Invasion of rust (Puccinia poarum) pycnia and aecia on coltsfoot (Tussilago farfara) by secondary pathogens: death of host leaves.

Lancaster Environment Centre

Keywords

Mortality, Superinfection, Floristic composition, Medicinal plant, Plant pathogen, Basidiomycetes, Fungi, Thallophyta, Compositae, Dicotyledones, Angiospermae, Spermatophyta

Research output: Contribution to Journal/Magazine › Journal article

Published

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Invasion of rust (Puccinia poarum) pycnia and aecia on coltsfoot (Tussilago farfara) by secondary pathogens: death of host leaves. / De Nooij, M. P.; Paul, N. D.
In: Mycological Research, Vol. 96, No. 4, 1992, p. 309-312.

Research output: Contribution to Journal/Magazine › Journal article

Bibtex

@article{42c92a3f76e046a79f054c638aa5b906,

title = "Invasion of rust (Puccinia poarum) pycnia and aecia on coltsfoot (Tussilago farfara) by secondary pathogens: death of host leaves.",

abstract = "Necrotrophic fungi were cultured after isolation from rust (Puccinia poarum) pustules on leaves of Tussilago farfara, collected in the field. Healthy and rusted (P. poarum) leaves of T. farfara were re-inoculated in a greenhouse with these potential secondary invaders and development of necrosis and death of leaves was determined. Alternaria alternata, Fusarium sp., Phoma exigua and Phoma glomerata caused formation of necrotic tissue and (non-systemic) death of leaves, whereas leaves inoculated with Cladosporium herbarum and Epicoccum nigrum were similar to leaves inoculated with sterile water. Greater necrosis developed when aecia rather than pycnia were inoculated and at both stages secondary damage increased with increasing pustule density. Comparison with other host-rust systems and aspects of biological weed control are discussed.",

keywords = "Mortality, Superinfection, Floristic composition, Medicinal plant, Plant pathogen, Basidiomycetes, Fungi, Thallophyta, Compositae, Dicotyledones, Angiospermae, Spermatophyta",

author = "{De Nooij}, {M. P.} and Paul, {N. D.}",

year = "1992",

language = "English",

volume = "96",

pages = "309--312",

journal = "Mycological Research",

publisher = "Cambridge University Press",

number = "4",

}

RIS

TY - JOUR

T1 - Invasion of rust (Puccinia poarum) pycnia and aecia on coltsfoot (Tussilago farfara) by secondary pathogens: death of host leaves.

AU - De Nooij, M. P.

AU - Paul, N. D.

PY - 1992

Y1 - 1992

N2 - Necrotrophic fungi were cultured after isolation from rust (Puccinia poarum) pustules on leaves of Tussilago farfara, collected in the field. Healthy and rusted (P. poarum) leaves of T. farfara were re-inoculated in a greenhouse with these potential secondary invaders and development of necrosis and death of leaves was determined. Alternaria alternata, Fusarium sp., Phoma exigua and Phoma glomerata caused formation of necrotic tissue and (non-systemic) death of leaves, whereas leaves inoculated with Cladosporium herbarum and Epicoccum nigrum were similar to leaves inoculated with sterile water. Greater necrosis developed when aecia rather than pycnia were inoculated and at both stages secondary damage increased with increasing pustule density. Comparison with other host-rust systems and aspects of biological weed control are discussed.

AB - Necrotrophic fungi were cultured after isolation from rust (Puccinia poarum) pustules on leaves of Tussilago farfara, collected in the field. Healthy and rusted (P. poarum) leaves of T. farfara were re-inoculated in a greenhouse with these potential secondary invaders and development of necrosis and death of leaves was determined. Alternaria alternata, Fusarium sp., Phoma exigua and Phoma glomerata caused formation of necrotic tissue and (non-systemic) death of leaves, whereas leaves inoculated with Cladosporium herbarum and Epicoccum nigrum were similar to leaves inoculated with sterile water. Greater necrosis developed when aecia rather than pycnia were inoculated and at both stages secondary damage increased with increasing pustule density. Comparison with other host-rust systems and aspects of biological weed control are discussed.

KW - Mortality

KW - Superinfection

KW - Floristic composition

KW - Medicinal plant

KW - Plant pathogen

KW - Basidiomycetes

KW - Fungi

KW - Thallophyta

KW - Compositae

KW - Dicotyledones

KW - Angiospermae

KW - Spermatophyta

M3 - Journal article

VL - 96

SP - 309

EP - 312

JO - Mycological Research

JF - Mycological Research

IS - 4

ER -

Research

Keywords