Amorphous silica biomineralizations in Schoenoplectus californicus (Cyperaceae): their relation with maturation stage and silica availability

Mostrar todas las versiones(2)

The factors involved on the silicification process in Cyperaceae are scarcely known. In this study we analyse the effect of maturation stage and silica availability on the production of amorphous silica biomineralizations in culms of Schoenoplectus californicus. Young and senescent culms were col...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Fernández Honaine, Mariana, Borrelli, Natalia Lorena, Osterrieth, Margarita Luisa, Río, Luis del
Formato: Articulo
Lenguaje:Inglés
Publicado: 2013
Materias:
Botánica
Geología
Junco
Silicofitolitos
Senescencia
Aerénquima
Lagunas
Tallos
Sudeste bonaerense
Sedge
Silicophytoliths
Senescence
Aerenchyma
Culms
Ponds
SE Buenos Aires province
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/102362
https://ri.conicet.gov.ar/11336/1561
https://revistas.unc.edu.ar/index.php/BSAB/article/view/6208
http://www.scielo.org.ar/pdf/bsab/v48n2/v48n2a06.pdf
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-102362
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Botánica
Geología
Junco
Silicofitolitos
Senescencia
Aerénquima
Lagunas
Tallos
Sudeste bonaerense
Sedge
Silicophytoliths
Senescence
Aerenchyma
Culms
Ponds
SE Buenos Aires province
spellingShingle Botánica
Geología
Junco
Silicofitolitos
Senescencia
Aerénquima
Lagunas
Tallos
Sudeste bonaerense
Sedge
Silicophytoliths
Senescence
Aerenchyma
Culms
Ponds
SE Buenos Aires province
Fernández Honaine, Mariana
Borrelli, Natalia Lorena
Osterrieth, Margarita Luisa
Río, Luis del
Amorphous silica biomineralizations in Schoenoplectus californicus (Cyperaceae): their relation with maturation stage and silica availability
topic_facet Botánica
Geología
Junco
Silicofitolitos
Senescencia
Aerénquima
Lagunas
Tallos
Sudeste bonaerense
Sedge
Silicophytoliths
Senescence
Aerenchyma
Culms
Ponds
SE Buenos Aires province
description The factors involved on the silicification process in Cyperaceae are scarcely known. In this study we analyse the effect of maturation stage and silica availability on the production of amorphous silica biomineralizations in culms of Schoenoplectus californicus. Young and senescent culms were collected from ponds with different silica availability. Two complementary methodologies (calcination and staining techniques), light and scanning electron microscopy and EDS were applied for amorphous silica analyses in plants. Quantitative data were analysed by Kruskal-Wallis and a two-way ANOVA tests. There were no significant differences between silica content of culms collected in ponds with different silica availability. Instead, silica content in senescent culms was higher than in young culms (F=91.43, P<0.01). Young culms only produce cone-shaped amorphous silica bodies, located in epidermal cells overlying sclerenchyma. Senescent culms produce a higher diversity of silicified cells, such as epidermal, stellate (aerenchyma) and parenchymatic cells. Silicification process in S. californicus is clearly affected by age and may act as a mechanism of structural resistance improvement. Some cells became silicified very early in the development and others may be silicified at a later stage depending on wall characteristics or rate of transpiration.
format Articulo
Articulo
author Fernández Honaine, Mariana
Borrelli, Natalia Lorena
Osterrieth, Margarita Luisa
Río, Luis del
author_facet Fernández Honaine, Mariana
Borrelli, Natalia Lorena
Osterrieth, Margarita Luisa
Río, Luis del
author_sort Fernández Honaine, Mariana
title Amorphous silica biomineralizations in Schoenoplectus californicus (Cyperaceae): their relation with maturation stage and silica availability
title_short Amorphous silica biomineralizations in Schoenoplectus californicus (Cyperaceae): their relation with maturation stage and silica availability
title_full Amorphous silica biomineralizations in Schoenoplectus californicus (Cyperaceae): their relation with maturation stage and silica availability
title_fullStr Amorphous silica biomineralizations in Schoenoplectus californicus (Cyperaceae): their relation with maturation stage and silica availability
title_full_unstemmed Amorphous silica biomineralizations in Schoenoplectus californicus (Cyperaceae): their relation with maturation stage and silica availability
title_sort amorphous silica biomineralizations in schoenoplectus californicus (cyperaceae): their relation with maturation stage and silica availability
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/102362
https://ri.conicet.gov.ar/11336/1561
https://revistas.unc.edu.ar/index.php/BSAB/article/view/6208
http://www.scielo.org.ar/pdf/bsab/v48n2/v48n2a06.pdf
work_keys_str_mv AT fernandezhonainemariana amorphoussilicabiomineralizationsinschoenoplectuscalifornicuscyperaceaetheirrelationwithmaturationstageandsilicaavailability
AT borrellinatalialorena amorphoussilicabiomineralizationsinschoenoplectuscalifornicuscyperaceaetheirrelationwithmaturationstageandsilicaavailability
AT osterriethmargaritaluisa amorphoussilicabiomineralizationsinschoenoplectuscalifornicuscyperaceaetheirrelationwithmaturationstageandsilicaavailability
AT rioluisdel amorphoussilicabiomineralizationsinschoenoplectuscalifornicuscyperaceaetheirrelationwithmaturationstageandsilicaavailability
bdutipo_str Repositorios
_version_ 1764820441675857920

Ejemplares similares