[Terrapreta] Metagenomics; The Tool We need for TP & The Chemistry of Energy in Tech Review
Shengar at aol.com
Shengar at aol.com
Wed Jun 27 23:28:08 EDT 2007
Hi All,
July/August 2007
Metagenomics Defined
Genomics will help explain the microbial world.
By Ed DeLong
"Conventional genomic research on microörganisms determines the DNA sequences
of individual microbes by examining cultivated strains. In metagenomics, DNA
sequence information is extracted from entire microbial communities in
situ."
"The ­majority of extant microbial species and their behaviors therefore
represent a vast biological terra incognita. Meta­genomic approaches,
which sidestep the need to purify and cultivate individual microbial strains,
make it easier to retrieve genome sequence information from elusive microbial
species. A second, and perhaps more important, point is that microbial species
do not generally occur as single strains or pure cultures. Rather, any given
microbial assemblage can consist of hundreds of different species, each one
displaying significant genetic variability. The biological meaning and
functional consequences of this tremendous within- and between-species biodiversity
remain obscure. Metagenomic approaches enable direct assessment of community
diversity and provide data sets relevant to both measuring and modeling
biological processes."
"The study of anthropogenic effects on microbial processes that regulate the
mass balance of planetary carbon and nitrogen cycles will also benefit from
metagenomics."
_http://www.technologyreview.com/Biotech/18865/_
(http://www.technologyreview.com/Biotech/18865/)
Also;
A Q&A with;
George Whitesides ,The chemistry of energy
. _http://www.technologyreview.com/read_article.aspx?id=18863&ch=energy_
(http://www.technologyreview.com/read_article.aspx?id=18863&ch=energy)
He hints all around the problems that TP seems to solve. I plan to send him
my TP links
Erich J. Knight
Shenandoah Gardens
1047 Dave Berry Rd.
McGaheysville, VA. 22840
(540) 289-9750
shengar at aol.com
************************************** See what's free at http://www.aol.com.
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