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Registros recuperados: 5
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Sexual reproduction in Populus. I. Some physiological and biochemical events of the progamic phase Inra
Villar, M.; Gaget, M.; Dumas, C..
Tipo: Journal Article Palavras-chave: REPRODUCTION SEXUEE; HYBRIDATION INTERSPECIFIQUE; INCOMPATIBILITE.
Ano: 1989 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB9000029062016576&uri=/notices/prodinra1/2007/07/
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Sexual reproduction in Populus. II. Information molecules of the pollen grain Inra
Gaget, M.; Villar, M.; Kerhoas, C.; Dumas, C..
Tipo: Journal Article Palavras-chave: POPULUS DELTOIDES; REPRODUCTION SEXUEE; HYBRIDATION INTERSPECIFIQUE; INCOMPATIBILITE; GLYCOPROTEINE.
Ano: 1989 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB9000029063016577&uri=/notices/prodinra1/2007/07/
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Structural insights into the molecular mechanisms of cauliflower mosaic virus transmission by its insect vector Inra
Hoh, F.; Uzest, M.; Drucker, M.; Plisson-Chastang, C.; Bron, P.; Blanc, S.; Dumas, C..
Cauliflower mosaic virus (CaMV) is transmitted from plant to plant through a seemingly simple interaction with insect vectors. This process involves an aphid receptor and two viral proteins, P2 and P3. P2 binds to both the aphid receptor and P3, itself tightly associated with the virus particle, with the ensemble forming a transmissible viral complex. Here, we describe the conformations of both unliganded CaMV P3 protein and its virion-associated form. X-ray crystallography revealed that the N-terminal domain of unliganded P3 is a tetrameric parallel coiled coil with a unique organization showing two successive four-stranded subdomains with opposite supercoiling handedness stabilized by a ring of interchain disulfide bridges. A structural model of...
Tipo: Journal Article Palavras-chave: CAULIFLOWER MOSAIC VIRUS.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010d7662b0d&uri=/notices/prodinra1/2010/08/
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Structure of a liganded type 2 wheat non-specific lipid transfer protein and the molecular basis of lipid binding Inra
Hoh, F.; Pons, J.-L.; Gautier, M.F.; De Lamotte, F.; Dumas, C..
In plants, a family of ubiquitous proteins named non-specific lipid-transfer proteins (ns-LTPs) facilitates the transfer of fatty acids, phospholipids and steroids between membranes. Recent data suggest that these secreted proteins play a key role in the formation of cuticular wax layers and in defence mechanisms against pathogens. In this study, X-ray crystallography has been used to examine the structural details of the interaction between a wheat type 2 ns-LTP and a lipid, l-­α-­palmitoyl-phosphatidyl glycerol. This crystal structure was solved ab initio at 1.12 Å resolution by direct methods. The typical α-­helical bundle fold of this protein is maintained by four disulfide bridges and delineates two hydrophobic cavities. The inner surface of the main...
Tipo: Journal Article Palavras-chave: PROTEINE DE TRANSFERT DES LIPIDES; LPT; STRUCTURE TRIDIMENSIONNELLE; CUTICULE NS-LTP2; LIPID-TRANSFER PROTEIN; LIPID BINDING.
Ano: 2005 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200711dfadf3&uri=/notices/prodinra1/2009/03/
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The route of the pollen tube from stigma to ovule in Populus nigra : a new look Inra
Villar, M.; Gaget, M.; Dumas, C..
Nous avons examiné les principales étapes de la reproduction sexuée chez le Peuplier noir (Populus nigra). Cette étude présente le cheminement du tube pollinique de P. nigra depuis la surface stigmatique jusqu’au micropyle ovulaire (fig. 1 et fig. 4 à 7). Sa progression a pu être observée par la technique classique de visualisation des tubes polliniques par le Bleu d’Aniline (méthode ABF) (fig. 5 et 7). L’utilisation du microscope électronique à balayage couplé à un système cryogénique EMSCOPE SP 2000 a permis des observations complémentaires originales sur le devenir du tube pollinique après pénétration dans la cavité ovarienne (fig. 6).
Tipo: Journal Article Palavras-chave: STIGMATE.
Ano: 1987 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB8828527008335&uri=/notices/prodinra1/2007/07/
Registros recuperados: 5
Primeira ... 1 ... Última
 

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