Methods and expression systems are described herein that are useful for production of terpenes and terpenoids.

Embodiments provide a modified microbe capable of growing in or fermenting a solution, or lignocellulosic hydrolysate, comprising ferulic acid and/or coniferyl aldehyde. The microbe has one or more modifications to provide: (a) a decrease in copy number or expression of a BNA7 gene; (b) an increase in copy number or expression of one or more pentose phosphate pathway genes; and/or (c) localization of one or more products of the pentose phosphate pathway genes to the mitochondria or endoplasmic reticulum. Also provided is a microbe having modified expression or copy number of BNA7 and/or one or more of the pentose phosphate pathway genes. The pentose phosphate pathway genes may in certain embodiments be selected from at least one of ZWF1, TKL1, RPE1 and GND1. Also provided is a method for fermenting a substrate comprising ferulic acid and/or coniferyl aldehyde to produce a fermentation product.

Genetically modified microorganisms that have the ability to convert carbon substrates into chemical products such as 2,3-BDO; 1,4-BDO; isobutyraldehyde; isobutanol; 1-butanol; n-butanol; ethanol; fatty alcohols; and fatty acid methyl ester are disclosed. For example, genetically modified methanotrophs that are capable of generating 2,3-BDO; 1,4-BDO; isobutyraldehyde; isobutanol; 1-butanol; n-butanol; ethanol; fatty alcohols; and fatty acid methyl ester at high titers from a methane source are disclosed. Methods of making these genetically modified microorganisms and methods of using them are also disclosed. These microorganisms and methods make use of molecular switches to regulate gene expression.

Described herein are devices and methods for increasing the production of steviol glycosides, which have industrial and economic value. The steviol glycosides produced by the devices and methods disclosed herein do not require the ultra purification that is common in conventional or commercial methods and do not have a bitter aftertaste, making them better suited as flavor-enhancing additives to food, pharmaceutical, and nutritional supplement products.

The present invention belongs to the field of plant genetic engineering. Specifically, the invention relates to a method for creating novel herbicide resistant plants by base editing techniques and a method for screening endogenous gene mutation sites capable of conferring herbicide resistance in plants. The invention also relates to the use of the identified endogenous gene mutantation sites in crop breeding.

The present disclosure relates to a novel acetohydroxy acid synthase, a microorganism comprising the same, or a method for producing an L-branched-chain amino acid using the same.

The present invention discloses a bacterium and an obtaining method and application thereof. The bacterium has a property of coproducing 1,3-propanediol and D-lactic acid. Further, the bacterium is Klebsiella oxytoca, including Klebsiella oxytoca PDL-5 CCTCC M 2016185. The obtaining method of the bacterium may be to obtain the bacterium by directly screening wild bacteria that satisfy conditions from the environment or performing gene engineering modification to wild bacteria. The present invention has the advantages that the bacteria can coproduce 1,3-propanediol and D-lactic acid through fermentation, the molar conversion rate and the concentration of the two products are very high, the types of byproducts are few, the concentration is low, the product extraction process is simplified, the high-efficiency biological production of 1,3-propanediol and D-lactic acid can be realized, and the industrial application prospect is very great.

Sunscreen compositions and sunscreen active ingredients are disclosed herein which comprise at least one ketone-containing UV filter and at least one primary or secondary amine wherein at least one ketone-containing UV filter and at least one primary or secondary amine react to form an imine analog of the ketone-containing UV filter wherein the imine analog has at least one property selected from the group consisting of a) is capable of extending UV protection into a visible region equal to or greater than 400 nm, b) is water resistant, and/or c) prevents or decreases skin penetration. This imine analog may be further modified to provide a substrate capable of reacting with transglutaminase or any variant thereof and/or a lysyl oxidase to bind the sunscreen composition or sunscreen active ingredient to a target of interest. Also disclosed are cosmetic or pharmaceutical preparations comprising any of the sunscreen compositions or sunscreen ingredients along with a cosmetically or pharmaceutically acceptable carrier.

Provided herein are production systems and methods to produce a plurality of organic carbon-containing compounds from carbon dioxide, including glyceraldehyde 3-phosphate, glucose, cellulose, and starch, using stabilized enzymes in aqueous media.

A microorganism is transformed to be capable of producing guanidinoacetic acid (GAA). A method can be used for the fermentative production of GAA using such a microorganism. A corresponding method can be used for the fermentative production of creatine.