Cyanobacteria Mats

Microbial Mat Stratification with O₂ and H₂S Gradients

Cyanobacteria
Green Sulfur
Purple Sulfur
SRB
☀️ DAY
Generation:0
Cyanobacteria:0
Green Sulfur:0
Purple Sulfur:0
SRB:0

Microbial Mats

Microbial mats are layered ecosystems. Cyanobacteria on top perform oxygenic photosynthesis. Below, purple and green sulfur bacteria use H₂S for anoxygenic photosynthesis. SRB in the anoxic zone produce H₂S. Day/night cycles drive dramatic chemical gradient shifts.