Resistance to powdery mildew in mutant lines of the susceptible wheat cultivar Hobbit 'sib'

Autor:	G. J. Jellis, T. W. Hollins, R. Stratford, V. Duggal
Rok vydání:	2000
Předmět:	Hypha Inoculation Mutant food and beverages Plant Science Horticulture Biology Plant disease resistance Haustorium Botany Genetics Cultivar Agronomy and Crop Science Powdery mildew Pathogenesis-related protein
Zdroj:	Plant Pathology. 49:468-476
ISSN:	1365-3059 0032-0862
Popis:	Mutant lines of the wheat (Triticum aestivum) cultivar Hobbit ‘sib’, produced by irradiation with fast neutrons, were evaluated for their response to powdery mildew (Erisyphe graminis f.sp. tritici) at various growth stages to identify and characterize resistance. Two mutants, I3-54 and I3-48, were found to be significantly more resistant than Hobbit ‘sib’, with the resistance being expressed in both seedlings and adult plants. Fungal hyphal development was slower in both the mutants than in Hobbit ‘sib’ between 18 and 24 h after inoculation, and fewer haustoria were formed in the mutants, particularly in I3-54, 72 h after inoculation. Constitutive expression of a thaumatin-like protein gene was detected in both I3-48 and I3-54 but not in Hobbit ‘sib’.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ea3231d9a92ed49f56fdd53ea763129f https://doi.org/10.1046/j.1365-3059.2000.00471.x Zobrazit plný text záznamu Plný text