Effects of arbuscular mycorrhizal fungi on severity of root rot of bananas caused by Cylindrocladium spathiphylli
The interaction between four arbuscular mycorrhizal (AM) fungi, #Glomus sp.#, #G. proliferum#, #G. intraradices# and #G. versiforme#, and the root-rot fungus #Cylindrocladium spathiphylli#, and subsequent effects on growth and phosphorus nutrition of banana (#Musa acuminata#, AAA, cv. 'Grande Naine') were investigated under glasshouse conditions. Overall, root infection by #C. spathiphylli# reduced the growth of banana plants, but preinoculation with AM fungi significantly attenuated this detrimental effect. Lower disease severity, stimulation of growth and increase of shoot P content were observed for the plants inoculated with one of the four AM fungi. #Glomus sp.# and #G. proliferum# induced the largest increase in growth parameters and shoot P content as compared to #G. intraradices# and #G. versiforme#, in the presence as well as in the absence of #G. spathiphylli#. Root damage caused by #C. spathiphylli# was decreased in the presence of AM fungi, but the inoculation of mycorrhizal plants with #C. spathiphylli# also decreased the intensity of AM fungal root colonization, indicating a clear interaction between the two organisms.
| Main Authors: | , , , |
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| Format: | article biblioteca |
| Language: | eng |
| Subjects: | H20 - Maladies des plantes, Musa, mycorhizé à vésicule et arbuscule, Glomus, Glomus intraradices, Glomus versiforme, Cylindrocladium, pourriture des racines, maladie fongique, phosphore, croissance, nutrition des plantes, Musa acuminata, http://aims.fao.org/aos/agrovoc/c_4993, http://aims.fao.org/aos/agrovoc/c_24415, http://aims.fao.org/aos/agrovoc/c_31772, http://aims.fao.org/aos/agrovoc/c_35499, http://aims.fao.org/aos/agrovoc/c_35503, http://aims.fao.org/aos/agrovoc/c_31561, http://aims.fao.org/aos/agrovoc/c_16033, http://aims.fao.org/aos/agrovoc/c_11042, http://aims.fao.org/aos/agrovoc/c_5804, http://aims.fao.org/aos/agrovoc/c_3394, http://aims.fao.org/aos/agrovoc/c_16379, http://aims.fao.org/aos/agrovoc/c_4994, |
| Online Access: | http://agritrop.cirad.fr/508733/ http://agritrop.cirad.fr/508733/1/508733.pdf |
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