NOVELTY - Fungal cell system for producing fatty acyl ethyl esters (FAEE) comprises: (a) a fungal cell, and (b) an expression vector encoding a wax synthase, where the metabolism of the fungal cell is additionally modified.    USE - The fungal cell system and compositions are used for producing FAEE. The FAEE can be used as a component in a biofuel, such as biodiesel, a lubricant, cosmetic, linoleum, printing ink, and/or a solid wax ester used for candles and/or polishes (all claimed).    ADVANTAGE - The systems and compositions can produce wax esters in a controllable and economic fashion.    DETAILED DESCRIPTION - Fungal cell system for producing fatty acyl ethyl esters (FAEE) comprises: (a) a fungal cell, and (b) an expression vector encoding a wax synthase, where the metabolism of the fungal cell is additionally modified, the modification providing for down-regulation, attenuation, deletion and/or over-expression of gene(s) selected from genes encoding enzyme(s) involved in the fungal cell's fatty acid synthesizing pathways, fatty acid consuming pathways and carbohydrate biosynthesis pathways, and/or selected from genes encoding enzyme(s) acting as wax ester transporter(s) of the fungal cell. INDEPENDENT CLAIMS are included for: (1) a composition comprising the fungal cell system, where the composition further comprises an additional component selected from buffers, stabilizers, protease-inhibiting agents, hydrolytic enzymes, saccharolytic enzymes, cell membrane- and/or cell wall-preserving compounds, and nutritional media appropriate to the cell; (2) a method for producing FAEE comprising: (a) providing the fungal cell system; and (b) adding sources of carbohydrates as an external substrate to the fungal cell system in a culture broth, where the FAEE are retrieved by extraction from the culture broth; (3) a composition comprising: (a) a fungal cell, where the metabolism is modified and possesses an increased flux towards fatty acid biosynthesis; and (b) expression vectors encoding wax synthase(s); and (4) a yeast cell having an increased metabolic flux towards fatty acid ester biosynthesis, where the yeast cell expresses a wax synthase selected from Acinetobacter baylyi ADP1, Marinobacter hydrocarbonoclasticus DSM 8798, Rhodococcus opacus PD630, Mus musculus C57BL/6 and Psychrobacter articus 273-4, in combination with over-expressing the protein acyl-CoA-binding protein (ACBP).