“This is an inspirational book, excellent in concept and timely in
appearance, describing the transition from a problem in plant pathology to the
expanding vista of genetic engineering of crop plants…this book will be of
general interest to plant scientists, and to historians of science. Scientists
at an early stage in their career should be inspired as I was by some of the
commentaries; the best of them give insight into the way science is done and the
standards to which all scientists should aspire.”
-- Australian Plant Pathology
“… this book really grabbed me and I got a great deal of enjoyment from
reading it. I suspect many will follow avidly how the mysteries of this
bacterium were unraveled and the development of its starring role in plant
biotechnology but for me the commentaries themselves are a fascinating insight
into how research was, and probably still is conducted. The editors/authors are
to be congratulated on reproducing their enthusiasm for research and the joy of
discovery.”
-- Microbiology Today
“This is an excellent book-a
necessity for those working on Agrobacterium, and also of use to other
pathologists and molecular biologists. For students, this book would be
extremely important.”
-- Plant Pathology
“…should be considered an
invaluable, core addition to government, corporate, and academic research and
reference collections in this specialized field of biological and
biotechnological research.”
-- The Midwest Book Review
This anthology traces the fascinating progress from plant pathology to biotechnology through 38 scientific papers on
Agrobacterium, published over the past century. Included are the seminal scientific papers in the biology and application of
Agrobacterium with several introductory commentaries by those involved in the original work. The commentaries give background to the papers, explain the problems faced, and the techniques used, providing insight into the way fundamental research progresses.
Agrobacterium tumefaciens has played a major role in the astounding advances that have been made over the past several decades in the areas of plant genetics, plant molecular biology, and plant genetic engineering. The papers included in this book were integral to the current understanding of the interaction of
Agrobacterium with its hosts, its development into a major player in the genetic engineering of plants, and the biological control of crown gall.
Agrobacterium tumefaciens: From Plant Pathology to Biotechnology is divided into five sections. The first section begins with 1904 when Erwin F. Smith began detailed work on crown gall and considered it to be a plant pathological problem. It explores many of the biological discoveries made over the past century, including the pivotal moment when Armin C. Braun discovered that crown gall was a plant cancer. Other papers cover the beginnings of T-DNA research and the development of vectors to improve the process of transferring T-DNA from bacterium to plant cell. The second section delves further into vector systems and genetic coding for diseases and insect resistance, exploring the evolution of genetic engineering in crops.
The final three sections deal with themes developed from crown gall studies, including “quorum sensing” or population density, the accomplishment of DNA sequencing on one strain of
A. tumefaciens, and the first genetically engineered organism, strain K1026, released for commercial use.
According to Editor, Eugene Nester, “This book should serve as a testimony to the 100 years of research on this remarkable organism, as well as to an international group of investigators who helped reveal secrets of this natural genetic engineer.” Students, professors, plant pathologists, microbiologists, or anyone interested in research and/or the history of plant pathology and biotechnology, will find this collection of papers an intriguing read.
CONTENTS
Biology of Agrobacterium tumefaciens
Century of Pioneering Work
Begins
Armin C. Braun and the Discovery
of Agrobacterium-mediated Transformation of Plant Cells
Treasure the Unexpected
George Michel Morel (1916–1973): Chemist, Botanist, Plant Tissue Culture
Pioneer
Loss of Tumor-inducing
Ability; Discovery of the Ti Plasmid
A Plasmid was Present After All
My Life with Phytohormones
Stable incorporation of plasmid DNA
into higher plant cells
I’m Certainly Glad I was There
Foreign DNA of bacterial plasmid
origin is transcribed in crown gall tumors
An Adventure in Agrobacteriology
The functional organization of
the nopaline A. tumefaciens plasmid
Wow!!! The T-DNA is Integrated
Integration and organization of
Ti plasmid sequences in crown gall tumors
When Toothpicks Mattered: Using
Microbial Genetics and Transposon Tagging to Map the T-DNA
Genetic analysis of crown gall:
Fine structure map of the T-DNA by site-directed mutagenesis
Cross, Count and Calculate!
T-DNA Satisfies Mendelian Rules; How Does Agrobacterium “Know” What is T-DNA on
the Ti Plasmid
Short direct repeats flank the
T-DNA on a nopaline Ti plasmid
Such a Clever Bug
Identification of the signal
molecules produced by wounded plant cells that activate T-DNA transfer
in Agrobacterium tumefacien
Early Events in the T-DNA Transfer
Process
The virD operon of Agrobacterium
tumefaciens encodes a site-specific endonuclease; VirD
Targets T-DNA into the Plant Nucleus;
From Plant Pathogen to Vector for Plants, Yeasts, and Fungi
Trans-kingdom T-DNA transfer from
Agrobacterium tumefaciens to Saccharomyces cerevisiae
Application of A. tumefaciens in Genetic Engineering
A Reckless Decision
The Agrobacterium tumefaciens Ti plasmid as a host vector system for introducing foreign DNA in
plant cells
Shrinking
the Ti P