Infection of Detached Needles of Pinus strobus and P. sylvestris by Lophodermium pinastri1)

Costonis, A. C.; Sinclair, W. A.; Zycha, H.

doi:10.1111/j.1439-0434.1970.tb02479.x

Cited by 6 publications

(5 citation statements)

References 5 publications

(4 reference statements)

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“…The isolation of possible pathogenic forms of Lophodermium pinastri from apparently healthy pine needles (COSTONIS 1968;LANGNER 1933;LANIER 1968;MILLAR and RICHARDS 1975;RACK 1959RACK , 1963) may be further examples; 2. infection by a pathogen which penetrates the needle and then produces a resting structure which may remain dormant for several months before continuing its growth, eg. the amorphous sub-cuticular fungal growth of L. pinastri infecting P. sylvestris and P. strobus (COSTONIS et al 1970) and the melanized appressorium produced by a pathogenic form of L. pinastri on P. sylvestris (STALEY 1975); 3. endophytic growth of saprophytic fungi which can be isolated from otherwise healthy needles but do not complete their lifecycle until the needles senesce eg. isolation of saprophytic forms of E. pinastri from P. sylvestris and P. nigra var maritima (MILLAR and RICHARDS 1975) and the endophytic growth of the saprophytic Phyllostieta sp.…”

Section: Discussionmentioning

confidence: 99%

The biology of Lophodermella conjuncta Darker on Corsican pine needles

1978

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The biology of Lophodermella conjuncta on Corsiean pine needles was studied. Results of a spore exclusion experiment and histological examination of needles indicated that infection of young current years needles occurred and that the fungus first colonized only the endodermis. Infection remained latent until symptoms developed, from hyphae penetrating the mesophyll from the endodermis, in July of the year following infeetion. Aseocarps were produced on second year needles by mid-August. Ascospores were trapped throughout the year. Infected needles were cast prematurely during the third season. The phenomenon of latent infeetion of pine needles by some pine needle fungi is diseussed.

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Section: Discussionmentioning

confidence: 99%

The biology of Lophodermella conjuncta Darker on Corsican pine needles

1978

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“…(Peace 1962), and in older reports, i.e. Costonis et al (1970), the disease has been attributed to this fungus. Two biotypes of L. pinasri, differing in their pathogenicity and morphology, were recognised on Scots pine both in the plantation and in the nursery in Scotland (Millar and Watson 1971).…”

Section: Lophodermium Needle Castmentioning

confidence: 93%

Nursery practices and management of fungal diseases in forest nurseries in Finland. A review.

Lilja¹,

Lilja²,

Kurkela³

et al. 1997

Silva Fenn.

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“…Results from this combination of approaches, therefore, strengthen the argument that runs of infection of L. nitens in white pine can reach an upper limit of several millimetres in length. Although localized rather than systemic infections have been suspected (Costonis et al 1970), this is the first empirical confirmation that such is the case.…”

Section: Discussionmentioning

confidence: 62%

“…in Pinus resinosa exhibit high levels of DNA polymorphism (Bahnweg et al 1994. The infection of Pinus strobus by L. nitens ascospores has been documented on detached needles (Costonis, Sinclair & Zycha 1970). This is assumed to be the sole means of host infection, and the pycnidiospores are hypothesized to be spermatial (Minter 1981, Osorio & Stephan 1991.…”

Section: Introductionmentioning

confidence: 99%