Titlebook: Genes Involved in Plant Defense; Thomas Boller,Frederick Meins Book 1992 Springer-Verlag Wien 1992 evolution.genes.genetics.microbe.microb

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Regulatory Elements Controlling Developmental and Stress-induced Expression of Phenylpropanoid Geneshemists. The identification of an astounding array of functional phenylpropanoid end products attests to both the ubiquity of this pathway, and to the fortitude of those involved in early and current chemical structural and functional analyses.

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The Use of Resistance Genes in Breeding Epidemiological Considerationsion of breeding for disease resistance depends on whether or not the crop in question is considered sufficiently valuable to support a breeding or selection programme, whether it is short- or long-cycled and whether the end product is consumed indirectly or directly. At one extreme are the annual ce

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An Analysis of Host Range Specificity Genes of , as a Model System for Virulence Genes in Phytobacted xylem), and the ecto- and endorhizospheres (root surface and intercellular spaces between root cortical cells, respectively) are colonised by microbes to varying extents (Agrios, 1988). About 80 species of bacteria are known to interact with plants either beneficially or detrimentally. The consequ

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Pathogenicity Determinants in the Smut Fungi of Cerealsost attack cereal grains and grasses, though they also affect broad leaf plants. Smut fungi can cause serious grain losses because they develop in the kernels, replacing the kernel contents with black masses of sooty spores, from which the term smut is derived (Agrios, 1988). Some of the most common

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Identification of Fungal Genes Involved in Plant Pathogenesis and Host Rangeumber of encouraging results have already emerged and they highlight the power of this approach. In this chapter we will describe some of these techniques and demonstrate with a few selected examples how the application of molecular biology can provide answers to long-standing questions.

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Interactions Between , and Its Host Plant Cellsago that the bacterium can transfer a discrete segment of tumorigenic DNA (T-DNA) to the genome of the plant host (Chilton et aI., 1977, 1980; Willmitzer, 1980) attracted the interest ofa large number of laboratories around the world. This was largely due to the possibility of exploiting this unprec

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Elicitor Recognition and Signal Transductioninations is comparatively small, but these interactions cause signifieant losses in agriculture. Within a susceptible plant species, resistance may be expressed in a number of host cultivars to certain races of a pathogen (cultivar resistance). The biochemieal mechanisms of non-host resistance and c

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The Primary Structure of Plant Pathogenesis-related Glucanohydrolases and Their Genesecies (Clarke and Stone, 1962; Ballance and Manners, 1978; Powning and Irzykiewicz, 1965). The physiological functions of ?-1,3- glucanase and chitinase are not known. Based on the distribution of the enzyme and its putative substrates such as callose, it has been proposed that ?-1,3-glucanases may