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The Making of a Photosynthetic Animal

The Making of a Photosynthetic Animal. Group B12 Siddharth Pant, Amal Punnoose , Ji Hoon Lee. Some animals have evolved to share a symbiotic relationship with intact unicellular algae or cyanobacteria Photobiont acts as autono mous photosynthetic factory

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The Making of a Photosynthetic Animal

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  1. The Making of a Photosynthetic Animal Group B12Siddharth Pant, AmalPunnoose, JiHoonLee

  2. Some animals have evolved to share a symbiotic relationship with intact unicellular algae or cyanobacteria • Photobiont acts as autonomous photosynthetic factory • Most organisms acquire plastids by feeding on algal prey (Kleptoplasty) • Limited to aquatic environments and certain phyla • Limited to simple organisms, many with only two cell layers Background Information

  3. Photosynthesis

  4. Plastids do not have photosystem I, II, cytochrome B6/F complex, or ATP synthase • Have RuBisCO, other proteins substituted by the host organism • Work by absorbing large amounts of sunlight • Virtually little else is known on molecular and biochemical levels Photosynthesis In Kleptoplasts

  5. Concerning E. Chlorotica: • Does not go into adult stage before acquiring plastids through feeding • Provides energy for the life span of the organism (about 10 months for E. chlorotica) • Horizontal gene transfer • No nucleo-cytosolic communication is detected in the algal nucleo-cytosol in E. Chlorotica Data/Results

  6. Discussion

  7. If you can’t beat ‘em, join ‘em. Take Home Message

  8. Freeman, Scott, and Healy Hamilton. Biological Science, 4th Edition. San Francisco, CA: Pearson Education, 2011. Print. • Storm. "The Journal of Experimental Biology." The Making of a Photosynthetic Animal. N.p., n.d. Web. 30 Oct. 2012. <http://jeb.biologists.org/content/214/2/303.full>. • "Result Filters." National Center for Biotechnology Information. U.S. National Library of Medicine, n.d. Web. 30 Oct. 2012. <http://www.ncbi.nlm.nih.gov/pubmed/22319135>. Works Cited

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