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INRA
24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

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VERNOUD Vanessa

VERNOUD Vanessa
Pôle : GEAPSI
Equipe : Remplissage de la graine, remobilisation NS, et stress abiotiques de fin de cycle
Courriel : vanessa.vernoud@inrae.fr
Tel : 03.80.69.32.54

Curriculum vitae

Diplômes:
2011: Habilitation à Diriger des Recherches (HDR) en Sciences de la Vie, ENS-Lyon & Université de Lyon.
2000: Doctorat en Biologie Cellulaire et Moléculaire Végétale, Université Paul Sabatier, Toulouse.
Depuis septembre 2011: Chargée de Recherche INRA, UMR1347 Agroécologie, Dijon.
2003-2011: Chargée de recherche INRA, UMR5667 Laboratoire de Reproduction et Développement des Plantes, ENS-Lyon.
2000-2003: Stage post-doctoral, University of California, Riverside, USA. Laboratoire de Zhenbiao Yang.
1995-1999: Stage doctoral, UMR215 Laboratoire des Interaction Plantes-microorganismes, Castanet-Tolosan.

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Activités de Recherche

Dans l’équipe FILEAS, j’étudie les processus moléculaires qui contrôlent le développement et la qualité des graines de légumineuses, notamment chez le pois, incluant ceux impliqués dans la remobilisation des nutriments des organes sources vers les graines. Je m’intéresse à l’effet du stress hydrique sur ces processus, et en collaboration avec Karine Gallardo nous étudions l’importance de la nutrition soufrée pour la réponse du pois au stress hydrique et l’élaboration de la qualité des graines (Thèse C. Henriet).
Je m’intéresse également à la qualité organoleptique des graines de légumineuses, en étudiant les processus moléculaires impliqués dans l’accumulation des molécules sources de « off-flavour » (amertume, astringence, goût végétal, …) comme les saponines ou encore les composés organiques volatiles issus de l’oxydation des acides gras par des lipoxygénases.
L’ensemble de nos travaux visent à optimiser la qualité de la graine (taille, composition protéique, « off-flavour ») et à stabiliser cette qualité sous conditions environnementales fluctuantes. Pour cela nous développons des approches de biologie intégrative basées sur l’intégration de données « omiques »,  et nous l’exploitons la variabilité génétique naturelle (GWAS) ou induite (population de mutants TILLING de pois),  en interaction avec l’équipe ECP de Judith Burstin.

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Activités d'Enseignement

Intervention dans le master B2IPME « Biologie Intégrative des Interactions Plante Microbe Environnement », Dijon.

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Mots Clés

Légumineuses, Stress abiotiques, Graine, Taille, Qualité, Omiques.

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Publications

Couchoud M., Salon C., Girodet S., Jeudy C., Vernoud V* and Prudent M*. (2020). Pea efficiency of post drought recovery relies on the strategy to fine-tune nitrogen nutrition. Front.Plant Sci. Vol 11, art. 204. doi: 10.3389/fpls.2020.00            *co-corresponding authors
Couchoud M., Der C., Girodet S., Vernoud V., Prudent M., Leborgne-Castel N. (2019). Drought stress stimulates endocytosis and modifies membrane lipid order of rhizodermal cells of Medicago truncatula in a genotype-dependent manner. BMC Plant Biol. Vol 19, art. 221. doi: 10.1186/s12870-019-1814-y.
Henriet C., Aimé D., Terezol M., Kilandamoko A., Rossin N., Combes-Soia L., Labas V., Serre R.-F., Prudent M., Kreplak J., Vernoud V*., Gallardo K*. (2019). Water stress combined with Sulfur deficiency in pea affects yield components but mitigates the effect of deficiency on seed globulin composition. J. Exp. Bot. 70:4287-4303.                *co-corresponding authors
Jeudy C., Adrian M., Baussard C., Bernard C., Bernaud E., Bourion V., Busset H., Cabrera Bosquet L., Cointault F., Han S., Lamboeuf M., Moreau D., Pivato B., Prudent M., Trouvelot S., Truong Cellier H.N., Vernoud V., Voisin A.-S., Wipf D., Salon C. (2016). RhizoTubes as a new tool for high throughput imaging of plant root development and architecture: test, comparison with pot grown plants and validation. Plant Methods. 12:art.31 (000018p.).
Prudent M., Vernoud V., Girodet S., Salon C. (2016). How nitrogen fixation is modulated in response to different water availability levels and during recovery: A structural and functional study at the whole plant level. Plant Soil. 399:1-12.
Noguero M., Le Signor C., Vernoud V., Bandyopadhyay K., Sanchez M., Fu C., Torres-Jerez I., Wen J., Mysore K.S., Gallardo K., Udvardi M., Thompson R., Verdier J. (2015). DASH transcription factor impacts Medicago truncatula seed size by its action on embryo morphogenesis and auxin homeostasis. Plant J. 81:453-466.
Klein-Cosson C., Chambrier P., Rogowsky P.M., Vernoud V. (HU 2015). Regulation of a maize HD–ZIP IV transcription factor by a non-conventional RDR2-dependent small RNA. Plant J. 81:747-758.
Gallardo K., Courty P.-E., Le Signor C., Wipf D., Vernoud V. (2014). Sulfate transporters in the plant's response to drought and salinity: regulation and possible functions. Front. Plant Sci. 5:art 580 (00007p.).

Smykal P., Vernoud V., Blair M.W., Soukup A., Thompson R.D. (2014). The role of the testa during development and in establishment of dormancy of the legume seed. Front. Plant Sci. 5:art 351 (000019p.).
D'Erfurth I., Le Signor C., Aubert G., Sanchez M., Vernoud V., Darchy B., Lherminier J., Bourion V., Bouteiller N., Bendahmane A., Buitink J., Prosperi J.M., Thompson R., Burstin J., Gallardo K. (2012). A role for an endosperm-localized subtilase in the control of seed size in legumes. New Phytol. 196:738-751.
Wang CJ, Nan GL, Kelliher T, Timofejeva L, Vernoud V, Golubovskaya IN, Harper L, Egger R, Walbot V, Cande WZ. (2012) Maize multiple archesporial cells 1 (mac1), an ortholog of rice TDL1A, modulates cell proliferation and identity in early anther development.  Development. 139(14):2594-2603.
Sosso D, Mbelo S, Vernoud V, Gendrot G, Dedieu A, Chambrier P, Dauzat M, Heurtevin L, Guyon V, Takenaka M, Rogowsky PM (2012) PPR2263, a DYW-Subgroup Pentatricopeptide repeat protein, is required for mitochondrial nad5 and cob transcript editing, mitochondrion biogenesis, and maize growth. Plant Cell. 24(2):676-691.
Javelle M, Klein-Cosson C, Vernoud V, Boltz V, Maher C, Timmermans M, Depège-Fargeix N, Rogowsky PM (2011) Genome-wide characterization of the HD-ZIP IV transcription factor family in maize: preferential expression in the epidermis.  Plant Physiol. 157(2):790-803.
Pouvreau B, Baud S, Vernoud V, Morin V, Py C, Gendrot G, Pichon JP, Rouster J, Paul W, Rogowsky PM (2011) Duplicate maize Wrinkled1 transcription factors activate target genes involved in seed oil biosynthesis. Plant Physiol. 156(2):674-686.
Javelle M, Vernoud V, Rogowsky PM, Ingram GC (2011). Epidermis: the formation and functions of a fundamental plant tissue. New Phytol. 189(1):17-39.
Depège-Fargeix N, Javelle M, Chambrier P, Frangne N, Gerentes D, Perez P, Rogowsky PM, Vernoud V. (2011) Functional characterization of the HD-ZIP IV transcription factor OCL1 from maize. J Exp Bot. 62(1):293-305.
Javelle M, Vernoud V, Depège-Fargeix N, Arnould C, Oursel D, Domergue F, Sarda X, Rogowsky PM (2010) Overexpression of the epidermis-specific homeodomain-leucine zipper IV transcription factor Outer Cell Layer1 in maize identifies target genes involved in lipid metabolism and cuticle biosynthesis. Plant Physiol. 154(1):273-86.
Vernoud V,* Laigle G*, Rozier F, Meeley RB, Perez P, Rogowsky PM (2009). The HD-ZIP IV transcription factor OCL4 is necessary for trichome patterning and anther development in maize.  Plant J. 59(6):883-894. * co-authors
Hwang JU*, Vernoud V*, Szumlanski A, Nielsen E, Yang Z (2008). A tip-localized RhoGAP controls cell polarity by globally inhibiting Rho GTPase at the cell apex. Curr Biol. 23;18 (24):1907-1916. * co-authors
Khaled AS, Vernoud V, Ingram GC, Perez P, Sarda X, Rogowsky PM (2005) Engrailed-ZmOCL1 fusions cause a transient reduction of kernel size in maize. Plant Mol Biol. 58(1):123-139
Gu Y, Fu Y, Dowd P, Li S, Vernoud V, Gilroy S, Yang Z. (2005) A Rho family GTPase controls actin dynamics and tip growth via two counteracting downstream pathways in pollen tubes. Cell Biol. 169(1):127-38.
Vernoud V, Horton AC, Yang Z, Nielsen E (2003). Analysis of the small GTPase gene superfamily of Arabidopsis. Plant Physiol. 131(3):1191-208.
Gu Y, Vernoud V, Fu Y, Yang Z. (2003) ROP GTPase regulation of pollen tube growth through the dynamics of tip-localized F-actin. J Exp Bot. 54(380):93-101.
Journet EP, El-Gachtouli N, Vernoud V, de Billy F, Pichon M, Dedieu A, Arnould C, Morandi D, Barker DG, Gianinazzi-Pearson V (2001) Medicago truncatula ENOD11: a novel RPRP-encoding early nodulin gene expressed during mycorrhization in arbuscule-containing cells. Mol Plant Microbe Interact. 14(6):737-748.
Vernoud V, Journet E-P, Barker DG (1999). MtENOD20, a Nod factor-inducible molecular marker for root cortical cell activation. Mol Plant Microbe Interact. 12 (7):604-614.

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Principaux contrats

ANR Pea-Value (2019-2023). Optimizing the protein value of pea seeds. Coordination : Agroécologie, INRAE, Dijon.

Pré-maturation INRA FABFEL (2019-2021). Fabacea Bitter Flavour Elimination. Coordination: Agroécologie, INRAE, Dijon. FUI LEG’UP (2015-2020).

Développement d’ingrédients et de produits de seconde transformation innovants utilisant des fractions d’intérêt issues des légumineuses à graines. Coordination : Dijon Céréale.

ANR REGULEG (2015-2020). Identification des régulateurs participant à la plasticité d'adaptation des graines de légumineuses aux changements environnementaux. Coordination: IRHS, INRAE, Angers.