O gênero Swartzia Schreb. (Leguminosae, Papilionoideae) no estado do Rio de Janeiro

Mansano, Vidal de Freitas; Lima, Jacira Rabelo

doi:10.1590/2175-7860200758217

Cited by 5 publications

(2 citation statements)

References 13 publications

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“…Another characteristic that is shared among seeds of the four species studied is the presence of the aril, which is predominant among the species of Swartzia, as the absence of this structure is mentioned as rare in the genus (Mansano & Lima 2007). The aril is white, the predominant coloration for the aril of seeds of Swartzia (Cowan 1967).…”

Section: Discussionmentioning

confidence: 93%

Morphoanatomical and histochemical study of seeds of four species of Swartzia (Fabaceae - Papilionoideae) at Tupé Sustainable Development Reserve AM/Brazil

et al. 2021

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Background: In Brazil, Swartzia Schreb. occurs in almost all phytogeographic domains, but the greatest richness of species is concentrated in the Amazon. Question: What are the morphological and anatomical variations of the seeds of species of the Swartzia? Studied species: Swartzia laevicarpa, Swartzia macrocarpa, Swartzia recurva, and Swartzia sericea. Study site and dates: The species were collected in the Sustainable Development Reserve of Tupé - AM Brazil, in 2017 and 2018. Methods: Cross-sections of the seed coat were cut, to observe the characteristics of the seed coat in the hilar region and opposite it. Histochemical tests were performed on the cross-sections of fresh samples, to verify ergastic substances present in the aril, seed coat and cotyledons. Results: The seeds have a smooth and membranous seed coat, partially covered by a spongy aril in Swartzia recurva, filamentous in S. laevicarpa, S. sericea, and S. macrocarpa. Linear hylum, imperceptible micropyle, cryptoradicular embryo, fleshy cotyledons, containing starch, lipids, alkaloids, protein and the rudimentary plumule. Conclusions: Morphological characteristics of the seed, such as shape, color, consistency of the aril and size of the hilum, are important diagnostic characters in the recognition of this species in the field, through its respective seeds; in the same way, the information on soil seed bank is expanded. The presence of fleshy cotyledons indicates and adaptation to the type of environment in which these species occurs, while the knowledge of ergastic substances present in the aril, seed coat and cotyledons, contributes to the understanding of their germinative processes.

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Section: Discussionmentioning

confidence: 93%

Morphoanatomical and histochemical study of seeds of four species of Swartzia (Fabaceae - Papilionoideae) at Tupé Sustainable Development Reserve AM/Brazil

et al. 2021

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“…Glaz. (Fabaceae) is an endemic legume tree species that occurs on the slopes of coastal hills with sandbanks in the Região dos Lagos, Rio de Janeiro, Brazil ( Mansano and Lima, 2007 ;Bohrer et al, 2009 ). Swartzia glazioviana is considered a threatened species ( Ministério do Meio Ambiente, 2014 ) due to its rare distribution and limited occurrence in very disturbed and fragmented habitats, which may compromise the viability of their populations as evolutionary units.…”

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confidence: 99%

DNA microsatellite markers for Swartzia glazioviana (Fabaceae), a threatened species from the Brazilian Atlantic Forest

et al. 2016

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Premise of the study:Development and characterization of a set of DNA microsatellite markers for Swartzia glazioviana (Fabaceae), a naturally rare and threatened tree species, were carried out to investigate its conservation genetics.Methods and Results:Through an enriched genomic library procedure, 10 DNA microsatellite loci were isolated and characterized for the species. The mean expected heterozygosity was 0.776 (0.424–0.894). Cross-species amplifications of these loci were successfully tested for six congener taxa (S. apetala var. apetala, S. flaemingii, S. langsdorffii, S. macrostachya, S. myrtifolia var. elegans, and S. simplex var. continentalis).Conclusions:The 10 polymorphic microsatellite markers developed are quite informative and will provide a valuable resource to study the population and conservation genetics of S. glazioviana and other Swartzia species.

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Genetic conservation of small populations of the endemic tree Swartzia glazioviana (Taub.) Glaz. (Leguminosae) in the Atlantic Forest

et al. 2017

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O gênero Swartzia Schreb. (Leguminosae, Papilionoideae) no estado do Rio de Janeiro

Cited by 5 publications

References 13 publications

Morphoanatomical and histochemical study of seeds of four species of Swartzia (Fabaceae - Papilionoideae) at Tupé Sustainable Development Reserve AM/Brazil

Morphoanatomical and histochemical study of seeds of four species of Swartzia (Fabaceae - Papilionoideae) at Tupé Sustainable Development Reserve AM/Brazil

DNA microsatellite markers for Swartzia glazioviana (Fabaceae), a threatened species from the Brazilian Atlantic Forest

Genetic conservation of small populations of the endemic tree Swartzia glazioviana (Taub.) Glaz. (Leguminosae) in the Atlantic Forest

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