Micropropagated plum plants (Prunus cerasifera Ehrh clone MrS 2 5) were inoculated with 4 different species of arbuscular mycorrhizal fungi (Glomus mosseas, G caledonium, G coronatum and Glomus strain A6) after transfer from an in vitro to an in vivo system. The most and the least infective fungi, G mosseae and G coronatum respectively, were tested for their growth-promoting abilities with respect to the micropropagated plum plants. Both fungi improved plant growth in comparison with uninoculated plants. G coronatum showed a prolonged lag phase during the early stage of mycorrhizal infection and affected growth less than G mosseae at the first harvest (4 wk). At the second harvest (14 wk), when mycorrhizal infection by both fungi was high, G coronatum was as effective as G mosseae in promoting plant growth of P cerasifera. The importance of a rapid mycorrhizal infection during the acclimatization phase of micropropagated plants is discussed in this paper.

Infectivity and effectieness of different species of arbuscular mycorrhizal fungi in micropropagated plants of Mr S 2/5 plum rootstock

MORINI, STEFANO;GIOVANNETTI, MANUELA;LORETI, FILIBERTO
1992

Abstract

Micropropagated plum plants (Prunus cerasifera Ehrh clone MrS 2 5) were inoculated with 4 different species of arbuscular mycorrhizal fungi (Glomus mosseas, G caledonium, G coronatum and Glomus strain A6) after transfer from an in vitro to an in vivo system. The most and the least infective fungi, G mosseae and G coronatum respectively, were tested for their growth-promoting abilities with respect to the micropropagated plum plants. Both fungi improved plant growth in comparison with uninoculated plants. G coronatum showed a prolonged lag phase during the early stage of mycorrhizal infection and affected growth less than G mosseae at the first harvest (4 wk). At the second harvest (14 wk), when mycorrhizal infection by both fungi was high, G coronatum was as effective as G mosseae in promoting plant growth of P cerasifera. The importance of a rapid mycorrhizal infection during the acclimatization phase of micropropagated plants is discussed in this paper.
Fortuna, P; Citernesi, S; Morini, Stefano; Giovannetti, Manuela; Loreti, Filiberto
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/201522
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