NOVELTY - A recombinant host cell comprising a non-native nucleic acid molecule encoding a HAP3-like polypeptide, where the recombinant host cell has increased productivity with respect to a control cell that does not include the non-native nucleic acid molecule encoding a HAP3-like polypeptide, is new.    USE - The host cell is useful for producing a bioproduct selected from food, feed, bio-fuel, bio-chemical, pharmaceutical, and medicinal product (all claimed).    ADVANTAGE - The polynucleotides encoding transcription factor proteins are overexpressed in microorganisms resulting to an increase in productivity, such as increased biomass productivity.    DETAILED DESCRIPTION - A recombinant host cell comprises a non-native nucleic acid molecule encoding a HAP3-like polypeptide that includes an amino acid sequence having greater than or equal to 65% identity to an amino acid sequence selected from SEQ ID NO. 4; amino acids 27-117 of SEQ ID NO. 8; amino acids 23-113 of SEQ ID NO. 10; amino acids 24-114 of SEQ ID NO. 12; amino acids 24-114 of SEQ ID NO. 14; amino acids 54-144 of SEQ ID NO. 16, amino acids 19-109 of SEQ ID NO. 18, amino acids 15-105 of SEQ ID NO. 20, amino acids 18-108 of SEQ ID NO. 22, amino acids 26-116 of SEQ ID NO. 24, amino acids 29-119 of SEQ ID NO. 26, amino acids 26-116 of SEQ ID NO. 28, amino acids 23-113 of SEQ ID NO. 30, amino acids 26-116 of SEQ ID NO. 32, amino acids 20-110 of SEQ ID NO. 34, amino acids 16-106 of SEQ ID NO. 36, amino acids 24-114 of SEQ ID NO. 38, amino acids 21-111 of SEQ ID NO. 40, amino acids 29-119 of SEQ ID NO. 42, amino acids 20-110 of SEQ ID NO. 44, amino acids 20-110 of SEQ ID NO. 46, amino acids 9-96 of SEQ ID NO. 50, and amino acids 16-106 of SEQ ID NO. 52; where the recombinant host cell has increased productivity with respect to a control cell that does not include the non-native nucleic acid molecule encoding a HAP3-like polypeptide. INDEPENDENT CLAIMS are:    (1) a microbial biomass comprising a recombinant host cell above;    (2) a method for producing a bioproduct by culturing a recombinant host cell above and producing a bioproduct from it;    (3) a bioproduct produced by the method of (2); and    (4) an isolated or recombinant nucleic acid molecule comprising a nucleic acid sequence encoding a polypeptide described above, or an isolated nucleic acid molecule comprising (i) a nucleic acid sequence hybridizing under high stringency conditions to any one of the polynucleotide sequences selected from ODD SEQ ID NOs. 3-19, 29-35, and 45-49, its complement, or a fragment of either, or (ii) a nucleic acid sequence exhibiting greater than or equal to 70% sequence identity to any one of the polynucleotide sequences selected from ODD SEQ ID NOs. 3-19, 29-35, and 45-49, its complement, or a fragment of either, or (iii) a nucleic acid sequence encoding a polypeptide exhibiting greater than or equal to 50% sequence identity to any one of the polypeptides selected from EVEN SEQ ID NOs. 4-20, 30-36, and 46-50, or (iv) a nucleic acid sequence that is an antisense or interfering RNA to a nucleic acid sequence according to any one of paragraphs (i)-(iii).