Compositions and methods related to silicon transport

Details Compositions and methods related to silicon transport Compositions and methods related to silicon transport

C - Chemistry, Metallurgy

12

N

C12N 15/29 (2006.01) A01H 5/00 (2006.01) A01H 5/10 (2006.01) C07K 14/415 (2006.01) C12N 5/10 (2006.01) C12N 15/09 (2006.01) C12N 15/82 (2006.01)

Patent

CA 2718850

Based on our identification of silicon influx and efflux transporter genes in plants known to take up silicon effi-ciently, including wheat, horsetail, oat, sorghum, and barley, the present invention features polynucleotides encoding silicon trans-porters; vectors, cells, and plants including such polynucleotides, and methods for making such plants. The invention also features silicon transporter polypeptides and fragments thereof. Plants expressing heterologous silicon transporters may exhibit both in-creased silicon uptake and increased resistance to biotic and abiotic stresses. In particular, plants such as soybean expressing sili-con transporters may exhibit increased resistance to pathogens such as rust.

Sur la base de notre identification de gènes transporteurs de silicium entrant dans et sortant de plantes connues pour absorber efficacement le silicium, comprenant le blé, la prêle, l'avoine, le sorgho et lorge, la présente invention concerne des polynucléotides codant pour des transporteurs de silicium ; des vecteurs, des cellules et des plantes comprenant de tels polynucléotides, et des procédés pour produire de telles plantes. Linvention concerne en outre des polypeptides transporteurs de silicium et des fragments de ceux-ci. Des plantes exprimant des transporteurs de silicium hétérologues peuvent présenter une absorption de silicium augmentée et une résistance augmentée aux stress biotique et abiotique. En particulier, des plantes telles que le soja exprimant des transporteurs de silicium peuvent présenter une résistance augmentée à des pathogènes tels que la rouille.

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