Plants with reduced susceptibility to pathogenic oomycetes

Details Plants with reduced susceptibility to pathogenic oomycetes Plants with reduced susceptibility to pathogenic oomycetes

2011-08-30

2011-08-30

Ibrahim, Medina A (Department: 1638)

Multicellular living organisms and unmodified parts thereof and

Plant, seedling, plant seed, or plant part, per se

Higher plant, seedling, plant seed, or plant part

C800S305000, C800S298000, C800S295000, C800S276000

Reexamination Certificate

active

08008548

ABSTRACT:
The present invention relates to a for obtaining a plant showing a reduced susceptibility towards infection with a pathogen, in particular an oomycete, comprising treating MO seeds of a plant species to be modified with a mutagenic agent to obtain M1 seeds and growing plants therefrom the thus obtained M1 seeds to obtain M1 plants, inoculation of the thus obtained M1+n plants with the pathogen and selecting plants that show a reduction or absence of sporulation of the pathogen as plants having a reduced susceptibility phenotype. The invention further relates to plants, seeds, pollen, cells and tissues that have the reduced susceptibility towards oomycetes.

REFERENCES:
patent: WO 02/38727 (2002-05-01), None
Maleck, Klaus et al. “Isolation and Characterization of Broad-Spectrum Disease-ResistantArabidopsisMutants” Genetics (Apr. 2002) pp. 1661-1671, vol. 160, No. 4.
Dietrich et al. “ArabidopsisMutants Simulating Disease Resistance Response” Cell, Cell Press (May 20, 1994) pp. 565-577, No. 77.
Okubara, Patricia et al. “A Transgenic Mutant ofLactuca sativa(lettuce) with a T-DNA Tightly Linked to Loss of Downy Mildew Resistance” Molecular Plant-Microbe Interactions (Nov. 1997) pp. 970-977, vol. 10, No. 8.
Lebeda A. et al. “Host-Parasite Specificity and Defense Variability in theLactucaSPP.—Bremia lactucaePathosystem” Journal of Plant Pathology, Edizioni ETS, Pisa, IT. (2001) pp. 25-35, vol. 83, No. 2.
Maisonneuve B. et al. “Rapid Mapping of Two Genes for Resistance to Downy Mildew fromLactuca serriolato Existing Clusters of Resistance Genes” Theoretical and Applied Genetics, Springer, Berlin, DE. (1994) pp. 96-104, vol. 89, No. 1.
Yuen J. et al. “A New Gene for Resistance toBremia lactucae”Phytopathology, St. Paul, MN, US. (1983) pp. 159-162, vol. 73, No. 2.

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