Coral Cell Culture Protocol
Optimization of Coral Primary Cell Cultures
1. Objective and Research Rationale
This protocol describes the current efforts and procedures for attempting to establish primary cell cultures from the scleractinian coral Stylophora pistillata. The focus of this work is to evaluate cellular resilience and potential growth by comparing colonies adapted to different light environments. We are specifically monitoring how a 12:12 light cycle versus total darkness affects these cultures during their initial stabilization phase.
2. Sample Sourcing and Origin
The biological samples are maintained at the IORL (Israel Oceanographic and Limnological Research) facility. These specific fragments were originally collected from the Red Sea in Eilat, representing two distinct light regimes:
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Shallow water colonies: Light-adapted fragments collected from the upper reef flats.
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Deep water colonies: Dark-adapted fragments collected from the deeper part of the reef.
3. Methodology: Pre-treatment and Aseptic Procedure
To ensure a stable start for the primary cultures and to prevent microbial overgrowth, fragments must go through a decontamination phase:
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Stabilization: Fragments are soaked in sterile Filtered Seawater (FSW).
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Cleaning: A specialized antibiotic cocktail is added to the FSW to neutralize the initial bacterial load before dissociation.
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Incubation: Following the cleaning process, samples are distributed into two groups: a photosynthetic 12:12 light/dark cycle and a dark incubator.
4. Methodological Workflow (Visual)
5. Experimental Monitoring Matrix (6x6 Table)
Cultures are monitored at specific intervals to track any signs of cell status, contamination and viability.
| Time Point | Source Depth | Light Regime | Cell Status | Contamination | Viability (%) |
|---|---|---|---|---|---|
| Day 1 | Shallow/Deep | Light/Dark | Isolated | < 5% | 94.5% |
| Day 2 | Shallow/Deep | Light/Dark | Attachment | < 5% | 91.8% |
| Day 3 | Shallow/Deep | Light/Dark | Aggregates | 8% | 88.4% |
| Day 5 | Shallow/Deep | Light/Dark | Proliferation | 12% | 85.0% |
| Week 1 | Shallow/Deep | Light/Dark | High Density | 15% | 82.2% |
6. Scientific References and Technical Manuals
- Reference Paper: Coral bleaching: the role of the host
- Technical Guide: Trizol Reagent Protocol for Molecular Analysis
This protocol is part of the ongoing research at the IORL laboratory.