Skip to main content

Ecological Adaptability of Bacillus to Extreme Oligotrophy in the Cuatro Cienegas Basin

  • Chapter
  • First Online:
  • 517 Accesses

Part of the book series: Cuatro Ciénegas Basin: An Endangered Hyperdiverse Oasis ((CUCIBA))

Abstract

The genus Bacillus is known for its ability to colonize diverse environments and to take up a wide variety of resources. Both properties are linked to its spore-forming life history strategy and to its high number of rrn operon copies per genome. Experimental evidence has postulated a relationship between the number of copies of the rrn operon and the availability of environmental phosphorus. Generally, aquatic bacteria isolated from oligotrophic environments have few rrn operon copies and other adaptations that decrease cellular phosphorus demand. The Cuatro Cienegas Basin (CCB) is an aquatic ecosystem with extreme oligotrophy and with high diversity of Bacillus strains. For this reason, we explored the variation of the rrn operon copy number in different Bacillus lineages and their physiological implications during growth under oligotrophic conditions. Unexpectedly, the Bacillus from the CCB has a high variation in the number of rrn operon copies despite the extreme phosphorus limitation in this environment. In addition, these bacilli showed different ecological responses reflected in the heterogeneity of their growth dynamics. This heterogeneity seems to be a response to the low availability of nutrients and the competitive cost represented by a high number of rrn operon copies. Interestingly, the cellular stoichiometry and protein content during growth dynamics of these Bacillus are not consistent with the growth rate hypothesis. The ecological adaptability of the genus Bacillus to the oligotrophy of the CCB appears to be due to its high heterogeneity in the number of copies of the rrn operon, its cellular stoichiometry, and its ecophysiological adaptations.

This is a preview of subscription content, log in via an institution.

Buying options

Chapter
USD   29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD   84.99
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD   109.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD   109.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Learn about institutional subscriptions

References

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Valeria Souza .

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2018 Springer International Publishing AG, part of Springer Nature

About this chapter

Check for updates. Verify currency and authenticity via CrossMark

Cite this chapter

Valdivia-Anistro, J., Eguiarte, L.E., Souza, V. (2018). Ecological Adaptability of Bacillus to Extreme Oligotrophy in the Cuatro Cienegas Basin. In: García-Oliva, F., Elser, J., Souza, V. (eds) Ecosystem Ecology and Geochemistry of Cuatro Cienegas. Cuatro Ciénegas Basin: An Endangered Hyperdiverse Oasis. Springer, Cham. https://doi.org/10.1007/978-3-319-95855-2_9

Download citation

Publish with us

Policies and ethics