Manganese accumulation and its relation to "eucalyptus shoot blight in the Vale do Rio Doce"

Detalhes bibliográficos
Autor(a) principal: Leite,Fernando Palha
Data de Publicação: 2014
Outros Autores: Novais,Roberto Ferreira, Silva,Ivo Ribeiro, Barros,Nairam Félix, Neves,Júlio César Lima, Medeiros,Alex Giovanny B., Ventrella,Marília Contin, Villani,Ecila Mercês de Albuquerque
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Ciência do Solo (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000100019
Resumo: Eucalyptus Shoot Blight in the Vale do Rio Doce (ESBVRD) is an anomaly that leads to reduced growth and, in more extreme cases, to death of eucalyptus plants. Initially diagnosed in plantations in the region of the Vale do Rio Doce, in the State of Minas Gerais, Brazil, this problem has also been found in plantations in other regions of the country and even in other countries. Although the symptoms of this anomaly are well-known, its causes are not yet understood. The aim of this study was to evaluate the cause-effect relationship between accumulation of manganese (Mn) in eucalyptus clones and ESBVRD. Characterization of the environment in areas of greater occurrence of this problem in regard to soil, climate and fluctuation of the water table was undertaken in eucalyptus plantations of the Celulose Nipo-brasileira S.A. (Cenibra) company in the region of the Vale do Rio Doce. Plant tissues were sampled in two situations. In the first situation, diagnosis occurred in the initial phase of the anomaly in clones with differentiated tolerance to the problem; in the second situation, diagnosis was made in a single clone, considered to be sensitive, in two time periods - in the phase with the strong presence of symptoms and in the recovery phase, in areas of occurrence and in areas of escape from the problem. The most ESBVRD-sensitive clone showed much higher (4.8 times higher) leaf Mn contents than more tolerant clones. In plants with the anomaly, Mn leaf contents were greater than 3,070 mg kg-1, much greater than the quantity found in those without the anomaly (734 mg kg-1). In the period in which the symptoms began to wane, there was a sharp decline in leaf Mn contents, from 2,194 to 847 mg kg-1. Manganese content in the above ground part and plant litter (44.4 g ha-1) in the area of occurrence of the anomaly was three times greater than that found in these same components (14.1 g ha-1) in the area of absence of the symptom. Based on the evidence found, such as the existence of environmental conditions favorable to high Mn availability to the plants in the areas of greatest incidence of ESBVRD, greater uptake of Mn in sensitive clones and in plants with symptoms, and a synchronism between the intensity of symptoms of ESBVRD and leaf Mn contents, it may be inferred that temporary excess of Mn in eucalyptus plants is closely related to ESBVRD.
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spelling Manganese accumulation and its relation to "eucalyptus shoot blight in the Vale do Rio Doce"hypoxiagroundwaterredox potentialEucalyptus Shoot Blight in the Vale do Rio Doce (ESBVRD) is an anomaly that leads to reduced growth and, in more extreme cases, to death of eucalyptus plants. Initially diagnosed in plantations in the region of the Vale do Rio Doce, in the State of Minas Gerais, Brazil, this problem has also been found in plantations in other regions of the country and even in other countries. Although the symptoms of this anomaly are well-known, its causes are not yet understood. The aim of this study was to evaluate the cause-effect relationship between accumulation of manganese (Mn) in eucalyptus clones and ESBVRD. Characterization of the environment in areas of greater occurrence of this problem in regard to soil, climate and fluctuation of the water table was undertaken in eucalyptus plantations of the Celulose Nipo-brasileira S.A. (Cenibra) company in the region of the Vale do Rio Doce. Plant tissues were sampled in two situations. In the first situation, diagnosis occurred in the initial phase of the anomaly in clones with differentiated tolerance to the problem; in the second situation, diagnosis was made in a single clone, considered to be sensitive, in two time periods - in the phase with the strong presence of symptoms and in the recovery phase, in areas of occurrence and in areas of escape from the problem. The most ESBVRD-sensitive clone showed much higher (4.8 times higher) leaf Mn contents than more tolerant clones. In plants with the anomaly, Mn leaf contents were greater than 3,070 mg kg-1, much greater than the quantity found in those without the anomaly (734 mg kg-1). In the period in which the symptoms began to wane, there was a sharp decline in leaf Mn contents, from 2,194 to 847 mg kg-1. Manganese content in the above ground part and plant litter (44.4 g ha-1) in the area of occurrence of the anomaly was three times greater than that found in these same components (14.1 g ha-1) in the area of absence of the symptom. Based on the evidence found, such as the existence of environmental conditions favorable to high Mn availability to the plants in the areas of greatest incidence of ESBVRD, greater uptake of Mn in sensitive clones and in plants with symptoms, and a synchronism between the intensity of symptoms of ESBVRD and leaf Mn contents, it may be inferred that temporary excess of Mn in eucalyptus plants is closely related to ESBVRD.Sociedade Brasileira de Ciência do Solo2014-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000100019Revista Brasileira de Ciência do Solo v.38 n.1 2014reponame:Revista Brasileira de Ciência do Solo (Online)instname:Sociedade Brasileira de Ciência do Solo (SBCS)instacron:SBCS10.1590/S0100-06832014000100019info:eu-repo/semantics/openAccessLeite,Fernando PalhaNovais,Roberto FerreiraSilva,Ivo RibeiroBarros,Nairam FélixNeves,Júlio César LimaMedeiros,Alex Giovanny B.Ventrella,Marília ContinVillani,Ecila Mercês de Albuquerqueeng2014-04-01T00:00:00Zoai:scielo:S0100-06832014000100019Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=0100-0683&lng=es&nrm=isohttps://old.scielo.br/oai/scielo-oai.php||sbcs@ufv.br1806-96570100-0683opendoar:2014-04-01T00:00Revista Brasileira de Ciência do Solo (Online) - Sociedade Brasileira de Ciência do Solo (SBCS)false
dc.title.none.fl_str_mv Manganese accumulation and its relation to "eucalyptus shoot blight in the Vale do Rio Doce"
title Manganese accumulation and its relation to "eucalyptus shoot blight in the Vale do Rio Doce"
spellingShingle Manganese accumulation and its relation to "eucalyptus shoot blight in the Vale do Rio Doce"
Leite,Fernando Palha
hypoxia
groundwater
redox potential
title_short Manganese accumulation and its relation to "eucalyptus shoot blight in the Vale do Rio Doce"
title_full Manganese accumulation and its relation to "eucalyptus shoot blight in the Vale do Rio Doce"
title_fullStr Manganese accumulation and its relation to "eucalyptus shoot blight in the Vale do Rio Doce"
title_full_unstemmed Manganese accumulation and its relation to "eucalyptus shoot blight in the Vale do Rio Doce"
title_sort Manganese accumulation and its relation to "eucalyptus shoot blight in the Vale do Rio Doce"
author Leite,Fernando Palha
author_facet Leite,Fernando Palha
Novais,Roberto Ferreira
Silva,Ivo Ribeiro
Barros,Nairam Félix
Neves,Júlio César Lima
Medeiros,Alex Giovanny B.
Ventrella,Marília Contin
Villani,Ecila Mercês de Albuquerque
author_role author
author2 Novais,Roberto Ferreira
Silva,Ivo Ribeiro
Barros,Nairam Félix
Neves,Júlio César Lima
Medeiros,Alex Giovanny B.
Ventrella,Marília Contin
Villani,Ecila Mercês de Albuquerque
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Leite,Fernando Palha
Novais,Roberto Ferreira
Silva,Ivo Ribeiro
Barros,Nairam Félix
Neves,Júlio César Lima
Medeiros,Alex Giovanny B.
Ventrella,Marília Contin
Villani,Ecila Mercês de Albuquerque
dc.subject.por.fl_str_mv hypoxia
groundwater
redox potential
topic hypoxia
groundwater
redox potential
description Eucalyptus Shoot Blight in the Vale do Rio Doce (ESBVRD) is an anomaly that leads to reduced growth and, in more extreme cases, to death of eucalyptus plants. Initially diagnosed in plantations in the region of the Vale do Rio Doce, in the State of Minas Gerais, Brazil, this problem has also been found in plantations in other regions of the country and even in other countries. Although the symptoms of this anomaly are well-known, its causes are not yet understood. The aim of this study was to evaluate the cause-effect relationship between accumulation of manganese (Mn) in eucalyptus clones and ESBVRD. Characterization of the environment in areas of greater occurrence of this problem in regard to soil, climate and fluctuation of the water table was undertaken in eucalyptus plantations of the Celulose Nipo-brasileira S.A. (Cenibra) company in the region of the Vale do Rio Doce. Plant tissues were sampled in two situations. In the first situation, diagnosis occurred in the initial phase of the anomaly in clones with differentiated tolerance to the problem; in the second situation, diagnosis was made in a single clone, considered to be sensitive, in two time periods - in the phase with the strong presence of symptoms and in the recovery phase, in areas of occurrence and in areas of escape from the problem. The most ESBVRD-sensitive clone showed much higher (4.8 times higher) leaf Mn contents than more tolerant clones. In plants with the anomaly, Mn leaf contents were greater than 3,070 mg kg-1, much greater than the quantity found in those without the anomaly (734 mg kg-1). In the period in which the symptoms began to wane, there was a sharp decline in leaf Mn contents, from 2,194 to 847 mg kg-1. Manganese content in the above ground part and plant litter (44.4 g ha-1) in the area of occurrence of the anomaly was three times greater than that found in these same components (14.1 g ha-1) in the area of absence of the symptom. Based on the evidence found, such as the existence of environmental conditions favorable to high Mn availability to the plants in the areas of greatest incidence of ESBVRD, greater uptake of Mn in sensitive clones and in plants with symptoms, and a synchronism between the intensity of symptoms of ESBVRD and leaf Mn contents, it may be inferred that temporary excess of Mn in eucalyptus plants is closely related to ESBVRD.
publishDate 2014
dc.date.none.fl_str_mv 2014-02-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000100019
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dc.language.iso.fl_str_mv eng
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dc.relation.none.fl_str_mv 10.1590/S0100-06832014000100019
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dc.publisher.none.fl_str_mv Sociedade Brasileira de Ciência do Solo
publisher.none.fl_str_mv Sociedade Brasileira de Ciência do Solo
dc.source.none.fl_str_mv Revista Brasileira de Ciência do Solo v.38 n.1 2014
reponame:Revista Brasileira de Ciência do Solo (Online)
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