Harnessing precursor-directed biosynthesis with glucose derivatives to access cotton fibers with enhanced physical properties.

Cotton ovule cultures are a promising platform for exploring biofabrication of fibers with tailored properties. When the ovules' growth medium is supplemented with chemically synthesized cellulose precursors, it results in their integration into the developing fibers, thereby tailoring their end properties. Here, we report the feeding of synthetic glucosyl phosphate derivative, 6-deoxy-6-fluoro-glucose-1-phosphate (6F-Glc-1P) to cotton ovules growing , demonstrating the metabolic incorporation of 6F-Glc into the fibers with enhanced mechanical properties and moisture-retention capacity while emphasizing the role of molecular hierarchical architecture in defining functional characteristics and mechanical properties.

Microbial Biomineralization of Alkaline Earth Metal Carbonates on 3D-Printed Surfaces.

The biomineralizing bacterium has attracted considerable interest in the area of geotechnical engineering due to its ability to induce extracellular mineralization. The presented study investigated 's potential to induce the mineralization of alkali-earth metal carbonate coatings on different polymeric 3D-printed flat surfaces fabricated by different additive manufacturing methods. The use of calcium, barium, strontium, or magnesium ions as the source resulted in the formation of vaterite (CaCO), witherite (BaCO), strontianite (SrCO), and nesquehonite MgCO·3HO, respectively.

2-NBDG Uptake in ovules: exploring tissue-specific accumulation and its impact on hexokinase-mediated glycolysis regulation.

Fluorescent glucose derivatives are valuable tools as glucose analogs in plant research to explore metabolic pathways, study enzyme activity, and investigate cellular processes related to glucose metabolism and sugar transport. They allow visualization and tracking of glucose uptake, its utilization, and distribution within plant cells and tissues. This study investigates the phenotypic and metabolic impact of the exogenously fed glucose derivative, 2-(N-(7-nitrobenz-2-oxa-1,3-diazol-4-yl)amino)-2-deoxyglucose) (2-NBDG) on the fibers of (Upland cotton) ovule cultures.

Conserved Active Site Architecture Between Bacterial Cellulose and Chitin Synthases.

Glycosyltransferases (GTs) are a large and diverse group of enzymes responsible for catalyzing the formation of a glycosidic bond between a donor molecule, usually a monosaccharide, and a wide range of acceptor molecules, thus, playing critical roles in various essential biological processes. Chitin and cellulose synthases are two inverting processive integral membrane GTs, belonging to the type-2 family involved in the biosynthesis of chitin and cellulose, respectively. Herein, we report that bacterial cellulose and chitin synthases share an E-D-D-ED-QRW-TK active site common motif that is spatially co-localized.

The Late Middle Pleistocene mammalian fauna of Oumm Qatafa Cave, Judean Desert: taxonomy, taphonomy and palaeoenvironment.

The Middle Pleistocene archaeological record of the southern Levant has proven key to understanding human evolution and intercontinental faunal biogeography. Knowledge of archaeological sites of that period in the southern Levant is biased, with most Middle Pleistocene localities in the Mediterranean areas in the north, despite the mosaic of environments that mark the entire region. A key Middle Pleistocene location in the Judean Desert - on the eastern margin of the Mediterranean zone - is the site of Oumm Qatafa, excavated in the early 1900s, which yielded a faunal collection spanning an estimated time period of 600-200 kya.