The role of the external mycelial network of vesicular-arbuscular mycorrhizal fungi: a study of carbon transfer between plants interconnected by a common mycelium |
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Authors: | Marco A Martins |
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Institution: | (1) Department of Animal and Plant Sciences, The University of Sheffield, S10 2UQ Sheffield, UK;(2) Present address: Departamento de Biologia Géral, Universidade Federal de Viçosa, 36.570 Viçosa MG, Brazil |
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Abstract: | The transfer of 14C from Lolium perenne (the donor) to Plantago lanceolata (the receiver), mediated by vesicular-arbuscular (VA) mycorrhizal fungi, was examined when the two species were grown together or separately. The VA mycorrhizal infection led to a significant increase, relative to that in uninfected plants, in the 14C transferred from donor to receiver plants, not only when the roots of the two plants were growing in intimate mixture, but also when they were separated by a root-free zone of 2.33 cm. The majority of isotope transfer between the two plant species was along the direct pathway via VA mycelium. |
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Keywords: | Vesicular-arbuscular mycorrhiza 14C transfer |
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