JugeSamsonBastienEtAl2002

Référence

Juge, C., Samson, J., Bastien, C., Vierheilig, H., Coughlan, A. and Piche, Y. (2002) Breaking dormancy in spores of the arbuscular mycorrhizal fungus Glomus intraradices: a critical cold-storage period. Mycorrhiza, 12(1):37-42.

Résumé

To elucidate the effect of cold storage on spore dormancy in the arbuscular mycorrhizal (AM) fungus Glomus intraradices, spores were cold stratified at 4degreesC, for either 0, 3, 7, 14, 90 or 120 days, prior to germination tests at 25degreesC. The results showed that cold stratification longer than 14 days significantly increased spore germination. Moreover, the longer cold storage periods clearly reduced spore mortality from 90% to 50% and considerably altered the hyphal growth pattern. Long polarized hyphae were only observed after cold stratification periods longer than 14 days, involving consequences for root infectivity. The results clearly show that environmental factors, e.g., coldness, can affect the physiology of AM fungal spores.

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@ARTICLE { JugeSamsonBastienEtAl2002,
    AUTHOR = { Juge, C. and Samson, J. and Bastien, C. and Vierheilig, H. and Coughlan, A. and Piche, Y. },
    TITLE = { Breaking dormancy in spores of the arbuscular mycorrhizal fungus Glomus intraradices: a critical cold-storage period },
    JOURNAL = { Mycorrhiza },
    YEAR = { 2002 },
    VOLUME = { 12 },
    PAGES = { 37-42 },
    NUMBER = { 1 },
    NOTE = { Times Cited: 5 Article English Cited References Count: 40 535ak },
    ABSTRACT = { To elucidate the effect of cold storage on spore dormancy in the arbuscular mycorrhizal (AM) fungus Glomus intraradices, spores were cold stratified at 4degreesC, for either 0, 3, 7, 14, 90 or 120 days, prior to germination tests at 25degreesC. The results showed that cold stratification longer than 14 days significantly increased spore germination. Moreover, the longer cold storage periods clearly reduced spore mortality from 90% to 50% and considerably altered the hyphal growth pattern. Long polarized hyphae were only observed after cold stratification periods longer than 14 days, involving consequences for root infectivity. The results clearly show that environmental factors, e.g., coldness, can affect the physiology of AM fungal spores. },
    KEYWORDS = { germination dormancy growth pattern mycorrhiza glomales hyphal growth gigaspora-margarita endogone spores germination invitro soil co2 flavonoids gigantea inoculum },
    OWNER = { brugerolles },
    TIMESTAMP = { 2007.12.05 },
}

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