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The Role Of Bacterial Symbionts And Bioluminescence In The Pyrosome, Pyrosoma Atlanticum, Alexis Berger
The Role Of Bacterial Symbionts And Bioluminescence In The Pyrosome, Pyrosoma Atlanticum, Alexis Berger
HCNSO Student Theses and Dissertations
The pelagic tunicate, Pyrosoma atlanticum, is known for its brilliant bioluminescence, but the mechanism causing this bioluminescence has not been fully characterized. This study identifies the bacterial bioluminescent symbionts of P. atlanticum collected in the northern Gulf of Mexico using various methods such as electron microscopy, light microscopy, and molecular genetics. The bacteria are localized within a specific pyrosome light organ. Bioluminescent symbiotic bacteria of Vibrionaceae composed >50% of taxa in tunicate samples (n=13), which was shown by utilizing current molecular genetics methodologies. While searching for bacterial lux genes in 2 tunicate samples, we also serendipitously generated a draft …