Evidence of the effects of fire on branching and leaf development in cerrado trees

Detalhes bibliográficos
Autor(a) principal: Souza,João Paulo
Data de Publicação: 2017
Outros Autores: Albino,Ana Lúcia S., Prado,Carlos Henrique B. A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Acta Botanica Brasilica
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000400677
Resumo: ABSTRACT We discuss evidence of effects of an accidental fire on shoot growth and leaf development in six cerrado tree species with distinct leaf phenologies. Buds of all six species were marked before shoot and leaf emergence in the dry season. After fire, leaf and shoot growth were monitored weekly and specific leaf area (SLA) was determined. Shoot order was determined in the growing season. Evergreens and semideciduous woody species had rapid leaf and shoot growth and decreased leaf life span (LLS) after fire compared with published data for evergreens in cerrado areas without fire. On the other hand, Kielmeyera variabilis, a deciduous species, showed intense branching and produced two orders of shoots in one growing season. Fires promote rapid leaf and shoot growth in evergreens owing to reserve accumulations that allow survivorship after disturbances. However, the leaves produced by evergreens after fire had high SLAs and were discarded before the next rainy season (short LLS). This leaf cohort was produced with less carbon per leaf, and the decreased LLS prevented herbivory and water loss during the dry season. Fire is an important factor of cerrado environments, influencing leaf production and shoot architecture in cerrado trees.
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spelling Evidence of the effects of fire on branching and leaf development in cerrado treesdisturbanceleaf life spanshoot growthspecific leaf areashoot orderABSTRACT We discuss evidence of effects of an accidental fire on shoot growth and leaf development in six cerrado tree species with distinct leaf phenologies. Buds of all six species were marked before shoot and leaf emergence in the dry season. After fire, leaf and shoot growth were monitored weekly and specific leaf area (SLA) was determined. Shoot order was determined in the growing season. Evergreens and semideciduous woody species had rapid leaf and shoot growth and decreased leaf life span (LLS) after fire compared with published data for evergreens in cerrado areas without fire. On the other hand, Kielmeyera variabilis, a deciduous species, showed intense branching and produced two orders of shoots in one growing season. Fires promote rapid leaf and shoot growth in evergreens owing to reserve accumulations that allow survivorship after disturbances. However, the leaves produced by evergreens after fire had high SLAs and were discarded before the next rainy season (short LLS). This leaf cohort was produced with less carbon per leaf, and the decreased LLS prevented herbivory and water loss during the dry season. Fire is an important factor of cerrado environments, influencing leaf production and shoot architecture in cerrado trees.Sociedade Botânica do Brasil2017-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000400677Acta Botanica Brasilica v.31 n.4 2017reponame:Acta Botanica Brasilicainstname:Sociedade Botânica do Brasil (SBB)instacron:SBB10.1590/0102-33062017abb0123info:eu-repo/semantics/openAccessSouza,João PauloAlbino,Ana Lúcia S.Prado,Carlos Henrique B. A.eng2017-10-11T00:00:00Zoai:scielo:S0102-33062017000400677Revistahttps://www.scielo.br/j/abb/ONGhttps://old.scielo.br/oai/scielo-oai.phpacta@botanica.org.br||acta@botanica.org.br|| f.a.r.santos@gmail.com1677-941X0102-3306opendoar:2017-10-11T00:00Acta Botanica Brasilica - Sociedade Botânica do Brasil (SBB)false
dc.title.none.fl_str_mv Evidence of the effects of fire on branching and leaf development in cerrado trees
title Evidence of the effects of fire on branching and leaf development in cerrado trees
spellingShingle Evidence of the effects of fire on branching and leaf development in cerrado trees
Souza,João Paulo
disturbance
leaf life span
shoot growth
specific leaf area
shoot order
title_short Evidence of the effects of fire on branching and leaf development in cerrado trees
title_full Evidence of the effects of fire on branching and leaf development in cerrado trees
title_fullStr Evidence of the effects of fire on branching and leaf development in cerrado trees
title_full_unstemmed Evidence of the effects of fire on branching and leaf development in cerrado trees
title_sort Evidence of the effects of fire on branching and leaf development in cerrado trees
author Souza,João Paulo
author_facet Souza,João Paulo
Albino,Ana Lúcia S.
Prado,Carlos Henrique B. A.
author_role author
author2 Albino,Ana Lúcia S.
Prado,Carlos Henrique B. A.
author2_role author
author
dc.contributor.author.fl_str_mv Souza,João Paulo
Albino,Ana Lúcia S.
Prado,Carlos Henrique B. A.
dc.subject.por.fl_str_mv disturbance
leaf life span
shoot growth
specific leaf area
shoot order
topic disturbance
leaf life span
shoot growth
specific leaf area
shoot order
description ABSTRACT We discuss evidence of effects of an accidental fire on shoot growth and leaf development in six cerrado tree species with distinct leaf phenologies. Buds of all six species were marked before shoot and leaf emergence in the dry season. After fire, leaf and shoot growth were monitored weekly and specific leaf area (SLA) was determined. Shoot order was determined in the growing season. Evergreens and semideciduous woody species had rapid leaf and shoot growth and decreased leaf life span (LLS) after fire compared with published data for evergreens in cerrado areas without fire. On the other hand, Kielmeyera variabilis, a deciduous species, showed intense branching and produced two orders of shoots in one growing season. Fires promote rapid leaf and shoot growth in evergreens owing to reserve accumulations that allow survivorship after disturbances. However, the leaves produced by evergreens after fire had high SLAs and were discarded before the next rainy season (short LLS). This leaf cohort was produced with less carbon per leaf, and the decreased LLS prevented herbivory and water loss during the dry season. Fire is an important factor of cerrado environments, influencing leaf production and shoot architecture in cerrado trees.
publishDate 2017
dc.date.none.fl_str_mv 2017-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000400677
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000400677
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0102-33062017abb0123
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Botânica do Brasil
publisher.none.fl_str_mv Sociedade Botânica do Brasil
dc.source.none.fl_str_mv Acta Botanica Brasilica v.31 n.4 2017
reponame:Acta Botanica Brasilica
instname:Sociedade Botânica do Brasil (SBB)
instacron:SBB
instname_str Sociedade Botânica do Brasil (SBB)
instacron_str SBB
institution SBB
reponame_str Acta Botanica Brasilica
collection Acta Botanica Brasilica
repository.name.fl_str_mv Acta Botanica Brasilica - Sociedade Botânica do Brasil (SBB)
repository.mail.fl_str_mv acta@botanica.org.br||acta@botanica.org.br|| f.a.r.santos@gmail.com
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