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1

The genus Orobanche L. (Orobanchaceae) in the Małopolska Upland (S Poland): distribution, habitat, host preferences, and taxonomic problems

100%
Piwowarczyk R.
Biodiversity: Research and Conservation
|
2012
|
tom 26
2
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Orobanche pallidiflora Wimm. and Grab. in Poland: distribution, habitat and host preferences

100%
Piwowarczyk R., Chmielewski P., Gierczyk B., Piwowarski B., Stachyra P.
Acta Societatis Botanicorum Poloniae
|
2010
|
tom 79
|
nr 3
The paper presents ten new localities of Orobanche pallidiflora Wimm. & Grab. from Poland (Middle Roztocze, Równina Bełska plain, Wyżyna Malopolska upland, Góry Kaczawskie Mts and Western Bieszczady Mts). Information on hosts, abundance and habitat preferences at the new localities is given and a supplemented map of the distribution in Poland is included.
3

Behavioural response to an unsuitable host plant in the gypsy moth [Lymantria dispar L.]

100%
Lazarevic J., Peric-Mataruga V., Prolic Z., Tucic N.
Folia Biologica
|
2003
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tom 51
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nr 1-2
4

Tortoise beetles of Rawalpindi-Islamabad, Pakistan and their host preferences (Coleoptera: Chrysomelidae: Cassidinae)

80%
Sultan A., Borowiec L., Rafi M. A., Ilvas M., Naz F., Shehzad A.
Genus. International Journal of Invertebrate Taxonomy
|
2008
|
tom 19
|
nr 1
5
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Host specialization of IS-group isolates of Heterobasidion annosum to Scots pine, Norway spruce and common fir in field inoculation experiments

80%
Werner A., Lakomy P.
Dendrobiology
|
2002
|
tom 47
Two field inoculation experiments were conducted to study intraspecific variation in vertical spread of the P-, S- andF-IS-group isolates of Heterobasidion annosum in stems of Pinus sylvestris, Picea abies and Abies alba. Host-plants were inoculated with four isolates of each IS group after 10 mm long wounds made with a sterile knife (experiment 1) or 3 mm diameter radial holes made with a drill (experiment 2). On pine, the P-group isolates were more virulent than S andF isolates in terms of infection frequency, mortality rate andvertical spread in sapwood. The S isolates had higher incidence of infection and extensive growth on spruce than on pine. The F isolates were significantly less virulent on pine andspruce than on fir. Vertical spreadof all IS groups on fir was similar. In spite of between-strain-within-IS group variation in vertical spreadon each host, the study provided strong evidence for the occurrence of intraspecific differences in the host preference. In the interspecific analysis with three hosts, the isolates, IS groups andhost × strain andhost × IS group interactions accountedfor most of the explainedvariation, while host-plants accountedfor the smallest portion of the variance.
6
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Genetic polymorphism of Polish strains of Gremmeniella abietina and Brunchorstia pinea var. cembrae

70%
Kraj W.
Dendrobiology
|
2009
|
tom 61
13-21
Thirty-three type A strains of G. abietina from diseased shoots or needles of P. sylvestris, P. nigra and P. armandii and three strains of Brunchorstia pinea var. cembrae from P. mugo were isolated from four regions of Poland differing with respect to climatic conditions. Genetic polymorphism of the mitochondrial small subunit rRNA (mtSSU rRNA), ribosomal RNA fragment including ITS1, 5.8S and ITS2 and glyceraldehyde phosphate dehydrogenase (GPD) gene was examined by the PCR-RFLP method. Genetic distance was ascertained with respect to B. pinea var. cembrae strains from G. abietina isolated from the examinedpine species (average Nei coefficient 0.137). The smallest genetic distance occurred between the strain groups of G. abietina isolated from P. nigra and P. armandii (0.059) and P. nigra and P. sylvestris (0.061), whereas the highest occurred between the groups of strains deriving from P. armandii and P. sylvestris (0.096). The impact of geographic distance on genetic distance between groups of strains from individual regions has been shown. G. abietina strains originating from mountainous areas were more distanced genetically (on average 0.031) from populations from other regions (Nei genetic distance 0.023). The main factors influencing genetic differences of the pathogen were specificity with respect to the species of the host plant and climate conditions, whereas geographic distance had lesser significance.
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