FN Archimer Export Format
PT J
TI Modeling continuous cultures of microalgae colimited by nitrogen and phosphorus
BT 
AF BOUGARAN, Gael
   BERNARD, Olivier
   SCIANDRA, Antoine
AS 1:1;2:2;3:3,4;
FF 1:PDG-DOP-DCN-BRM-PBA;2:;3:;
C1 PBA IFREMER, F-44311 Nantes 03, France.
   COMORE INRIA, F-06902 Sophia Antipolis, France.
   Univ Paris 06, Unite Mixte Rech 7093, Lab Oceanog Villefranche, Villefranche Sur Mer, France.
   Ctr Natl Rech Sci, Unite Mixte Rech 7093, Lab Oceanog Villefranche, Villefranche Sur Mer, France.
C2 IFREMER, FRANCE
   INRIA, FRANCE
   UNIV PARIS 06, FRANCE
   CNRS, FRANCE
SI NANTES
SE PDG-DOP-DCN-BRM-PBA
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 2.371
TC 73
UR https://archimer.ifremer.fr/doc/00011/12216/9060.pdf
LA English
DT Article
DE ;Colimitation;Phytoplankton;Mathematical model;Quota
AB It is well documented that the combination of low nitrogen and phosphorus resources can lead to situations where colimitation of phytoplankton growth arises, yet the underlying mechanisms are not fully understood. Here, we propose a Droop-based model built on the idea that colimitation by nitrogen and phosphorus arises from the uptake of nitrogen. Indeed, since N-porters are active systems, they require energy that could be related to the phosphorus status of the cell. Therefore, we assumed that N uptake is enhanced by the P quota. Our model also accounts for the biological observations that uptake of a nutrient can be down-regulated by its own internal quota, and succeeds in describing the strong contrast for the non-limiting quotas under N-limited and P-limited conditions that was observed on continuous cultures with Selenastrum minutum and with Isochrysis affinis galbana. Our analysis suggests that, regarding the colimitation concept. N and P would be better considered as biochemically dependent rather than biochemically independent nutrients. (C) 2010 Elsevier Ltd. All rights reserved.
PY 2010
PD AUG
SO Journal Of Theoretical Biology
SN 0022-5193
PU Academic Press Ltd- Elsevier Science Ltd
VL 265
IS 3
UT 000280374100024
BP 443
EP 454
DI 10.1016/j.jtbi.2010.04.018
ID 12216
ER

EF