P34 - Biologie du sol;F30 - Génétique et amélioration des plantes;Glomus;Casuarinaceae;nodosité racinaire;biologie moléculaire;http://aims.fao.org/aos/agrovoc/c_31772;http://aims.fao.org/aos/agrovoc/c_1378;http://aims.fao.org/aos/agrovoc/c_27601;http://aims.fao.org/aos/agrovoc/c_4891;http://aims.fao.org/aos/agrovoc/c_5155;http://aims.fao.org/aos/agrovoc/c_714;http://aims.fao.org/aos/agrovoc/c_3081
Root systems of 8 Gymnostoma species, G. poissonianum, G. leucodon, G. webbianum, G., G. australianum, G. sumatranum, G. rumphianum and G. papuanum were sampled from various stands in New Caledonia, Australia and Malaysia. All six species exhibit nodule-like structure as recently described by Duhoux et al. (2001) in G. deplancheanum and G. nodiflorum. Histologically, these myconodules are all organized in the same way, with a central vascular cylinder and cortical cells intracellularly infected with fungal hyphae. Partial sequencing of nuclear small ribosomal of myconodules-extracted DNA identified the fungal partners as members of the glomales family. Glomus spores from soil extracts were purified and cytologically described. DNA extracts from these spores showed sequences similar to those of the myconodules. (Texte intégral)
Molecular and cytological characterization of a Glomus sp. able to induce myconodules in Casuarinaceae. Ducousso Marc, Contesto Céline, Jaffré Tanguy, Rigault Frédéric, Reddell Paul, Dreyfus Bernard, Prin Yves. 2001. In : 12th International Meeting on Frankia and Actinorhizal Plants, 17-21 June 2001, Carry-le-Rouet. s.l. : s.n., Résumé, 1 p. International Meeting on Frankia and Actinorhizal Plants. 12, Carry-le-Rouet, France, 17 Juin 2001/21 Juin 2001.
