干旱区生态环境知识资源中心(Arid): Cultivating Microalgae in Desert Conditions: Evaluation of the Effect of Light-Temperature Summer Conditions on the Growth and Metabolism of Nannochloropsis QU130

Arid

DOI	10.3390/app11093799
	Cultivating Microalgae in Desert Conditions: Evaluation of the Effect of Light-Temperature Summer Conditions on the Growth and Metabolism of Nannochloropsis QU130
	Al Jabri, Hareb; Taleb, Aumaya; Touchard, Raphaelle; Saadaoui, Imen; Goetz, Vincent; Pruvost, Jeremy
通讯作者	Pruvost, J (corresponding author), Univ Nantes, Oniris, CNRS, UMR 6144,GEPEA, F-44600 St Nazaire, France.
来源期刊	APPLIED SCIENCES-BASEL
EISSN	2076-3417
出版年	2021
卷号	11 期号:9
英文摘要	Temperature and light are two of the most crucial factors for microalgae production. Variations in these factors alter their growth kinetics, macromolecular composition and physiological properties, including cell membrane permeability and fluidity. The variations define the adaptation mechanisms adopted by the microalgae to withstand changes in these environmental factors. In the Qatar desert the temperature varies widely, typically between 10 degrees and 45 degrees C There are also wide variations in light intensity, with values of over 1500 mu mol(h nu).m(-2)s(-1) in summer. A study of the effects of these thermal and light fluctuations is therefore essential for large-scale outdoor production systems, especially during the summer when temperature and light fluctuations are at their highest. The aim of this work is to study the impact of temperature and light intensity variations as encountered in summer period on the Nannochloropsis QU130 strain, which was selected for its suitability for outdoor cultivation in the harsh conditions of the Qatar desert. It was carried out using lab-scale photobioreactors enabling simulation of both constant and dynamic temperature and light regimes. Biomass productivity, cell morphology and biochemical compositions were examined first in constant conditions, then in typical outdoor cultivation conditions to elucidate the adjustments in cell function in respect of fluctuations. The dynamic light and temperature were shown to have interactive effects. The application of temperature cycles under constant light led to a 13.6% increase in biomass productivity, while a 45% decrease was observed under light and temperature regimes due to the combined stress. In all cases, the results proved that N. sp. QU130 has a high level of adaptation to the wide fluctuations in light and temperature stress. This was shown through its ability to easily change its physiology (cell size) and metabolic process in response to different cultivation conditions.
英文关键词	microalgae culture desert temperature light Nannochloropsis
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000649894700001
WOS关键词	FRESH-WATER ; CHLORELLA-MINUTISSIMA ; ENVIRONMENTAL-FACTORS ; ELECTRON-TRANSPORT ; CHLOROPHYLL-A ; HEAT-STRESS ; GREEN-ALGAE ; PHOTOSYNTHESIS ; PHYTOPLANKTON ; CULTURE
WOS类目	Chemistry, Multidisciplinary ; Engineering, Multidisciplinary ; Materials Science, Multidisciplinary ; Physics, Applied
WOS研究方向	Chemistry ; Engineering ; Materials Science ; Physics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349507
作者单位	[Al Jabri, Hareb; Taleb, Aumaya; Touchard, Raphaelle; Pruvost, Jeremy] Univ Nantes, Oniris, CNRS, UMR 6144,GEPEA, F-44600 St Nazaire, France; [Al Jabri, Hareb; Saadaoui, Imen] Qatar Univ, Coll Arts & Sci, Ctr Sustainable Dev, Algal Technol Program, Doha 2713, Qatar; [Goetz, Vincent] CNRS, UPR 8521, PROMES, Tecnosud,Rambla Thermodynam, F-66100 Perpignan, France
推荐引用方式 GB/T 7714	Al Jabri, Hareb,Taleb, Aumaya,Touchard, Raphaelle,et al. Cultivating Microalgae in Desert Conditions: Evaluation of the Effect of Light-Temperature Summer Conditions on the Growth and Metabolism of Nannochloropsis QU130[J],2021,11(9).
APA	Al Jabri, Hareb,Taleb, Aumaya,Touchard, Raphaelle,Saadaoui, Imen,Goetz, Vincent,&Pruvost, Jeremy.(2021).Cultivating Microalgae in Desert Conditions: Evaluation of the Effect of Light-Temperature Summer Conditions on the Growth and Metabolism of Nannochloropsis QU130.APPLIED SCIENCES-BASEL,11(9).
MLA	Al Jabri, Hareb,et al."Cultivating Microalgae in Desert Conditions: Evaluation of the Effect of Light-Temperature Summer Conditions on the Growth and Metabolism of Nannochloropsis QU130".APPLIED SCIENCES-BASEL 11.9(2021).