Test of hypotheses about herbivory and chemical defences of Qualea parviflora (Vochysiaceae) in Brazilian Cerrado
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Botany |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042011000200009 |
Resumo: | (Test of hypotheses about herbivory and chemical defences of Qualea parviflora (Vochysiaceae) in Brazilian Cerrado). Qualea parviflora Mart. (Vochysiaceae), a widely distributed tree found in different habitats in Brazilian Cerrado (savanna), provides resources for a great variety of insects. In this study, we tested two hypotheses about plant investment in anti-herbivore defences along a fertility gradient in Cerrado: the carbon/nitrogen balance (CNBH) and resource availability (RAH). We also investigated how the pattern of herbivory varies through the year and among three types of vegetation in Brazilian Cerrado - campo sujo, cerrado sensu strictu and cerradão. Sampling was conducted in three types of vegetation and in rainy (January and November) and dry months (April and July). Damage on 20 completely expanded leaves, leaf nutrients, sclerophlylly, total phenols and tannins were recorded for each plant (n = 30). When leaves were young, less sclerophyllous, and with higher concentration of nutrients and tannins, damage by herbivores was about 7% in cerrado sensu stricto and 3% in campo sujo. Mature leaves did not show any significant difference on herbivory among habitats, that varied from 6 to 9%. Nutrient availability to plants is an important factor determining production of secondary metabolites in Q. parviflora, corroborating the CNBH. The absence of correlation between damaged leaf area and tannin concentration did not corroborate the RAH, suggesting that tannin production is not strongly influenced by herbivores on Q. parviflora. |
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Test of hypotheses about herbivory and chemical defences of Qualea parviflora (Vochysiaceae) in Brazilian CerradoBrazilian savannainsect-plant interactionleaf damageplant defences(Test of hypotheses about herbivory and chemical defences of Qualea parviflora (Vochysiaceae) in Brazilian Cerrado). Qualea parviflora Mart. (Vochysiaceae), a widely distributed tree found in different habitats in Brazilian Cerrado (savanna), provides resources for a great variety of insects. In this study, we tested two hypotheses about plant investment in anti-herbivore defences along a fertility gradient in Cerrado: the carbon/nitrogen balance (CNBH) and resource availability (RAH). We also investigated how the pattern of herbivory varies through the year and among three types of vegetation in Brazilian Cerrado - campo sujo, cerrado sensu strictu and cerradão. Sampling was conducted in three types of vegetation and in rainy (January and November) and dry months (April and July). Damage on 20 completely expanded leaves, leaf nutrients, sclerophlylly, total phenols and tannins were recorded for each plant (n = 30). When leaves were young, less sclerophyllous, and with higher concentration of nutrients and tannins, damage by herbivores was about 7% in cerrado sensu stricto and 3% in campo sujo. Mature leaves did not show any significant difference on herbivory among habitats, that varied from 6 to 9%. Nutrient availability to plants is an important factor determining production of secondary metabolites in Q. parviflora, corroborating the CNBH. The absence of correlation between damaged leaf area and tannin concentration did not corroborate the RAH, suggesting that tannin production is not strongly influenced by herbivores on Q. parviflora.Sociedade Botânica de São Paulo2011-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042011000200009Brazilian Journal of Botany v.34 n.2 2011reponame:Brazilian Journal of Botanyinstname:Sociedade Botânica de São Paulo (SBSP)instacron:SBSP10.1590/S0100-84042011000200009info:eu-repo/semantics/openAccessGonçalves-Alvim,Silmary J.Lana,Tate C.Ranieri,Bernardo D.Fernandes,Geraldo Wilsoneng2011-07-01T00:00:00Zoai:scielo:S0100-84042011000200009Revistahttps://www.scielo.br/j/rbb/ONGhttps://old.scielo.br/oai/scielo-oai.phpbrazbot@gmail.com||brazbot@gmail.com1806-99590100-8404opendoar:2011-07-01T00:00Brazilian Journal of Botany - Sociedade Botânica de São Paulo (SBSP)false |
dc.title.none.fl_str_mv |
Test of hypotheses about herbivory and chemical defences of Qualea parviflora (Vochysiaceae) in Brazilian Cerrado |
title |
Test of hypotheses about herbivory and chemical defences of Qualea parviflora (Vochysiaceae) in Brazilian Cerrado |
spellingShingle |
Test of hypotheses about herbivory and chemical defences of Qualea parviflora (Vochysiaceae) in Brazilian Cerrado Gonçalves-Alvim,Silmary J. Brazilian savanna insect-plant interaction leaf damage plant defences |
title_short |
Test of hypotheses about herbivory and chemical defences of Qualea parviflora (Vochysiaceae) in Brazilian Cerrado |
title_full |
Test of hypotheses about herbivory and chemical defences of Qualea parviflora (Vochysiaceae) in Brazilian Cerrado |
title_fullStr |
Test of hypotheses about herbivory and chemical defences of Qualea parviflora (Vochysiaceae) in Brazilian Cerrado |
title_full_unstemmed |
Test of hypotheses about herbivory and chemical defences of Qualea parviflora (Vochysiaceae) in Brazilian Cerrado |
title_sort |
Test of hypotheses about herbivory and chemical defences of Qualea parviflora (Vochysiaceae) in Brazilian Cerrado |
author |
Gonçalves-Alvim,Silmary J. |
author_facet |
Gonçalves-Alvim,Silmary J. Lana,Tate C. Ranieri,Bernardo D. Fernandes,Geraldo Wilson |
author_role |
author |
author2 |
Lana,Tate C. Ranieri,Bernardo D. Fernandes,Geraldo Wilson |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Gonçalves-Alvim,Silmary J. Lana,Tate C. Ranieri,Bernardo D. Fernandes,Geraldo Wilson |
dc.subject.por.fl_str_mv |
Brazilian savanna insect-plant interaction leaf damage plant defences |
topic |
Brazilian savanna insect-plant interaction leaf damage plant defences |
description |
(Test of hypotheses about herbivory and chemical defences of Qualea parviflora (Vochysiaceae) in Brazilian Cerrado). Qualea parviflora Mart. (Vochysiaceae), a widely distributed tree found in different habitats in Brazilian Cerrado (savanna), provides resources for a great variety of insects. In this study, we tested two hypotheses about plant investment in anti-herbivore defences along a fertility gradient in Cerrado: the carbon/nitrogen balance (CNBH) and resource availability (RAH). We also investigated how the pattern of herbivory varies through the year and among three types of vegetation in Brazilian Cerrado - campo sujo, cerrado sensu strictu and cerradão. Sampling was conducted in three types of vegetation and in rainy (January and November) and dry months (April and July). Damage on 20 completely expanded leaves, leaf nutrients, sclerophlylly, total phenols and tannins were recorded for each plant (n = 30). When leaves were young, less sclerophyllous, and with higher concentration of nutrients and tannins, damage by herbivores was about 7% in cerrado sensu stricto and 3% in campo sujo. Mature leaves did not show any significant difference on herbivory among habitats, that varied from 6 to 9%. Nutrient availability to plants is an important factor determining production of secondary metabolites in Q. parviflora, corroborating the CNBH. The absence of correlation between damaged leaf area and tannin concentration did not corroborate the RAH, suggesting that tannin production is not strongly influenced by herbivores on Q. parviflora. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-06-01 |
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=S0100-84042011000200009 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042011000200009 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0100-84042011000200009 |
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 de São Paulo |
publisher.none.fl_str_mv |
Sociedade Botânica de São Paulo |
dc.source.none.fl_str_mv |
Brazilian Journal of Botany v.34 n.2 2011 reponame:Brazilian Journal of Botany instname:Sociedade Botânica de São Paulo (SBSP) instacron:SBSP |
instname_str |
Sociedade Botânica de São Paulo (SBSP) |
instacron_str |
SBSP |
institution |
SBSP |
reponame_str |
Brazilian Journal of Botany |
collection |
Brazilian Journal of Botany |
repository.name.fl_str_mv |
Brazilian Journal of Botany - Sociedade Botânica de São Paulo (SBSP) |
repository.mail.fl_str_mv |
brazbot@gmail.com||brazbot@gmail.com |
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1754734840672944128 |