Jump to ContentJump to Main Navigation
In Search of Cell HistoryThe Evolution of Life's Building Blocks$
Users without a subscription are not able to see the full content.

Franklin M. Harold

Print publication date: 2014

Print ISBN-13: 9780226174143

Published to Chicago Scholarship Online: May 2015

DOI: 10.7208/chicago/9780226174310.001.0001

Show Summary Details
Page of

PRINTED FROM CHICAGO SCHOLARSHIP ONLINE (www.chicago.universitypressscholarship.com). (c) Copyright University of Chicago Press, 2022. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in CHSO for personal use.date: 18 May 2022

Symbionts into Organelles

Symbionts into Organelles

Mitochondria, Plastids, and Their Kin

(p.126) Chapter Eight Symbionts into Organelles
In Search of Cell History

Franklin M. Harold

University of Chicago Press

Mitochondria and plastids are the workhorses of eukaryotic metabolism. It is outrageous but indisputably true that they evolved from endosymbiotic Bacteria during the genesis of eukaryotic organization: mitochondria from alpha-proteobacteria, plastids from cyanobacteria. This chapter considers what molecular alterations were required to transform free-living bacteria into organelles. All mitochondria appear to be products of a single episode of this kind. So is the great majority of plastids, which then dispersed widely across the eukaryotic universe. The exception is the plastid of the protist Paulinella, which represents an independent and much more recent instance of endosymbiosis. Hydrogenosomes and other specialized organelles found in anaerobic eukaryotes belong to the extended mitochondrial family, and appear to be products of reductive evolution.

Keywords:   endosymbiosis, mitochondria, plastids, Paulinella, hydrogenosomes

Chicago Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.

Please, subscribe or login to access full text content.

If you think you should have access to this title, please contact your librarian.

To troubleshoot, please check our FAQs, and if you can't find the answer there, please contact us.