FN Archimer Export Format
PT J
TI Effects of blue light on the biochemical composition and photosynthetic activity of Isochrysis sp. (T-iso)
BT 
AF MARCHETTI, Julie
   BOUGARAN, Gael
   JAUFFRAIS, Thierry
   LEFEBVRE, Sebastien
   ROUXEL, Catherine
   SAINT-JEAN, Bruno
   LUKOMSKA, Ewa
   ROBERT, Rene
   CADORET, Jean-Paul
AS 1:1;2:1;3:1;4:2;5:1;6:1;7:1;8:3;9:1;
FF 1:PDG-RBE-BRM-PBA;2:PDG-RBE-BRM-PBA;3:;4:;5:PDG-RBE-BRM-PBA;6:PDG-RBE-BRM-PBA;7:PDG-RBE-BRM-PBA;8:PDG-RBE-PFOM-PI;9:PDG-RBE-BRM-PBA;
C1 IFREMER, Lab Physiol & Biotechnol Algues, F-44311 Nantes 3, France.
   Univ Lille 1, LOG, CNRS, Stn Marine Wimereux,UMR 8187, F-62930 Wimereux, France.
   IFREMER, Lab Physiol & Ecophysiol Mollusques Marins, Stn Expt Argenton, F-29840 Argenton En Landunvez, France.
C2 IFREMER, FRANCE
   UNIV LILLE, FRANCE
   IFREMER, FRANCE
SI NANTES
   AUTRE
   ARGENTON
SE PDG-RBE-BRM-PBA
   PDG-RBE-EMP-PHYC
   AUTRE
   PDG-RBE-PFOM-PI
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 2.492
TC 53
UR https://archimer.ifremer.fr/doc/00085/19599/17237.pdf
LA English
DT Article
DE ;Isochrysis;Blue light;Photosynthesis;Proximate composition;Chemostat
AB In aquaculture, particularly in bivalve hatcheries, the biochemical composition of algal diets has a strong influence on larval and post-larval development. Biochemical composition is known to be related to culture conditions, among which light represents a major source of variation. The effects of blue light on biochemical composition and photosynthetic rate of Isochrysis sp. (T-iso) CCAP 927/14 were assessed in chemostat at a single irradiance (300 μmol photons m−2 s−1) and compared with white light. Two different dilution (renewal) rates were also tested: 0.7 and 0.2 d−1. Relative carbohydrate content was lower under blue light than under white light at both dilution rates, whereas chlorophyll a and photosynthesis activity were higher. In contrast, carbon quota was lower and protein content higher under blue light than under white light, but only at 0.7 d−1. Despite these metabolic differences, cell productivity was not significantly affected by the spectrum. However, the nitrogen to carbon ratio and photosynthetic activity were higher at 0.7 d−1 than at 0.2 d−1, while carbon quota and carbohydrate content were lower. Our results show that blue light may influence microalgal metabolism without reducing productivity for a given growth rate, a result that should be of great interest for microalgal production in aquaculture.
PY 2013
PD FEB
SO Journal Of Applied Phycology
SN 0921-8971
PU Springer
VL 25
IS 1
UT 000313655400012
BP 109
EP 119
DI 10.1007/s10811-012-9844-y
ID 19599
ER

EF