Results 81 to 90 of about 831 (178)

New finds of Chara oedophylla Feldmann in Tunisia: significance of sejoined gametangia

open access: yes, 2016
Chara oedophylla was established as a new species after examination of specimens collected by L. Gauthier in Tunisia in 1926, which were kept at the herbarium of Paris.
Soulié-Märsche Ingeborg   +4 more
core   +1 more source

What Do Fossil charophytes Whisper to Us? Palaeoecological and Palaeoenvironmental Reports from Pleistocene Continental Deposits of Umbria (Central Italy)

open access: yesGeosciences
The Early Pleistocene continental deposits of the Tiberino Basin (Central Italy) host exceptionally preserved fossil charophyte assemblages that provide critical insights into palaeoenvironmental and palaeoclimatic dynamics during a key phase of the ...
Angela Baldanza   +4 more
doaj   +1 more source

Changes in the number and size of nucleoli of Chara vulgaris L. antheridial filament cells during the period preceding light-induced re-initiation of cell divisions following a mitodepressive effect of darkness

open access: yesActa Societatis Botanicorum Poloniae, 2014
The changes in number and size of nucleoli of Chara vulgaris antheridial filament cells were monitored with the use of Howell and Black's silver staining method.
Maria Kwiatkowska, Ewa Papiernik
doaj   +1 more source

Summer temperatures from the Middle Pleistocene site Schöningen 13 II, northern Germany, determined from subfossil chironomid assemblages

open access: yesBoreas, Volume 53, Issue 4, Page 525-542, October 2024.
The manuscript presents the first subfossil chironomid record from the 300 000‐year‐old Reinsdorf sequence of the well‐known archaeological site Schöningen 13 II. We tested two geographically diverse recent chironomid–temperature calibration datasets for German lowland lake sediments and reconstructed summer air temperatures based on subfossil ...
Sonja Rigterink   +7 more
wiley   +1 more source

Adsorption of reactive dyes from aqueous solution by Chara vulgaris

open access: yes, 2009
In the present study, the adsorption of reactive dyes from aqueous solution by the aquatic macrophyte Chara vulgaris (C. vulgaris) was evaluated. Effect of pH on dye adsorption was determined and the maximum adsorption capacities of C.
Gulnaz O.
core  

Flora y vegetación de los arrozales de las provincias de Valencia y Tarragona

open access: yesCollectanea Botanica, 1987
De los 49 táxones registrados (29 emergentes y 20 flotantes o sumergidos) 11 son exóticos introducidos, de los cuales los más importantes son Echinochloa oryzoides y E.
J. L. Carretero
doaj   +1 more source

EFFECT OF CAMP LEVEL ON THALLUS GROWTH AND GAMETANGIA DEVELOPMENT IN MACROALGA CHARA VULGARIS (CHARALES, CHAROPHYTA)

open access: yes, 2013
cAMP is a second messenger which plays a regulatory role in a wide variety of biological processes in organisms ranging from prokaryotes to higher eukaryotes, but knowledge of its role in macroalgae and vascular plants is limited. We modified cAMP levels
Kobylinska, A.   +5 more
core  

Adsorption of Pb (II) Ions by Lemma minor, Potamogeton crispus and Chara vulgaris: Kinetic Modelling

open access: yes, 2009
In this stud y, adsorption of Pb (II) ions b y aquatic macroph te Lemma minor, Potamogeton crispus and Chara vulgaris. The effects of pH, initial metal concentration on adsorption were determined.
Osman Gulnaz
core  

Species differentiation in the genus Chara (Charophyceae): considerable phenotypic plasticity occurs within homogenous genetic groups [PDF]

open access: yes, 2016
Charophytes are benthic algae with a complex morphology and high phenotypic plasticity. This has led to ambiguities in species delineation. However, until now genetic studies on Chara have been based on samples collected from a restricted geographic ...
Schneider, Susanne C.   +3 more
core   +1 more source

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