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07:28
Methods for the Extraction of Endosymbionts from the Whitefly Bemisia tabaci
Published on: June 19, 2017
[Chemoautotrophic endosymbioses: contemporary models for symbiogenesis?]
Sophie Sanchez1, Stéphane Hourdez, François H Lallier
1Laboratoire Adaptation et Diversité en Milieu Marin, UPMC CNRS UMR 7144, Station Biologique de Roscoff, Place Georges Teissier, 29682 Roscoff cedex.
Journal De La Societe De Biologie
|December 25, 2007
Summary
Life
Area of Science:
- Evolutionary biology
- Microbiology
- Symbiosis research
Background:
- Oxygen's rise correlates with life's evolution, from early photosynthesis to complex multicellular organisms.
- Anaerobic prokaryotes persist in oxygen-poor environments, some forming symbiotic relationships with metazoa.
- Studying modern symbioses offers insights into early life and organelle evolution.
Purpose of the Study:
- To explore the evolutionary significance of oxygen in life's development.
- To investigate anaerobic prokaryote survival and symbiotic associations in extreme environments.
- To understand the mechanisms and evolutionary implications of host-symbiont interdependence.
Main Methods:
- Comparative analysis of diverse symbiotic associations (e.g., Bathymodiolus mussels, Riftia tubeworms, Calyptogena clams).
- Examining the degree of interdependence and symbiont transmission modes in selected metazoan-prokaryote symbioses.
- Drawing parallels between modern symbioses and primary endosymbiotic events (mitochondria, chloroplasts).
Main Results:
- Endosymbiotic relationships vary in host-symbiont interdependence and transmission.
- Modern symbioses provide models for understanding early life's evolutionary processes.
- Thiotrophic eukaryotes may represent a novel evolutionary lineage.
Conclusions:
- Oxygen availability profoundly shaped life's evolution on Earth.
- Symbiotic relationships between metazoa and chemoautotrophic prokaryotes offer insights into evolutionary pathways.
- Further study of these symbioses could illuminate the origins of eukaryotic organelles and reveal new biological lineages.
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