Results 101 to 110 of about 187 (136)

Penium amplificatum status nova (Desmidiales, Streptophyta)

Phytotaxa, 2012
From extensive field studies in the Dutch province of Drenthe and comparative literature research it appeared that Penium spirostriolatum var. amplificatum differs from the nominate variety of Penium spirostriolatum not only by its capitate cell ends but also by coarser and more spiralized ridges on the cell wall and by distinctly different ecological ...
van Westen, M., Coesel, P.
openaire   +2 more sources

Host specificity of epiphytic diatom (Bacillariophyceae) and desmid (Desmidiales) communities

Aquatic Ecology, 2016
The nature of the relationships between host plants and associated microalgal epiphyton in freshwater ecosystems is largely undetermined. Many studies assume that the host plant, as a biologically active substrate, must have a direct influence on associated epiphytic communities, whereas other studies favor the view that host plants are a neutral ...
Mutinová, Petra Thea, Neustupa, Jiří, Bevilacqua, Stanislao, Terlizzi, Antonio   +3 more
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Zieralgen (Desmidiales, Mesotaeniaceae) aus Eifelmaaren

Decheniana : Verhandlungen des Naturhistorischen Vereins der Rheinlande und Westfalens, 1979
Es wurde das Vorkommen der Desmidiales (Conjugatophyceae) und der Mesotaeniaceae (Conjugatophyceae, Zygnematales) in Eifelmaaren (Pulvermaar, Weinfelder Maar, Schalkenmehrener Maar und Laacher See) untersucht. Die dort gefundenen Taxa werden diskutiert und abgebildet.
openaire   +1 more source

Validation of the generic name Prescottiella gen. nov. (Desmidiales, Zygnematophyceae): a rare African desmid

African Journal of Aquatic Science, 2023
Prescottiella sudanensis is a rare, asymmetrical desmid currently known from only a few countries in equatorial Africa. During the present  study, P. sudanensis cells were found in water samples from Vogel Pan located in the far north-eastern side of Namibia, thereby  expanding the known geographical distribution of the species.
Janse van Vuuren, Sanet, Levanets, Anatoliy   +1 more
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Habitat conditions for Desmidiales algae in the water bodies of the Khanty-Mansiysk Autonomous Okrug – Yugra

Issues of modern algology (Вопросы современной альгологии), 2022
The habitat conditions of algae Desmidales in the sphagnum bogs of the Khanty-Mansiysk Autonomous Okrug ‒ Yugra are analyzed. The results of studies of desmid algae found in the swamps of the region are presented, their spatial distribution is indicated.
Olga N. Skorobogatova, Anna S. Moskaleva
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Diverzita a rozšíření druhového komplexu Euastrum humerosum / didelta (Desmidiales)

2018
From 23 European and North American strains Euastrum humerosum/didelta species complex (Desmidiales) we have obtained 3 lineages in molecular marker trnGuuc group II intron. We did not acquire significant and homogenous results in SSU intron. It is probable that the lineages are very young.
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Alometrická diverzita a plasticita buněčných morfologií krásivek (Desmidiales, Zygnematophyceae)

2022
If the proportions of two features of an organism change during its growth, their relationships can be described as allometry. The first partof this thesis quantifies the allometric relationship of semicellular perimeter and area of 11 species of unicellular microalgae from the genus Euastrum.
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Phylogeny of the Conjugating Green Algae (Zygnematales and Desmidiales) Based on Plastid and Mitochondrial Gene Sequences

Journal of Phycology, 2002
AbstractThe conjugating green algae (Order Zygnematales and Desmidiales) are charophyceans, that is, they are among the green algae most closely related to land plants. Compared to the five other groups of charophyceans (Mesostigma, Klebsormidiales, Chlorokybales, Coleochaetales, Charales), the conjugating greens are by far the most diverse ...
R. M. McCourt, J. Park, D. A. Hewitt, K. G. Karol   +3 more
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?????????????? ?? ?????????????????????????????? ???????????????????????? Desmidiales ?????????????? ?????????????????????????? ???????????????????? ?????????? (???????????????????? ??????????????)

2012
?????????????????? ???????????????????? ???????????????????????? Desmidiales ???????? ???????? (??????????????, ????????, ????????????????) ?????????????? ?????????????????????????? ???????????????????? ??????????. ???????????????????? 132 ???????? Desmidiales, ?????????????????????????? ???????? ???????????????????? ?? 17 ??????????. ???? ?????? ??????
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THE GROWTH OF SELECTED DESMID (DESMIDIALES, CHLOROPHYTA) TAXA AT DIFFERENT CALCIUM AND PH LEVELS

American Journal of Botany, 1977
The growth of clonal isolates of Closterium moniliferum and Cosmarium granatum from hard waters and Triploceras gracile from an acid bog was examined at two different levels of calcium and pH. Low pH and low calcium favored the growth of Triploceras, whereas Closterium grew equally well at both calcium levels but preferred the higher pH.
openaire   +1 more source