Germination of teleutospores of Melampsora pinitorqua Rostr.

Longo, N.; Moriondo, F.; Longo, B. Naldini

doi:10.1111/j.1439-0329.1976.tb00499.x

Cited by 9 publications

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“…The percentage of infected seedlings and the degree and localization of infection are reported in Table 1. In contrast with data obtained in 1971 (LONGO et al 1975), the results related to the rust provenance from Pizzorne showed Indeed, in their natural environment, teliospores of M. larici-tremulae were found to germinate earher in the spring than teliospores of M. pinitorqua, as was noted by LONGO et al in 1975 with respect to M. larici-tremulae at Bressanone (Bolzano) and M. pinitorqua at Monticiano (Siena), and by KURKELA (1973) for the same two rusts in Finland.…”

Section: Resultscontrasting

confidence: 87%

“…1). Moreover, artificial inoculations with this rust provenance (LONGO et al 1975) produced infections on Larix and some species of pine, but not on Pinus sylvestris; similar results were obtained with the rust provenance from Bressanone (Bolzano).…”

Section: Introductionsupporting

confidence: 69%

“…Basic laboratory methods as well as those used in measuring teliospore germination and pycnio-aecial infections were the same as those described by LONGO et al in 1970and 1976, and NALDINI LONGO et al in 1985 Materials and particular methods directly linked to the different parts of results are described, however.…”

Section: Methodsmentioning

confidence: 99%

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Observations on some Italian provenances of Melampsora populnea

Longo¹,

Longo²,

Moriondo

et al. 1988

European Journal of Forest Pathology

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The presence of Melampsora lariei-tremulae Kleb. and M. pinitorqua Rostr. in the saine area (Pizzorne, Lucca) was proved by studying differences between periods of teliospore germinability and by inoculations on pycnio-aecial hosts., , . The life cycles and pathogenicity of these two rusts were separately studied in a controlled environment and^ compared to those of M. lariei-tremulae from Bressanone and M. pinitorqua from Monticiano. observations on some Italian provenances of M. populnea 73 '•"•• -H 38 -•=•' -(i", + = infection on seedling stem present. -= in--1-epicotyl" in herbaceous seedlings and "shoot axis" in seedlings 132 B. Naldini Longo, N. Longo, F. Moriondo and F. Drovandi Receipt ofms.: J. 2. 1987

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Section: Resultscontrasting

confidence: 87%

Section: Introductionsupporting

confidence: 69%

See 1 more Smart Citation

Observations on some Italian provenances of Melampsora populnea

Longo¹,

Longo²,

Moriondo

et al. 1988

European Journal of Forest Pathology

Self Cite

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“…32, n. 2, 1979 at five different dates representing, for this area, the periods of the formation, maturation and germination stages of rust teliospores (LONGO et al 1976). …”

Section: Methodsmentioning

confidence: 99%

Ultrastructural Observations on Teliospores ofMelampsora PinitorquaRostr.

Longo¹,

Moriondo²,

Longo³

1979

Caryologia

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“…Indeed, owing to the partial overlapping of the host range of M. pinitorqua and M. larici-tremulae described in previous works by Longo et al (1970;1975), a basidiospore-derived direct penetration was shown also in the following cases of inoculations: 1) M. larici-tremulae on growing shoots of P. sylvestris (Longo et al 1997); 2) M. pinitorqua on growing needles from brachiblasts of Larix decidua (Moricca et al 2003); 3) M. larici-tremulae on cotyledons and primary needles of P. pinea (Moricca et al 2003).…”

Section: Introductionmentioning

confidence: 99%

Host surface tissues and basidiospore-derived infection strategies of some rust fungi

et al. 2006

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-Some Authors belief that the basidiospore germ tubes of rust fungi penetrate angiosperms directly and gymnosperms indirectly, hypothesizing that the different strategies of basidiospore-derived penetrations could be ascribed to the heavily cutinized and thick walled epidermal cells of the leaves of gymnosperms. In this paper the surface tissues of the organs of some angiosperms and gymnosperms -which are directly and/or indirectly penetrated by basidiospore germlings of Melampsora spp., Cronartium flaccidum and Crysomyxa abietis -were examined, in order to: (i) evaluate the role of the cuticular and epidermal cell-wall thickness, still considered a barrier to a direct penetration, and (ii) search for other possible cyto-histological aspects of surface tissues which could explain the different penetration strategies of rust basidiospore germlings. The results show that the thickness of cuticle and epidermal cell walls of the organs onto which the monokaryotic phase of each rust species has fitted itself during evolution to penetrate is not important in determining the penetration strategy, whereas it seems that it is the presence of lignin in the surface tissues of these organs which probably limits the direct penetration of rust basidiospore germlings.

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Germination of teleutospores of Melampsora pinitorqua Rostr.

Cited by 9 publications

References 0 publications

Observations on some Italian provenances of Melampsora populnea

Observations on some Italian provenances of Melampsora populnea

Ultrastructural Observations on Teliospores ofMelampsora PinitorquaRostr.

Host surface tissues and basidiospore-derived infection strategies of some rust fungi

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