173 results about "Bremia lactucae" patented technology

A method for obtaining a plant, in particular a cultivated lettuce plant (L. sativa), with a lasting resistance to a pathogen, in particular Bremia lactucae, comprising of providing one or more specific DNA markers linked to one or more resistance genes, determining the presence of one or more resistance genes in a plant using these DNA markers, subsequently crossing a first plant comprising one or more resistance genes with a second plant comprising one or more resistance genes, and selecting from the progeny a plant in which one or more resistance genes are present by using the DNA markers. The invention further relates to the plants obtained with this method, seeds and progeny of these plants, as well as progeny thereof.

The present invention relates to a lettuce cultivar having resistance to downy mildew (Bremia lactucae) and which has an extraordinary high number of green, round-shaped leaves. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 79-22 RZ, referred to as Socrates, representative seed having been deposited under NCIMB Accession No. 41325.

The present invention relates to a lettuce cultivar having resistance to downy mildew (Bremia lactucae Regel), currant-lettuce aphid (Nasonovia ribis-nigri) and lettuce mosaic virus (LMV), and which has green, deeply-incised, nicely-frilled leaves. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 79-88 RZ, representative seed having been deposited under NCIMB Accession No. 41615.

The present invention relates to a lettuce variety NUN 9044 LT (referred to as “REDGLACE”) having resistance against at least strains Bl: 1 to Bl: 26 of downy mildew (Bremia lactucae) and mature leaves which exhibit red color throughout their apical part. The invention further relates to methods for producing the new lettuce variety and representative seed having been deposited under Accession No. NCIMB ______.

The present invention relates to a Lactuca sativa L. var. longifolia Lam seed designated as 41-53 RZ, which has leaves with a solid main vein, narrow base leaves, and exhibits resistance against downy mildew (Bremia lactucae Regel), currant-lettuce aphid (Nasonovia ribisnigri) and lettuce mosaic virus (LMV). The present invention also relates to a Lactuca sativa L. var. longifolia Lam plant produced by growing the “41-53 RZ” seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 41-53 RZ.

The present invention relates to a Lactuca sativa L. var. longifolia Lam seed designated as 41-49 RZ, which has leaves with a hollow main vein, broad base leaves, and exhibits resistance against downy mildew (Bremia lactucae Regel), currant-lettuce aphid (Nasonovia ribisnigri), corky root (Sphingomonas suberifaciens) and lettuce mosaic virus (LMV). The present invention also relates to a Lactuca sativa L. var. longifolia Lam plant produced by growing the “41-49 RZ” seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 41-49 RZ.

The present invention relates to a Lactuca sativa seed of the Latin type designated 41-144 RZ, which may exhibit a combination of traits including resistance against downy mildew (Bremia lactucae) races Bl:1 to Bl:27 and CA-I to CA-VIII, currant-lettuce aphid (Nasonovia ribisnigri) biotype Nr:0, corky root race CA1, and lettuce mosaic virus (LMV) race LMV:1. The present invention also relates to a Lactuca sativa plant produced by growing the 41-144 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 41-144 RZ.

The present invention relates to a Lactuca sativa seed designated 45-101 RZ, which may exhibit a combination of traits including resistance to downy mildew (Bremia lactucae) races Bl:1 to Bl:31 and CA-I to CA-VIII, currant lettuce aphid (Nasonovia ribisnigri) biotype Nr:0, lettuce mosaic virus (LMV), as well as having a medium head size, large outer leaves, and dull to moderately glossy leaves. The present invention also relates to a Lactuca sativa plant produced by growing the 45-101 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 45-101 RZ.

The present invention relates to a Lactuca sativa seed designated 79-65 RZ, which exhibits a combination of traits including resistance against downy mildew strains B1:1 to B1:31, CA-I to CA-VIII (Bremia lactucae), currant-lettuce aphid (Nasonovia ribisnigri) biotype Nr:0, and lettuce mosaic virus (LMV), as well as having intensely red, deeply incised, three-dimensional leaves, and a medium to small plant size. The present invention also relates to a Lactuca sativa plant produced by growing the 79-65 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 79-65 RZ.

The present invention relates to a Lactuca sativa seed designated 79-25 RZ, which exhibits resistance to downy mildew races Bl:1 to Bl:28 and CA-I, CA-IIA, CA-IIB, CA-III to CA-VIII (Bremia lactucae Regel), as well as deeply red, crisp, deeply-incised, nicely-filled leaves, and a small plant size. The present invention also relates to a Lactuca sativa plant produced by growing the 79-25 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 79-25 RZ.

The present invention relates to a Lactuca sativa seed designated 41-115 RZ, which may exhibit a combination of traits including resistance against downy mildew (Bremia lactucae Regel) races B1:1 to B1:30 and Ca-I to Ca-VIII, currant lettuce aphid (Nasonovia ribisnigri) biotype Nr:0, and corky root rot (Sphingomonas suberifaciens), as well as very thick, weakly blistering, mature non-flabellate leaves having a shallowly dentate leaf margin, and broad base leaves. The present invention also relates to a Lactuca sativa plant produced by growing the 41-115 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 41-115 RZ.

The invention discloses lactobacillus for inhibiting PEDV (Porcine Epidemic Diarrhea Virus) adhesion and belongs to the field of biological high techniques. The classification name of the strain NAU2015807129 is Lactobacillus reuteri, and is preserved in the China General Microbiological Culture Collection Center in March 27, 2017, and the strain preservation number is CGMCC No.13934. The strain is a feed probiotic which is approved by the Department of Agriculture, can be produced as a probiotic additive of pigs by using fermentation techniques, and can be applied to prevention and treatmenton porcine epizootic diarrhea. The strain NAU2015807129 for inhibiting PEDV adhesion, which is disclosed by the invention, can be prepared into a medicine or a food additive, can be used for preventing and treating porcine epizootic diarrhea, and has great application values.