Transgenic approaches to microbial disease resistance in crop plants

Current Opinion in Plant Biology

Volumn 1, Issue 4, 1998, Pages 347-352

  Salmeron, John M ^a   Vernooij, Bernard ^a  

^a JEALOTT S HILL RESEARCH STATION   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

TOXIN;

BIOTECHNOLOGY; FUNGUS; GENETICS; MICROBIOLOGY; PATHOGENICITY; PLANT; REVIEW; TRANSGENIC PLANT;

BIOTECHNOLOGY; FUNGI; PLANTS; PLANTS, GENETICALLY MODIFIED; TOXINS, BIOLOGICAL;

EID: 0032130148     PISSN: 13695266     EISSN: None     Source Type: Journal    
DOI: 10.1016/1369-5266(88)80058-X     Document Type: Article

References (8)

1. Hammond-Kosack KE, Jones JDG: Plant disease resistance genes. Annu Rev Plant Physiol Plant Mol Biol 1997, 48:575-607.
2. Cai D, Kleine M, Kffle S, Harloff H-J, Sandal NN, Marcker KA, Klein-Lankhorst RM, Salentijn EMJ, Lange W, Stiekema WJ: Positional cloning of a gene for nematode resistance in sugar beet Science 1997, 275:832-834. The paper describes the positional cloning, from an important crop, of a resistance gene active against an economically important pest. Translocation lines and Agrobacterium rhizogenes-mediated transformation were two of the tools used to circumvent the lack of sophisticated genetic methodology for sugarbeet.
3. Wang G-L, Song W-Y, Ruan D-L, Sideris S, Ronald PC: The cloned gene, Xa21, confers resistance to multiple Xanthomonas oryzae pv. oryzae isolates in transgenic plants. Mol Plant-Microbe Interact 1996, 9:850-855.
4. Anderson PA, Lawrence GJ, Morrish BC, Ayliffe MA, Finnegan J, Bus JG: Inactivation of the flax rust resistance gene M associated with loss of a repeated unit within the leucine-rich repeat coding region. Plant Cell 1997, 9:641 -651. Cloning of the M disease resistance gene from flax, and molecular analysis reveal a direct repeat within the LRR region. Mutant alleles with loss of recognitional specificity were found to contain deletions resulting in the loss of one of the direct repeats of the LRR.
5. Thomas CM, Jones DA, Parniske M, Harrison K, Balint-Kurti P, Hatzixanthis K, Jones JDG: Characterization of the tomato Cf-4 gene for resistance to Cladosporium futvum identifies a domain which determines recognitional specificity in CM and Cf-9. Plant Cell 1997, 9:2209-2224. A comparison of amino acid sequences of two Cf proteins shows that almost all amino acid differences lie within the N-terminal portion of the LRR. Most of the observed differences occur in residues of the LRR predicted to be exposed to the solvent, consistent with the proposed role of the LRR in pathogen recognition.
6. Parniske M, Hammond-Kosack KE, Golstein C, Thomas CM, Jones DA, Harrison K, Wulff BBH, Jones JDG: Novel disease resistance specificities result from sequence exchange between tandemly repeated genes at the Cf-4/9 locus of tomato. Cell 1997, 91:821-832. This paper presents a detailed molecular characterization of the Cf gene cluster in cultivars with different recognitional specificities. Comparison of a large number of the predicted protein products reveals hypervariability among residues within the LRR that are predicted to be solvent exposed. The authors also observe a higher than normal rate of nonsynonomous nucleotide substitutions in this area, suggestive of selection for sequence diversification.
7. Scofield SR, Tobias CM, Rathjen JP, Chang JH, Lavelle DT, Michelmore RW, Staskawicz BJ: Molecular basis for gene-for-gene specificity in bacterial speck disease of tomato. Science 1996, 274:2063-2065.
8. Tang X, Frederick RD, Zhou J, Halterman DA, Jia Y, Martin GB: Initiation of plant disease resistance by physical interaction of avrPto and Pto kinase. Science 1996, 274:2060-2063.