[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




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