Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 14 of 14 for “"Sugar transporters"”.
-
Functional and evolutionary analysis of sugar transporters in Kluyveromyces marxianus
… with some strains being able to utilise the sugar better than others. To understand the genetic basis that accounts for these differences, a detailed analysis of lactose utilisation was performed. The K. marxianus genome was found to encode four copies of the lactose permease (LAC12) gene, …
-
Characterization and engineering of sugar transporters in the yeast Kluyveromyces marxianus for biotechnological applications
… requires the simultaneous consumption of all the sugars present in this raw material, hexoses and pentoses. This represents a key bottleneck because of the low number of specific pentose transporters identified and the slow rate of pentose uptake into the yeast cell when glucose is present. …
-
Molecular cloning, immunolocalization, and transgenic expression in yeast and tobacco of three cDNAs that encode sugar transporters in sugar beet
Sugar transporter genes from sugar beet have been cloned as a first step in understanding their contribution to assimilate partitioning. Two cloning strategies were attempted. One was functional complementation of a yeast mutant with a sugar beet cDNA library constructed in a yeast expression …
-
Discovery and characterization of pentose-specific transporters in Saccharomyces cerevisiae
… feedstock. Unfortunately, pentose sugars, which make up to 30% of lignocellulose, cannot be utilized by S. cerevisiae. Pentoses can only enter yeast cells through hexose transporters, which have two orders of magnitude lower affinities for pentose sugars. Additionally, inefficient …
-
Expression of Digestive Enzymes and Nutrient Transporters in the Intestine of Eimeria-challenged Chickens
… in expression of digestive enzymes and nutrient transporters in the intestine. The objective of this thesis was to examine the expression of digestive enzymes: APN and SI, peptide and amino acid transporters: Pept1, ASCT1, bo,+AT/rBAT, B0AT, CAT1/2, EAAT3, LAT1 and y+LAT1/2, sugar transporters: …
-
Comparative whole genome transcriptional responses of Ruminococcus albus strain 7 and 8: a case for specialization and niche differentiation
… R. albus 8 utilized more hemicellosic sugars derived from the hydrolysis of AHPCS than R. albus 7. More CAZyme genes of R. albus 8 responded to WAX than PASC, while those genes of R. albus 7 responded to more PASC than WAX. When hemicellulose in AHPCS started to decrease in the culture, …
-
Mechanistic and physiological insights into post-transcriptional regulation by small RNAs SgrS and DicF
… to a growth inhibitory stress condition called sugar-phosphate stress caused by the toxic accumulation of phosphorylated sugars. SgrS combats this stress with its RNA base pairing function by silencing translation of sugar transporters that import the stress molecules. SgrS was previously shown …
-
Transport processes in the arbuscular mycorrhizal symbiosis
… While the substrates of three potential MFS transporters are as yet unknown, two potential sugar transporters are might play a role in the carbohydrate flow towards the fungal partner. In summary, this study provides new insights into transport processes between plant and fungus in the course …
-
Target regulation and prioritization by the small RNA SgrS in Escherichia coli
… of ptsG and manXYZ mRNAs, which encode sugar transporters, and activates translation of yigL mRNA, encoding a sugar phosphatase. In this study, transcriptomic analyses along with genetics and biochemistry defined four new direct targets of E. coli SgrS. These new target mRNAs, asd, adiY, …
-
REGULATION OF GLYCOSYLATION IN MAMMALIAN CELL LINES: INSIGHTS FROM STRUCTURAL GLYCOMICS, ANALYSIS OF GLYCOSYLATION-RELATED GENES AND FUNCTIONAL RNAI SCREENS
… proteins, especially nucleotide-sugar transporters, represents a major interest in understanding the regulation of glycogene-encoded proteins and possible targets for controlling glycosylation. On the basis of a CHO glycosylation mutant of GDP-fucose transporter (GFT), a set of …
-
Drosophila as a model for the Anopheles Malpighian tubule
… Malpighian tubules contain many ion channels and transporters, they could be an effective tissue for targeting with novel pesticides to control populations of Diptera. Many of the insecticide compounds used to control insect pest species are no longer suited to their task, and so new means of …
-
Dietary and Developmental Regulation of Nutrient Transporter Gene Expression in the Small Intestine of Two Lines of Broilers
… included the peptide transporter, PepT1, 10 AA transporters (rBAT, bo,+AT, ATBo,+, CAT1, CAT2, LAT1, y+LAT1, y+LAT2, BoAT and EAAT3), four sugar transporters (SGLT1, SGLT5, GLUT5, and GLUT2), and a digestive enzyme, APN. For PepT1, Line B had greater quantities of mRNA compared with Line A (P = …
-
Developmental Regulation of the Expression of Nutrient Transporter and BrushBorder Membrane Hydrolase Genes in the Small Intestine of Piglets
… APN, and dipeptidyl peptidase IV, DPP IV), two sugar transporters (Na+-dependent glucose transporter 1, SGLT1, and facilitated glucose transporter 5, GLUT5), a peptide transporter (H+-dependent peptide transporter 1, PepT1), four amino acid transporters (excitatory amino acid carrier 1, EAAC1, …
-
The role of environment, sink capacity, and carbon translocation in determining C3 plant responses to elevated [CO2]
… attributes, including sink strength and sugar transport capacity. This thesis uses field, laboratory, and meta-analytic techniques to investigate factors that influence the responsiveness of plants to elevated [CO2], with the ultimate aim of understanding variation in and improving future …