| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Florestas. |
|
Data corrente: |
23/02/2021 |
|
Data da última atualização: |
25/02/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
LIEBSCH, D.; VELAZCO, S. J. E.; MIKICH, S. B.; MARQUES, M. C. M.; GALVÃO, F. |
|
Afiliação: |
Dieter Liebsch, UFPR; Santiago José Elías Velazco, Universidad Nacional de Misiones; SANDRA BOS MIKICH, CNPF; Marcia C. M. Marques, UFPR; Franklin Galvão, UFPR. |
|
Título: |
Effects of selective logging, fragmentation, and dominance of bamboos on the structure and diversity of Araucaria Forest fragments. |
|
Ano de publicação: |
2021 |
|
Fonte/Imprenta: |
Forest Ecology and Management, v. 487, n. 1, 118961, May 2021. 9 p. |
|
DOI: |
https://doi.org/10.1016/j.foreco.2021.118961 |
|
Idioma: |
Inglês |
|
Conteúdo: |
During the colonisation of the South of Brazil, logging of tree species with high economic value was one of the main economic activities. In this process, almost all Araucaria Forest, one of the forest types of the Atlantic Forest that once covered most of this region, was severely fragmented and disturbed. One of the consequences of this disturbance was the population growth of a native bamboo species (Merostachys skvortzovii) that came out of the small patches where it occurred naturally, to dominate the understory of forest fragments. In this study, we evaluated if the fragment size, forest-edge effect, and abundance of bamboos affect forest structure and functional guilds in a region of Araucaria Forest in Parana state, Brazil. We sampled trees (DBH ? 4.8 cm) in five fragments (24?270 ha) in two plots (2000 m2 each) located at the edge and centre of each one. We analysed the forest structure (species composition and species richness, abundance, and basal area) and estimated the bamboo cover in each plot. We recorded 1743 individuals of 68 tree species in the five analysed patches. The fragments were very similar in floristic composition and structure (species richness, abundance, basal area). The bamboo cover was the main factor affecting forest structure and species guilds distribution, followed by distance from the fragment edge. These results show a simplification of floristic, structural, and functional attributes of Araucaria Forest remnants suggesting that the selective logging followed by fragmentation and native bamboo overabundance are important factors in the imporishment of this endangered biome. MenosDuring the colonisation of the South of Brazil, logging of tree species with high economic value was one of the main economic activities. In this process, almost all Araucaria Forest, one of the forest types of the Atlantic Forest that once covered most of this region, was severely fragmented and disturbed. One of the consequences of this disturbance was the population growth of a native bamboo species (Merostachys skvortzovii) that came out of the small patches where it occurred naturally, to dominate the understory of forest fragments. In this study, we evaluated if the fragment size, forest-edge effect, and abundance of bamboos affect forest structure and functional guilds in a region of Araucaria Forest in Parana state, Brazil. We sampled trees (DBH ? 4.8 cm) in five fragments (24?270 ha) in two plots (2000 m2 each) located at the edge and centre of each one. We analysed the forest structure (species composition and species richness, abundance, and basal area) and estimated the bamboo cover in each plot. We recorded 1743 individuals of 68 tree species in the five analysed patches. The fragments were very similar in floristic composition and structure (species richness, abundance, basal area). The bamboo cover was the main factor affecting forest structure and species guilds distribution, followed by distance from the fragment edge. These results show a simplification of floristic, structural, and functional attributes of Araucaria Forest remnants suggesting that the sele... Mostrar Tudo |
|
Palavras-Chave: |
Diversidade; Dominância; Floresta com Araucaria; Fragmentation; Functional guild; Landscape; Merostachys; Merostachys skvortzovii. |
|
Thesagro: |
Bambu. |
|
Thesaurus Nal: |
Edge effects. |
|
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
|
Marc: |
LEADER 02576naa a2200301 a 4500
001 2130199
005 2021-02-25
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.foreco.2021.118961$2DOI
100 1 $aLIEBSCH, D.
245 $aEffects of selective logging, fragmentation, and dominance of bamboos on the structure and diversity of Araucaria Forest fragments.$h[electronic resource]
260 $c2021
520 $aDuring the colonisation of the South of Brazil, logging of tree species with high economic value was one of the main economic activities. In this process, almost all Araucaria Forest, one of the forest types of the Atlantic Forest that once covered most of this region, was severely fragmented and disturbed. One of the consequences of this disturbance was the population growth of a native bamboo species (Merostachys skvortzovii) that came out of the small patches where it occurred naturally, to dominate the understory of forest fragments. In this study, we evaluated if the fragment size, forest-edge effect, and abundance of bamboos affect forest structure and functional guilds in a region of Araucaria Forest in Parana state, Brazil. We sampled trees (DBH ? 4.8 cm) in five fragments (24?270 ha) in two plots (2000 m2 each) located at the edge and centre of each one. We analysed the forest structure (species composition and species richness, abundance, and basal area) and estimated the bamboo cover in each plot. We recorded 1743 individuals of 68 tree species in the five analysed patches. The fragments were very similar in floristic composition and structure (species richness, abundance, basal area). The bamboo cover was the main factor affecting forest structure and species guilds distribution, followed by distance from the fragment edge. These results show a simplification of floristic, structural, and functional attributes of Araucaria Forest remnants suggesting that the selective logging followed by fragmentation and native bamboo overabundance are important factors in the imporishment of this endangered biome.
650 $aEdge effects
650 $aBambu
653 $aDiversidade
653 $aDominância
653 $aFloresta com Araucaria
653 $aFragmentation
653 $aFunctional guild
653 $aLandscape
653 $aMerostachys
653 $aMerostachys skvortzovii
700 1 $aVELAZCO, S. J. E.
700 1 $aMIKICH, S. B.
700 1 $aMARQUES, M. C. M.
700 1 $aGALVÃO, F.
773 $tForest Ecology and Management$gv. 487, n. 1, 118961, May 2021. 9 p.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Florestas (CNPF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Agricultura Digital; Embrapa Florestas. |
|
Data corrente: |
13/11/2019 |
|
Data da última atualização: |
13/03/2020 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
B - 1 |
|
Autoria: |
BETTENCOURT, G. M. de F.; SOCCOL, C. R.; GIOVANELLA, T. S.; FRANCISCON, L.; KESTRING, D. R.; GERHARDT, I. R.; DEGENHARDT-GOLDBACH, J. |
|
Afiliação: |
Gisela Manuela de França Bettencourt, UFPR; Carlos Ricardo Soccol, UFPR; Thais Salete Giovanella, UFPR; LUZIANE FRANCISCON, CNPF; DAIANE RIGONI, CNPF; ISABEL RODRIGUES GERHARDT, CNPTIA; JULIANA DEGENHARDT GOLDBACH, CNPF. |
|
Título: |
Agrobacterium tumefaciens-mediated transformation of Eucalyptus urophylla clone BRS07-01. |
|
Ano de publicação: |
2020 |
|
Fonte/Imprenta: |
Journal of Forestry Research, v. 31, n. 2, p. 507-519, Apr. 2020. |
|
DOI: |
10.1007/s11676-018-0777-4 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Abstract Genetic transformation is becoming routine for engineering specific traits in important clones of recalcitrant species such as Eucalyptus; however, the efficiency is still low for most species, so many researchers still use seeds instead of clones as initial explants. This work aimed to develop a genetic transformation protocol, based on a highly efficient in vitro organogenesis protocol, for an Eucalyptus urophylla clone selected in our breeding program. Plant growth regulators were evaluated for indirect organogenesis and rooting. In a two-step protocol, the combination of callus induction media supplemented with 0.5 lM thidiazuron + 0.5 lM naphthaleneacetic acid (NAA) and shoot induction media supplemented with 5.0 lM benzylaminopurine + 1.0 lM NAA allowed up to 85.6% shoot formation with more shoots per explants when compared with other concentrations. Transgenic plants expressing the uidA gene were obtained using Agrobacterium tumefaciens and selected for kanamycin resistance. A RAPD analysis was used to check for somaclonal variation. In tests using 11 RAPD primers, we did not observe somaclonal variation in the in vitro stages evaluated. |
|
Palavras-Chave: |
Plant growth regulators; Regeneração in vitro; Reguladores de crescimento de plantas; Transformação genética. |
|
Thesagro: |
Eucalipto; Eucalyptus Urophylla. |
|
Thesaurus NAL: |
Genetic transformation; In vitro regeneration; Somaclonal variation. |
|
Categoria do assunto: |
G Melhoramento Genético |
|
Marc: |
LEADER 02181naa a2200313 a 4500
001 2114265
005 2020-03-13
008 2020 bl uuuu u00u1 u #d
024 7 $a10.1007/s11676-018-0777-4$2DOI
100 1 $aBETTENCOURT, G. M. de F.
245 $aAgrobacterium tumefaciens-mediated transformation of Eucalyptus urophylla clone BRS07-01.$h[electronic resource]
260 $c2020
520 $aAbstract Genetic transformation is becoming routine for engineering specific traits in important clones of recalcitrant species such as Eucalyptus; however, the efficiency is still low for most species, so many researchers still use seeds instead of clones as initial explants. This work aimed to develop a genetic transformation protocol, based on a highly efficient in vitro organogenesis protocol, for an Eucalyptus urophylla clone selected in our breeding program. Plant growth regulators were evaluated for indirect organogenesis and rooting. In a two-step protocol, the combination of callus induction media supplemented with 0.5 lM thidiazuron + 0.5 lM naphthaleneacetic acid (NAA) and shoot induction media supplemented with 5.0 lM benzylaminopurine + 1.0 lM NAA allowed up to 85.6% shoot formation with more shoots per explants when compared with other concentrations. Transgenic plants expressing the uidA gene were obtained using Agrobacterium tumefaciens and selected for kanamycin resistance. A RAPD analysis was used to check for somaclonal variation. In tests using 11 RAPD primers, we did not observe somaclonal variation in the in vitro stages evaluated.
650 $aGenetic transformation
650 $aIn vitro regeneration
650 $aSomaclonal variation
650 $aEucalipto
650 $aEucalyptus Urophylla
653 $aPlant growth regulators
653 $aRegeneração in vitro
653 $aReguladores de crescimento de plantas
653 $aTransformação genética
700 1 $aSOCCOL, C. R.
700 1 $aGIOVANELLA, T. S.
700 1 $aFRANCISCON, L.
700 1 $aKESTRING, D. R.
700 1 $aGERHARDT, I. R.
700 1 $aDEGENHARDT-GOLDBACH, J.
773 $tJournal of Forestry Research$gv. 31, n. 2, p. 507-519, Apr. 2020.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Florestas (CNPF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
