Synechococcus (still alive today!)
What is Synechococcus?Synechococcus (pronounced sin-eh-ko-KOK-us) is a type of cyanobacteria—a group of microscopic, photosynthetic organisms that have been around for billions of years. In fact, these little creatures helped change Earth’s atmosphere!
They’re still alive today in oceans all over the world, quietly floating and producing oxygen through photosynthesis—just like plants do. Despite being tiny (a single cell), Synechococcus is incredibly important to Earth’s ecosystems and climate.
Why It Matters
- Ancient Lineage: Synechococcus is one of the earliest known photosynthesizers—possibly dating back over 2.5 billion years.
- The Great Oxygenation Event: Cyanobacteria like Synechococcus helped create the oxygen-rich atmosphere we depend on today.
- Still Thriving: It’s one of the most abundant photosynthetic organisms in today’s oceans and plays a key role in the global carbon cycle.
- Cyanobacteria: Microorganisms that use sunlight to make energy and release oxygen.
- Photosynthesis: The process of turning sunlight, water, and carbon dioxide into energy and oxygen.
- Microorganism: A tiny living thing that can only be seen under a microscope.
- Oxygenation: The process of adding oxygen to something—like how early cyanobacteria filled Earth’s air with breathable oxygen.
Optional Activity Ideas
- Microscopic Art: Have kids draw or paint what they think Synechococcus looks like
- Oceans Today: Look up where Synechococcus lives now (tropical oceans) with a globe or map.
Did You Know?
- These bacteria are so small that millions can live in just a teaspoon of seawater!
- Even though they’re not plants, they perform half the photosynthesis on Earth!