Temat: hyperparasite - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Microscopical observations of Sphaerellopsis filum, a parasite of Puccinia recondita
Obserwacje mikroskopowe nad Sphaerellopsis filum, pasozytem Puccinia recondita
Autorzy:: Plachecka, A
Powiązania:: https://bibliotekanauki.pl/articles/28281.pdf
Data publikacji:: 2005
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: hyperparasitism
microscopy
parasite
morphology
Puccinia recondita
fungi
Sphaerellopsis filum
parasite-hyperparasite contact
Opis:: Sphaerellopsis filum is a well-known parasite associated with many species of rust fungi. It is of frequent occurrence as parasite of cereal rusts: Puccinia recondita, P. coronata, P. graminis, P hordei and P. striiformis. Uredial sori of Puccinia recondita f.sp. tritici infected with Sphaerellopsis filum were examined by light and scanning microscope to determine morphology of hyperparasite as well as the parasite-hyperparasite contact. The microscopical examination of infected uredinia clearly showed the intimate connection of S. filum with its rust host.
Sphaerellopsis filum jest pospolitym pasożytem wielu gatunków grzybów rdzawnikowych. Bardzo często występuje jako pasożyt rdzy zbożowych takich jak: Puccinia recondita, P. coronata, P. graminis, P. hordei i P. striiformis. Przeprowadzono analizę morfologiczną grzyba Sphaerellopsis filum oraz struktur anatomicznych służących temu nadpasożytowi do kontaktu z grzybem rdzawnikowym Puccinia recondita. Badania wykonano przy użyciu mikroskopu świetlnego i skaningowego. Opisano struktury morfologiczne - ssawki - wskazujące na związek pasożytniczy między grzybnią S. filum i zarodnikami P. recondita.
Źródło:: Acta Agrobotanica; 2005, 58, 1
0065-0951
2300-357X
Pojawia się w:: Acta Agrobotanica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Ampelomyces hyperparasites - occurrence and effect on the development of ascomata of Erysiphales species under conditions of anthropopressure
Autorzy:: Sucharzewska, E.
Dynowska, M.
Kubiak, D.
Ejdys, E.
Biedunkiewicz, A.
Powiązania:: https://bibliotekanauki.pl/articles/58874.pdf
Data publikacji:: 2012
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: Ampelomyces
fungi
hyperparasite
occurrence
development
ascoma
Erysiphales
powdery mildew
anthropopressure
urban environment
Opis:: Fungi of the genus Ampelomyces are the major antagonists of Erysiphales fungi being a significant group of phytopathogens. The hyperparasites attack various developmental stages of powdery mildews. As a result the infested ascomata do not reach the stage of maturity, do not form appendages nor ascospores, which is linked with a reduction of the source of primary infections. Studies conducted so far have mainly been devoted to Ampelomyces fungi application in the biological control of powdery mildews on crops, whilst a few only have been focused on the ecology of these mycoparasites on Erysiphales fungi infecting plants, especially in the urban environment. The present study addresses the natural occurrence and effect of Ampelomyces fungi on the development of ascomata of powdery mildews species. The material was collected in 2005–2009 in several cities of the northeastern Poland. First time ever Ampelomyces spores are reported in mature ascomata of Erysiphales with fully developed appendages. This phenomenon has been observed in the case of two species, viz.: Erysiphe flexuosa on Aesculus spp. and E. vanbruntiana var. sambuci-racemosae on Sambucus racemosa and is presumably linked with improved implementation, propagation and probably better survival during winter months.
Źródło:: Acta Societatis Botanicorum Poloniae; 2012, 81, 3
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Occurrence of the fungi from the genus Ampelomyces – hyperparasites of powdery mildews (Erysiphales) infesting trees and bushes in the municipal environment
Autorzy:: Sucharzewska, E.
Dynowska, M.
Kempa, A.
Powiązania:: https://bibliotekanauki.pl/articles/57750.pdf
Data publikacji:: 2011
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: occurrence
fungi
Ampelomyces
hyperparasite
powdery mildew
Erysiphales
tree
bush
municipal environment
life cycle
Opis:: The studies refer to the phenomenon of hyperparasitism in the municipal environment. The paper presents the occurrence of fungi of the genus Ampelomyces on Erysiphales – important group of phytopathogenic fungi. For the first time in Poland analyzed degree of infestation of Erysiphales mycelium by Ampelomyces and effect of the hyperparsites on the degree of infestation plants by Erysiphales. The high participation of the Ampelomyces was noted in each year of the study. Substantial differences were noted in the occurrence of Ampelomyces depending on the developmental stage of the host fungi and considerable differences in the prevalence of the hyperparasites on particular Erysiphales species. In all cases examined, the mean index of infestation of host plants by Erysiphales was higher than the mean degree of infestation of powdery mildew mycelium by Ampelomyces. The results indicate that under natural conditions they do not play any significant role in the reduction of the degree of infestation of host plants by Erysiphales and do not disturb drastically their life cycle.
Źródło:: Acta Societatis Botanicorum Poloniae; 2011, 80, 2
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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