Dictionary > Chlorosome

Chlorosome

Chlorosome is a photosynthetic micro-compartment that serves as a light-harvesting complex in sulfur bacteria and other anoxygenic phototrophic prokaryotes. One of its major features is its lack of protein matrix. Moreover, it is larger than the other antenna complexes. In green sulfur bacteria, their dimension ranges from 100 nm to 200 nm in length, 50 to 100 nm in diameter, and 15 to 30 nm in height.(1) This antenna complex in green sulfur bacteria is essential to them since they live in aquatic habitats with depths of 100 meters. With about 250,000 chlorophyll pigments, it improves photon capture at low-light habitats. Chlorosomes are one of the organellar-like compartments in prokaryotes. The others are carboxysomes and magnetosomes.

See also

References

  1. Martinez-Planells, A., Arellano, J. B., Borrego, C. M., López-Iglesias, C., Gich, F., & Garcia-Gil, J. (2002). “Determination of the topography and biometry of chlorosomes by atomic force microscopy”. Photosynthesis Research. 71 (1–2): 83–90.

© Biology Online. Content provided and moderated by Biology Online Editors



You will also like...

Population Regulation in an Ecosystem
Population Regulation in an Ecosystem

With regard to the population size of a species and what factors may affect them, two factors have been defined. They ar..

Biological Viruses
Biological Viruses

Viruses possess both living and non-living characteristics. This unique feature distinguishes them from other organisms...

Biosecurity and Biocontrol
Biosecurity and Biocontrol

This lesson explores the impact of biosecurity threats, and why they need to be identified and managed. Examples to incl..

Freshwater Ecology
Freshwater Ecology

Freshwater ecology focuses on the relations of aquatic organisms to their freshwater habitats. There are two forms of co..

Electromagnetic spectrum of a brain
Sleep and Dreams – Neurology

While learning and intelligence are associated with the functions of a conscious mind, sleep and dreams are activities o..

Genetics and Evolution
Genetics and Evolution

Humans are diploid creatures. This means that for every chromosome in the body, there is another one to match it. Howeve..