Results 171 to 180 of about 4,126 (192)
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Journal of Phycology, 2017
The family Oocystaceae (Chlorophyta) is a group of morphologically and ultrastructurally distinct green algae that constitute a well‐supported clade in the class Trebouxiophyceae. Despite the family's clear delimitation, which is based on specific cell wall features, only a few members of the Oocystaceae have been examined using data other than ...
Lenka Štenclová +2 more
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The family Oocystaceae (Chlorophyta) is a group of morphologically and ultrastructurally distinct green algae that constitute a well‐supported clade in the class Trebouxiophyceae. Despite the family's clear delimitation, which is based on specific cell wall features, only a few members of the Oocystaceae have been examined using data other than ...
Lenka Štenclová +2 more
exaly +3 more sources
Phylogenetic relationship of Chlorella and Parachlorella gen. nov. (Chlorophyta, Trebouxiophyceae)
Phycologia, 2004Abstract Chlorella is one of the archetypical forms of coccoid green algae and one of the best-studied phototrophic eukaryotes. However, its systematics remains enigmatic due to conflicts between morphological and molecular phylogenetic approaches. The sequences of the 18S ribosomal RNA gene of nine strains of Chlorella and related taxa, and the ITS2 ...
Lothar Krienitz +2 more
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Phylogenetic position of Actinastrum hantzschii LAGERHEIM 1882 (Chlorophyta, Trebouxiophyceae)
Algological Studies/Archiv für Hydrobiologie, Supplement Volumes, 2002Actinastrum hantzschii LAGERHEIM is characterized by spindle-shaped cells that are truncated at one end and arranged 3-dimensionally in colonies. An isolate of the alga was characterized by the use of light and electron microscopy as well as 18S rRNA gene sequencing. Despite morphological differences, phylogenetic analyses indicated that A.
Matthias Wolf +2 more
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Isolation and characterization of new Botryococcus braunii (Trebouxiophyceae) isolates
Renewable Energy, 2019Abstract Four isolates of Botryococcus braunii Kutzing were isolated from the Nile River in Egypt. The morphological examinations and results of 5.8S rRNA gene sequences confirmed that EG-Bb01 (JN580448.1), EG-Bb02 (JN580449.1), EG-Bb03 (JN580450.1) and EG-Bb04 (JN580451.1) are B. braunii.
Mohammad I. Abdel-Hamid +2 more
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Oocystis lacustris CHOD. (Chlorophyta, Trebouxiophyceae) in Lake Tanganyika (Africa)
2007P, M., Cocquyt, C., Gärtner, G., Vyverman, W. (2007): Oocystis lacustris CHOD. (Chlorophyta, Trebouxiophyceae) in Lake Tanganyika (Africa).
P, M. +3 more
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Fylogenetická diverzita rodu Phyllosiphon (Trebouxiophyceae, Chlorophyta) v Evropě
2020Abstact The trebouxiophycean genus Phyllosiphon includes unique and little known phototrophic green algae that form endophytic siphonous stages within the members of Araceae. In total, six parasitic species of the genus Phyllosiphon were originally described from the leaves of Araceae, but the only known DNA sequences were acquired from P.
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Alternative Cold Response Modes in Chlorella (Chlorophyta, Trebouxiophyceae) from Antarctica
Phycologia, 2008Chlorella was known to show enhanced antifreeze capability after cold hardening. We isolated Chlorella strains NJ-7 and NJ-18, which display alternative cold response modes from rock surfaces in Antarctica. On the basis of 18S ribosomal (rRNA) sequences, NJ-7 is an Antarctic type of Chlorella vulgaris; NJ-18 is also a 'true' Chlorella species but ...
Hanhua Hu, Huiying Li, Xudong Xu
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Planta, 2007
Non-flagellated vegetative green algae of the Trebouxiophyceae propagate mainly by autosporulation. In this manner, the mother cell wall is shed following division of the protoplast in each round of cell division. Binary fission type Nannochloris and budding type Marvania are also included in the Trebouxiophyceae.
Maki, Yamamoto +3 more
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Non-flagellated vegetative green algae of the Trebouxiophyceae propagate mainly by autosporulation. In this manner, the mother cell wall is shed following division of the protoplast in each round of cell division. Binary fission type Nannochloris and budding type Marvania are also included in the Trebouxiophyceae.
Maki, Yamamoto +3 more
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CILIATE‐SYMBIONT SPECIFICITY OF FRESHWATER ENDOSYMBIOTICCHLORELLA(TREBOUXIOPHYCEAE, CHLOROPHYTA)1
Journal of Phycology, 2008The nature ofChlorellasymbioses in invertebrates and protists has attracted much interest, but the uncertain taxonomy of the algal partner has constrained a deeper ecological understanding of this symbiosis. We sequenced parts of the nuclear 18S rDNA, the internal transcribed spacer (ITS)‐1 region, and the chloroplast 16S rDNA of ...
Monika, Summerer +2 more
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Polyphyletic origin of the Dictyosphaerium-morphotype within Chlorellaceae (Trebouxiophyceae).
2010The green algal Dictyosphaerium morphotype is characterized by spherical or oval cells connected by gelatinized strands to microscopic colonies, which are covered by prominent mucilaginous envelopes. Combined SSU and ITS rRNA gene sequence analyses revealed that this morphotype evolved independently both in the Chlorella and Parachlorella clades of the
Krienitz, Lothar +3 more
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