Plant BiFC Co-localization Analysis Service
BiFC Signal Localization Analysis
CD BioSciences provides plant BiFC co-localization analysis services to evaluate where reconstituted BiFC fluorescence appears relative to cellular markers or plant cell structures.
This service is suitable when interaction-associated fluorescence needs to be interpreted together with nuclear, membrane, organelle, plasmodesmata-associated, or other marker signals.
Service Overview
BiFC co-localization analysis combines the BiFC fluorescence channel with marker channels and bright field or DIC images. The goal is to describe the spatial distribution of the BiFC signal and assess whether it overlaps with a selected marker under the imaging conditions.
Figure 1. BiFC signal interpretation with marker co-localization channels.
Marker and Channel Design
| Marker Type | Typical Use |
|---|---|
| Nuclear marker | Evaluates whether BiFC signal is nuclear or enriched around nuclear compartments. |
| Plasma membrane or peripheral marker | Supports interpretation of membrane-associated or peripheral signals. |
| Organelle marker | Assesses overlap with ER, Golgi, mitochondria, chloroplast, or other organelle markers. |
| Plasmodesmata-related marker | Helps interpret punctate peripheral signals associated with intercellular connection sites. |
| Bright field or DIC | Provides cell morphology and field context for merged-image interpretation. |
Localization Patterns
Figure 2. Common BiFC signal distribution patterns in plant cells.
Signal enriched in or around the nucleus, interpreted with a nuclear marker when possible.
Diffuse or uneven cytoplasmic signal that should be distinguished from background fluorescence.
Signal near cell boundaries, requiring careful separation from general peripheral fluorescence.
Discrete spots that may require marker co-expression and multiple fields for interpretation.
Interpretation Notes
Co-localization in BiFC images is usually interpreted qualitatively or semi-quantitatively depending on image quality, marker behavior, and experimental design. Apparent overlap should be interpreted with channel separation, bleed-through risk, expression level, background controls, and imaging settings in mind.
Marker overlap supports localization interpretation, but it does not by itself establish direct physical interaction or interaction kinetics.
Sample and Information Requirements
- BiFC construct information and candidate pair design
- Desired localization marker or cellular structure
- Marker plasmid information, if supplied
- Expected fluorescence channels
- Plant expression system and timepoints
- Control group design
- Previous localization information, if available
- Specific interpretation question
Deliverables
- Original BiFC and marker channel images
- Bright field or DIC images
- Merged representative images
- Signal distribution summary
- Marker overlap interpretation notes
- Final report with control group context
Related Services
For BiFC co-localization analysis, please contact us with the BiFC pair, marker requirement, and imaging channel plan.
For research use only, not for clinical use.