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Registro Completo |
Biblioteca(s): |
Embrapa Agroindústria de Alimentos. |
Data corrente: |
12/07/2023 |
Data da última atualização: |
13/07/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
BASSO-ALVES, J. P.; SILVA, R. F. DA; COIMBRA, G.; LEITÃO, S. G.; REZENDE, C. M. DE; BIZZO, H. R.; FREITAS, L.; PAULINO, J. V.; MANSANO, V. DE F. |
Afiliação: |
JOÃO PAULO BASSO-ALVES; RAFAEL FERREIRA DA SILVA; GABRIEL COIMBRA; SUZANA GUIMARÃES LEITÃO; CLAUDIA MORAES DE REZENDE; HUMBERTO RIBEIRO BIZZO, CTAA; LEANDRO FREITAS; JULIANA VILLELA PAULINO; VIDAL DE FREITAS MANSANO. |
Título: |
Heteromorphic stamens are differentially attractive in Swartzia (Fabaceae). |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
AoB PLANTS, v. 14, p. 1-14, 2023. |
DOI: |
https://doi.org/10.1093/aobpla/plac041 |
Idioma: |
Inglês |
Conteúdo: |
The division of labour hypothesis between stamens has explained the evolution of divergent functions between dimorphic stamens in the same flower. However, little is known about whether the distinct type of stamens differs in attractiveness to pollinators. Therefore, we investigate whether the two types of stamens commonly found in Swartzia have different visual and olfactory attractants. We performed observations of anthesis dynamics, registration and collection of floral visitors, measurements of reflectance of floral parts and chemical analysis of the volatile organic compounds of the floral parts of two species, S. flaemingii and S. simplex. Both species have two distinct sets of stamens: one with smaller and abundant stamens in the centre of the flower and the other with fewer but larger abaxial stamens. The sets differ in UV reflectance (only S. simplex) and exhibit a distinct chromatic contrast. Concerning olfactory attractiveness, aliphatic compounds make up most of the odour of the two species, both whole flowers and most of their floral organs. On the other hand, only S. simplex presented apocarotenoids (as ionones) and benzenoids. Furthermore, there are differences in the proportion of volatiles emitted by the stamen in both cases, as the high proportion of sesquiterpenes among the smaller stamens compared to the larger ones. In conclusion, the two types of stamens found in S. flaemingii and S. simplex show a distinct attractiveness. In addition, our data have demonstrated diverse ways of differential attractiveness both between distinct stamens set per flower and between the two species from the same pollen flowers genus. MenosThe division of labour hypothesis between stamens has explained the evolution of divergent functions between dimorphic stamens in the same flower. However, little is known about whether the distinct type of stamens differs in attractiveness to pollinators. Therefore, we investigate whether the two types of stamens commonly found in Swartzia have different visual and olfactory attractants. We performed observations of anthesis dynamics, registration and collection of floral visitors, measurements of reflectance of floral parts and chemical analysis of the volatile organic compounds of the floral parts of two species, S. flaemingii and S. simplex. Both species have two distinct sets of stamens: one with smaller and abundant stamens in the centre of the flower and the other with fewer but larger abaxial stamens. The sets differ in UV reflectance (only S. simplex) and exhibit a distinct chromatic contrast. Concerning olfactory attractiveness, aliphatic compounds make up most of the odour of the two species, both whole flowers and most of their floral organs. On the other hand, only S. simplex presented apocarotenoids (as ionones) and benzenoids. Furthermore, there are differences in the proportion of volatiles emitted by the stamen in both cases, as the high proportion of sesquiterpenes among the smaller stamens compared to the larger ones. In conclusion, the two types of stamens found in S. flaemingii and S. simplex show a distinct attractiveness. In addition, our data have dem... Mostrar Tudo |
Palavras-Chave: |
Buzz pollination; Division of labour; Floral colour; Floral volatiles; Heteranthery; Pollen-only flowers. |
Thesagro: |
Leguminosae. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02552naa a2200313 a 4500 001 2154901 005 2023-07-13 008 2023 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1093/aobpla/plac041$2DOI 100 1 $aBASSO-ALVES, J. P. 245 $aHeteromorphic stamens are differentially attractive in Swartzia (Fabaceae).$h[electronic resource] 260 $c2023 520 $aThe division of labour hypothesis between stamens has explained the evolution of divergent functions between dimorphic stamens in the same flower. However, little is known about whether the distinct type of stamens differs in attractiveness to pollinators. Therefore, we investigate whether the two types of stamens commonly found in Swartzia have different visual and olfactory attractants. We performed observations of anthesis dynamics, registration and collection of floral visitors, measurements of reflectance of floral parts and chemical analysis of the volatile organic compounds of the floral parts of two species, S. flaemingii and S. simplex. Both species have two distinct sets of stamens: one with smaller and abundant stamens in the centre of the flower and the other with fewer but larger abaxial stamens. The sets differ in UV reflectance (only S. simplex) and exhibit a distinct chromatic contrast. Concerning olfactory attractiveness, aliphatic compounds make up most of the odour of the two species, both whole flowers and most of their floral organs. On the other hand, only S. simplex presented apocarotenoids (as ionones) and benzenoids. Furthermore, there are differences in the proportion of volatiles emitted by the stamen in both cases, as the high proportion of sesquiterpenes among the smaller stamens compared to the larger ones. In conclusion, the two types of stamens found in S. flaemingii and S. simplex show a distinct attractiveness. In addition, our data have demonstrated diverse ways of differential attractiveness both between distinct stamens set per flower and between the two species from the same pollen flowers genus. 650 $aLeguminosae 653 $aBuzz pollination 653 $aDivision of labour 653 $aFloral colour 653 $aFloral volatiles 653 $aHeteranthery 653 $aPollen-only flowers 700 1 $aSILVA, R. F. DA 700 1 $aCOIMBRA, G. 700 1 $aLEITÃO, S. G. 700 1 $aREZENDE, C. M. DE 700 1 $aBIZZO, H. R. 700 1 $aFREITAS, L. 700 1 $aPAULINO, J. V. 700 1 $aMANSANO, V. DE F. 773 $tAoB PLANTS$gv. 14, p. 1-14, 2023.
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Embrapa Agroindústria de Alimentos (CTAA) |
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Registro Completo
Biblioteca(s): |
Embrapa Meio-Norte; Embrapa Rondônia. |
Data corrente: |
08/07/2009 |
Data da última atualização: |
27/03/2014 |
Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
Autoria: |
COSTA, N. de L.; TOWNSEND, C. R.; MAGALHAES, J. A.; PEREIRA, R. G. de A. |
Afiliação: |
NEWTON DE LUCENA COSTA, CPAF-RR; CLAUDIO RAMALHO TOWNSEND, CPAF-RO; JOAO AVELAR MAGALHAES, CPAMN; RICARDO GOMES DE ARAUJO PEREIRA, CPAF-RO. |
Título: |
Avaliação agronômica sob pastejo de Panicum maximum cv. Tanzânia em Rondônia. |
Ano de publicação: |
2001 |
Fonte/Imprenta: |
Porto Velho: Embrapa Rondônia, 2001. |
Páginas: |
3 p. |
Série: |
(Embrapa Rondônia. Comunicado Técnico, 197). |
Idioma: |
Português |
Conteúdo: |
Neste trabalho avaliou-se o efeito da pressão de pastejo sobre a produção de forragem e composição química de P. maximum cv. Tanzânia. |
Palavras-Chave: |
B. decumbens; B. humidicola; Brachiaria brizantha cv; Capim-colonião; Manejo de pastagens. |
Thesagro: |
Brachiaria Brizantha; Panicum Maximum; Pastagem Cultivada; Planta Forrageira. |
Categoria do assunto: |
-- F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/100254/1/Cot197-pastagem.pdf
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Marc: |
LEADER 00978nam a2200277 a 4500 001 1983507 005 2014-03-27 008 2001 bl uuuu u0uu1 u #d 100 1 $aCOSTA, N. de L. 245 $aAvaliação agronômica sob pastejo de Panicum maximum cv. Tanzânia em Rondônia.$h[electronic resource] 260 $aPorto Velho: Embrapa Rondônia$c2001 300 $a3 p. 490 $a(Embrapa Rondônia. Comunicado Técnico, 197). 520 $aNeste trabalho avaliou-se o efeito da pressão de pastejo sobre a produção de forragem e composição química de P. maximum cv. Tanzânia. 650 $aBrachiaria Brizantha 650 $aPanicum Maximum 650 $aPastagem Cultivada 650 $aPlanta Forrageira 653 $aB. decumbens 653 $aB. humidicola 653 $aBrachiaria brizantha cv 653 $aCapim-colonião 653 $aManejo de pastagens 700 1 $aTOWNSEND, C. R. 700 1 $aMAGALHAES, J. A. 700 1 $aPEREIRA, R. G. de A.
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