Molecular Genetics of Plant-Microbe Interactions

1. Front Matter

   Pages I-XXXII

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2. Molecular Genetics of Agrobacterium and Plant Transformation

   1. Front Matter

      Pages 1-1

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   2. Ecology of Agrobacterium: Plasmids and Biovars

      • Kathy Ophel, Allen Kerr

      Pages 3-5

   3. The Agrobacterium Rhizogenes Root-Inducing System

      • F. Richaud, C. Aubry, A. Beyou, F. Boulanger, C. Estramareix, A.-M. Fleury-Guerout et al.

      Pages 6-10

   4. Effect of the Presence of the Plasmid pSA and of Auxin on the Attachment of Agrobacterium Tumefaciens to Plant Host Cells

      • Ann G. Matthysse

      Pages 11-13

   5. Dual Regulation of Virulence Genes of Agrobacterium Plasmid pTiC58

      • P. Rogowsky, T. J. Close, C. I. Kado

      Pages 14-19

   6. Overdrive, A T-DNA Transmission Enhancer on the A. Tumefaciens Tumor-Inducing Plasmid

      • Ernest G. Peralta, Renate Hellmiss, Joon M. Ji, Wendy H. Berger, Walt Ream

      Pages 20-26

   7. Physical Structure and Genetics of the T-DNA in Plants Transformed by Agrobacterium tumefaciens

      • Albert Spielmann, Robert B. Simpson

      Pages 27-31

   8. Mammalian Metallothionein Functions in Plants

      • D. D. Lefebvre, J.-F. Laliberte

      Pages 32-34

   9. Tumorigenesis and root nodulation by Agrobacterium tumefaciens carrying Rhizobium sym plasmids

      • Pauline A. Donaldson, V. N. Iyer

      Pages 35-40

3. Molecular Genetics of Phytopathogenic Bacteria and Fungi

   1. Front Matter

      Pages 41-41

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   2. Cutinase and Pectinase in Host-Pathogen and Plant-Bacterial Interaction

      • P. E. Kolattukudy, Joseph Sebastian, William F. Ettinger, Mark S. Crawford

      Pages 43-50

   3. Siderophore Biosynthesis, Uptake and Effect on Potato Growth of Rhizosphere Strains

      • Peter Weisbeek, Joey Marugg, Gerard van der Hofstad, Peter Bakker, Bob Schippers

      Pages 51-53

   4. A Gene Cluster in Xanthomonas campestris pv campestris Required for Pathogenicity Controls the Excretion of Enzymes

      • J. M. Dow, G. Scofield

      Pages 54-56

   5. Direct Analysis of the Invasiveness of Xanthomonas Campestris Mutants Generated by Tn4431, A Transposon Containing A Promoterless Luciferase Cassette for Monitoring Gene Expression

      • Joe J. Shaw, Clarence I. Kado

      Pages 57-60

   6. Analysis of the Spontaneous Mutation to Avirulence by Pseudomonas Solanacearum

      • Mark A. Schell, Daniel P. Roberts, Timothy P. Denny

      Pages 61-66

   7. Characterization of Pathogenicity Genes of Erwinia Carotovora

      • A. K. Handa, R. A. Bressan, L. Lee, D. J. Charles, R. K. Jayaswal, J. Chiu et al.

      Pages 67-72

   8. Characterization of a Novel Esterase Produced by Plant Pathogenic Streptomyces

      • D. A. R. McQueen, J. L. Schottel

      Pages 73-75

4. Molecular Genetics of the Host (Symbiosis/Pathogenicity)

   1. Front Matter

      Pages 77-77

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   2. Induced Symbiosis Mutants of Pisum Sativum

      • B. E. Kneen, D. Vam Vikites, T. A. Larue

      Pages 79-84

Increased interest in the basic biology of plants and microorganisms stems from the fact that crop productivity is directly affected by plant-microbe interactions. In spite of the fact that plants exist in the environment amongst diverse species of microorganisms, only a few ever establish a direct relationship. Emerging awareness concerning the indirect effect of microbial association on plant growth and the possibility of using one microbe against another for controlling pathogenic interactions is at the genesis of new fields of studies. The primary reason for a microbe to associate with· photoautotrophic organisms (plants) is to tap its nutritional requirements, fixed carbon, as a source of energy. By hook or by crook, a microbe must survive. Some have evolved mechanisms to exploit plants to develop a niche for their biotropic demands. When in contact with a living plant, microorganisms may live in a passive association using exudates from the plant, invade it pathogenically or coexist with it in symbiosis. The plant responds to the interloper, either reacting in a hypersensitive manner to contain the invasion of pathogens, or by inducing a set of genes that leads toward symbiosis, or by simply succumbing to the invader. Thus, prior to contact wi th the plant, mic roorganism is able to sense the presence of the host and activate accordingly a set of genes required for the forthcoming interaction, whether symbiotic or pathogenic.

• Assimilat
• DNA
• Mutant
• Mutation
• Polypeptide
• Promoter
• biosynthesis
• conservation
• gene expression
• genes
• hybridization
• metabolism
• molecular biology
• nitrogen
• pea

• Centre for Plant Molecular Biology, Department of Biolog01y, McGill University, Montréal, Canada

  Desh Pal S. Verma

• Departement de Biochimie, Université de Montréal, Montréal, Canada

  Normand Brisson

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