Ion transport and adaptation to environment in cereals
Group leader: Anne-Aliénor Véry
Senior Scientist CNRS
rice, wheat, K+, Na+, salt stress, drought, electrophysiology
The team investigates the role of transporters and ion channels in the mineral nutrition of the plant and its adaptation to abiotic stresses: K+ deficiency, salt or water stress or soil contamination with toxic monovalent cations like 137Cs+ in relation with Fukushima accident (collaboration with Japanese teams and CEA ).
The plants studied are mainly cereals (rice , barley, wheat ), rice being selected as a model species.
Targeted transport systems mainly belong to the family of K+ and / or Na+ HKT transporters, and families of K+ carriers or channels (KUP / HAK and Shaker).
Wang L, Yang S-Y, Guo M-Y, Huang Y-N, Sentenac H, Véry A-A✉, Su Y-H✉ (2016) The S1-S2 linker determines the distinct pH sensitivity between ZmK2.1 and KAT1. Plant J., 85(5):675-685
Charpentier M✉, Sun J, Vaz Martins T, Radhakrishnan GV, Findlay K, Soumpourou E, Thouin J, Véry A-A, Sander D, Morris RJ, Oldroyd GED✉ (2016) Nuclear-localized cyclic nucleotide-gated channels mediate symbiotic calcium oscillations. Science, 352(6289):1102-1105
Taochy C, Gaillard I, Ipotesi E, Oomen RJFJ, Leonhardt N, Zimmermann S, Peltier J-B, Szponarski W, Simonneau T, Sentenac H, Gibrat R, Boyer J-C✉ (2015) The Arabidopsisroot stele transporter NPF2.3 contributes to nitrate translocation to shoots under salt stress. Plant J., 83(3):466-479
Ben Amar S, Brini F, Sentenac H, Masmoudi K, Véry A-A✉ (2014) Functional characterization in Xenopus oocytes of Na+ transport systems from durum wheat reveals diversity among two HKT1;4 transporters. J. Exp. Bot., 65(1):213-222
Oomen RJFJ, Benito B, Sentenac H, Rodríguez-Navarro A, Talón M, Véry A-A, Domingo C✉ (2012) HKT2;2/1, a K+-permeable transporter identified in a salt tolerant rice cultivar through surveys of natural genetic polymorphism. Plant J., 71(5):750-762
Mian A*, Oomen RJFJ✉*, Isayenkov S, Sentenac H, Maathuis FJM, Véry A-A (2011) Overexpression of a Na+ and K+-permeable HKT transporter in barley improves salt tolerance. Plant J., 68(3):468-479
Former team members
Sep. 13, 2017 – Control of the accumulation of toxic cations in rice by changing carriers, architecture or anatomy root: application to a culture contaminated with Cesium-137 soil
Jul. 16, 2015 – Electrophysiological characterization of ion conductances active at the Medicago truncatula root hair plasma membrane and potentially involved in the early Nod factor signaling