Melatonin: A Multifunctional Molecule That Triggers Defense Responses against High Light and Nitrogen Starvation Stress in Haematococcus pluvialis

2018 ◽  
Vol 66 (29) ◽  
pp. 7701-7711 ◽  
Author(s):  
Wei Ding ◽  
Yongteng Zhao ◽  
Jun-Wei Xu ◽  
Peng Zhao ◽  
Tao Li ◽  
...  
Keyword(s):  
Nitrogen Starvation ◽  
Haematococcus Pluvialis ◽  
Defense Responses ◽  
High Light ◽  
Starvation Stress

ACCUMULATION OF OLEIC ACID IN HAEMATOCOCCUS PLUVIALIS (CHLOROPHYCEAE) UNDER NITROGEN STARVATION OR HIGH LIGHT IS CORRELATED WITH THAT OF ASTAXANTHIN ESTERS 1

2002 ◽  
Vol 38 (2) ◽  
pp. 325-331 ◽  
Author(s):  
Mirash Zhekisheva ◽  
Sammy Boussiba ◽  
Inna Khozin‐Goldberg ◽  
Aliza Zarka ◽  
Zvi Cohen
Keyword(s):  
Oleic Acid ◽  
Nitrogen Starvation ◽  
Haematococcus Pluvialis ◽  
High Light

Photosynthetic response to nitrogen starvation and high light in Haematococcus pluvialis

2015 ◽  
Vol 12 ◽  
pp. 170-181 ◽  
Author(s):  
Luca Scibilia ◽  
Laura Girolomoni ◽  
Silvia Berteotti ◽  
Alessandro Alboresi ◽  
Matteo Ballottari
Keyword(s):  
Nitrogen Starvation ◽  
Haematococcus Pluvialis ◽  
High Light ◽  
Photosynthetic Response

Enhancement of astaxanthin biosynthesis in Haematococcus pluvialis via inhibition of autophagy by 3-methyladenine under high light

2020 ◽  
Vol 50 ◽  
pp. 101991 ◽  
Author(s):  
Xiaodan Wang ◽  
Yanan Song ◽  
Baoling Liu ◽  
Wei Hang ◽  
Renjian Li ◽  
...  
Keyword(s):  
Haematococcus Pluvialis ◽  
High Light

scholarly journals Metabolite Profiling and Integrative Modeling Reveal Metabolic Constraints for Carbon Partitioning under Nitrogen Starvation in the Green Algae Haematococcus pluvialis

2014 ◽  
Vol 289 (44) ◽  
pp. 30387-30403 ◽  
Author(s):  
Lee Recht ◽  
Nadine Töpfer ◽  
Albert Batushansky ◽  
Noga Sikron ◽  
Yves Gibon ◽  
...  
Keyword(s):  
Stress Response ◽  
Green Alga ◽  
In Silico ◽  
Nitrogen Starvation ◽  
Tricarboxylic Acid Cycle ◽  
Carbon Partitioning ◽  
Tricarboxylic Acid ◽  
High Light ◽  
Acid Cycle ◽  
Increased Activity

The green alga Hematococcus pluvialis accumulates large amounts of the antioxidant astaxanthin under inductive stress conditions, such as nitrogen starvation. The response to nitrogen starvation and high light leads to the accumulation of carbohydrates and fatty acids as well as increased activity of the tricarboxylic acid cycle. Although the behavior of individual pathways has been well investigated, little is known about the systemic effects of the stress response mechanism. Here we present time-resolved metabolite, enzyme activity, and physiological data that capture the metabolic response of H. pluvialis under nitrogen starvation and high light. The data were integrated into a putative genome-scale model of the green alga to in silico test hypotheses of underlying carbon partitioning. The model-based hypothesis testing reinforces the involvement of starch degradation to support fatty acid synthesis in the later stages of the stress response. In addition, our findings support a possible mechanism for the involvement of the increased activity of the tricarboxylic acid cycle in carbon repartitioning. Finally, the in vitro experiments and the in silico modeling presented here emphasize the predictive power of large scale integrative approaches to pinpoint metabolic adjustment to changing environments.

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