Seed germination and post-seminal development of Victoria amazonica (Poepp.) J. C. Sowerby (Nymphaeaceae) in Central Amazon
DOI:
https://doi.org/10.20873/jbb.uft.cemaf.v10n4.rosaKeywords:
rhizomatous stem, acicular cotyledon, eophyll, metaphyll, floodplainAbstract
The Amazon floodplains are specific ecosystems with high biodiversity and endemism, divided in varzeas, white fertile waters, and Igapos with poor and acid waters, black or clear, and mixed waters between the two typologies. The main purpose of this investigation was to characterize the seed germination and post-seminal development of Victoria amazonica (Poepp.) J.C. Sowerby, one of the few hydrophytes occurring in varzea and mixed waters in the region. In addition, it was evaluated the influence of environmental characteristics on the growth of the plants. Germination was monitored in seeds with and without scarification, in control and treatments with water low oxygen and in the dark. The plant development was monitored in field and laboratory; material from juvenile and adult plants was collected at six sampling sites near Manaus. Germination is favored in the dark, in hypoxic conditions, in water and seed coat shaved. The seedling has two cotyledons, one inside the seed and the other with an acicular shape, eophyll deltoid-hastate, abortive primary root and adventitious roots. New eophylls and the first metaphyll appear in twenty-day-old plants. The stem is rhizomatous. The mixed water environment was not very different from the varzea which is reflected in a similar chemical composition of the plants of both systems. The rhizomes of the varzea environment have caloric value three times higher than that of mixed water. This condition and the presence of larger leaves suggest the varzea floodplain to be more favorable environment for growth of Victoria amazonica.
References
Belúcio LF, Souza RAL, Ferreira CP, Brazão SS. Várzeas amazônicas: heterogêneas, complexas e dinâmicas. In: Souza RAL (Org.). Ecossistemas aquáticos – tópicos especiais. Editora da Universidade Federal Rural da Amazônia (Edu-fra), Terra Firme, 2018. p. 19-81.
Braga PIS. Subdivisão fitogeográfica, tipos de vegetação, conservação e inventário florístico da Floresta Amazônica. Acta Amazonica, v.9, n.4, p.53-80, 1979. https://doi.org/10.1590/1809-43921979094s053
Ferraz IDK, Sampaio PTB. Métodos simples de arma-zenamento das sementes de andiroba (Carapa guianensis Aubl. e Carapa procera D.C. Meliaceae). Acta Amazonica, v. 26, p. 137-144, 1996. https://doi.org/10.1590/1809-43921996263144
Ferreira AG, Borghetti F. Germinação: do básico ao aplicado. Porto Alegre: Artmed, 2004.
Fowler JAP, Bianchetti A. Dormência em sementes florestais. Paraná, Embrapa. 27p. 2000. (Embrapa Florestas, Docu-mentos, 40).
Gwynne-Vaughan BA. On some points in the morphology and anatomy of the Nymphaeaceae. Kew: Keeper of the Jod-rell Laboratory, Royal Gardens, v.5, n. 7, p.287-299, 1897. https://doi.org/10.1111/j.1095-8339.1897.tb00204.x
Hoehne FC. Plantas aquáticas. São Paulo: Secretaria da Agri-cultura, Instituto de Bôtânica, 168p. 1948.
Junk, W.J. Wetlands of tropical South America. In: Whigham, D.F., Dykyjová, D., Hejný, S. (Org.) Wetlands of the world: Inventory, ecology and management Volume I. Handbook of vegetation science, vol 15-2. Springer, Dor-drecht. 1993. P.679-739. https://doi.org/10.1007/978-94-015-8212-4_14
Junk WJ, Bayley PB, Sparks RE. The flood pulse concept in river floodplain systems. In: Dodge DP (Org.) Proceedings of the International Large River Symposium (LARS). Cana-dian Special Publication in Fisheries and Aquatic Sciences, 1989. p. 110-127.
Nascimento WMO, Ramos NP, Carpi VAF, Filho JAS, Cruz ED. Temperatura e substrato para germinação de sementes de Parkia platycephala Benth. (Leguminoseae-Mimosoideae). Revista de Agricultura Tropical, v.7, n.1, p.119-129, 2003.
Piedade MTF, Worbes M, Junk WJ. Geo-ecological higher plants in amazonian flooadplain: actual use and options for sustainable management. Backhuys Publishers B.V. Leiden, p.269-290, 2001.
Prance GT. Notes on the vegetation of Amazonia. III - termi-nology of amazonian forest types subjected to inundation. Brittonia, v.31, n.1, p.26-38, 1979. https://doi.org/10.2307/2806669
Ribeiro JELS, Hopkins MJG, Vicentini A, Sothers CA, Costa MAS, Brito JM et al. Flora da Reserva Ducke - guia de identificação das plantas vasculares de uma floresta de terra firme na Amazônia Central. Manaus: INPA-DFID, 800p. 1999.
Rosa-Osman SM. Aspectos do desenvolvimento foliar, mor-fologia da flor, fruto, semente, plântula e germinação de Vic-toria amazonica (Poepp.) Sowerby (Nymphaeaceae) na Amazônia Central. 2005, 103f. Dissertação (Mestrado) – Universidade Estadual do Amazonas, Manaus.
Rosa-Osman SM, Rodrigues R, Mendonça MS, Souza LA, Piedade MTP. Morfologia da flor, fruto e plântula de Victo-ria amazonica (Poepp.) J.C. Sowerby (Nymphaeaceae). Acta Amazonica, v.41, n.1, p.21-28, 2011. https://doi.org/10.1590/S0044-59672011000100003
Salati E. O clima atual depende da floresta. In: Salati E (Org.) Amazônia: desenvolvimento, integração e ecologia. São Paulo: Brasiliense, 1983. p.15-44.
Schubart HOR. Ecologia e utilização de florestas. In: Salati E, junk WJ, Shubart HOR, Oliveira AE (Org.) Amazônia: desenvolvimento, integração e ecologia. São Paulo: Brasili-ense,1982. p.101-143.
Sculthorpe CD. The biology of aquatic vascular plants. Lon-don: Edward Arnold Publishers, 1985.
Sert, MA, Bonato CM, Souza LA. Germinação da semente. In: Souza LA (Org). Sementes e plântulas - germinação, es-trutura e adaptação. Ponta Grossa: Todapalavra Editora, 2009. p.91-117.
Souza LA. Morfologia e anatomia vegetal – célula, tecidos, órgãos e plântula. Ponta Grossa: Editora UEPG, 2009.
Souza LA, Moscheta IS, Mourão KSM, Albiero ALM, Mon-tanher DR, Paoli AAS. Morfologia da plântula e do tirodendro. In: Souza LA (Org.) Sementes e plântulas - germinação, estrutura e adaptação. Ponta Grossa: Todapa-lavra Editora, 2009. p.119-190.
Tozin LRS, Corrêa-da-Costa LBL, Scremin-Dias E. Fruit and seed biometry and germination of Victoria amazonica (Poepp.) J.C. Sowerby (Nymphaeaceae) from the Pantanal floodplain. Acta Scientiarum, Biological Sciences, v.38, n.2, p.221-227, 2016.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2022 Luiz Antonio de Souza, Sônia Maciel da Rosa, Maria Teresa Fernandez Piedade
This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright (c) 2024 - Journal of Biotechnology and Biodiversity
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms:
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License (CC BY 4.0 at http://creativecommons.org/licenses/by/4.0/) that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
Authors are permitted and encouraged to post their work online (e.g. in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (Available at The Effect of Open Access, at http://opcit.eprints.org/oacitation-biblio.html).
