The mycorrhizal status of the woody Mediterranean shrub Myrtus communis L. |
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Authors: | Ivica Matosevic Guglielmo Costa M. Giovannetti |
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Affiliation: | (1) Dipartimento di Produzione Vegetale e Tecnologie Agrarie, Udine University, Via delle Scienze 208, I-33100 Udine, Italy, IT;(2) Istituto di Microbiologia Agraria, Centro di Studio per la Microbiologia del Suolo, C. N. R., Pisa University, Via del Borghetto 80, I-56124 Pisa, Italy, IT |
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Abstract: | Myrtus communis L. (myrtle), a typical Mediterranean plant species belonging to the family Myrtaceae, was shown to form arbuscular mycorrhizal symbioses in nature. Many different spore types were isolated from its rhizosphere and grown in pot cultures; six of them were identified as Glomus species. In the laboratory, the myrtle root system was colonized by indigenous endophytes as well as by an Italian isolate of Glomus intraradices. In greenhouse experiments, mycorrhizal inoculation reduced transplant stress in 60-day-old myrtle seedlings; their growth was renewed immediately after transplanting, whereas non-mycorrhizal plants stopped development. Significantly larger growth responses were obtained using indigenous fungi than the Italian isolate of Glomus intraradices. Accepted: 16 January 1997 |
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Keywords: | Arbuscular mycorrhizas Myrtus communis L. Glomus intraradices Indigenous endophytes Transplant stress |
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