Recombinant microorganisms are disclosed that produce steviol glycosides and have altered expression of one or more endogenous transporter or transcription factor genes, or that overexpress one or more heterologous transporters, leading to increased excretion of steviol glycosides of interest.

Provided are a Cryptomeridiol synthase and a coding gene thereof. Also provided are a Cryptomeridiol synthase and a coding gene, a engineered yeast containing the Cryptomeridiol coding gene, and a use of same in plant breeding and biosynthesis. The cDNA full-length sequence of the Cryptomeridiol synthase gene in Tripterygium wilfordii is obtained by means of polymerase chain reaction cloning. Then, by means of synthetic biology, the engineered yeast containing the Cryptomeridiol synthase gene is constructed to realize the production of Cryptomeridiol in the yeast.

The present application relates to a method of producing drimenol and/or drimenol derivatives by comprising contacting at least one polypeptide with farnesyl diphosphate (FPP). The method may be performed in vitro or in vivo. Also provided are amino acid sequences of polypeptides useful in the methods and nucleic acids encoding the polypeptides described. The method further provides host cells or organisms genetically modified to express the polypeptides and useful to produce drimenol and/or derivatives of drimenol.

The present invention pertains to novel modified terpene synthases and their use for a preparation method for pseudopterosin intermediates and/or pseudopterosins. The method is based on the use of a modified terpene synthase comprising at least one modified amino acid residue, which enables a terpene synthase-catalyzed increased production of pseudopterosin intermediates and/or pseudopterosins from Geranylgeranyl pyrophosphate as starting material. The new modified terpene synthase of this invention allow the production of pseudopterosin intermediates, such as Isoelisabethatriene A, Isoelisabethatriene B, Erogorgiaene, or Seco-Pseudopterosin and/or the production of pseudopterosins, such as Pseudopterosin A, in a cost-efficient, economical, and sustainable manner. Also provided are nucleic acids, encoding for the modified terpene synthases of this invention, as well as expression vectors capable of expressing said nucleic acids and host cells comprising the same.

The present disclosure provides recombinant microorganisms and methods for the production of 4-HMF, 2,4-furandimethanol, furan-2,4-dicarbaldehyde, 4-(hydroxymethyl)furoic acid, 2-formylfuran-4-carboxylate, 4-formylfuran-2-carboxylate, and/or 2,4-FDCA from a carbon source. The method provides for engineered microorganisms that express endogenous and/or exogenous nucleic acid molecules that catalyze the conversion of a carbon source into 4-HMF, 2,4-furandimethanol, furan-2,4-dicarbaldehyde, 4-(hydroxymethyl)furoic acid, 2-formylfuran-4-carboxylate, 4-formylfuran-2-carboxylate, and/or 2,4-FDCA. The disclosure further provides methods of producing polymers derived from 4-HMF, 2,4-furandimethanol, furan-2,4-dicarbaldehyde, 4-(hydroxymethyl)furoic acid, 2-formylfuran-4-carboxylate, 4-formylfuran-2-carboxylate, and/or 2,4-FDCA.

The present disclosure provides recombinant microorganisms and methods for the production of 4-HMF, 2,4-furandimethanol, furan-2,4-dicarbaldehyde, 4-(hydroxymethyl)furoic acid, 2-formylfuran-4-carboxylate, 4-formylfuran-2-carboxylate, and/or 2,4-FDCA from a carbon source. The method provides for engineered microorganisms that express endogenous and/or exogenous nucleic acid molecules that catalyze the conversion of a carbon source into 4-HMF, 2,4-furandimethanol, furan-2,4-dicarbaldehyde, 4-(hydroxymethyl)furoic acid, 2-formylfuran-4-carboxylate, 4-formylfuran-2-carboxylate, and/or 2,4-FDCA. The disclosure further provides methods of producing polymers derived from 4-HMF, 2,4-furandimethanol, furan-2,4-dicarbaldehyde, 4-(hydroxymethyl)furoic acid, 2-formylfuran-4-carboxylate, 4-formylfuran-2-carboxylate, and/or 2,4-FDCA.

The present disclosure provides recombinant microorganisms and methods for the production of 4-HMF, 2,4-furandimethanol, furan-2,4-dicarbaldehyde, 4-(hydroxymethyl)furoic acid, 2-formylfuran-4-carboxylate, 4-formylfuran-2-carboxylate, and/or 2,4-FDCA from a carbon source. The method provides for engineered microorganisms that express endogenous and/or exogenous nucleic acid molecules that catalyze the conversion of a carbon source into 4-HMF, 2,4-furandimethanol, furan-2,4-dicarbaldehyde, 4-(hydroxymethyl)furoic acid, 2-formylfuran-4-carboxylate, 4-formylfuran-2-carboxylate, and/or 2,4-FDCA. The disclosure further provides methods of producing polymers derived from 4-HMF, 2,4-furandimethanol, furan-2,4-dicarbaldehyde, 4-(hydroxymethyl)furoic acid, 2-formylfuran-4-carboxylate, 4-formylfuran-2-carboxylate, and/or 2,4-FDCA.

A plant comprising a genome having an introgression which comprises a polynucleotide sequence encoding a polypeptide having a terpene synthase activity or a transporter activity, the introgression comprising allelic variation(s) as compared to a genome of a recurrent parent of the plant, is disclosed. Organisms comprising a genome having been genetically modified to express a polypeptide having a terpene synthase activity or a transporter activity are also disclosed. Methods of modulating terpene synthesis or transport of metabolites in organisms, methods of producing plants having a terpene synthase activity of interest, having a terpene profile of interest or having a transporter activity of interest are disclosed. Methods of producing a terpene of interest are also disclosed.

Described herein is a method of producing a drimane sesquiterpene such as albicanol, drimenol and/or derivatives thereof by contacting at least one polypeptide with farnesyl diphosphate (FPP) with a polypeptide including a Haloacid dehalogenase (HAD)-like hydrolase domain and having bifunctional terpene synthase activity. The method may be performed in vitro or in vivo. Also described herein are amino acid sequences of polypeptides useful in the methods and nucleic acids encoding the polypeptides described. The described method further provides host cells or organisms genetically modified to express the polypeptides and useful to produce a drimane sesquiterpene such as albicanol, drimenol and/or derivatives thereof.

Described herein is a method of producing a drimane sesquiterpene such as albicanol, drimenol and/or derivatives thereof by contacting at least one polypeptide with farnesyl diphosphate (FPP) with a polypeptide comprising a Haloacid dehalogenase (HAD)-like hydrolase domain and having bifunctional terpene synthase activity. The method may be performed in vitro or in vivo. Also described herein are amino acid sequences of polypeptides useful in the methods and nucleic acids encoding the polypeptides described. The described method further provides host cells or organisms genetically modified to express the polypeptides and useful to produce a drimane sesquiterpene such as albicanol, drimenol and/or derivatives thereof.