[DIYbio] Re: Synechococcus elongatus UTEX 2973

are you sure you want Blue-Green algae as food-stuff producer?

brief article: http://newsroom.uts.edu.au/news/2013/09/breakthrough-discovery-links-blue-green-algae-with-motor-neuron-disease

full text: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0075376

option #2: http://www.ncbi.nlm.nih.gov/pubmed/15817793

Then again everyone seems to be advocating for Spirulina. 

On Thursday, December 10, 2015 at 1:50:51 PM UTC-5, Jonathan Cline wrote:

These cyanobacteria in general are freshwater photoautotrophs. 
Might this new little guy be edible after washing?
   


Quote:

Efforts focusing on understanding cyanobacterial
systems are underway; however, one drawback compared to E. coli or yeast is that the growth rates of commonly
used cyanobacterial model strains are significantly slower, requiring extended timeframes (weeks to months) to
accomplish synthetic biology experiments that can be performed in E. coli or yeast in days.
[...]
Growth of Synechococcus UTEX 2973 was assessed under different
conditions and the shortest doubling time was 1.9 hrs in BG11
medium19 at 41uC under continuous 500 mmoles photons?m22?s21
white light with 3%CO2. This is a remarkably high growth rate under
autotrophic condition, the highest rate reported to date for a
cyanobacterial strain, and comparable to heterotrophic growth
rates of the yeast S. cerevisiae. The doubling time of Synechococcus
UTEX 2973 increased to 2.3 hrs at 38uC (Table 1).
[...]
Culture conditions that are optimal for the rapid growth of
Synechococcus UTEX 2973 (38–41uC, 3% CO2 and 500 mmole
photons?m22?s21 using BG11 media) are utilized in many laboratories,
and no special nutrients, such as vitamins, are required for the
growth of this cyanobacterial strain. This strain grows so rapidly, in
culture volumes ranging from 50 ml to 100 L, such as in a photobioreactor,
that contamination was not apparent even when growth
media were not sterilized and the systems were semi-open to the
outside. On solid BG11 plates, at 38uC and under 200 mmoles
photons?m22?s21 light and in ambient air, single colonies of
Synechococcus UTEX 2973 were visible within 2 days after plating
from a very dilute liquid culture, and these colonies were large
enough for passage by the third day.
[...]


End Quote

Ref:

Yu, Jingjie; Liberton, Michelle; Cliften, Paul F.; Head, Richard D.; Jacobs, Jon M.; Smith, Richard D.; Koppenaal, David W.; Brand,
Jerry J.; and Pakrasi, Himadri B., ,"Synechococcus elongatus UTEX 2973, a fast growing cyanobacterial chassis for biosynthesis using
light and CO2." Scientific Reports.5,. 8132. (2015).
http://digitalcommons.wustl.edu/open_access_pubs/4285

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