A Desulfatation-Oxidation Cascade Activates Coumarin-Based Cross-Linkers in the Wound Reaction of the Giant Unicellular Alga Dasycladus vermicularis

2011 ◽  
Vol 50 (33) ◽  
pp. 7691-7694 ◽  
Author(s):  
Matthew Welling ◽  
Cliff Ross ◽  
Georg Pohnert
Keyword(s):  
Unicellular Alga ◽  
Wound Reaction

Melatonin: a novel strategy for prevention of obesity and fat accumulation in peripheral organs through the improvements of circadian rhythms and antioxidative capacity

2020 ◽  
Vol 3 (1) ◽  
pp. 58-76 ◽  
Author(s):  
Bohan Rong ◽  
Qiong Wu ◽  
Chao Sun
Keyword(s):  
Oxidative Stress ◽  
Skeletal Muscle ◽  
Circadian Rhythms ◽  
Regulatory Mechanisms ◽  
Antioxidative Capacity ◽  
Unicellular Alga ◽  
Peripheral Tissues ◽  
Peripheral Organs ◽  
Regulatory Effects ◽  
Novel Strategy

Melatonin is a well-known molecule for its involvement in circadian rhythm regulation and its contribution to protection against oxidative stress in organisms including unicellular alga, animals and plants. Currently, the bio-regulatory effects of melatonin on the physiology of various peripheral tissues have drawn a great attention of scientists. Although melatonin was previously defined as a neurohormone secreted from pineal gland, recently it has been identified that virtually, every cell has the capacity to synthesize melatonin and the locally generated melatonin has multiple pathophysiological functions, including regulations of obesity and metabolic syndromes. Herein, we focus on the effects of melatonin on fat deposition in various peripheral organs/tissues. The two important regulatory mechanisms related to the topic, i.e., the improvements of circadian rhythms and antioxidative capacity will be thoroughly discussed since they are linked to several biomarkers involved in obesity and energy imbalance, including metabolism and immunity. Furthermore, several other functions of melatonin which may serve to prevent or promote obesity and energy dysmetabolism-induced pathological states are also addressed. The organs of special interest include liver, pancreas, skeletal muscle, adipose tissue and the gut microbiota.

scholarly journals Intermediates of tocopherol biosynthesis in the unicellular alga Scenedesmus obliquus. The presence of three isomeric methylphytylbenzoquinones

1987 ◽  
Vol 242 (2) ◽  
pp. 367-373 ◽  
Author(s):  
A Henry ◽  
R Powls ◽  
J F Pennock
Keyword(s):  
Carbon Atom ◽  
Hydroxy Group ◽  
Scenedesmus Obliquus ◽  
Alpha Tocopherol ◽  
Unicellular Alga ◽  
Unicellular Algae

Three isomers of methylphytylbenzoquinone have been isolated from lipids of the unicellular alga Scenedesmus obliquus, the most abundant being 2-methyl-6-phytylbenzoquinone (65% of the total). The 2-methyl-3-phytyl and 2-methyl-5-phytyl isomers amounted to 8 and 27% respectively. Previously problems have been encountered in the separation of the 3-phytyl and the 6-phytyl isomers, but in the present study it was found that they separated readily as quinols. Phytyl plastoquinone was also found and the relevance of these compounds to the biosynthesis of alpha-tocopherol is discussed. As well as phylloquinone, a hydroxyphylloquinone was detected, and studies indicated that it is the 5′ carbon atom to which the hydroxy group is attached. Such a compound has been found by workers using other unicellular algae.

scholarly journals Amino Acid Sequence of a Novel Calmodulin from the Unicellular Alga Chlamydomonas

1985 ◽  
Vol 78 (3) ◽  
pp. 477-483 ◽  
Author(s):  
Thomas J. Lukas ◽  
Michael E. Wiggins ◽  
D. Martin Watterson
Keyword(s):  
Amino Acid ◽  
Amino Acid Sequence ◽  
Unicellular Alga
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