Abstract: The present invention provides a nucleic acid molecule comprising: DGAT1 promoter or an active fragment thereof, the ammonium transporter promoter or an active fragment thereof, or the putative purine permease promoter or an active fragment thereof; coupled to a gene. The invention further provides a vector including the nucleic acid molecule and cells harboring the nucleic acid molecule.

Abstract: An isolated novel oil globule protein encoded by a polynucleotide sequence is provided together with a composition which includes the isolated protein. A transgenic organism transformed by a polynucleotide encoding a protein which at least partially comprises the amino acid sequence of the novel oil globule protein is also provided. The invention also provides a method for producing or enhancing the production of a carotenoid such as astaxanthin, which is an oil globule constituent.

Abstract: An isolated protein which is at least partially encoded by a polynucleotide sequence encoding a novel acyl-CoA: diacylglycerol acyltransferase 1-like gene (PtDGAT1) from the diatom Phaeodactylum tricomutum is provided together with a composition which includes the isolated protein and a transgenic organism transformed by a polynucleotide encoding same. The invention also provides a method for producing or enhancing the production of oil or triacylglycerols with high saturated fatty acids content.

Abstract: The present invention provides a protein, specifically Parietochloris incisa acetohydroxyacid synthase, and methods for producing branched-chain amino acid in a cell. The present invention further provides polypeptides and polynucleotides useful for conferring herbicide resistance in a cell or an organism. In particular, the present invention discloses a mutated acetohydroxyacid synthase which is resistant to herbicides.

Abstract: An isolated novel oil globule protein encoded by a polynucleotide sequence is provided together with a composition which includes the isolated protein. A transgenic organism transformed by a polynucleotide encoding a protein which at least partially comprises the amino acid sequence of the novel oil globule protein is also provided. The invention also provides a method for producing or enhancing the production of a carotenoid such as astaxanthin, which is an oil globule constituent.

Abstract: The present invention is primarily directed to a mutant strain of Parietochloris incisa, characterized in comprising a substantially reduced intracellular concentration of arachidonic acid (AA) together with a substantially increased intracellular concentration of dihomo-gamma-linolenic acid 20:3?6 (DGLA).

Abstract: The present invention provides a protein, specifically Parietochloris incisa acetohydroxyacid synthase, and methods for producing branched-chain amino acid in a cell. The present invention further provides polypeptides and polynucleotides useful for conferring herbicide resistance in a cell or an organism. In particular, the present invention discloses a mutated acetohydroxyacid synthase which is resistant to herbicides.

Abstract: An isolated protein which is at least partially encoded by a polynucleotide sequence encoding a novel acyl-CoA: diacylglycerol acyltransferase 1—like gene (PtDGAT1) from the diatom Phaeodactylum tricomutum is provided together with a composition which includes the isolated protein and a transgenic organism transformed by a polynucleotide encoding same. The invention also provides a method for producing or enhancing the production of oil or triacylglycerols with high saturated fatty acids content.

Abstract: It is an object of the present invention to provide a delta-5 desaturase-defective gene and uses of the gene and/or the mutant in algal transformation.

Abstract: The present invention is primarily directed to a mutant strain of Parietochloris incisa, characterized in comprising a substantially reduced intracellular concentration of arachidonic acid (AA) together with a substantially increased intracellular concentration of dihomo-gamma-linolenic acid 20:3?6 (DGLA).

Abstract: The invention provides a biocontrol agent against larvae of mosquitoes and blackflies comprising transgenic Anabaena PCC 7120 carrying a synergistic combination of the endotoxin genes CryIVA and CryIVD of Bacillus thuringiensis subsp. israelensis.

Abstract: A process for cultivating Haematococcus for the large scale production of astaxanthin-enriched Haematococcus cells comprises: (a) cultivating said Haematococcus cells under conditions suitable for optimal vegetative growth of said cells, wherein said conditions comprise growing the cells under a light intensity in the range of about 30-140 .mu.mol photons.m.sup.-2.S.sup.-1 and at a temperature of between about 15-28.degree. C.; and (b) collecting the cells grown according to (a) and cultivating them further under conditions suitable for optimal induction and accumulation of astaxanthin in said cells, wherein said conditions comprise inoculating said cells of (a) into a growth solution containing essentially a carbon source and growing said cells at a temperature of below 35.degree. C.