2016
DOI: 10.1590/0001-3765201620140715
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Ultrastructure and pollen morphology of Bromeliaceae species from the Atlantic Rainforest in Southeastern Brazil

Abstract: Pollen grain morphology of Bromeliaceae species collected in areas of the Atlantic Rainforest of southeastern Brazil was studied. The following species were analyzed: Aechmea bambusoides, T. stricta Sol., T. gardneri Lindl., T. geminifl ora Brongn. and Vriesea grandifl ora Leme. Light and scanning electron microscopy were used and the species were grouped into three pollen types, organized according to aperture characteristics: Type I -pantoporate pollen grains observed in P. petropolitana, Type II -2-porate p… Show more

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Cited by 14 publications
(10 citation statements)
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“…For each drop, we counted the pollen grains using the ‘scan’ technique (Caballero-Martínez et al 2009) and thus determined the frequency of bromeliad pollen. The bromeliad pollen could be easily distinguished from the pollen of other families present in the samples, but it is difficult with some genera at subfamily level (Silva et al 2016; Souza et al 2017). In this case, the only overlapping species from the same genus were both species of Werauhia , and no bat was captured at that moment.…”
Section: Methodsmentioning
confidence: 99%
“…For each drop, we counted the pollen grains using the ‘scan’ technique (Caballero-Martínez et al 2009) and thus determined the frequency of bromeliad pollen. The bromeliad pollen could be easily distinguished from the pollen of other families present in the samples, but it is difficult with some genera at subfamily level (Silva et al 2016; Souza et al 2017). In this case, the only overlapping species from the same genus were both species of Werauhia , and no bat was captured at that moment.…”
Section: Methodsmentioning
confidence: 99%
“…Para Ananas bracteatus (Bromelioideae), Silva et al (2016) mencionam grãos heteropolares (aqui isopolares), ligeiramente maiores do que o aqui encontrado, ornamentação reticulada (aqui reticulada foveolada), lumens arredondados e variáveis em forma, com muros estreitos (aqui há grânulos no interior dos lumens e muros heterobrocados), contudo as outras características são semelhantes. Souza et al (2017) também estudaram essa espécie; os dados que obtiveram são semelhantes aos do presente trabalho.…”
Section: Discussionunclassified
“…Quanto a Billbergia distachia (Bromelioideae), Wanderley & Melhem (1991) não observaram diferenças significativas de tamanho entre amostras tratadas pela acetólise de Erdtman e pelo método da acetólise láctica e citam exina reticulada heterobrocada tal como aqui. Silva et al (2016) apontam que os grãos de pólen dessa espécie, ao serem processados, não resistem à acetólise e, assim, não têm dados palinológicos para esse táxon. No presente trabalho, entretanto, não foi encontrado tal impedimento.…”
Section: Discussionunclassified
“…Halbritter (2016a) relata para Aechmea nudicaulis características semelhantes às encontradas no presente trabalho, exceto para a membrana da abertura, referida pela citada autora como lisa (sendo aqui visualizada como reticulada), além de, quanto à polaridade, grãos isopolares a levemente heteropolares, além de eventual presença de grãos 3-porados. Por outro lado, Silva et al (2016) reportam para a mesma espécie grãos grandes (aqui são médios) e heteropolares (aqui são isopolares).…”
Section: Discussionunclassified