Chronology of Phytoparasitic Fungi Introduced to Germany and Adjacent Countries

Kreisel, H.; Schöller, M.

doi:10.1111/j.1438-8677.1994.tb00812.x

Cited by 27 publications

(29 citation statements)

References 8 publications

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“…The vast majority of these species may be short lived or emphemeromycetes (Kreisel and Scholler 1994), i.e., species that disappear a short time after introduction even if potential host plants are abundant. Our studies have shown that for microcyclic rust fungi both host and fungal parasite must fulfill certain conditions to allow the fungus to become established and spread successfully over long distances.…”

Section: Resultsmentioning

confidence: 99%

“…Introduced plant parasites and established alien fungi (named neomycetes by Kreisel and Scholler 1994), however, may cause severe damage and even mortality, especially on non-resistant host individuals such as genetically uniform monocultures of forest trees, crops, and ornamental plants. The introduction, spread, and epidemiology of some of these economically important rust species are well documented, e.g., the white pine blister rust Cronartium ribicola J. C. Fisch.…”

Section: Introductionmentioning

confidence: 99%

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Life cycle and life strategy features of Puccinia glechomatis (Uredinales) favorable for extending the natural range of distribution

Bollmann

Schöller

2006

Mycoscience

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The objective of this study was to find features in microcyclic rust fungi (Uredinales) on wild host plants favorable for extension of the natural range of distribution. Puccinia glechomatis, a leptosporic rust fungus and its herbal host Glechoma hederacea (Lamiaceae), both natives to Eurasia and introduced in North America, were used for this study. Although the host has been known from North America since the beginning of the nineteenth century, the rust fungus was first observed there only in recent years. Favorable features were identified by studying the life cycle of the rust, including nuclear conditions and seasonal characteristics as well as its spread in North America. The life cycle was studied macroscopically by inoculation experiments, by various light microscope techniques, and by scanning electron microscopy. The spread of the pathogen and its host were reconstructed by evaluating host plant herbarium specimens and databases, literature, and field study data. The studies on P. glechomatis show that, generally for microcyclic rust fungi, establishment and potential for spread are based on several favorable features of both the host (e.g., synanthropic occurence and dispersal, genetic stability, regeneration of vegetative plant parts) and the rust fungus (asexual reproduction/genetic stability, homothallism, propagation with host plant, formation of both leptospores and thick-walled teliospores).

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Life cycle and life strategy features of Puccinia glechomatis (Uredinales) favorable for extending the natural range of distribution

Bollmann

Schöller

2006

Mycoscience

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“…A native of eastern Asia (Hiratsuka 1927), this invasive parasite was first reported in the Baltics in the mid-1990s, where it arrived presumably through the trade in nursery plants (Põldmaa 1997;Hantula & Scholler 2006;Hantula et al 2009). In the last twenty years it has spread epidemically across a number of countries along a northesouth axis roughly running from latitude 60 N (Finland) to latitude 38 N (Turkey), parasitising a number of the alder species (Alnus incana Moench., Alnus cordata Loisel, Alnus glutinosa Gaertn., Alnus orientalis Decne., and Alnus viridis D.C.) it encountered in its fairly rapid descent southwards (Kreisel & Scholler 1994;Pią tek et al 2001;Szabo 2002;Rigler-Hager et al 2003;Sert & S€ umbul 2005). The fungus has also recently been reported on grey alder (A. incana) in the eastern sector of the Italian Alps (Lagorai mountain range, Trentino AltoAdige region) (Moricca & Maresi 2010).…”

Section: Introductionmentioning

confidence: 97%

Saprophytic growth of the alder rust fungus Melampsoridium hiratsukanum on artificial media

Moricca

Ginetti

2015

Fungal Biology

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Colonies initially grew poorly when subcultured for one month in purity, but much better after re-transfer to fresh media later: presumably because only the most exploitative genotypes survived, best able to cope with an uncongenial medium. Stabilised cultures survived, and remained vegetative, but only few reproductive colonies produced spore-like bodies. Though the agarised medium remains an inhospitable environment for this biotrophic parasite, it is shown that non-living media can nevertheless sustain the growth and sporulation of this fungus outside its natural hosts and habitat. Axenic culture promises important advances in basic and applied research on this rust, leading to a better understanding of its nutrition, metabolism, diversity and pathogenicity.

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“…Its northern limit has now reached 68'h parallel in Finland. The spread appears irreversable and the species is a typical neomycete (Kreisel & Scholler 1994) in Europe. Eriksson (1992), Gja:rum (1994), Kreisel & Scholler ( 1994 ), Karis ( 1995), Gelyuta (1997), Tikhomirova & Tobias (1999).…”

mentioning

confidence: 99%

“…The spread appears irreversable and the species is a typical neomycete (Kreisel & Scholler 1994) in Europe. Eriksson (1992), Gja:rum (1994), Kreisel & Scholler ( 1994 ), Karis ( 1995), Gelyuta (1997), Tikhomirova & Tobias (1999). As summarized by Scholler (1994a), the species was first discovered in Europe in 1975.…”

mentioning

confidence: 99%