Rijk Zwaan Zaadteelt En Zaadhandel B.v.

Petrus Lambertus Josephus Egelmeers

Cornelis Maria Petrus Van Dun

Robert Helene Ghislain Dirks

Jacobus Petrus Cornelis De Wit

Franciscus Hermanus Carree

Wilhelmus Petrus Adrianus Roeland Voermans

Joannes Wilhelmus Schut

The present invention relates to a male sterile Rucola plant obtainable by a method which may comprise the steps of providing fertile pollen fromto the stamen of plants that contain CMS cytoplasm, allowing plant embryo's to develop, isolating the embryo's, raising the embryo's in tissue culture to produce plant lets, growing plants from the plantlets; selecting plants that are male sterile and female fertile; backcrossing these plants with fertile pollen from; selecting a plant that is male sterile and female fertile; and optionally repeating steps g) and h).

Cytoplasmic male sterile Rucola

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.

Plants with reduced susceptibility to pathogenic oomycetes

Growing community of inventors

Oud Gastel, Netherlands

Petrus Lambertus Josephus Egelmeers