Silicon reduces bacterial speck development on tomato leaves
نویسندگان
چکیده
منابع مشابه
Marker-assisted Selection for Combining Resistance to Bacterial Spot and Bacterial Speck in Tomato
The lack of resistance to bacterial diseases increases both the fi nancial cost and environmental impact of tomato (Lycopersicon esculentum Mill.) production while reducing yield and quality. Because several bacterial diseases can be present in the same fi eld, developing varieties with resistance to multiple diseases is a desirable goal. Bacterial spot (caused by four Xanthomonas Dowson specie...
متن کاملGenetic and Morpho-Agronomic Evaluation of New Tomato Breeding Lines Resistant to Bacterial Speck (Pseudomonas Syringae pv. Tomato)
A breeding program was initiated at the Research Institute of Vegetable Crops, Skierniewice, Poland to select new tomato lines resistant to bacterial speck (Psedomonas syringae pv. tomato (PST) and suitable for field growing. Two tomato cultivars with good agronomic characteristics Luban and Rumba were crossed with resistant to PST ‘Ontario 7710’. Then backcross and pedigree breeding procedures...
متن کاملMolecular basis of Pto-mediated resistance to bacterial speck disease in tomato.
The Pto gene in tomato confers gene-for-gene resistance to Pseudomonas syringae pv. tomato, the causative agent of bacterial speck disease. Pto was first introgressed from a wild species of tomato into cultivated tomato varieties over 60 years ago and is now widely used to control speck disease. Cloning of the Pto gene revealed that it encodes a cytoplasmically localized serine-threonine protei...
متن کاملMolecular Basis of Gene-for-Gene Specificity in Bacterial Speck Disease of Tomato
Transient expression of the Pseudomonas syringae avirulence gene avrPto in plant cells resulted in a Pto-dependent necrosis. The AvrPto avirulence protein was observed to interact directly with the Pto resistance protein in the yeast two-hybrid system. Mutations in the Pto and avrPto genes which reduce in vivo activity had parallel effects on association in the two-hybrid assay. These data sugg...
متن کاملOccur in Bacterial Speck-Susceptible and Fenthion-lnsensitive Tomato Cultivars and Encode Active Protein Kinases
The Pto gene was derived originally from the wíld tomato species Lycopersicon pimpinellifolium and confers resistance to Pseudomonas syringae pv tomato strains expressing the avirulence gene avrPto. The Fen gene is also derived from L. pimpinellifolium and confers sensitivity to the insecticide fenthion. We have now isolated and characterized the alleles of Pto and Fen from cultivated tomato, L...
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ژورنال
عنوان ژورنال: Tropical Plant Pathology
سال: 2013
ISSN: 1983-2052
DOI: 10.1590/s1982-56762013005000021