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	Provedor de dados J. Soil Sci. Plant Nutr. (1) Rev. Bras. Ciênc. Solo (1) Autor Alberdi,M (1) Araujo,Wagner Luiz (1) Castro,Gustavo Franco de (1) Harguindeguy,Ignácio (1) Ivanov,A.G (1) Millaleo,R (1) Mora,M.L (1) Novais,Roberto Ferreira (1) Novais,Sarah Vieira (1) Reyes- Diaz,M (1) Vergutz,Leonardus (1) Mais... Palavra-chave Mn toxicity (2) Hydric stress (1) Manganese (1) Resistance mechanisms (1) Soil waterlogging (1) VRDSD (1) Water table fluctuation (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Journal article (1) Ano 2018 (1) 2010 (1) País Brazil (1) Chile (1) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última MANGANESE AS ESSENTIAL AND TOXIC ELEMENT FOR PLANTS: TRANSPORT, ACCUMULATION AND RESISTANCE MECHANISMS J. Soil Sci. Plant Nutr. Millaleo,R; Reyes- Diaz,M; Ivanov,A.G; Mora,M.L; Alberdi,M. Manganese is an essential element for plants, intervening in several metabolic processes, mainly in photosynthesis and as an enzyme antioxidant-cofactor. Nevertheless, an excess of this micronutrient is toxic for plants. Mn phytotoxicity is manifested in a reduction of biomass and photosynthesis, and biochemical disorders such as oxidative stress. Some studies on Mn toxicity and Mn translocation from soil to plant cells in Mn2+ form have demonstrated their importance under low pH and redox potential conditions in the soil. When Mn is inside the cells, mechanisms that can tolerate this toxicity are also observed, being important the compartmentalization of this metal in different organdíes of shoot and leaf plant cells. A key role of antioxidative systems... Tipo: Journal article Palavras-chave: Manganese; Mn toxicity; Resistance mechanisms. Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162010000200008 Physiological Responses to Hypoxia and Manganese in Eucalyptus Clones with Differential Tolerance to Vale do Rio Doce Shoot Dieback Rev. Bras. Ciênc. Solo Harguindeguy,Ignácio; Castro,Gustavo Franco de; Novais,Sarah Vieira; Vergutz,Leonardus; Araujo,Wagner Luiz; Novais,Roberto Ferreira. ABSTRACT: Vale do Rio Doce shoot dieback (VRDSD) is an anomaly whose cause seems to be associated with hypoxic conditions and their consequences (excess Mn and Fe) triggered by elevation of the water table in areas with poor drainage. Different plants have distinct survival strategies under this form of stress. The objective of this study was to understand the physiological responses involved in the differential tolerance of eucalyptus clones to VRDSD and their relationship to hypoxia and excess Mn. A hydroponic experiment was carried out using a 2 × 2 × 2 factorial arrangement, two eucalyptus clones with different levels of tolerance to VRDSD (sensitive Urograndis hybrid - 1213; and the tolerant Rio Claro hybrid - Eucalyptus grandis x unknown - 2719), two... Tipo: Info:eu-repo/semantics/article Palavras-chave: VRDSD; Water table fluctuation; Soil waterlogging; Hydric stress; Mn toxicity. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100504 Registros recuperados: 2 Primeira ... 1 ... Última

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