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MICH-ORGANIC  September 2007

MICH-ORGANIC September 2007

Subject:

FW: Soil Micro Biology talk Thursday 4pm

From:

Vicki Morrone <[log in to unmask]>

Reply-To:

Vicki Morrone <[log in to unmask]>

Date:

Wed, 12 Sep 2007 12:19:40 -0400

Content-Type:

text/plain

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This just came across my desk and thought  some of you may be
interested.
Happy Harvesting
Vicki


Subject: Soil Micro Biology talk Thursday 4pm

CSS/Horticulture 2007 Fall Seminar Series
Thursday, September 13
4:10 pm - 5:00 pm
149 PSSB 

Soil Microbiology, Perhaps the Greatest Frontier for Science in All of 
Biology 

by 

Dr. James Tiedje
University Distinguished Professor
Director, Center for Microbial Ecology, MSU 


The case in support of the title is that the soil harbors the largest 
reservoir of undiscovered biological diversity on Earth. This is because
of 
the huge number of niches, spatial isolation on a small scale and the 
outcome of 3.8 billion years of evolution. The new molecular methods
have 
allowed us to understand this diversity at the gene, genome and
metagenome 
levels. I will give some examples that illustrate progress in
understanding 
the extent of microbial diversity, how the new 454 (pyrosequencing) is 
revolutionizing our understanding of soil microbial diversity, its 
application to determine the impact of cropping systems in Ghana (for
carbon 
sequestration) on the microbial community.  At the genome level, I will
use 
Burkholderia is an example: a microbial group that most commonly lives
on 
roots of grassy plants (esp corn), but also causes disease in cystic 
fibrosis patients, degrades pollutants, prevents as well as causes plant

diseases, fixes nitrogen - even in nodules of legume plants.  Its 
versatility may be due to its large genome and its arrangement into
three 
replicons allowing for genetic flexibility. I will also mention the
rather 
newly discovered nitrogen cycle process - anaerobic nitrification -
known as 
anammox, as an example of a major diversity discovery that affects the 
global N cycle. 

 

Light refreshments will be available beginning at 4:00 p.m. 

Jeremy Moghtader
Manager/Instructor
Student Organic Farm
Organic Farming Certificate Program
Michigan State University 

517-230-7987 

If you would like to access previous postings to the Mich-Organic listserv you can copy and paste the following URL into your browser address bar
 http://list.msu.edu/archives/mich-organic.html

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