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Registro Completo |
Biblioteca(s): |
Embrapa Pecuária Sul. |
Data corrente: |
25/10/2016 |
Data da última atualização: |
25/10/2016 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
SOLARI, F. L.; GENRO, T. C. M.; SOUZA, A. L. F.; TRENTIN, G.; SILVEIRA, M. C. T. da. |
Afiliação: |
FLÁVIA LOPES SOLARI, URCAMP; TERESA CRISTINA MORAES GENRO, CPPSUL; ANDRÉ LUÍZ FLECK DE SOUZA, URCAMP; GUSTAVO TRENTIN, CPPSUL; MARCIA CRISTINA T DA SILVEIRA, CPPSUL. |
Título: |
Comportamento da distribuição dos componentes morfológicos do perfil vertical de campos nativos, sob níveis de intensificação, em quatro de anos de monitoramento. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
In: CONGRESSO DE INICIAÇÃO CIENTÍFICA, 25.; SEMANA INTEGRADA DE ENSINO, PESQUISA E EXTENSÃO, 2., 2016, Pelotas. Anais... Pelotas: UFPel, 2016. |
Idioma: |
Português |
Notas: |
CIC. |
Conteúdo: |
A pastagem nativa é caracterizada pela alta diversidade florística. Essa composição florística é marcada por espécies estivais que produzem essencialmente na primavera, verão e início do outono. |
Thesagro: |
Forragem; Melhoramento vegetal. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/149227/1/CA-01100.pdf
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Marc: |
LEADER 00955nam a2200193 a 4500 001 2055312 005 2016-10-25 008 2016 bl uuuu u00u1 u #d 100 1 $aSOLARI, F. L. 245 $aComportamento da distribuição dos componentes morfológicos do perfil vertical de campos nativos, sob níveis de intensificação, em quatro de anos de monitoramento.$h[electronic resource] 260 $aIn: CONGRESSO DE INICIAÇÃO CIENTÍFICA, 25.; SEMANA INTEGRADA DE ENSINO, PESQUISA E EXTENSÃO, 2., 2016, Pelotas. Anais... Pelotas: UFPel$c2016 500 $aCIC. 520 $aA pastagem nativa é caracterizada pela alta diversidade florística. Essa composição florística é marcada por espécies estivais que produzem essencialmente na primavera, verão e início do outono. 650 $aForragem 650 $aMelhoramento vegetal 700 1 $aGENRO, T. C. M. 700 1 $aSOUZA, A. L. F. 700 1 $aTRENTIN, G. 700 1 $aSILVEIRA, M. C. T. da
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Registro original: |
Embrapa Pecuária Sul (CPPSUL) |
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Registro Completo
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
07/10/2013 |
Data da última atualização: |
28/09/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
SOUZA, T. C. de; SOUZA, E. dos S.; DOUSSEAU, S.; CASTRO, E. M. de; MAGALHAES, P. C. |
Afiliação: |
PAULO CESAR MAGALHAES, CNPMS. |
Título: |
Seedlings of Garcinia brasiliensis (Clusiaceae) subjected to rootflooding: Physiological, morphoanatomical, and antioxidantresponses to the stress. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
Aquatic Botany, Amsterdam, v. 111, p. 43-49, 2013. |
DOI: |
10.1016/j.aquabot.2013.08.006 |
Idioma: |
Inglês |
Conteúdo: |
Garcinia brasiliensis (Mart.) is a native Amazonian tree cultivated throughout Brazil. This plant can tolerate flooding or submergence for several days, during certain periods of the year. The morphophysiological changes of G. brasiliensis (Mart.) seedlings were assessed that may favor their survival in flooded environments. Seedlings with six fully expanded leaves were placed in tanks so that their roots were submerged for 90 days. Antioxidant enzymatic activity and the contents of H2O2, soluble sugar, starch, and amino acid of the roots were evaluated on six harvesting occasions. At the end of the experiment, the dry mass and root morphology of the seedlings were determined. Flooding lead to a decrease in dry mass of roots and aboveground parts, as well as root length (58%), surface area (51%) and volume (43%), especially of roots with smaller diameter. The roots of the flooded seedlings presented thicker exodermis and greater xylem number, thicker phloem and fewer xylem fibers. There was a small amount of aerenchyma in the roots and hypertrophied lenticels were detected at the base of the stem. Superoxide dismutase activity was significantly higher in flooded roots at all harvesting times, and ascorbate peroxidase and catalase activities were highest during the last two harvestings. H2O2 content increased after 40 and 55 days of flooding, followed by a drastic decrease. After 70 and 90 days of flooding there was an expressive increase in soluble sugars, and at 90 days, a reduction in starch content. No differences were observed in amino acid content. MenosGarcinia brasiliensis (Mart.) is a native Amazonian tree cultivated throughout Brazil. This plant can tolerate flooding or submergence for several days, during certain periods of the year. The morphophysiological changes of G. brasiliensis (Mart.) seedlings were assessed that may favor their survival in flooded environments. Seedlings with six fully expanded leaves were placed in tanks so that their roots were submerged for 90 days. Antioxidant enzymatic activity and the contents of H2O2, soluble sugar, starch, and amino acid of the roots were evaluated on six harvesting occasions. At the end of the experiment, the dry mass and root morphology of the seedlings were determined. Flooding lead to a decrease in dry mass of roots and aboveground parts, as well as root length (58%), surface area (51%) and volume (43%), especially of roots with smaller diameter. The roots of the flooded seedlings presented thicker exodermis and greater xylem number, thicker phloem and fewer xylem fibers. There was a small amount of aerenchyma in the roots and hypertrophied lenticels were detected at the base of the stem. Superoxide dismutase activity was significantly higher in flooded roots at all harvesting times, and ascorbate peroxidase and catalase activities were highest during the last two harvestings. H2O2 content increased after 40 and 55 days of flooding, followed by a drastic decrease. After 70 and 90 days of flooding there was an expressive increase in soluble sugars, and at 90 days, a ... Mostrar Tudo |
Palavras-Chave: |
Hipoxia; Rheedia brasiliensis. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/90582/1/Seedlings-Garcinia.pdf
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Marc: |
LEADER 02265naa a2200205 a 4500 001 1967919 005 2017-09-28 008 2013 bl uuuu u00u1 u #d 024 7 $a10.1016/j.aquabot.2013.08.006$2DOI 100 1 $aSOUZA, T. C. de 245 $aSeedlings of Garcinia brasiliensis (Clusiaceae) subjected to rootflooding$bPhysiological, morphoanatomical, and antioxidantresponses to the stress.$h[electronic resource] 260 $c2013 520 $aGarcinia brasiliensis (Mart.) is a native Amazonian tree cultivated throughout Brazil. This plant can tolerate flooding or submergence for several days, during certain periods of the year. The morphophysiological changes of G. brasiliensis (Mart.) seedlings were assessed that may favor their survival in flooded environments. Seedlings with six fully expanded leaves were placed in tanks so that their roots were submerged for 90 days. Antioxidant enzymatic activity and the contents of H2O2, soluble sugar, starch, and amino acid of the roots were evaluated on six harvesting occasions. At the end of the experiment, the dry mass and root morphology of the seedlings were determined. Flooding lead to a decrease in dry mass of roots and aboveground parts, as well as root length (58%), surface area (51%) and volume (43%), especially of roots with smaller diameter. The roots of the flooded seedlings presented thicker exodermis and greater xylem number, thicker phloem and fewer xylem fibers. There was a small amount of aerenchyma in the roots and hypertrophied lenticels were detected at the base of the stem. Superoxide dismutase activity was significantly higher in flooded roots at all harvesting times, and ascorbate peroxidase and catalase activities were highest during the last two harvestings. H2O2 content increased after 40 and 55 days of flooding, followed by a drastic decrease. After 70 and 90 days of flooding there was an expressive increase in soluble sugars, and at 90 days, a reduction in starch content. No differences were observed in amino acid content. 653 $aHipoxia 653 $aRheedia brasiliensis 700 1 $aSOUZA, E. dos S. 700 1 $aDOUSSEAU, S. 700 1 $aCASTRO, E. M. de 700 1 $aMAGALHAES, P. C. 773 $tAquatic Botany, Amsterdam$gv. 111, p. 43-49, 2013.
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Embrapa Milho e Sorgo (CNPMS) |
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