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Phloem, transport and signaling
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Keywords : phloème - transcriptome- signalisation - signalisation longue distance - transport longue distance - export sucres - protéines P - croissance - développement

Doctoral school affiliation : ED 145 Sciences du Végétal , Paris-Sud 11, Orsay


Contacts :

Institut Jean-Pierre Bourgin, UMR1318 INRA-AgroParisTech
Bâtiment 3
INRA Centre de Versailles-Grignon
Route de St-Cyr (RD10)
78026 Versailles Cedex France

tél : +33 (0)1 30 83 30 47 - fax : +33 (0)1 30 83 30 96

Group leader
Sylvie Dinant

Research Scientist

Françoise Vilaine
Research Scientist

Laurence Bill
Assistant Engineer

Federica De Marco
Post-Doc AgreenSkills
from 7/9/14 to 6/9/17

 

Catherine Bellini
Senior Scientist


http://www.upsc.se/cbellini.htm

Rozenn Le Hir
Research Scientis

Nelly Wolff
Assistant Engineer

 

Emily Aubry
PhD student
from 1/11/16 to 31/10/19

 


Summary :
 

microscopie electroniquePlants, as sessile organisms, are continuously exposed to a diversity of environmental signals and stresses. Plants perceive environmental factors such as temperature, light, water or nitrogen availability and set up adaptive responses such as flowering, temperature acclimation and the activation of stress responses. They also trigger rapid responses that enable them to survive extreme conditions or biotic stresses. Plants constantly sense and integrate information over both daily and seasonal scale time, and adjust their development and the allocation of resources to optimize survival. The phloem appears as a major integrator of these responses. Elucidating the mechanisms involved in the integration of the environmental factors and in the transmission of information to various organs of the plant is critical for understanding how plants adapt to particular environments and is an important question in plant science research. It is also a key for developing plant breeding strategies to maintain crop productivity in diverse agricultural systems, and in the perspective of climate changes.

The goal of Phloem Allocation, Transport and Signaling Group (PATS) is to develop approaches for functional characterization of the physiology of the phloem, with a special interest in regards to its role in plant development and adaptation to environment. The main results are thorough transcriptome analysis of the phloem, either in controlled growth conditions or in response to a plant aphid infestation. A comprehensive description of phloem sap proteome was also produced. Ongoing researches focus on the functional characterization of phloem genes involved in sugar partitioning and long distance signaling.

 


Main Results :

 


Selected Publications :

Batailler B, Lemaître T, Vilaine F, Sanchez C, Cayla T, Beneteau J, Renard D, Dinant S (2012). Soluble and filamentous proteins in Arabidopsis sieve elements. Plant Cell and Environment. 35:1258-1273. (PubMed)

Castelain M, Le Hir R, Bellini C. (2012) The non-DNA-binding bHLH transcription factor PRE3/bHLH135/ATBS1/TMO7 is involved in the regulation of light signaling pathway in Arabidopsis. Physiologia Plantarum. 45: 450-460. (PubMed)

Dinant S, Kehr J (2012) Chapter 14: Sampling and analysis of phloem sap. Series In : F. Maathuis (Eds.), Plant Mineral Nutrients: Methods and Protocols. “Methods in Molecular Biology”, published by Humana Press, USA

Dinant S, Lucas WJ (2012) Puzzling Activities Deciphered by Proteomics Studies, in: G.A. Thompson, A.J.E. van Bel (Eds.), Phloem: Molecular Cell Biology, Systemic Communication, Biotic Interactions. Wiley & Sons, Cichester, UK. Chapter 8

Dinant S, Suárez-López P (2012). Multitude of signal molecules acting long-distance via Phloem. In G. Witzany, F. Baluška (Eds), Signaling and Communication in Plants. Springer series Chapter 6: 89-121 ( pdf)

Beneteau J, Renard D, Marche L, Douville E, Lavenant L, Rahbé Y, Vilaine F, Dinant S (2010) Binding properties of the N-acetylglucosamine and high-mannose N-glycan PP2-A1 phloem lectin in Arabidopsis. Plant Physiology. 153:1345-1361. (PubMed)

Bencharki B, Boissinot S, Revollon S, Ziegler-Graff V, Erdinger M, Wiss L, Dinant S, Renard D, Beuve M , Lemaitre-Guillier C, Brault V. (2010) Phloem protein partners of Cucurbit aphid borne yellows virus: possible involvement of phloem proteins in virus transmission by aphids. Molecular Plant Microbe Interaction. 23:799-810. (Pubmed)

Dinant S, Bonnemain JL, Girousse C, Kehr J (2010) Phloem sap intricacy and interplay with aphid feeding. Comptes Rendus biologie. 333: 504-515. (PubMed)

Dinant S, Lemoine R (2010) The phloem pathway: new issues and old debates. Comptes Rendus biologie. 333: 307-319. (PubMed)

Giordanengo P, Brunissen L, Rusterucci1 C, Vincent C, van Bel A, Dinant S, Girousse C, Faucher M, Bonnemain JL (2010) Compatible plant-aphid interactions: How aphids manipulate plant responses. Comptes Rendus biologie. 333: 516-523. (PubMed)

Le Hir R, Béneteau J, Bellini C, Vilaine F, Dinant S (2008). Transcriptomics data: keys for investigating phloem functions. Trends Plant Sci,13 (6) : 273-280. (PubMed)

Dinant S, (2008). Phloème, transport interorgane et signalisation à longue distance. Comptes Rendus Biol, 331 (5) : 334-346. (PubMed)

Divol F, Vilaine F, Thibivilliers, Kusiak C, Sauge M-H, Dinant S (2007). Involvement of the xyloglucan endotransglycosylase/hydrolases encoded by celery XTH1 and Arabidopsis XTH33 in the phloem response to aphids. Plant Cell Environ 30: 187-220. (PubMed)

Divol F, Vilaine F, Thibivilliers S, Amselem J, Palauqui JC, Kusiak C, Dinant (2005). Systemic response to aphid infestation by Myzus persicae in the phloem of Apium graveolens. Plant Mol Biol. 57: 517-540. (PubMed)

Dinant S, Ripoll C, Pieper M, David C (2004). Phloem specific expression driven by wheat dwarf geminivirus V-sense promoter in transgenic dicotyledonous species. Physiol Plant. 121 : 108-116. (PubMed)

Divol F (2004). Identification de gènes exprimés dans le phloème lors d’une attaque par pucerons chez le céleri (Apium graveolens)». Thèse de doctorat. Ecole Doctorale "Sciences du Végétal: du gène à l'Ecosystème". Paris Sud-XI.

Dinant S, Clark AM, Zhu Y, Vilaine F, Palauqui JC, Kusiak C, Thompson GA (2003). Diversity of the superfamily of phloem lectins (phloem protein 2) in angiosperms. Plant Physiol, 131, 1-15. (PubMed)

Vilaine F, Palauqui JC, Amselem J, Kusiak C, Lemoine R, Dinant S (2003). Towards deciphering phloem: a transcriptome analysis of the phloem of Apium graveolens. Plant J, 36 : 67-81. (PubMed)

Revues

Dinant S. (2000). Des ponts entre les cellules végétales. Biofutur 201 : 36-41

Aaziz R., Dinant S , Epel B. (2001) Plasmodesmata and plant cytoskeleton. Trends in Plant Science 6: 326-330 (PubMed)

Brevets
2004 Utilisation de la séquence codante d’une xyloglucane endotransglycosylase dans l’amélioration de la réponse de la plante à une infestation par des iinsectes phloèmophages. Brevet Génoplante-Valor (Divol F, Vilaine F, Dinant S)

2004 Utilisation d’un promoteur inductible par les pucerons et exprimé dans les tissus vasculaires. Brevet Génoplante-Valor (Divol F, Dinant S)

2001 Non transactivable phloem specific expression driven by wheat dwarf geminivirus V-sense promoter in transgenic dicotyledonous species. Brevet INRA-CNRS (Dinant S, Ripoll C, Gronenborn B, Jouanin L).

1997 Capside LMV biosécurité pour la lutte en protection hétérologue vis-à-vis des potyvirus. Brevet INRA (Dinant S, Tourneur C, Blaise F, Albouy J, Robagli C, Chupeau Y).

 
 

 


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