Please use this identifier to cite or link to this item: http://dx.doi.org/10.25673/93413
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dc.contributor.authorRuske, Erikager
dc.contributor.authorDörfelt, Heinrichger
dc.date.accessioned2022-11-16T08:22:06Z-
dc.date.available2022-11-16T08:22:06Z-
dc.date.issued2010
dc.identifier.issn2195-531X
dc.identifier.otherBd. 43 Nr. 2 (2010): N.F. Hercynia
dc.identifier.urihttps://opendata.uni-halle.de//handle/1981185920/95369-
dc.identifier.urihttp://dx.doi.org/10.25673/93413-
dc.description.abstractRuske, E.; Dörfelt, H.: Studies on the life cycle of the rust fungus Gymnosporangium sabinae. – HercyniaN. F. 43 (2010): 277–298.Gymnosporangium sabinae is a heteroecious rust fungus of economic importance, which can cause seriousdamages on pear-trees. Its life cycle was already clarified in the 19th century. In Europe, Juniperussabina is the main host for the dikaryont and Pyrus communis for the haplont. The host plants and thefungus are not autochthonous in Central Europe. Juniperus sabina is a widespread ornamental shrub andmedical plant, and Pyrus communis is a popular fruit-tree.The telia, which are conspicuous when mature, contain thick-walled as well as thin-walled teliospores.The thick-walled teliospores germinate with basidia, the thin-walled ones often with hyphae. In rarecases undivided teliospores may germinate with hyphae before the development of the transverse septa.Caryological examinations show that the germination occurs after karyogamy and meiosis in each cell ofteliospores. The teliospores that germinate with hyphae are imbedded in a gelatinous mass generated bythe gelatinising pedicels of the teliospores, and they are able to develop mycelia in this gelatinous mass.This mass forms mucous drops falling down from the infected twigs of the dikaryont host which oftenreach, in this way, twigs of lower levels. It is assumed that the germinating hyphae of such teliosporesare able to reinfect the dikaryont host after somatogamic dikaryotisation.The basidiospores germinate with hyphae or repetitively with secondary spores.Key words: Basidiomycota, Uredinomycetes, Pucciniales, Gymnosporangium, life cycle, karyogamy,germination of teliospores, germination by repetitioneng
dc.language.isoeng
dc.publisherHercynia - Ökologie und Umwelt in Mitteleuropaeng
dc.relation.ispartofHercynia - Ökologie und Umwelt in Mitteleuropaeng
dc.rights.urihttps://creativecommons.org/licenses/by-nd/4.0/
dc.subject.ddc000
dc.titleStudien zur Lebensgeschichte des Rostpilzes Gymnosporangium sabinaeger
dc.typeArticle
local.bibliographicCitation.journaltitleHercynia - Ökologie und Umwelt in Mitteleuropaeng
local.bibliographicCitation.volume43
local.bibliographicCitation.issue2
local.bibliographicCitation.pagestart277
local.bibliographicCitation.pageend298
local.openaccesstrue
dc.description.noteDie Hercynia publiziert Originalbeiträge mit dem Schwerpunkt Ökologie (mit ihren vielseitigen Aspekten der Biodiversität), Botanik, Zoologie, Geologie und Geografie, den anwendungsorientierten Bereichen des Natur- und Umweltschutzes, sowie der Land- und Forstwirtschaft.eng
local.bibliographicCitation.urihttps://public.bibliothek.uni-halle.de/hercynia/article/view/1701/version/1687
local.accessrights.dnbfree
dc.identifier.externalojs146
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