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ATTACHMENT B

RESOURCE COMMITMENTS

Title: Soil Microbial Taxonomic and Functional Diversity as Affected by Land Use and Management

SAES

Project Leaders

SY

PY

TY

Obj. 1

Obj. 2

Obj. 3

Alabama

Y. Feng*

0.20

0.30

X

X

X

Arkansas

D. C. Wolf*

0.10

X

Delaware

J. J. Fuhrmann*

0.15

X

X

X

Florida

D. M. Sylvia*

0.20

0.20

X

X

J. Graham

0.15

0.25

X

Georgia

P. G. Hartel*

0.25

0.25

X

Maryland

J. S. Angle*

0.20

0.10

X

Nebraska

B. Klucas*

0.10

0.10

X

North Carolina

A. G. Wollum*

0.10

0.10

0.10

X

X

Puerto Rico

E. C. Schröder*

0.25

0.50

0.25

X

X

South Carolina

H. D. Skipper*

0.40

0.30

0.20

X

X

Tennessee

M. D. Mullen*

0.10

0.10

X

X

Texas

D. A. Zuberer*

0.25

0.25

X

X

West Virginia

J. B. Morton*

0.25

0.25

0.20

X

Wisconsin

W. J. Hickey*

0.15

0.15

X

X

TOTAL SAES

2.85

1.80

1.80

USDA–ARS

Georgia (Watkinsville)

A. Franzluebbers*

0.10

X

Georgia (Watkinsville)

M. Jenkins*

0.15

X

Idaho (Kimberly)

J. Entry*

0.15

X

X

TOTAL USDA–ARS

0.40

OTHER COOPERATORS

Univ. of Saskatchewan

J. Germida

0.10

X

Florida Internat'l Univ.

K. Jayachandran

0.10

0.10

X

U. S. Army (CRREL)

M. Reynolds*

0.25

X

TOTAL OTHER COOPERATORS

0.45

0.10

GRAND TOTAL FOR PROJECT

3.70

1.90

1.80

*Voting member; SY = Scientist year, PY = Professional years, TY = Technical support years

ATTACHMENT C

CRITICAL REVIEW FOR REGIONAL RESEARCH PROJECT S-262

Introduction

The regional research project had two objectives, one to define diversity of selected beneficial rhizosphere bacteria and fungi in defined soil–plant systems, and the other to elucidate processes controlling colonization and competitiveness of beneficial rhizosphere organisms. In a general sense, these objectives were not new to the project, and really represented a continuation of research by scientists in the Southern Region first begun in Regional Project S-112 (Enhancing Biological Dinitrogen Fixation in Soybeans and Other Legumes; 1976-1981), and continued through Regional Project S-170 (Overcoming Factors Limiting Biological Nitrogen Fixation by Leguminous Plants; 1982-1988), S-226 (Enhancing Beneficial Organisms in the Rhizosphere; 1988-1995), and finally, S-262 (Diversity and Interactions of Beneficial Bacteria and Fungi in the Rhizosphere; 1995-2000). Thus, this regional project has been in existence for almost 25 years under various titles with a continual broad emphasis on the beneficial aspects of bacteria and fungi in the rhizosphere. The reason for this long and involved focus is that the rhizosphere is most complex of all microbial environments and that understanding the interdependency of the biotic and abiotic factors in this environment is an extremely difficult goal. Nevertheless, this understanding is a worthy goal because understanding soil–plant–microbial relationships is one key to understanding ecological processes.

Work accomplished under the original project

This regional project, with its long history, would not be in existence unless its members had not demonstrated a continued excellence in productivity and collaboration. Regional Project S-262 is no exception to this history, and the members of Regional Project S-262 are proud of their accomplishments. In terms of productivity, the regional research project has generated 3 books, 36 book chapters, 155 journal articles (142 published or in press; 13 submitted), 147 published abstracts, 1 experiment station bulletin, 1 patent (pending), 12 theses or dissertations, and 12 non-refereed publications. In terms of collaboration, the members of regional research project have had the following collaborations:

a) 12 members from 10 states and Canada collaborated on a textbook, Principles and Applications of Soil Microbiology (completed in 1998). The state affiliation with the various chapters include: AR (Chapter 11, Transformations of carbon and soil organic matter formation), DE (Chapter 10, Microbial metabolism), FL (Chapter 18, Mycorrhizal symbioses; and Chapter 19, Biological control of plant pathogens and nematodes), GA (Chapter 2, The soil habitat), MD (Chapter 7, Viruses), NC (Chapter 1; Introduction and Historical Perspective), SC (Chapter 21, Bioremediation of contaminated soils), TN (Chapter 16, Transformations of other elements), TX (Chapter 12, Biological dinitrogen fixation: Introduction and nonsymbiotic), WV (Chapter 4, Fungi), and Canada (Chapter 15, Transformations of sulfur). To date, over 2200 copies of the textbook have been sold.

b) 4 members from four different states (DE, FL, GA, and TX) collaborated on an accompanying 68-page instructor's manual to the soil microbiology textbook (completed in 1998).

c) 12 different investigators, 9 from the regional project representing nine different states (AL, AR, DE, GA, MD, NC, SC, TX, and WV) and three investigators from outside the region (UT, WA, and Canada) determined differences in bacterial diversity among 14 bulk and rhizosphere soils (completed in 1996).

d) 7 members from 7 states (AR, DE, GA, MD, PR, SC, and TX) determined changes in microbial community structure of the rhizosphere of soybeans during a growing season (completed in 1997).

e) 5 members from 5 states (DE, GA, MD, SC, and TX) determined the misidentification of soil bacteria by fatty acid methyl ester (FAME) and BIOLOG analyses (completed in 1998).

f) 5 members from 5 states (AR, DE, FL, GA, and NH) determined changes in microbial community structure during phytoremediation of pyrene-contaminated soil (completed in 1999).

g) 3 members from three states (AR, DE, and NH) determined the influence of pyrene on individual microbial populations in soil and rhizosphere (completed in 1999).

h) 14 manuscripts (12 accepted, in press, or published, and 2 submitted) are the result of the collaboration between two regional members. Collaborations include DE and GA (5 manuscripts), AR and NH (4 manuscripts), DE and ID (2 manuscripts), USDA and WV (2 manuscripts), and MD and Canada (1 manuscript). These manuscripts, as well as the others identified above, are identified with an asterisk in the section forPublications Issued or Manuscripts Approved for S-262.



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