01987naa a2200241 a 450000100080000000500110000800800410001910000160006024501610007626000090023752012430024665000200148965000160150965000100152565000220153565000140155765300210157165300150159265300170160770000260162470000180165077300770166814841992018-06-08       2000    bl uuuu     u00u1 u    #d1 aBRESSAN, W.  aInoculation of somatic embryos of sweet potato with an arbuscular mycorrhizal fungus improves embryo survival and plantlet formation.h[electronic resource]  c2000  aResponses of somatic embryos of sweet potato (Ipomoea batata (L.) Poir., cv. White Star) at different developmental stages to in vitro inoculation with Glomus etunicatum (Becker and Gerdemann) (isolate INVAM FL329) were evaluated. Somatic embryos were grown in glass tubes containing sterilized vermiculite and sand. A layer of natrosol plus White's medium was used as a carrier for arbuscular mycorrhizal (AM) fungal spores of embryos inoculated with AM fungi was significantly (P &lt 0,05) greater than that of noninoculated embryos at the rooted-cotyledonary-torpedo and rooted-elongated-torpedo developmental stages. Mycorrhizate significantly (P &lt 0,05) increased planted formation only when inoculation occurred at the rooted-elongated-torpedo developmental stage. The growth stage at which the embryos were inserted into the glass tubes exerted a significant influence upon plantlet formation, and plantlet formation was further enhanced by inoculation with G. etunicatum. Plantlet formation was greatest at the rooted-elongated-torpedo stage. These results demonstrate that inoculation of somatic embryos with AM fungi improves embryo survival and plantlet formation, and could enhance use of somatic embryos as synthetic seeds.  asomatic embryos  aBatata Doce  aFungo  aGlomus Etunicatum  aMicorriza  aEmbriao somatico  aMycorrhiza  aSweet potato1 aCARVALHO, C. H. S. de1 aSYLVIA, D. M.  tCanadian Journal of Microbiology, Ottawagv. 46, n. 8, p. 741-743, 2000.