti, André, Balesdent, Jérôme, C. Ballentine, Donna, A. Macko, Stephen

The heterogeneous isotopic composition of C3 and C4 plants can be used to to follow the fate of plant carbon into soil organic molecules. Thus, after 23 years of cropping of maize (C4) on a soil...

Molecular, 13C, and 14C evidence for the allochthonous and ancient origin of C16-C18 n-alkanes in modern soils (1997)

Lichtfouse, Eric, Bardoux, Gérard, Mariotti, André, Balesdent, Jérôme, C. Ballentine, Donna, A. Macko, Stephen

The heterogeneous isotopic composition of C3 and C4 plants can be used to to follow the fate of plant carbon into soil organic molecules. Thus, after 23 years of cropping of maize (C4) on a soil...

Isotope and molecular evidence for direct input of maize leaf wax n-alkanes into crop soils (1994)

Lichtfouse, Eric, Elbisser, Brigitte, Balesdent, Jérôme, Mariotti, André, Bardoux, Gérard

The contribution of plant carbon to crop soils can be followed by isotope labelling at natural abundance, such as growing a C4 plant on a soil which was previously under C3 vegetation. For this...

Possible algal origin of long chain odd n-alkanes in immature sediments as revealed by distributions and carbon isotope ratios (1994)

Lichtfouse, Eric, Derenne, Sylvie, Mariotti, André, Largeau, Claude

A Pliocene oil shale (Pula, Hungary), a C3 plant Triticum aestivum and a C4 plant Zea mays were compared using isotopic composition of bulk organic matter, along with distributions and individual...

Isotope and molecular evidence for direct input of maize leaf wax n-alkanes into crop soils (1994)

Lichtfouse, Eric, Elbisser, Brigitte, Balesdent, Jérôme, Mariotti, André, Bardoux, Gérard

The contribution of plant carbon to crop soils can be followed by isotope labelling at natural abundance, such as growing a C4 plant on a soil which was previously under C3 vegetation. For this...

Possible algal origin of long chain odd n-alkanes in immature sediments as revealed by distributions and carbon isotope ratios (1994)

Lichtfouse, Eric, Derenne, Sylvie, Mariotti, André, Largeau, Claude

A Pliocene oil shale (Pula, Hungary), a C3 plant Triticum aestivum and a C4 plant Zea mays were compared using isotopic composition of bulk organic matter, along with distributions and individual...

Unexpected enrichment of nitrogen during the diagenetic evolution of sedimentary organic matter (1984)

Boudou, Jean-Paul, Mariotti, André, Oudin, J.L.

This study examines the behaviour of nitrogen during coalification in two coal series: the sedimentologically homogeneous coal series of the Mahakam delta, Indonesia and a reference coal series...

Unexpected enrichment of nitrogen during the diagenetic evolution of sedimentary organic matter (1984)

Boudou, Jean-Paul, Mariotti, André, Oudin, J.L.

This study examines the behaviour of nitrogen during coalification in two coal series: the sedimentologically homogeneous coal series of the Mahakam delta, Indonesia and a reference coal series...

Nitrogen Isotope Fractionation Associated with Nitrate Reductase Activity and Uptake of NO3− by Pearl Millet 1

Mariotti, André, Mariotti, Françoise, Champigny, Marie-Louise, Amarger, Noelle, Moyse, Alexis

Nitrogen isotope fractionation by Pearl Millet (Pennisetum americanum L. and P. mollissimum L.) grown on nitrate was associated with nitrate reductase activity. Fractionation was evidenced at the...

Estimation of Carbon and Nitrogen Allocation during Stalk Elongation by 13C and 15N Tracing in Zea mays L. 1

Cliquet, Jean-Bernard, Deléens, Eliane, Bousser, Agnès, Martin, Michel, Lescure, Jean-Charles, Prioul, Jean-Louis, ...

Zea mays L. (cv Dea) plants grown to the stage of stalk elongation, were allowed to assimilate 13CO2 and 15N-nitrates from 45 to 53 days after sowing. Isotopic abundances in labeled nutrients were...

15N Abundance of Nodules as an Indicator of N Metabolism in N2-Fixing Plants 1

Shearer, Georgia, Feldman, Lori, Bryan, Barbara A., Skeeters, Jerri L., Kohl, Daniel H., Amarger, Nöelle, ...

This paper expands upon previous reports of 15N elevation in nodules (compared to other tissues) of N2-fixing plants. N2-Fixing nodules of Glycine max (soybeans), Vigna unguiculata (cowpea),...

C and N Mobilization from Stalk and Leaves during Kernel Filling by 13C and 15N Tracing in Zea mays L. 1

Cliquet, Jean-Bernard, Deléens, Eliane, Mariotti, André

The sink capacity of the stalk in Zea mays L. (cv DEA) during the elongation period was previously investigated with 13C and 15N tracing. The chase experiment described here demonstrates the...

Nitrogen Isotope Fractionation Associated with Nitrate Reductase Activity and Uptake of NO3− by Pearl Millet 1

Mariotti, André, Mariotti, Françoise, Champigny, Marie-Louise, Amarger, Noelle, Moyse, Alexis

Nitrogen isotope fractionation by Pearl Millet (Pennisetum americanum L. and P. mollissimum L.) grown on nitrate was associated with nitrate reductase activity. Fractionation was evidenced at the...

Estimation of Carbon and Nitrogen Allocation during Stalk Elongation by 13C and 15N Tracing in Zea mays L. 1

Cliquet, Jean-Bernard, Deléens, Eliane, Bousser, Agnès, Martin, Michel, Lescure, Jean-Charles, Prioul, Jean-Louis, ...

Zea mays L. (cv Dea) plants grown to the stage of stalk elongation, were allowed to assimilate 13CO2 and 15N-nitrates from 45 to 53 days after sowing. Isotopic abundances in labeled nutrients were...

15N Abundance of Nodules as an Indicator of N Metabolism in N2-Fixing Plants 1

Shearer, Georgia, Feldman, Lori, Bryan, Barbara A., Skeeters, Jerri L., Kohl, Daniel H., Amarger, Nöelle, ...

This paper expands upon previous reports of 15N elevation in nodules (compared to other tissues) of N2-fixing plants. N2-Fixing nodules of Glycine max (soybeans), Vigna unguiculata (cowpea),...

C and N Mobilization from Stalk and Leaves during Kernel Filling by 13C and 15N Tracing in Zea mays L. 1

Cliquet, Jean-Bernard, Deléens, Eliane, Mariotti, André

The sink capacity of the stalk in Zea mays L. (cv DEA) during the elongation period was previously investigated with 13C and 15N tracing. The chase experiment described here demonstrates the...