Abstract: The application generally relates to bioproduction of molecules of interest in microorganisms, more particularly in microalgae. In particular, the application relates to methods for increasing triacylglycerol production in micro-organisms, in particular in microalgae, using recombinant micro-organisms which have been genetically engineered to express or overexpress a mutant of a bubblegum-type acyl-CoA synthase, and uses thereof.

Abstract: The application generally relates to chloroplast targeting of nuclear-encoded proteins of interest in microalgae. Provided herein are expression cassettes comprising a nucleotide sequence encoding a chloroplast targeting peptide operably linked to a nucleotide sequence encoding a protein of interest, wherein said chloroplast targeting peptide comprises the bipartite targeting sequence of the phosphoribulokinase of Nannochloropsis gaditana (NgPRK BTS). The invention further provides vectors comprising the expression cassettes, and microalgae having stably incorporated or transiently expressed into their nuclear genomes an expression cassette described above. Methods are also provided for the production of a protein of interest in the chloroplast of a microalga, as well as methods for modulating chloroplast pathways.

Abstract: The application generally relates to chloroplast targeting of nuclear-encoded proteins of interest in microalgae. Provided herein are expression cassettes comprising a nucleotide sequence encoding a chloroplast targeting peptide operably linked to a nucleotide sequence encoding a protein of interest, wherein said chloroplast targeting peptide comprises the bipartite targeting sequence of the phosphoribulokinase of Nannochloropsis gaditana (NgPRK BTS). The invention further provides vectors comprising the expression cassettes, and microalgae having stably incorporated or transiently expressed into their nuclear genomes an expression cassette described above. Methods are also provided for the production of a protein of interest in the chloroplast of a microalga, as well as methods for modulating chloroplast pathways.

Abstract: The disclosure pertains to a method for the production of triacylglycerides (TAGs or Triacylglyerols) and fatty acids by the recombinant expression of a ?11 fatty acid desaturase in protists.

Abstract: The invention relates to a method for triggering triacylglycerols (TAG) accumulation in microalgae comprising the step of contacting a source of exogenous nitroxide (NO) with said microalgae in their growth medium.

Abstract: The invention relates to a method for accumulating triacylglycerols in microalgae by inhibiting the sterol metabolism, by incubating the microalgae with an inhibitor of sterol metabolism. The invention also relates to a method for producing fatty acids, biofuels, pharmaceutical or cosmetic compositions, and also food supplements, comprising a triacylglycerols accumulation step in microalgae according to the invention. Finally, the invention concerns the use of an inhibitor of sterol metabolism to accumulate triglycerides in microorganisms, and preferably microalgae.

Abstract: The present technology relates to a microalga that is genetically modified by inhibiting the activity of the enzyme ?0-elongase (?0-ELO), which uses palmitic acid, a saturated fatty acid, as substrate and is associated with the production of monogalactosyldiacylglycerol (MGDG). The present technology also relates to a process for culturing the microalga for increased production of triacylglycerols (TAGs) and recovery of the TAGs.

Abstract: The application generally relates to bioproduction of molecules of interest in micro-organisms, more particularly in microalgae. In particular, the application relates to methods for increasing triacylglycerol production in micro-organisms, in particular in microalgae, using recombinant micro-organisms which have been genetically engineered to produce or overproduce nitric oxide (NO) and uses thereof.

Abstract: The application generally relates to chloroplast targeting of nuclear-encoded proteins of interest in microalgae. Provided herein are expression cassettes comprising a nucleotide sequence encoding a chloroplast targeting peptide operably linked to a nucleotide sequence encoding a protein of interest, wherein said chloroplast targeting peptide comprises the bipartite targeting sequence of the phosphoribulokinase of Nannochloropsis gaditana (NgPRK BTS). The invention further provides vectors comprising the expression cassettes, and microalgae having stably incorporated or transiently expressed into their nuclear genomes an expression cassette described above. Methods are also provided for the production of a protein of interest in the chloroplast of a microalga, as well as methods for modulating chloroplast pathways.

Abstract: The invention relates to a microalga which is genetically modified by inhibiting the ?0 elongase (?0-ELO) enzyme activity, using palmitic acid, a saturated fatty acid, as a substrate, and which is associated with the production of mono-galactosyl diacylglycerol (MGDG). The invention also relates to a method for cultivating said microalga for increased triacylglycerol (TAG) production and harvesting of said TAG.

Abstract: The present application relates to an expression system for multigene overexpression in microalgae, which expression system comprises at least two nucleic acid expression cassettes, wherein each expression cassette comprises a promoter operably linked to three or more transgenes connected to one another by at least one sequence encoding a 2A peptide (i.e. a multicistronic construct). Also disclosed herein are vector systems comprising said expression systems, host cells transformed with said expression systems or comprising said vector systems, methods for producing these host cells, as well as their use for biosynthesis.

Abstract: The application generally relates to bioproduction of molecules of interest in micro- organisms, more particularly in microalgae. In particular, the application relates to methods for increasing triacylglycerol production in micro-organisms, in particular in microalgae, using recombinant micro-organisms which have been genetically engineered to produce or overproduce nitric oxide (NO) and uses thereof.

Abstract: A method and a device for determining a concentration of lipids in a microorganism such as a micro-alga by illuminating a sample containing microorganisms and acquiring a total diffraction pattern of the sample is acquired, the total diffraction pattern including a plurality of unit diffraction pattern each associated with a microorganism.

Abstract: The present invention relates to a genetically engineered algae strain in which the expression of the CGI-58 gene or homologous gene thereof is silenced. The present invention further relates to a method of triacylglycerol accumulation using said genetically engineered diatom and/or diatom strain.

Abstract: The invention relates to a method for triggering triacylglycerols (TAG) accumulation in microalgae comprising the step of contacting a source of exogenous nitroxide (NO) with said microalgae in their growth medium.

Abstract: The invention relates to a method for determining a concentration of lipids in a microorganism, in particular a micro-alga, wherein: a sample containing microorganisms is illuminated (101); and a total diffraction pattern (12) of the sample is acquired (102), the total diffraction pattern comprising a plurality of unit diffraction patterns (131; 14A; 14B) each associated with a microorganism. According to the invention, a value of a numerical indicator (In) representative of a dispersion of the light intensity in a zone of interest (13) of the total diffraction pattern is determined (104), and a concentration of lipids (Cx) in the microorganisms is deduced therefrom. The invention also relates to a device for implementing such a method.

Abstract: The invention relates to a method for accumulating triacylglycerols in microalgae by inhibiting the sterol metabolism, N by incubating the microalgae with an inhibitor of sterol metabolism. The invention also relates to a method for producing fatty acids, biofuels, pharmaceutical or cosmetic compositions, and also food supplements, comprising a triacylglycerols accumulation step in microalgae according to the invention. Finally, the invention concerns the use of an inhibitor of sterol metabolism to accumulate triglycerides in microorganisms, and preferably microalgae.

Abstract: The present invention relates to a genetically engineered algae strain in which the expression of the CGI-58 gene or homologous gene thereof is silenced. The present invention further relates to a method of triacylglycerol accumulation using said genetically engineered diatom and/or diatom strain.

Abstract: The invention relates to the use of compounds having a monogalactosyldiacylglycerol (MGDG) synthase inhibitory activity as herbicide or algaecide, and to herbicide and algaecide compositions containing at least one of these compounds.

Abstract: Novel polyspirane compounds used in the treatment of diseases involving parasites that belong to the phylum of apicomplexae, and a method for preparing the same.