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Gilberto J. De Moraes - One of the best experts on this subject based on the ideXlab platform.
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Hosts of Raoiella indica Hirst (Acari: Tenuipalpidae) Native to the Brazilian Amazon
Journal of Agricultural Science, 2017Co-Authors: Cristina Antonia Gómez-moya, Manoel G. C. Gondim, Talita P. S. Lima, Elisângela Gomes Fidelis De Morais, Gilberto J. De MoraesAbstract:The expansion of red palm mite (RPM), Raoiella indica (Acari: Tenuipalpidae) in Brazil could impact negatively the native plant species, especially of the family Arecaceae. To determine which species could be at risk, we investigated the development and reproductive potential of R. indica on 19 plant species including 13 native species to the Brazilian Amazon (12 Arecaceae and one Heliconiaceae), and six exotic species, four Arecaceae, a Musaceae and a Zingiberaceae. Values of the instantaneous rate of increase ( r i ) were initially estimated at 7, 14, 21 and 28 days after infestation of each species. Higher values of r i (> 0.05) were determined on the Arecaceae Adonidia merrillii , Astrocaryum jauari , Cocos nucifera , Bactris simplicifrons , Mauritia flexuosa , Phoenix dactylifera and Socratea exorrhiza , and on the Heliconiaceae Heliconia psittacorum Sassy; these were classified as “potential primary hosts”. Lower, but still positive values of r i (0-0.05) were determined on the Arecaceae Bactris maraja , Oenocarpus bacaba , Oenocarpus bataua and on the Musaceae Musa × paradisiaca (Prata variety); these were classified as “potential secondary hosts”. Negative values of r i were determined for the remaining plants, i.e. , the Arecaceae Astrocaryum aculeatum , Attalea maripa , Bactris gasipaes , Elaeis guineensis , Euterpe oleracea , Euterpe precatoria , and the Zingiberaceae Alpinia rosea ; these were considered “non-hosts”. Species with r i < 0.05 were considered not to be threatened by the RPM. Biological parameters of RPM were evaluated on the plant species with positive r i (except B. maraja ) and two native species with negative r i ( E. oleracea and E. precatoria ). Mean developmental time ranged from 14.7 days on C. nucifera to 21.4 days on Musa × paradisiaca , showing a significant influence of the plant substrate. Immature viability, oviposition rate, net reproductive rate (R 0 ) and intrinsic rate of increase ( r m ) were affected by the plant species.
Lucimara M.c. Cordeiro - One of the best experts on this subject based on the ideXlab platform.
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Characterization and technological properties of peach palm (Bactris gasipaes var. gasipaes) fruit starch.
Food research international (Ottawa Ont.), 2020Co-Authors: Mária Herminia Ferrari Felisberto, Mariana Souza Costa, Flávia Villas Boas, Carolina Lopes Leivas, Célia Maria Landi Franco, Sérgio Michielon De Souza, Maria Teresa Pedrosa Silva Clerici, Lucimara M.c. CordeiroAbstract:Peach palm fruit mesocarp (Bactris gasipaes var. gasipaes) is already consumed in the Northern region of Brazil, after its cooking and is known as a source of starch and carotenoids and like all fruits it has low storage stability. This work characterized the starch extracted from the mesocarp of peach palm fruit using with water in terms of its physical and chemical properties. The SEM micrographs show that starch presented bimodal distribution (size 3.9-10.4 µm), while the smaller granules had a smooth surface and an oval or conical shape, the larger granules were spherical with holes and cracks on the surface. The starch presented low amylose content (
Cristina Antonia Gómez-moya - One of the best experts on this subject based on the ideXlab platform.
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Hosts of Raoiella indica Hirst (Acari: Tenuipalpidae) Native to the Brazilian Amazon
Journal of Agricultural Science, 2017Co-Authors: Cristina Antonia Gómez-moya, Manoel G. C. Gondim, Talita P. S. Lima, Elisângela Gomes Fidelis De Morais, Gilberto J. De MoraesAbstract:The expansion of red palm mite (RPM), Raoiella indica (Acari: Tenuipalpidae) in Brazil could impact negatively the native plant species, especially of the family Arecaceae. To determine which species could be at risk, we investigated the development and reproductive potential of R. indica on 19 plant species including 13 native species to the Brazilian Amazon (12 Arecaceae and one Heliconiaceae), and six exotic species, four Arecaceae, a Musaceae and a Zingiberaceae. Values of the instantaneous rate of increase ( r i ) were initially estimated at 7, 14, 21 and 28 days after infestation of each species. Higher values of r i (> 0.05) were determined on the Arecaceae Adonidia merrillii , Astrocaryum jauari , Cocos nucifera , Bactris simplicifrons , Mauritia flexuosa , Phoenix dactylifera and Socratea exorrhiza , and on the Heliconiaceae Heliconia psittacorum Sassy; these were classified as “potential primary hosts”. Lower, but still positive values of r i (0-0.05) were determined on the Arecaceae Bactris maraja , Oenocarpus bacaba , Oenocarpus bataua and on the Musaceae Musa × paradisiaca (Prata variety); these were classified as “potential secondary hosts”. Negative values of r i were determined for the remaining plants, i.e. , the Arecaceae Astrocaryum aculeatum , Attalea maripa , Bactris gasipaes , Elaeis guineensis , Euterpe oleracea , Euterpe precatoria , and the Zingiberaceae Alpinia rosea ; these were considered “non-hosts”. Species with r i < 0.05 were considered not to be threatened by the RPM. Biological parameters of RPM were evaluated on the plant species with positive r i (except B. maraja ) and two native species with negative r i ( E. oleracea and E. precatoria ). Mean developmental time ranged from 14.7 days on C. nucifera to 21.4 days on Musa × paradisiaca , showing a significant influence of the plant substrate. Immature viability, oviposition rate, net reproductive rate (R 0 ) and intrinsic rate of increase ( r m ) were affected by the plant species.
Christian Listabarth - One of the best experts on this subject based on the ideXlab platform.
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Pollination of Bactris by Phyllotrox and Epurea. Implications of the palm breeding beetles on pollination at the community level
Biotropica, 1996Co-Authors: Christian ListabarthAbstract:The reproductive biology of three syntopical palm species, Bactris bifida, B. monticola, and B. gasipaes was investigated to determine their pollination strategies and pollinators, and to elucidate their impact on pollination for the local palm assemblage. In Peruvian Amazonia, Bactris is pollinated mainly by beetles of the genera Phyllotrox (Curculionidae) and Epurea (Nitidulidae), which are attracted to the protogynous, heavily scented inflorescences for mating and oviposition. In experiments (N = 15), beetles were constantly raised in the staminate flowers, which abscise after anthesis. Pollinator activity is crepuscular-nocturnal and the beetles change from male phase inflorescences to female phase inflorescences during twilight. The non-overlap of sexual phases within individuals largely promotes outbreeding in Bactris. The extensively cultivated B. gasipaes is pollinated by other species of Phyllotrox and Epurea than the primary forest species B. bifida and B. monticola. The latter two share the same pollinators with two species of Desmoncus. These species constitute an assemblage of reproductively similar palms. The beetle pollinators are associated with the palms mainly at and above the generic level, although development of their larvae in the abscised flowers of the host species probably leads to a chemical preference and thus "flower constancy" to that species. At the end of the host plant's flowering period beetles may switch to another assemblage member, because the palms provide the same resources. The assemblage members are patchily distributed, and population density in such patches is extremely high. They show staggered flowering and the most abundant species within the assemblage flower 2 or even 3 times a year, while less abundant species flower once a year.
Manoel G. C. Gondim - One of the best experts on this subject based on the ideXlab platform.
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Hosts of Raoiella indica Hirst (Acari: Tenuipalpidae) Native to the Brazilian Amazon
Journal of Agricultural Science, 2017Co-Authors: Cristina Antonia Gómez-moya, Manoel G. C. Gondim, Talita P. S. Lima, Elisângela Gomes Fidelis De Morais, Gilberto J. De MoraesAbstract:The expansion of red palm mite (RPM), Raoiella indica (Acari: Tenuipalpidae) in Brazil could impact negatively the native plant species, especially of the family Arecaceae. To determine which species could be at risk, we investigated the development and reproductive potential of R. indica on 19 plant species including 13 native species to the Brazilian Amazon (12 Arecaceae and one Heliconiaceae), and six exotic species, four Arecaceae, a Musaceae and a Zingiberaceae. Values of the instantaneous rate of increase ( r i ) were initially estimated at 7, 14, 21 and 28 days after infestation of each species. Higher values of r i (> 0.05) were determined on the Arecaceae Adonidia merrillii , Astrocaryum jauari , Cocos nucifera , Bactris simplicifrons , Mauritia flexuosa , Phoenix dactylifera and Socratea exorrhiza , and on the Heliconiaceae Heliconia psittacorum Sassy; these were classified as “potential primary hosts”. Lower, but still positive values of r i (0-0.05) were determined on the Arecaceae Bactris maraja , Oenocarpus bacaba , Oenocarpus bataua and on the Musaceae Musa × paradisiaca (Prata variety); these were classified as “potential secondary hosts”. Negative values of r i were determined for the remaining plants, i.e. , the Arecaceae Astrocaryum aculeatum , Attalea maripa , Bactris gasipaes , Elaeis guineensis , Euterpe oleracea , Euterpe precatoria , and the Zingiberaceae Alpinia rosea ; these were considered “non-hosts”. Species with r i < 0.05 were considered not to be threatened by the RPM. Biological parameters of RPM were evaluated on the plant species with positive r i (except B. maraja ) and two native species with negative r i ( E. oleracea and E. precatoria ). Mean developmental time ranged from 14.7 days on C. nucifera to 21.4 days on Musa × paradisiaca , showing a significant influence of the plant substrate. Immature viability, oviposition rate, net reproductive rate (R 0 ) and intrinsic rate of increase ( r m ) were affected by the plant species.
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Eriophyoid mites (Acari: Prostigmata: Eriophyoidea) on palms (Arecaceae) from the Brazilian Amazon: a new genus and four new species.
Zootaxa, 2012Co-Authors: Aleuny C. Reis, Manoel G. C. Gondim, Denise Navia, Carlos H.w. FlechtmannAbstract:A new genus and four new species of eriophyoid mites associated with native palm trees (Arecaceae) are described andillustrated from the Brazilian Amazon in the State of Roraima, Brazil. They include a new genus and two new species inthe family Eriophyidae, namely, Reginesus n. gen. et macuxi n. sp. from Bactris aff. maraja Mart. and Nasuchus socratea n. sp. from Socratea exorrhiza (Mart.) H. Wendl. and Bactris gasipaes Kunth. Two new species were also described inthe family Phytoptidae: Propilus Bactris n. sp. from Bactris maraja Mart. and Retracrus pupunha n. sp. from Bactris gasipaes Kunth.
