Sucrose Accumulation
Sucrose Accumulation - Related Videos
11:00
Liquid Phase Reactor: Sucrose Inversion
0 Views •
2023
Source: Kerry M. Dooley and Michael G. Benton, Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA Both batch and continuous flow reactors are used in catalytic reactions. Packed beds, which use solid catalysts and a continuous flow, are the most common configuration. In the absence of an extensive recycle stream, such packed bed reactors are typically modeled as "plug flow". The other most common continuous reactor is a stirred tank, which is assumed to be perfectly...
03:36
Purification of Bacteriophages Using a Sucrose Density Gradient
0 Views •
2026
Source: Rustad, M., et.al. Synthesis of Infectious Bacteriophages in an E. coli-based Cell-free Expression System. J. Vis. Exp. (2017)This video demonstrates the purification of bacteriophages from a suspension containing host bacterial debris using a sucrose density gradient. It shows how the density gradient separates phages by buoyant density, enabling recovery of a visible band for resuspension and further analysis.
12:44
A General Method for Evaluating Incubation of Sucrose Craving in Rats
0 Views •
Cited by 25 •
2011
Responding for food or drug-paired cues increases over the course of a period of abstinence and this may relate to an increased susceptibility to relapse behaviors. Here we detail a procedure for evaluating this "incubation of craving" in rats that have self-administered sucrose.
03:39
Preparation of Virus-Enriched Suspension Using Stepwise Sucrose Centrifugation
0 Views •
2026
Source: Vijayraghavan, S. and Kantor, B. A Protocol for the Production of Integrase-deficient Lentiviral Vectors for CRISPR/Cas9-mediated Gene Knockout in Dividing Cells. J. Vis. Exp., (2017)This video demonstrates a two-step ultracentrifugation method using sucrose gradients and cushions to purify and concentrate viral particles from cell culture supernatant. The procedure enables separation based on buoyant density, allowing recovery of intact virus suitable for downstream applications.
08:30
Preparation of Synaptoneurosomes from Mouse Cortex using a Discontinuous Percoll-Sucrose Density Gradient
0 Views •
Cited by 43 •
2011
A method to prepare translationally active, intact synaptoneurosomes (SNs) from mouse brain cortex is described. The method uses a discontinuous Percoll-sucrose density gradient allowing for the quick preparation of active SNs.
FAQs
Source tissues contribute carbon through photosynthetic production, while sink tissues receive and use or store imported sucrose. Accumulation therefore reflects coordinated control of production, phloem loading, transport, cellular import, and metabolic breakdown. Genetic differences affecting any of these steps can shift carbon partitioning between tissues, helping explain why plants vary in sugar concentration and related traits.
These enzymes influence sucrose concentration at different points in carbon metabolism. Sucrose-phosphate synthase contributes to sucrose formation, whereas sucrose synthase and invertases participate in sucrose breakdown or utilization. Their combined activity helps determine whether imported carbon remains as sucrose or is metabolically processed, making their genes important targets for studying variation in accumulation.
A single gene rarely determines sugar content independently because accumulation depends on several connected processes. Regulatory networks coordinate genes involved in production, transport, import, and breakdown, linking activity across source and sink tissues. Studying these networks can reveal how inherited differences alter carbon partitioning and produce distinct sucrose concentrations among plants.
Researchers can compare plants that differ in sugar content and examine the genes and regulatory networks controlling photosynthetic production, transport, cellular import, and metabolic breakdown. Enzymes such as sucrose-phosphate synthase, sucrose synthase, and invertases provide biologically relevant points of comparison. Connecting genetic variation with concentration differences helps identify control points associated with carbon partitioning.
Genetic information about sucrose accumulation can guide selection for traits such as increased sugar content, improved yield, and altered carbon partitioning. Breeding efforts can focus on naturally occurring differences in genes or regulatory networks that influence source and sink processes. This approach connects molecular understanding with crop improvement goals rather than treating sugar concentration as an isolated trait.
Biotechnology can use knowledge of the genes and regulatory networks controlling sucrose production, transport, import, and breakdown to modify carbon allocation. Such work may support efforts to improve sweetness, yield, or stress responses in crops. The relevant outcomes depend on how genetic changes influence the coordinated behavior of source tissues, sink tissues, and sucrose-metabolizing enzymes.