A review on the taxonomic position of the algal genus Cyanidium Geitler 1933 and its ecological cohorts Galdieria Merola in Merola et al. 1981 and Cyanidioschyzon De Luca, Taddei and Varano 1978

1994 ◽  
pp. 113-132 ◽  
Author(s):  
Franklyn D. Ott ◽  
Joseph Seckbach
Keyword(s):  
Taxonomic Position ◽  
Algal Genus

The taxonomic position ofCeraria Pears. & Steph.,Portulacaria Jacq, andSilvaea Phil

1986 ◽  
Vol 97 (11-12) ◽  
pp. 775-777
Author(s):  
B. Louis Nyananyo ◽  
J. Dele Olowokudejo
Keyword(s):  
Taxonomic Position

The first record of Jaapia ochroleuca (Basidiomycota) in the European part of Russia

2013 ◽  
Vol 47 ◽  
pp. 68-73
Author(s):  
S. V. Volobuev
Keyword(s):  
Nature Reserve ◽  
First Record ◽  
European Part ◽  
European Russia ◽  
Taxonomic Position ◽  
Morphological Description ◽  
Microscopic Structure ◽  
European Part Of Russia ◽  
Distribution And Ecology ◽  
First Time

The corticioid basidiomycete Jaapia ochroleuca (Bres.) Nannf. et J. Erikss. is recorded for the first time in the European Russia from the «Bryansky Les» Nature Reserve (Bryansk Region). The taxonomic position of the species is defined briefly. Its morphological description and data on distribution and ecology are provided. The details of microscopic structure of the collected specimen are illustrated.

scholarly journals The Rubisco small subunits in the green algal genus Chloromonas provide insights into evolutionary loss of the eukaryotic carbon-concentrating organelle, the pyrenoid

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Ryo Matsuzaki ◽  
Shigekatsu Suzuki ◽  
Haruyo Yamaguchi ◽  
Masanobu Kawachi ◽  
Yu Kanesaki ◽  
...  
Keyword(s):  
Evolutionary Biology ◽  
De Novo ◽  
Small Subunit ◽  
Plant Evolution ◽  
Reaction Products ◽  
Photosynthetic Organisms ◽  
Green Algal ◽  
Interesting Study ◽  
Algal Genus ◽  
The Relationship

Abstract Background Pyrenoids are protein microcompartments composed mainly of Rubisco that are localized in the chloroplasts of many photosynthetic organisms. Pyrenoids contribute to the CO2-concentrating mechanism. This organelle has been lost many times during algal/plant evolution, including with the origin of land plants. The molecular basis of the evolutionary loss of pyrenoids is a major topic in evolutionary biology. Recently, it was hypothesized that pyrenoid formation is controlled by the hydrophobicity of the two helices on the surface of the Rubisco small subunit (RBCS), but the relationship between hydrophobicity and pyrenoid loss during the evolution of closely related algal/plant lineages has not been examined. Here, we focused on, the Reticulata group of the unicellular green algal genus Chloromonas, within which pyrenoids are present in some species, although they are absent in the closely related species. Results Based on de novo transcriptome analysis and Sanger sequencing of cloned reverse transcription-polymerase chain reaction products, rbcS sequences were determined from 11 strains of two pyrenoid-lacking and three pyrenoid-containing species of the Reticulata group. We found that the hydrophobicity of the RBCS helices was roughly correlated with the presence or absence of pyrenoids within the Reticulata group and that a decrease in the hydrophobicity of the RBCS helices may have primarily caused pyrenoid loss during the evolution of this group. Conclusions Although we suggest that the observed correlation may only exist for the Reticulata group, this is still an interesting study that provides novel insight into a potential mechanism determining initial evolutionary steps of gain and loss of the pyrenoid.

Movement of nutrients in fungi. I. The Mycelium

1968 ◽  
Vol 16 (1) ◽  
pp. 71 ◽  
Author(s):  
LB Thrower ◽  
SL Thrower
Keyword(s):  
Nutrient Medium ◽  
Natural Habitat ◽  
Taxonomic Position ◽  
Deficient Medium ◽  
The Difference ◽  
Hyphal Apex

Thirty-one species of fungi (representing 13 orders) were examined for their ability to grow from a nutrient medium onto a non-nutrient medium; 17 were capable of colonizing the deficient medium, 10 were not, and 4 were indeterminate. The ability to grow onto deficient medium appeared to be related to the natural habitat of the fungus rather than to taxonomic position. Experiments with isotopically labelled nutrients showed that both colonizing fungi and non-colonizing fungi were capable of some transport of nutrients, the difference between the two groups being one of degree. In transporting fungi, labelled nutrients were moved more rapidly when the fungus colonized a deficient medium than when it colonized a nutrient medium; this suggested that movement of nutrients is adaptive to some extent. The importance of the growing hyphal apex as a sink for nutrients was demonstrated.

Tonnacypris glacialis (Ostracoda, Cyprididae): taxonomic position, (palaeo-) ecology, and zoogeography

1998 ◽  
Vol 25 (3) ◽  
pp. 515-526 ◽  
Author(s):  
Huw I. Griffiths ◽  
Erika Pietrzeniuk ◽  
Roland Fuhrmann ◽  
Jack J. Lennon ◽  
Koen Martens ◽  
...  
Keyword(s):  
Taxonomic Position

Phylogenetic relationships between the genera Aphidius and Lysaphidus (Hymenoptera: Braconidae: Aphidiinae) with description of Aphidius iranicus sp. nov.

2007 ◽  
Vol 139 (3) ◽  
pp. 297-307 ◽  
Author(s):  
Željko Tomanović ◽  
Ehsan Rakhshani ◽  
Petr Starý ◽  
Nickolas G. Kavallieratos ◽  
Ljubiša Ž. Stanisavljević ◽  
...  
Keyword(s):  
Phylogenetic Relationships ◽  
Morphological Characters ◽  
Taxonomic Position ◽  
Parsimony Analysis ◽  
Parasitoid Species ◽  
Consensus Tree ◽  
Artemisia Absinthium ◽  
Diagnostic Characters ◽  
Line Drawings ◽  
Generic Status

AbstractWe analyzed the phylogenetic relationships between eight Aphidius Nees and six Lysaphidus Smith species on the basis of 12 morphological characters by parsimony analysis. The consensus tree does not support the generic status of Lysaphidus. Aphidius iranicus, sp. nov., associated with Titanosiphon bellicosum Nevsky on Artemisia absinthium L. from Iran, is described. The new parasitoid species is described and illustrated by line drawings, and its diagnostic characters are discussed. The taxonomic position of the subgenus Tremblayia Tizado and Núñez-Pérez is also considered. Tremblayia and Lysaphidus are newly classified as synonyms of Aphidius. The following new or revised combinations are proposed: Aphidius adelocarinus Smith, comb. rev., A. ramythirus Smith, comb. rev., A. rosaphidis Smith, comb. rev., A. viaticus (Sedlag), comb. nov., A. arvensis (Starý), comb. nov., and A. erysimi (Starý), comb. nov.

scholarly journals Taxonomic position of Chinese voles of the tribe Arvicolini and the description of 2 new species from Xizang, China

2016 ◽  
pp. gyw170 ◽  
Author(s):  
Shaoying Liu ◽  
Wei Jin ◽  
Yang Liu ◽  
Robert W. Murphy ◽  
Bin Lv ◽  
...  
Keyword(s):  
New Species ◽  
Taxonomic Position
Sign in / Sign up

Export Citation Format

Share Document