Tag: Chlamydomonas reinhardtii

Chlamydomonas light regulation doubles biomass yield

Due to the overall low thermodynamic efficiency (1 – 4%) of photosynthesis and its impact on crop productivity, substantial efforts are being made to engineer photosynthesis to improve its light use and carbon capture efficiency to increase crop yields. The greatest potential for increasing…

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Algae in blood vessels could be oxygen factories

Laura Sanders reports in Sciencenews.org that using algae as local oxygen factories in the brain might one day lead to therapies for strokes or other damage from too little oxygen, according to researchers from Ludwig-Maximilians University Munich. Their research was announced October 21 at the annual…

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Magnetized microalgae could be the future of medicine

Jessica D’Lima writes in AdvancedScienceNews.com that medicine is moving towards minimally invasive procedures, which have important patient-oriented benefits such as shorter hospitalization durations and lower risks for infections and complications. In this regard, microrobots have…

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Microalgae delivering targeted medicines

Nature.com reports that swimming algae have been enlisted to carry drugs to individual cells, raising the prospect that such “microswimmers” could deliver targeted therapies. Miniscule devices propelled by living organisms can “swim” through the body to deliver cargo such as…

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Overcoming limitations of engineering eukaryotic algae

Have some of the final engineering limitations of microalgae been overcome? Can microalgae be hosts for genetic engineering as powerful as bacteria and yeast? A promising new technique for gene design seems to overcome expression limitations of nuclear transgene expression for practical eukaryotic algal engineering…

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Chemical communication between algae and bacteria

If green algae of the species Chlamydomonas reinhardtii meet Pseudomonas protegens bacteria, their fate is sealed. The bacteria, measuring only some two micrometers, surround the algae, which are around five times larger, and attack them with a deadly toxic cocktail. The algae lose their flagella, which renders…

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Resetting the circadian clock in algae

The human body clock runs on a 24-hour cycle, or circadian (from the Latin meaning “about a day”) rhythm. When our internal cycle gets out of sync with our surroundings, such as when crossing time zones, jetlag can result. The circadian rhythm therefore needs to be reset, which is achieved primarily…

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Algal “toolkit” discovered to repair proteins

A new way of fixing inactive proteins has been discovered in an alga, which uses chloroplast extracts and light to release an interrupting sequence from a protein. Research specialist Stephen Campbell and Professor David Stern at the Boyce Thompson Institute, in Ithaca, NY…

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How algal cells recycle components during scarcity

To cope with changes in its aquatic environment and the nutrient deficiencies that may result, Chlamydomonas reinhardtii, a mobile single-cell alga, must adapt its metabolism for subsistence, notably in terms of sugar. The latter is produced by photosynthesis. To this end, plants and algae use internal cell structures…

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Chlamydomonas study shows nature’s coping mechanism

A small freshwater algal strain that has evolved to live in harsh seawater is giving scientists insight into how living things adapt to changes in their environment. The findings could help scientists better understand how species have been able to adapt to major shifts of circumstances in the past, such as transferring from…

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Chlamy — a cure for blindness?

Sarah Zhang writes in Wired Magazine that the single-cell green algae Chlamydomonas reinhardtii have an eyespot that makes use of light-sensitive proteins. One of them is called channelrhodopsin-2. This algal protein, transplanted into the human retina, could one day restore sight to the blind…

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Gently stressing algae for higher lipids

Some algae like Chlamydomonas reinhardtii (or “Chlamy,” as it’s known to its large research community) produce energy-dense oils or lipids when stressed, and these lipids can then be converted into fuels. However, researchers walk a fine line in not killing the goose that lays the golden eggs, in this case, stressing…

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Swimming algae decode living fluid dynamics

None of us would be alive if sperm cells didn’t know how to swim, or if the cilia in our lungs couldn’t prevent fluid buildup. But we know very little about the dynamics of so-called “living fluids,” those containing cells, microorganisms or other biological structures. Understanding the behavior of living fluids starts…

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Bioprinting algae in 3D

Brian Krassenstein, writing in 3Dprint.com, goes deeper into the recent paper in Engineering in Life Sciences journal discussing the impact 3D bioprinting will have in the field of medicine. As several companies are already printing living human tissue, it’s only a matter of time before many ailments can be halted via…

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Discovering algae’s suicidal tendencies

The question of why an individual would actively kill itself has been an evolutionary mystery. Death could hardly provide a fitness advantage to the dying individual. However, a new study has found…

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