|
NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Experimental Biology (IJEB) >
IJEB Vol.49 [2011] >
IJEB Vol.49(03) [March 2011] >
| Title: | Photoperiod influences endogenous indoleamines in cultured green alga Dunaliella bardawil |
| Authors: | Ramakrishna, A
Dayananda, C
Giridhar, P
Rajasekaran, T
Ravishankar, G A |
| Keywords: | Carotenoids
Dunaliella bardawil
Indoleamines
Melatonin
Serotonin |
| Issue Date: | Mar-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Effect of light intensity and photoperiod on
growth, indoleamines and carotenoid production was
studied in unicellular green algae D.
bardawil. Maximum biomass and carotenoid contents were found when cultures
were grown in light (intensity of 2.0 Klux) at a photoperiod of 16/8h light and
dark cycle. There was a profound influence of tested photoperiod conditions of
light:dark viz. 8:16, 10:14, and 12:12 hr, continuous light on indoleamines
(SER and MEL) production as estimated by HPLC and confirmed by mass spectral
data obtained from LC-MS-ESI studies. Serotonin level increased from 908 to
1765 pg/g fresh wt with increase in light duration and melatonin level
increased from 267 to 584 pg/g fresh wt during increase in dark phase.
Carotenoids production was high in continuous light than other tested
conditions. |
| Page(s): | 234-240 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1009 (Online); 0019-5189 (Print) |
| Source: | IJEB Vol.49(03) [March 2011]
|
|
