Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Genetics of Powdery Mildews (1966)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Phytopathology 4 (1966), S. 269-288 
    Details
    ISSN: 0066-4286
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.py.04.090166.001413
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Reactions of Hordeum spontaneum to infection with two cultures of Puccinia hordei from Israel and United States (1990)
    Springer
    Euphytica 49 (1990), S. 169-175 
    Details
    ISSN: 1573-5060
    Keywords: Hordeum vulgare ssp. spontaneum ; Hordeum spontaneum ; wild barley ; Puccinia hordei ; leaf rust ; Erysiphe graminis hordei ; Powdery mildew ; Israel ; host resistance ; pathogen virulence ; Ornithogalum species
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The reactions to infection with two cultures of Puccinia hordei were determined for 292 Hordeum spontaneum (syn. H. vulgare ssp. spontaneum) accessions, collected at 16 sites which encompassed the ecological range of H. spontaneum in Israel. Culture Tel-Aviv was from Israel and culture 57.19 was from the United States. Fifty-two percent of the accessions were resistant to culture Tel-Aviv and 67% were resistant to culture 57.19. Forty-three percent of the accessions were resistant to both cultures. The average infection type (IT) of accessions within sites ranged from 2.7 to 7.5 on a 0–9 rating scale. The results showed that the presence of Ornithogalum species, the alternate hosts of P. hordei, may increase the percentage of H. spontaneoum accessions resistant to P. hordei. More accessions were resistant at sites where humidity at 1400 was higher, the annual evaporation was lower, and where the glumes were shorter. Kernel weight and annual rainfall was not correlated with resistance. A lower percentage of H. spontaneum accessions were resistant to P. hordei culture Tel-Aviv from Israel than to culture 57.19 from the United States. In a previous study a lower percentage of H. spontaneum accessions also was found to be resistant to a culture of Erysiphe graminis hordei from Israel than to cultures from other countries. Previous studies also have shown that cultures of P. hordei and E. graminis hordei from Israel have many genes for virulence on barley, and that H. spontaneum accessions from Israel have many genes for resistance to these two pathogens. Previous results and the results reported in this paper support the hypothesis of coevolution of resistant host genes and virulent pathogen genes where hosts and pathogens have coexisted for many thousand years.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00027267
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Patterns of resistance of Israeli wild emmer wheat to pathogens I. Predictive method by ecology and allozyme genotypes for powdery mildew and leaf rust (1985)
    Springer
    Genetica 67 (1985), S. 209-222 
    Details
    ISSN: 1573-6857
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The association of ecological factors and allozyme markers with genotypes of tetraploid wild emmer wheat,Triticum dicoccoides, varying in resistance to four cultures of the pathogenErysiphe graminis tritici, and to one culture ofPuccinia recondita tritici, which incite the diseases powdery mildew and leaf rust respectively, were explored theoretically and practically. The study involved 233 accessions comprising 10 populations representing the ecological range ofT. diococcoides in Israel. Our results indicate that genetic polymorphism for resistance to both pathogens is structured geographically, and is predictable by climatic as well as allozymmc markers. Three variable combinations of water factors and temperature differentials significantly explain 0.27 and 0.14 of the spatial variance for resistance to powdery mildew and leaf rust, respectively, suggesting the involvement of natural selection. Several allozyme genotypes, singly, or in combination, are significantly associated with disease resistance. We conclude thatT. dicoccoides populations in Israel, which grow in the center of diversity of the species, contain large amounts of unexploited disease resistant genotypes. The populations could be effectively screened and utilized for producing resistant cultivars by means of ecological factors and allozyme markers as predictive guidelines.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02424492
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    A new virulent strain of Puccinia hordei (1978)
    Springer
    Euphytica 27 (1978), S. 185-189 
    Details
    ISSN: 1573-5060
    Keywords: Puccinia hordei ; brown barley leaf rust ; Ornithogalum sp. ; alternate host ; Hordeum vulgare ; barley
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Four cultures of Puccinia hordei isolated from the alternate Ornithogalum hosts in Israel were virulent on seedlings of barley cultivars carrying resistance genes Pa, Pa2, Pa2 + Pa5, Pa2 + Pa6, Pa3, Pa4, and Pa7. Cultures with such a spectrum of virulence have never been reported. The cultures remained stable through 20 successive inoculation and isolation cycles. One of the cultures, T-40SS, retained its specific virulence after selfing on the alternate host. The evolution of virulent races of obligate parasites in the centers of origin of their hosts is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00039134
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Differentiation of resistance genes at the M1-a locus in six pairs of isogenic barley lines (1973)
    Springer
    Euphytica 22 (1973), S. 189-196 
    Details
    ISSN: 1573-5060
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Five pairs of lines, nearly isogenic except for genes for resistance and susceptibility to culture CR3 of Erysiphe graminis (DC). Merat hordei Em. Marchal, developed from the barley (Hordeum vulgare L.) varieties Algerian, Franger, Durani, Rupee, and Multan, had five different genes at the M1-a locus on chromosome 5 conditioning resistance to culture CR3. The resistant isogenic lines developed from Durani, Rupee, and Multan each had one additional resistance gene, closely linked in coupling to their resistance gene at the M1-a locus, conditioning resistance to culture 63.5 or 64.54. The sixth pair of isogenic lines, developed from the variety Long Glumes, had three resistance genes: one at the M1-a locus, a second closely linked in coupling to the first, and a third gene. The first and the third genes in Long Glumes appear to be the same as the two genes in Multan. The outstanding resistance to E. graminis hordei of most of the donor varieties for the isogenic lines is explained by their possessing two or more resistance genes. The presence of approximately 20 different genes in and around the M1-a locus suggests that there is a cluster of closely linked resistance loci in that region of chromosome 5.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00021572
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Resistance of Triticum dicoccoides to infection with Erysiphe graminis tritici (1984)
    Springer
    Euphytica 33 (1984), S. 41-47 
    Details
    ISSN: 1573-5060
    Keywords: Truticum dicoccoides ; wild emmer wheat ; Erysiphe graminis tritici ; powdery mildew ; resistance ; Israel ; germplasm ; wheat ; collection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The reactions of 233 Triticum dicoccoides acessions, collected at 10 sites in Israel and elsewhere, to infection with cultures of Erysiphe graminis tritici, were determined. The reactions indicated that the number of sources of resistance to E. graminis tritici which can be obtained from T. dicoccoides plants growing wild in Israel and elsewhere is almost unlimited. One hundred and fourteen or 49% of the accessions were resistant, and 137 or 59% of the accessions were resistant or moderately resistant to infection with four cultures of E. graminis tritici which possess the virulence genes corresponding to most of the identified resistance genes in wheat. Accessions collected at sites with marginal habitats where T. dicoccoides grows poorly and has lower grain weight, were more susceptible than were accessions collected at sites with an optimal habitat for growth of T. dicoccoides. The results agreed with those in a previous study with Hordeum spontaneum, and indicate that to obtain H. spontaneum or T. dicoccoides accessions with the highest level of resistance to the powdery mildew pathogens, plants should be collected at sites in ecological and geographic regions where those two species occupy optimum habitats and are exposed to the powdery mildew pathogens.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00022748
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...