Data/hora: 05/06/2024 01:27:15

Biblioteca(s): | Embrapa Milho e Sorgo.
Data corrente: | 11/10/2000
Data da última atualização: | 08/06/2018
Autoria: | BRESSAN, W.; CARVALHO, C. H. S. de; SYLVIA, D. M.
Afiliação: | EMBRAPA-CNPMS.
Título: | Inoculation of somatic embryos of sweet potato with an arbuscular mycorrhizal fungus improves embryo survival and plantlet formation.
Ano de publicação: | 2000
Fonte/Imprenta: | Canadian Journal of Microbiology, Ottawa, v. 46, n. 8, p. 741-743, 2000.
Idioma: | Inglês
Conteúdo: | Responses 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 < 0,05) greater than that of noninoculated embryos at the rooted-cotyledonary-torpedo and rooted-elongated-torpedo developmental stages. Mycorrhizate significantly (P < 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.
Palavras-Chave: | Embriao somatico; Mycorrhiza; Sweet potato.
Thesagro: | Batata Doce; Fungo; Glomus Etunicatum; Micorriza.
Thesaurus Nal: | somatic embryos.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
Registro original: | Embrapa Milho e Sorgo (CNPMS)
Exemplares: | CNPMS - (12573-1) - UPC - AP - DD -  -  -  - DIS