Data/hora: 19/06/2024 14:47:56

Biblioteca(s): | Embrapa Amazônia Ocidental.
Data corrente: | 24/06/2014
Data da última atualização: | 24/06/2014
Autoria: | GARCIA-NOVO, F.; CRAWFORD, R. M. M.
Título: | Soil aeration, nitrate reduction and flooding tolerance in higher plants.
Ano de publicação: | 1973
Fonte/Imprenta: | New Phytologist, v. 72, n. 5, p. 1031-1039, 1973.
Idioma: | Inglês
Conteúdo: | Flood-tolerant species from natural habitats differ from flood-intolerant species by being able to make more effective use of nitrate as an alternative electron acceptor to oxygen during periods of partial anaerobiosis. When flooded, tolerant species show marked increases in nitrate-reductase activity in roots and leaves. A greater ability to synthesize amino-acids under anoxia was also found in the tolerant species than in the intolerant. It is suggested that these properties enable the flood-tolerant species to facilitate the re-oxidation of NADH2 under conditions of anoxia and that this is associated with the greater ability of the species to withstand a reduction in the partial pressure of oxygen.
Thesagro: | Solo.
Categoria do assunto: | --
Registro original: | Embrapa Amazônia Ocidental (CPAA)
Exemplares: | CPAA - (27151-1) - ADD - SP - PP - S1243 -  - S1243 - DIS