Results 91 to 100 of about 1,916 (198)

Gain and loss of polyadenylation signals during evolution of green algae

open access: yesBMC Evolutionary Biology, 2007
Background The Viridiplantae (green algae and land plants) consist of two monophyletic lineages: the Chlorophyta and the Streptophyta. Most green algae belong to the Chlorophyta, while the Streptophyta include all land plants and a small group of ...
Glöckner Gernot   +3 more
doaj   +1 more source

First record of Chara indica and Chara zeylanica (Charophyceae, Charales, Characeae) in the semiarid reservoirs the state of Rio Grande do Norte, Brazil [PDF]

open access: yesBiotemas, 2013
In the present study we present the first record of the macroalgaes Chara indica and Chara zeylanica for the state of Rio Grande do Norte, Brazil, and the semiarid northeastern. Specimens of C. indica and C.
Norma Catarina Bueno   +3 more
doaj  

Biodiversidad del Parque Nacional Pre-Delta (Entre Ríos, Argentina). I) Riqueza del fitoplancton

open access: yesLilloa, 2009
Mirande, V., S. E. Haleblian, G. A. Barreto & B. C. Tracanna. 2009. Biodiversidad del Parque Nacional Pre-Delta (Entre Ríos, Argentina). I) Riqueza del fitoplancton. Lilloa 46 (1-2).
Virginia Mirande   +3 more
doaj  

Structural and ultrastructural characters of the gametogenesis of Chara hydropitys (Charophyceae)

open access: yes, 2017
Los oosporangios y anteridios de Charophyceae son los órganos de reproducción sexual femeninos y masculinos respectivamente. Estas estructuras se caracterizan por su complejidad morfológica y utilidad en taxonomía y sistemática. En el presente trabajo se describen los detalles estructurales y ultraestructurales de la gametogénesis en Chara hydropitys ...
Rincón Barón, Edgar Javier   +4 more
openaire   +2 more sources

Cytokinesis in Coleochaete orbicularis (Charophyceae): an ancestral mechanism inherited by plants [PDF]

open access: yesAmerican Journal of Botany, 2004
Recently, highly vacuolate cells of Arabidopsis were shown to exhibit “polarized” cytokinesis, in which the phragmoplast and cell plate contact the mother cell wall and then progress from one side of the cell to the other, rather than forming uniformly outward from the cell center (, Proceedings of the National Academy of Sciences, USA 99: 2812–2817 ...
openaire   +2 more sources

Produktivitas Dan Serapan Nutrien Harian Spirogyra SP. Dan Hydrodictyon SP. [PDF]

open access: yes, 2016
This research aimed to analyze the potency of primary productivity (PP) and daily nutrients uptake ofSpirogyra sp. and Hydrodictyon sp. The research was conducted using Randomized Block Design andCompletely Randomized Design.
Ayu, I. P. (Inna)   +2 more
core  

A Light and Electron Microscope Survey of Algal Cell Walls. II, Chlorophyceae [PDF]

open access: yes, 1966
Author Institution: Department of Botany, University of South FloridaUnder the light and electron microscopes, the structure of the cell walls of members of the 11 orders in the Class Chlorophyceae, Division Chlorophyta, were examined. With regard to the
Dawes, Clinton J.
core  

Phytoplankton - collection, estimation, classification and diversity [PDF]

open access: yes, 2015
In the existing sampling methodology, the interest is to estimate gear-wise, species-wise landings for the state in a month, fishing effort according to different types of fishing boats and also in terms of man hours.
Gireesh, R, Thomas, V J, Varghese, Molly
core  

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