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Pollen Morphology of 25 Apocynaceae Species in the Adolpho Ducke Forest Reserve, Amazonas (Brazil)

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Pollen Morphology of 25 Apocynaceae Species in the Adolpho Ducke Forest Reserve, Amazonas (Brazil) See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/291954345 Pollen morphology of 25 Apocynaceae species in the Adolpho Ducke Forest Reserve, Amazonas (Brazil) Article in Palynology · January 2016 DOI: 10.1080/01916122.2016.1146173 CITATIONS READS 0 71 7 authors, including: Maria Lúcia Absy Silane A. F. Silva Caminha Instituto Nacional de Pesquisas da Amazônia Universidade Federal de Mato Grosso (UFMT) 76 PUBLICATIONS 1,479 CITATIONS 12 PUBLICATIONS 258 CITATIONS SEE PROFILE SEE PROFILE Vania Gonçalves-Esteves Cláudia Barbieri Ferrreira Mendonça Federal University of Rio de Janeiro Federal University of Rio de Janeiro 5 PUBLICATIONS 3 CITATIONS 50 PUBLICATIONS 86 CITATIONS SEE PROFILE SEE PROFILE Some of the authors of this publication are also working on these related projects: RECURSOS TRÓFICOS OBTIDOS POR ABELHAS SEM FERRÃO (HYMENOPTERA, APIDAE, MELIPONINI) NA AMAZÔNIA CENTRAL View project All content following this page was uploaded by Marcos Gonçalves Ferreira on 02 September 2016. The user has requested enhancement of the downloaded file. All in-text references underlined in blue are linked to publications on ResearchGate, letting you access and read them immediately. Palynology ISSN: 0191-6122 (Print) 1558-9188 (Online) Journal homepage: http://www.tandfonline.com/loi/tpal20 Pollen morphology of 25 species in the family Apocynaceae from the Adolpho Ducke Forest Reserve, Amazonas, Brazil Isabella Dessaune Rodrigues, Maria Lúcia Absy, Silane Aparecida F. da Silva- Caminha, Vania Gonçalves-Esteves, Claudia Barbieri Ferreira Mendonça, Marcos Gonçalves Ferreira & Cleonice de Oliveira Moura To cite this article: Isabella Dessaune Rodrigues, Maria Lúcia Absy, Silane Aparecida F. da Silva- Caminha, Vania Gonçalves-Esteves, Claudia Barbieri Ferreira Mendonça, Marcos Gonçalves Ferreira & Cleonice de Oliveira Moura (2016): Pollen morphology of 25 species in the family Apocynaceae from the Adolpho Ducke Forest Reserve, Amazonas, Brazil, Palynology, DOI: 10.1080/01916122.2016.1146173 To link to this article: http://dx.doi.org/10.1080/01916122.2016.1146173 Accepted author version posted online: 25 Jan 2016. Published online: 30 Aug 2016. Submit your article to this journal Article views: 26 View related articles View Crossmark data Full Terms & Conditions of access and use can be found at http://www.tandfonline.com/action/journalInformation?journalCode=tpal20 Download by: [CAPES] Date: 02 September 2016, At: 08:56 PALYNOLOGY, 2016 http://dx.doi.org/10.1080/01916122.2016.1146173 Pollen morphology of 25 species in the family Apocynaceae from the Adolpho Ducke Forest Reserve, Amazonas, Brazil Isabella Dessaune Rodriguesa, Maria Lucia Absyb*, Silane Aparecida F. da Silva-Caminhab,c, Vania Goncalves-Esteves¸ d, Claudia Barbieri Ferreira Mendonca¸ d, Marcos Goncalves¸ Ferreirab and Cleonice de Oliveira Mourab aInstituto de Ci^encias Biologicas, Laboratorio de Bot^anica, Universidade Federal do Amazonas, Av. General Rodrigo Octavio J. Ramos, 6200, Japiim, 69077000, Manaus, Amazonas, Brasil; bInstituto Nacional de Pesquisas da Amaz^onia (INPA), Coordenac¸~ao de Pesquisas em Biodiversidade, Laboratorio de Palinologia, Av. Andre Araujo, 2936, Bairro Petropolis, 69067-375 Manaus, Amazonas, Brasil; cDepartamento de Geologia Geral, Laboratorio de Paleontologia e Palinologia, Universidade Federal de Mato Grosso (UFMT), Av. Fernando Corr^ea da Costa, 2367, Boa Esperanca,¸ CEP:78060-900, Cuiaba-MT, Brasil; dDepartamento de Bot^anica, Laboratorio de Palinologia, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil ABSTRACT KEYWORDS The Apocynaceae family consists of approximately 4555 species worldwide, distributed among 415 pollen morphology; genera. In Brazil, this family is represented by 90 genera and 850 species. The Adolpho Ducke Forest Apocynaceae; Amazon; Reserve, part of the Instituto Nacional de Pesquisas da Amazonia^ (INPA) since 1963, comprises 100 km2 of Ducke Reserve; Brazil non-isolated continuous primary forest, and 40 species and 16 genera of Apocynaceae have been recorded in this area. Pollen grains, collected from flower buds and/or flowers of voucher specimens deposited at the INPA Herbarium collection, were processed using the acetolysis method, and measured, described and photographed by light microscopy and scanning electron microscopy. The study included 25 Apocynaceae species distributed among 14 genera. The pollen grains were porate to colporate, with exine ornamentation varying from psilate or scabrate to microreticulate. Other morphological characteristics were pores with granules at the base of the annulus in Odontadenia, a distinct margo forming arches around the colpus in Geissospermum, and the presence of a thick endocingulum in the equatorial region in species of Tabernaemontana. 1. Introduction Approximately 100 genera and 1500 species of this family can be found in the American tropics (Rapini 2004), of which 90 Apocynaceae Juss. belongs to the Order Gentianales, which genera and 850 species are present in Brazil (Souza & Lorenzi includes four other families, namely Gelseminaceae, Gentiana- 2005). ceae, Loganiaceae and Rubiaceae (APG III 2009). The Apocyna- The Adolpho Ducke Forest Reserve (RFAD) is located in Bra- ceae family can be divided into five subfamilies: Rauvolfioideae zilian Amazonia and it contains 16 genera and 40 species, (cosmopolitan; 10 tribes/83 genera; 915 species), Apocynoideae including trees, treelets, lianas and some shrubs such as (cosmopolitan; eight tribes/80 genera; 822 species), Periplocoi- Tabernaemontana, many of which have great economic and deae (Old World; 33 genera), Secamonoideae (Old World; eight medicinal value. These species have white or brownish latex; genera) and Asclepiadoideae (cosmopolitan; four tribes/172 opposite, verticillate or alternate leaves; bisexual flowers; simple genera) (Endress & Bruyns 2000; Endress et al. 2007; Middleton fruits, berries, drupes, capsules or follicles; and single or multiple 2007). seeds. The flowers are pollinated by butterflies and bees and Apocynaceae has been the subject of several taxonomic, fruits dispersed by monkeys and birds (Ribeiro et al. 1999). evolutionary and phylogenetic analyses (Endress & Stevens The objective of this study was to assess pollen morphology 2001; Endress et al. 2007; Ionta & Judd 2007; Simoes~ et al. 2007; in 25 Apocynaceae species and compare them with others Wyatt & Lipow 2007; Rapini 2012), many of which have described in the literature. Plant taxonomy of RFAD was previ- described pollen grain morphological characteristics (Nilsson ously performed by Ribeiro et al. (1999) in the Identification 1990; Nilsson et al. 1993; Verhoeven & Venter 1998; Furness guide of the vascular plants of a terra-firme forest in the Central 2007; Van Der Ham et al. 2010; Van der Weide & Van der Ham Amazon À Ducke Flora Reserve. This study will contribute to the 2012). The earliest pollen record for Apocynaceae appears in Amazon Palynologic Database of the National Institute of Ama- the Paleocene of Borneo (Muller 1981). In Amazonia, Apocyna- zonian Research (Instituto Nacional de Pesquisas da Amazonia^ À ceae pollen fossil was also found in the Miocene as Psilastepha- INPA) and will be used to expand the INPA Pollen Collection, as noporites herngreenii (Hoorn 1993) and Ctenolophonidites well as to provide information for future taxonomic analyses. suigeneris (Silva-Caminha et al. 2010). CONTACT Maria Lucia Absy [email protected] © 2016 AASP À The Palynological Society 2 I. D. RODRIGUES ET AL. 2. Materials and methods 1960) and mounted on slides with glycerinated gelatine, and cover slips were affixed to the slides with paraffin. The slides The taxonomy of the species described in this study was deter- were deposited in the INPA Pollen Collection, in Manaus (Ama- mined by collaborators from the Ducke Flora Reserve Project, zonas). The pollen grains were measured, described and photo- who are specialists in the Apocynaceae family (Hopkins 2005). It micrographed (Canon A620 digital camera) using a light was not possible to describe all (40) of the species studied in microscope (Zeiss) at 1000£ magnification. Measurements this project due to the absence of voucher specimens with were taken of 25 pollen grains, randomly, in polar and equato- flower buds for pollen collection. rial views in the isopolar grains and diameter 1 (D1) and diame- ter 2 (D2) in the apolar grains. For the other measurements, 2.1. The Adolpho Ducke Forest Reserve (RFAD) 10 grains were measured (exine thickness, equatorial diameter The RFAD was classified as a Biological Reserve in 1963. It is in polar view, apocolpium side and apertures pollen grains). For located to the north of Manaus city, at kilometre 26 along the the equatorial views, the polar and equatorial diameters were AM-010 highway (Manaus-Itacoatiara) at, according to the mean measured, and the shape of the grain was established based on geographic coordinate, 0257'50.63''S, 5957'18.21''W (Figure 1) the relationship between the polar and equatorial mean diame- and covers an area of 10,073 ha. The climate is classified as the ters (P/E). Pollen size was characterised according to the Af group (humid equatorial) of Koeppen, and the average yearly method of Erdtman (1952) and using the terminology of Punt precipitation is 2000 mm, with two distinct seasons: rainy et al. (2007). Statistical analyses were based on calculations of (November to May) and dry (June to October) (Koeppen€ 1948). the arithmetic mean (x), standard
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