Alain Jauneau

Comparison between the Anatomical and Morphological Structure of Leaf Blades and Foliar Domatia in the Ant-plant Hirtella physophora (Chrysobalanaceae) (2008)

Leroy, Céline, Jauneau, Alain, Quilichini, Angélique, Dejean, Alain, Orivel, Jérôme

Background and Aims Myrmecophytes, or ant-plants, are characterized by their ability to shelter colonies of some ant species in hollow structures, or ant-domatia, that are often formed by hypertrophy...

Strigolactones Stimulate Arbuscular Mycorrhizal Fungi by Activating Mitochondria (2006)

Arnaud Besserer, Virginie Puech-Pagès, Patrick Kiefer, Victoria Gomez-Roldan, Alain Jauneau, Sébastien Roy, ...

Strigolactones from Sorghum promote growth of multiple arbuscular mycorrhizal fungi, underscoring the importance of these molecules in the symbiotic relationship between plant roots and the...

Strigolactones Stimulate Arbuscular Mycorrhizal Fungi by Activating Mitochondria (2006)

Arnaud Besserer, Virginie Puech-Pagès, Patrick Kiefer, Victoria Gomez-Roldan, Alain Jauneau, Sébastien Roy, ...

The association of arbuscular mycorrhizal (AM) fungi with plant roots is the oldest and ecologically most important symbiotic relationship between higher plants and microorganisms, yet the mechanism...

Cell wall proteins in apoplastic fluids of Arabidopsis thaliana rosettes: identification by mass spectrometry and bioinformatics. (2005)

Boudart, Georges, Jamet, Elisabeth, Rossignol, Michel, Lafitte, Claude, Borderies, Gisèle, Jauneau, Alain, ...

Weakly bound cell wall proteins of Arabidopsis thaliana were identified using a proteomic and bioinformatic approach. An efficient protocol of extraction based on vacuum-infiltration of the tissues...

Cell wall proteins in apoplastic fluids of Arabidopsis thaliana rosettes: identification by mass spectrometry and bioinformatics. (2005)

Boudart, Georges, Jamet, Elisabeth, Rossignol, Michel, Lafitte, Claude, Borderies, Gisèle, Jauneau, Alain, ...

Weakly bound cell wall proteins of Arabidopsis thaliana were identified using a proteomic and bioinformatic approach. An efficient protocol of extraction based on vacuum-infiltration of the tissues...

Molecular and biochemical characterization of LeCRK1, a ripening-associated tomato CDPK-related kinase (2005)

Leclercq, Julie, Ranty, Benoît, Sanchez-Ballesta, Maria-Teresa, Li, Zhengguo, Jones, Brian, Jauneau, Alain, ...

A cDNA clone (LeCRK1), encoding a novel isoform of calcium-dependent protein kinase (CDPK), was isolated by screening a tomato (Lycopersicon esculentum) cDNA library. The protein derived from the...

The actin cytoskeleton is involved in signalling protoplast embryogenesis induced by agarose embedding (2004)

Brière, Christian, Barthou, Henri, Jauneau, Alain, Alibert, Gilbert, Petitprez, Michel

The organization of actin microfilaments was studied by immunofluorescence in protoplasts isolated from sunflower hypocotyls and cultured in an agarose matrix. Removal of the cell wall completely...

The actin cytoskeleton is involved in signalling protoplast embryogenesis induced by agarose embedding (2004)

Brière, Christian, Barthou, Henri, Jauneau, Alain, Alibert, Gilbert, Petitprez, Michel

The organization of actin microfilaments was studied by immunofluorescence in protoplasts isolated from sunflower hypocotyls and cultured in an agarose matrix. Removal of the cell wall completely...

The actin cytoskeleton is involved in signalling protoplast embryogenesis induced by agarose embedding (2004)

Brière, Christian, Barthou, Henri, Jauneau, Alain, Alibert, Gilbert, Petitprez, Michel

The organization of actin microfilaments was studied by immunofluorescence in protoplasts isolated from sunflower hypocotyls and cultured in an agarose matrix. Removal of the cell wall completely...

The actin cytoskeleton is involved in signalling protoplast embryogenesis induced by agarose embedding (2004)

Brière, Christian, Barthou, Henri, Jauneau, Alain, Alibert, Gilbert, Petitprez, Michel

The organization of actin microfilaments was studied by immunofluorescence in protoplasts isolated from sunflower hypocotyls and cultured in an agarose matrix. Removal of the cell wall completely...

Molecular and biochemical characterization of LeCRK1, a ripening-associated tomato CDPK-related kinase (2004)

Leclercq, Julie, Ranty, Benoît, Sanchez-Ballesta, Maria-Teresa, Li, Zhengguo, Jones, Brian, Jauneau, Alain, ...

A cDNA clone (LeCRK1), encoding a novel isoform of calcium-dependent protein kinase (CDPK), was isolated by screening a tomato (Lycopersicon esculentum) cDNA library. The protein derived from the...

Is the LIM-domain Protein HaWLIM1 Associated with Cortical Microtubules in Sunflower Protoplasts? (2003)

Brière, Christian, Bordel, Anne-Claire, Barthou, Henri, Jauneau, Alain, Steinmetz, André, Alibert, Gilbert, ...

Flowering plants express several LIM-domain proteins related to the animal cystein-rich proteins. The expression of sunflower LIM genes was followed by RTPCR in cultured sunflower protoplasts. A...

Is the LIM-domain Protein HaWLIM1 Associated with Cortical Microtubules in Sunflower Protoplasts? (2003)

Brière, Christian, Bordel, Anne-Claire, Barthou, Henri, Jauneau, Alain, Steinmetz, André, Alibert, Gilbert, ...

Flowering plants express several LIM-domain proteins related to the animal cystein-rich proteins. The expression of sunflower LIM genes was followed by RTPCR in cultured sunflower protoplasts. A...

Is the LIM-domain Protein HaWLIM1 Associated with Cortical Microtubules in Sunflower Protoplasts? (2003)

Brière, Christian, Bordel, Anne-Claire, Barthou, Henri, Jauneau, Alain, Steinmetz, André, Alibert, Gilbert, ...

Flowering plants express several LIM-domain proteins related to the animal cystein-rich proteins. The expression of sunflower LIM genes was followed by RTPCR in cultured sunflower protoplasts. A...

Proteomics of loosely bound cell wall proteins of Arabidopsis thaliana cell suspension cultures: a critical analysis. (2003)

Borderies, Gisèle, Jamet, Elisabeth, Lafitte, Claude, Rossignol, Michel, Jauneau, Alain, Boudart, Georges, ...

The complete sequencing of the Arabidopsis thaliana genome allows the use of the recently developed mass spectrometry techniques to identify the cell wall proteins (CWPs). Most proteomic approaches...

Proteomics of loosely bound cell wall proteins of Arabidopsis thaliana cell suspension cultures: a critical analysis. (2003)

Borderies, Gisèle, Jamet, Elisabeth, Lafitte, Claude, Rossignol, Michel, Jauneau, Alain, Boudart, Georges, ...

The complete sequencing of the Arabidopsis thaliana genome allows the use of the recently developed mass spectrometry techniques to identify the cell wall proteins (CWPs). Most proteomic approaches...

Is the LIM-domain Protein HaWLIM1 Associated with Cortical Microtubules in Sunflower Protoplasts? (2003)

Brière, Christian, Bordel, Anne-Claire, Barthou, Henri, Jauneau, Alain, Steinmetz, André, Alibert, Gilbert, ...

Flowering plants express several LIM-domain proteins related to the animal cystein-rich proteins. The expression of sunflower LIM genes was followed by RTPCR in cultured sunflower protoplasts. A...

Is the LIM-domain Protein HaWLIM1 Associated with Cortical Microtubules in Sunflower Protoplasts? (2003)

Brière, Christian, Bordel, Anne-Claire, Barthou, Henri, Jauneau, Alain, Steinmetz, André, Alibert, Gilbert, ...

Flowering plants express several LIM-domain proteins related to the animal cystein-rich proteins. The expression of sunflower LIM genes was followed by RT-PCR in cultured sunflower protoplasts. A...

Laccase Down-Regulation Causes Alterations in Phenolic Metabolism and Cell Wall Structure in Poplar1

Ranocha, Philippe, Chabannes, Matthieu, Chamayou, Simon, Danoun, Saïda, Jauneau, Alain, Boudet, Alain-M., ...

Laccases are encoded by multigene families in plants. Previously, we reported the cloning and characterization of five divergent laccase genes from poplar (Populus trichocarpa) xylem. To investigate...

Down-Regulation of Caffeic Acid O-Methyltransferase in Maize Revisited Using a Transgenic Approach1

Piquemal, Joel, Chamayou, Simon, Nadaud, Isabelle, Beckert, Michel, Barrière, Yves, Mila, Isabelle, ...

Transgenic maize (Zea mays) plants were generated with a construct harboring a maize caffeic acid O-methyltransferase (COMT) cDNA in the antisense (AS) orientation under the control of the maize Adh1...

Elicitor Activity of a Fungal Endopolygalacturonase in Tobacco Requires a Functional Catalytic Site and Cell Wall Localization

Boudart, Georges, Charpentier, Myriam, Lafitte, Claude, Martinez, Yves, Jauneau, Alain, Gaulin, Elodie, ...

CLPG1, an endopolygalacturonase (endoPG) gene of Colletotrichum lindemuthianum, was transferred to tobacco (Nicotiana tabacum) leaves by using the Agrobacterium tumefaciens transient delivery system....

Root Factors Induce Mitochondrial-Related Gene Expression and Fungal Respiration during the Developmental Switch from Asymbiosis to Presymbiosis in the Arbuscular Mycorrhizal Fungus Gigaspora rosea1

Tamasloukht, M'Barek, Séjalon-Delmas, Nathalie, Kluever, Astrid, Jauneau, Alain, Roux, Christophe, Bécard, Guillaume, ...

During spore germination, arbuscular mycorrhizal (AM) fungi show limited hyphal development in the absence of a host plant (asymbiotic). In the presence of root exudates, they switch to a new...

Strigolactones Stimulate Arbuscular Mycorrhizal Fungi by Activating Mitochondria

Besserer, Arnaud, Puech-Pagès, Virginie, Kiefer, Patrick, Gomez-Roldan, Victoria, Jauneau, Alain, Roy, Sébastien, ...

The association of arbuscular mycorrhizal (AM) fungi with plant roots is the oldest and ecologically most important symbiotic relationship between higher plants and microorganisms, yet the mechanism...

Laccase Down-Regulation Causes Alterations in Phenolic Metabolism and Cell Wall Structure in Poplar1

Ranocha, Philippe, Chabannes, Matthieu, Chamayou, Simon, Danoun, Saïda, Jauneau, Alain, Boudet, Alain-M., ...

Laccases are encoded by multigene families in plants. Previously, we reported the cloning and characterization of five divergent laccase genes from poplar (Populus trichocarpa) xylem. To investigate...

Down-Regulation of Caffeic Acid O-Methyltransferase in Maize Revisited Using a Transgenic Approach1

Piquemal, Joel, Chamayou, Simon, Nadaud, Isabelle, Beckert, Michel, Barrière, Yves, Mila, Isabelle, ...

Transgenic maize (Zea mays) plants were generated with a construct harboring a maize caffeic acid O-methyltransferase (COMT) cDNA in the antisense (AS) orientation under the control of the maize Adh1...

Elicitor Activity of a Fungal Endopolygalacturonase in Tobacco Requires a Functional Catalytic Site and Cell Wall Localization

Boudart, Georges, Charpentier, Myriam, Lafitte, Claude, Martinez, Yves, Jauneau, Alain, Gaulin, Elodie, ...

CLPG1, an endopolygalacturonase (endoPG) gene of Colletotrichum lindemuthianum, was transferred to tobacco (Nicotiana tabacum) leaves by using the Agrobacterium tumefaciens transient delivery system....

Root Factors Induce Mitochondrial-Related Gene Expression and Fungal Respiration during the Developmental Switch from Asymbiosis to Presymbiosis in the Arbuscular Mycorrhizal Fungus Gigaspora rosea1

Tamasloukht, M'Barek, Séjalon-Delmas, Nathalie, Kluever, Astrid, Jauneau, Alain, Roux, Christophe, Bécard, Guillaume, ...

During spore germination, arbuscular mycorrhizal (AM) fungi show limited hyphal development in the absence of a host plant (asymbiotic). In the presence of root exudates, they switch to a new...

Strigolactones Stimulate Arbuscular Mycorrhizal Fungi by Activating Mitochondria

Besserer, Arnaud, Puech-Pagès, Virginie, Kiefer, Patrick, Gomez-Roldan, Victoria, Jauneau, Alain, Roy, Sébastien, ...

The association of arbuscular mycorrhizal (AM) fungi with plant roots is the oldest and ecologically most important symbiotic relationship between higher plants and microorganisms, yet the mechanism...

Galactoglucomannans Increase Cell Population Density and Alter the Protoxylem/Metaxylem Tracheary Element Ratio in Xylogenic Cultures of Zinnia1

Beňová-Kákošová, Anna, Digonnet, Catherine, Goubet, Florence, Ranocha, Philippe, Jauneau, Alain, Pesquet, Edouard, ...

Xylogenic cultures of zinnia (Zinnia elegans) provide a unique opportunity to study signaling pathways of tracheary element (TE) differentiation. In vitro TEs differentiate into either protoxylem...

The Liverwort Marchantia polymorpha Expresses Orthologs of the Fungal Agaricus bisporus Agglutinin Family1[W][OA]

Peumans, Willy J., Fouquaert, Elke, Jauneau, Alain, Rougé, Pierre, Lannoo, Nausicaä, Hamada, Hiroki, ...

A lectin different from the previously described mannose-binding agglutinins has been isolated from the liverwort Marchantia polymorpha. Biochemical characterization of the purified lectin combined...

AP2-ERF Transcription Factors Mediate Nod Factor–Dependent Mt ENOD11 Activation in Root Hairs via a Novel cis-Regulatory Motif[W]

Andriankaja, Andry, Boisson-Dernier, Aurélien, Frances, Lisa, Sauviac, Laurent, Jauneau, Alain, Barker, David G., ...

Rhizobium Nod factors (NFs) are specific lipochitooligosaccharides that activate host legume signaling pathways essential for initiating the nitrogen-fixing symbiotic association. This study...

The RPG gene of Medicago truncatula controls Rhizobium-directed polar growth during infection

Arrighi, Jean-François, Godfroy, Olivier, De Billy, Françoise, Saurat, Olivier, Jauneau, Alain, Gough, Clare

Rhizobia can infect roots of host legume plants and induce new organs called nodules, in which they fix atmospheric nitrogen. Infection generally starts with root hair curling, then proceeds inside...

Cell Wall Modifications in Arabidopsis Plants with Altered α-l-Arabinofuranosidase Activity[C][W]

Chávez Montes, Ricardo A., Ranocha, Philippe, Martinez, Yves, Minic, Zoran, Jouanin, Lise, Marquis, Mélanie, ...

Although cell wall remodeling is an essential feature of plant growth and development, the underlying molecular mechanisms are poorly understood. This work describes the characterization of...

Mechanism of Infection Thread Elongation in Root Hairs of Medicago truncatula and Dynamic Interplay with Associated Rhizobial Colonization1[W][OA]

Fournier, Joëlle, Timmers, Antonius C.J., Sieberer, Björn J., Jauneau, Alain, Chabaud, Mireille, Barker, David G.

In temperate legumes, endosymbiotic nitrogen-fixing rhizobia gain access to inner root tissues via a specialized transcellular apoplastic compartment known as the infection thread (IT). To study IT...

RD19, an Arabidopsis Cysteine Protease Required for RRS1-R–Mediated Resistance, Is Relocalized to the Nucleus by the Ralstonia solanacearum PopP2 Effector[W]

Bernoux, Maud, Timmers, Ton, Jauneau, Alain, Brière, Christian, Marco, Yves, ...

Bacterial wilt, a disease impacting cultivated crops worldwide, is caused by the pathogenic bacterium Ralstonia solanacearum. PopP2 (for Pseudomonas outer protein P2) is an R. solanacearum type III...

Dissection of Bacterial Wilt on Medicago truncatula Revealed Two Type III Secretion System Effectors Acting on Root Infection Process and Disease Development[C][W][OA]

Turner, Marie, Jauneau, Alain, Genin, Stéphane, Tavella, Marie-José, Vailleau, Fabienne, Gentzbittel, Laurent, ...

Ralstonia solanacearum is the causal agent of the devastating bacterial wilt disease, which colonizes susceptible Medicago truncatula via the intact root tip. Infection involves four steps:...

GR24, a Synthetic Analog of Strigolactones, Stimulates the Mitosis and Growth of the Arbuscular Mycorrhizal Fungus Gigaspora rosea by Boosting Its Energy Metabolism[C][W]

Besserer, Arnaud, Bécard, Guillaume, Jauneau, Alain, Roux, Christophe, Séjalon-Delmas, Nathalie

Arbuscular mycorrhizal (AM) fungi are obligate biotrophs that participate in a highly beneficial root symbiosis with 80% of land plants. Strigolactones are trace molecules in plant root exudates that...