Modelling thermal adaptation in microalgae : An adaptive dynamics point of view
Grimaud, Ghjuvan Micaelu LU
; Mairet, Francis
and Bernard, Olivier
(2014)
19th IFAC World Congress on International Federation of Automatic Control, IFAC 2014
In IFAC Proceedings Volumes (IFAC-PapersOnline)
p.4376-4381
- Abstract
Controlling microalgae outdoor cultures is a growing challenge as these organisms could be used at the industrial scale to produce biofuels. In this context, understanding how temperature affects microalgae is a major field. Because of their high division rate, microalgae rapidly adapt to their environment through a process of selection - mutation so that it is not possible to neglect the evolution part. We present here a simple Monod-like model to account for temperature effect on microalgae. We then use it in an evolutionary perspective thanks to the Adaptive Dynamics theory to understand how temperature drives evolution. We analyze the model for a constant temperature, showing that the optimal temperature trait tends to equal the... (More)
Controlling microalgae outdoor cultures is a growing challenge as these organisms could be used at the industrial scale to produce biofuels. In this context, understanding how temperature affects microalgae is a major field. Because of their high division rate, microalgae rapidly adapt to their environment through a process of selection - mutation so that it is not possible to neglect the evolution part. We present here a simple Monod-like model to account for temperature effect on microalgae. We then use it in an evolutionary perspective thanks to the Adaptive Dynamics theory to understand how temperature drives evolution. We analyze the model for a constant temperature, showing that the optimal temperature trait tends to equal the environment temperature. We then study the case where the temperature is periodically fluctuating, and we find a stable equilibrium. Finally, we simulate the model to show that evolutionary branching in two distinct morphs can occur under this condition, which could be a first step to find a criterion for strain selection.
(Less)
- author
- Grimaud, Ghjuvan Micaelu
LU
; Mairet, Francis
and Bernard, Olivier
- publishing date
- 2014
- type
- Contribution to journal
- publication status
- published
- keywords
- Adaptive dynamics theory, Evolution, Microalgae, Temperature
- in
- IFAC Proceedings Volumes (IFAC-PapersOnline)
- pages
- 6 pages
- publisher
- IFAC Secretariat
- conference name
- 19th IFAC World Congress on International Federation of Automatic Control, IFAC 2014
- conference location
- Cape Town, South Africa
- conference dates
- 2014-08-24 - 2014-08-29
- external identifiers
-
- scopus:84929815675
- ISSN
- 1474-6670
- DOI
- 10.3182/20140824-6-za-1003.00982
- language
- English
- LU publication?
- no
- id
- da7a0c3a-0210-4aad-bcb1-fab418e7f2e8
- date added to LUP
- 2024-11-25 16:03:06
- date last changed
- 2024-12-20 11:05:42
@article{da7a0c3a-0210-4aad-bcb1-fab418e7f2e8,
abstract = {{<p>Controlling microalgae outdoor cultures is a growing challenge as these organisms could be used at the industrial scale to produce biofuels. In this context, understanding how temperature affects microalgae is a major field. Because of their high division rate, microalgae rapidly adapt to their environment through a process of selection - mutation so that it is not possible to neglect the evolution part. We present here a simple Monod-like model to account for temperature effect on microalgae. We then use it in an evolutionary perspective thanks to the Adaptive Dynamics theory to understand how temperature drives evolution. We analyze the model for a constant temperature, showing that the optimal temperature trait tends to equal the environment temperature. We then study the case where the temperature is periodically fluctuating, and we find a stable equilibrium. Finally, we simulate the model to show that evolutionary branching in two distinct morphs can occur under this condition, which could be a first step to find a criterion for strain selection.</p>}},
author = {{Grimaud, Ghjuvan Micaelu and Mairet, Francis and Bernard, Olivier}},
issn = {{1474-6670}},
keywords = {{Adaptive dynamics theory; Evolution; Microalgae; Temperature}},
language = {{eng}},
pages = {{4376--4381}},
publisher = {{IFAC Secretariat}},
series = {{IFAC Proceedings Volumes (IFAC-PapersOnline)}},
title = {{Modelling thermal adaptation in microalgae : An adaptive dynamics point of view}},
url = {{http://dx.doi.org/10.3182/20140824-6-za-1003.00982}},
doi = {{10.3182/20140824-6-za-1003.00982}},
year = {{2014}},
}