Abstract: A nucleic acid construct comprising a promoter operably linked to a nucleotide sequence coding for the precursor of Vitis vinifera miRNA 319e capable of generating an amiRNA hairpin structure that includes a complementary hypervariable sequence between 60-100% to a target sequence. A method of regulating the expression of a target sequence in a target cell comprising introducing the nucleic acid construct into a target cell, and using the construct in the post-transcriptional gene silencing of a target sequence in a constitutive and stable manner.

Abstract: A super-hydrophobic composition for layer recovering, particularly paper, in which the composition is a mixture of at least one hydrophobic agent of chromium complex and inorganic nanoparticles selected from a group consisting of hydrophobic nanoparticles, hydrophilic nanoparticles and combinations thereof, with an average particle size of 1 nm to 35 nm.

Abstract: The invention relates to a thermo-photo-bioreactor and to a method for the culture and mass micropropagation of Deschampsia antarctica in vitro. The invention comprises a discontinuous immersion reactor for biomass micropropagation, including means for incorporating chemical inducing agents (salt, metals, organic compounds, etc.) and internal luminescence or illumination means (UV radiation and temperature) for supplying said chemical inducers and/or illumination during any growth phase of the vegetable or plant material (multiplication or propagation and/or maintenance). The invention is advantageous in that it can be used to produce large quantities of biomass of the aforementioned Antarctic species, while providing conditions suitable for said plant to produce metabolites that can be used for human health and personal care.