Phytolith Assemblages and Systematic Associations in Grassland Species of the South-Eastern Pampean Plains, Argentina

Honaine, Mariana Fernández; Zucol, Alejandro Fabián; Osterrieth, Margarita Luisa

doi:10.1093/aob/mcl207

Cited by 75 publications

(28 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In addition, silica skeletons were also observed, being composed of cone and elongate phytoliths (6.1%), psilate elongate phytoliths (2.8%), stellate cells (0.9%), stomatal complexes and paralellepipedal psilate cells (0.9%), subepidermal cells (0.5%); and isolated stomatal complexes (2.35%) (Figure 7.1B). This description is in agreement with previous reports on the Cyperaceae family, in which it is classified as a silica accumulator (PIPERNO, 1988), and the cones are described as the phytolith diagnostic morphotype at family level (PIPERNO, 1988;FERNÁNDEZ HONAINE et al, 2009).…”

Section: Phytoliths From Plants A) Halophile-psamophile Communitysupporting

confidence: 92%

“…Stenotaphrum secundatum (Poaceae, Panicoideae) (Figure 5.1F): the dominant phytolith morphotypes are panicoid bilobate (29.63%) and cross (18.5%) in concordance with other species of the Panicoideae subfamily (FERNÁNDEZ HONAINE et al, 2006). Moreover, silica skeletons were also found, being composed of panicoid bilobate (15.74%), panicoid bilobate and stomatal complexes (6.5%), crenate elongate (2.77%), panicoid bilobate and cross (2.3%), polylobate (1.39%), psilate elongate (0.93%), stomatal complexes (0.93%), long cells with silicified cell wall and panicoid bilobate (1.39%) and cross phytoliths (0.93%).…”

Section: Phytoliths From Plants A) Halophile-psamophile Communitymentioning

confidence: 84%

See 1 more Smart Citation

Opal phytolith and isotopic studies of "Restinga" communities of Maricá, Brazil, as a modern reference for paleobiogeoclimatic reconstruction

Santos¹,

Coe

Borrelli

et al. 2015

Braz. j. oceanogr.

View full text Add to dashboard Cite

Santos et al.: Opal phytoliths and isotopes Maricá restinga 255Opal phytolith and isotopic studies of "Restinga" communities of Maricá, Brazil, as a modern reference for paleobiogeoclimatic reconstructionThe Maricá restinga, located in the eastern part of the Rio de Janeiro State (Brazil), corresponds to one of the few remaining preserved areas of the state's coastal plain. This paper reports on a study of the Maricá restinga plant communities and also presents an identification of the main plant species present in each community, with the objective of establishing reference collections, by the methods of the proxies opal phytoliths and stable carbon isotopes, for paleoenvironmental reconstructions of this coastal area during the Quaternary. Six plant communities, distributed perpendicularly to the coast line over sandy barriers, lagoonal plain, lagoon margin and weathered basement were identified: halophile-psamophile, scrub, herbaceous swamp, slack, shrubby vegetation and dry forest. In general, the plant species analyzed in each community presented low productivity of opal phytoliths, as only the Poaceae, Cyperaceae and Arecaceae families produce a great amount and diversity of morphotypes of opal phytoliths. The results of the analysis of stable carbon isotopes in sediments indicated a predominance of C3 or a mixture of C3 and C4 plants, presenting a close correlation with the results found in plants collected in each community. In conclusion, it was verified that the carbon isotope analysis associated with that of the opal phytoliths are good proxies for the reconstruction of vegetation in the study area. A Restinga de Maricá, situada na porção leste do estado do Rio de Janeiro (Brasil), corresponde a uma das poucas áreas ainda preservadas na planície litorânea fluminense. Neste trabalho, apresentamos um estudo sobre as comunidades vegetais que compõem a restinga, bem como a identificação das principais espécies presentes em cada uma delas. O objetivo é estabelecer coleções de referência para reconstituições paleoambientais desse litoral durante o Quaternário. Para isso, utilizaram-se como métodos os indicadores fitóli-tos e isótopos estáveis de carbono. Foram identificadas seis comunidades vegetais distribuídas perpendicularmente à linha de costa sobre as barreiras arenosas, planície lagunar, margem lagunar e embasamento alterado: Halófila-psamó-fila, "Scrub", Brejo herbáceo, "Slack", Vegetação arbustiva e Floresta seca. As espécies de plantas analisadas em cada comunidade apresentaram em geral baixa produtividade de fitólitos. Somente as famílias Poaceae, Cyperaceae e Arecaceae produzem fitólitos em grandes quantidades e diversidade de morfotipos. Os resultados das análises de isótopos estáveis de carbono em sedimentos indicaram um predomínio de plantas C3 ou de mistura de plantas C3 e C4, apresentando uma boa correspondência com os resultados encontrados nas plantas coletadas sobre cada uma delas. Como conclusão, verificou-se que os isótopos de carbono associados às análises fitolíticas mostraram-se bons...

show abstract

Section: Phytoliths From Plants A) Halophile-psamophile Communitysupporting

confidence: 92%

Section: Phytoliths From Plants A) Halophile-psamophile Communitymentioning

confidence: 84%

Opal phytolith and isotopic studies of "Restinga" communities of Maricá, Brazil, as a modern reference for paleobiogeoclimatic reconstruction

Santos¹,

Coe

Borrelli

et al. 2015

Braz. j. oceanogr.

View full text Add to dashboard Cite

show abstract

“…The identifi cation of freshwater sponge spicules was based on the sponge spicules collection of Lepafe and works of Volkmer-Ribeiro & Parolin (2010). For the identification of phytoliths, the references of Piperno (2006), Honaine et al (2006), Lu et al (2007) and Osterrieth et al (2009) were especially helpful. Diatom frustules were recognized based in Leandrini et al (2010).…”

Section: Methodsmentioning

confidence: 99%

Late Pleistocene and Holocene paleoenvironments in ponds and alluvial sediments of Upper Paraná River, Brazil

Guerreiro¹,

Stevaux²,

Parolin³

et al. 2013

Rev. bras. paleontol.

View full text Add to dashboard Cite

“…Fossil phytoliths are now used for the reconstruction of paleoenvironments (e.g. Alam et al 2009, Barczi et al 2009, Boyd 2005, Bremond et al 2005, 2008a, 2008b, Delhon et al 2003, Evett et al 2007, Fernandez et al 2006, Gil et al 2007, Ghosh et al 2008, Gu et al 2008, Iriarte 2006, Iriarte and Paz 2009, Lu et al 2006, Lu and Liu 2005, Morris et al 2009, Neff et al 2006, Singh et al 2007, Thorn 2004, as indicators of ancient industrial and agricultural practices (e.g. Cabanes et al 2009, Horrocks and Rechtman 2009, Horrocks and Wozniak 2008, Petoe et al 2008, Tsartsidou et al 2008, to locate occupation surfaces and plant use at excavations (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…A standard nomenclature for describing and naming phytoliths was not published until 2005 (Madella et al 2005). Today researchers continue to name and describe phytoliths produced by a wide variety of taxa (Ball et al 2007, Barboni et al 2007, Carnelli et al 2004, Fernandez et al 2006, Iriarte and Paz 2009, Tsartsidou et al 2007, Wallis 2003, but much work is needed in this area to access the full potential of phytolith analysis.…”

Section: Introductionmentioning

confidence: 99%

Review of typologic and morphometric analysis of phytoliths produced by wheat and barley

2009

View full text Add to dashboard Cite

Solid deposits of amorphous hydrated silica are formed at specific intracellular and extracellular locations in many plant taxa, including all taxa in Triticeae. These deposits of silica are called phytoliths, literally meaning "plant-rocks." Many plants produce phytoliths with morphological characteristics that appear unique to a given taxon, a phenomenon giving them taxonomic significance. When plant tissue decomposes, any phytoliths formed are released into the surrounding environment thus becoming microfossils of the plants that produced them. Analysis of microfossil phytoliths can provide information to researchers in a wide variety of disciplines, including, archaeobotany, paleoecology, phytogeography and systematics. This paper reviews current methodologies and results of typologic and morphometric analysis of wheat and barley phytoliths.

show abstract

Phytolith Assemblages and Systematic Associations in Grassland Species of the South-Eastern Pampean Plains, Argentina

Abstract: The study provides a reference collection of phytolith assemblages of the main Poaceae and Asteraceae species of Paspalum quadrifarium grassland and describes some phytolith morphotypes/systematic relationships useful for the analysis of fossil phytolith assemblages of the Pampean region.

Cited by 75 publications

References 2 publications

Opal phytolith and isotopic studies of "Restinga" communities of Maricá, Brazil, as a modern reference for paleobiogeoclimatic reconstruction

Opal phytolith and isotopic studies of "Restinga" communities of Maricá, Brazil, as a modern reference for paleobiogeoclimatic reconstruction

Late Pleistocene and Holocene paleoenvironments in ponds and alluvial sediments of Upper Paraná River, Brazil

Review of typologic and morphometric analysis of phytoliths produced by wheat and barley

Contact Info

Product

Resources

About