Biology 1002B Lecture 22: Lecture 22-Elysia Vaucheria system.docx

• School: Western University
• Department: Biology
• Course: Biology 1002B
• Professor: Tom Haffie

Document Summary

Elysia sucks out the chloroplast from the alga and the chloroplast remains functions for a long period of time. Elysia is able to keep the chloroplast functional for a long period of time. The chloroplast decays over time but it takes a much longer time than if you just left chloroplast for a long period of time. Elysia is able to maintain chloroplast much longer than if you just left the chloroplast isolated and in a buffer. Vaucheria has lots of those photosynthetic and mitochondrial genes in nucleus. Then these proteins must be imported because they"re now incoded by the nucleus. Elysia is an animal, it doesn"t have a chloroplast, it still has lateral gene transfer. It has genes in its nucleus that contain mitochondria proteins. It"s an animal, it shouldn"t have photosynthetic genes in it. The provide evidence that absolutely, there is a psbo gene from vaucheria riding in the elysia nucleus. psbo encodes a component of psii.