Chloromonas svalbardensis n. sp. with Insights into the Phylogroup Chloromonadinia (Chlorophyceae)

The Journal of Eukaryotic Microbiology
Dovilė BarcytėJosef Elster

Abstract

The traditional green algal genus Chloromonas accommodates mesophilic, cold-tolerant and cold-adapted microorganisms. In this paper, we studied a new strain isolated from a wet hummock meadow in the High Arctic. We used morphological, ultrastructural and molecular data to assess the taxonomic position and phylogenetic relationships of the new isolate. The observed morphological features generally corresponded to the cold-tolerant Chloromonas characteristics. However, ellipsoidal or wide ellipsoidal vegetative cells, a massive parietal cup-shaped chloroplast with a number of continuously connected lobes, a thick cell wall, a prominent hemispherical papilla and the anterior position of an oblong or round eyespot distinguished the alga from all previously described Chloromonas species. Analyses of rbcL and 18S rRNA genes showed that the new strain formed an independent lineage within a clade containing mesophilic and psychrotolerant Chloromonas species. Comparisons of secondary structure models of a highly variable ITS2 rDNA marker supported a separate species identity of the new isolate. Considering the morphological and molecular differences from its relatives, a new psychrotolerant species, Chloromonas svalbardensis, is propose...Continue Reading

References

Sep 1, 1997·Nucleic Acids Research·S F AltschulD J Lipman
Nov 15, 2006·BMC Bioinformatics·Philipp N SeibelMatthias Wolf
Oct 16, 2007·Nucleic Acids Research·Christian SeligJörg Schultz
Mar 29, 2008·Briefings in Bioinformatics·Kazutaka Katoh, Hiroyuki Toh
Apr 10, 2008·Molecular Biology and Evolution·David Posada
Apr 24, 2008·Molecular Phylogenetics and Evolution·Takashi NakadaHisayoshi Nozaki
Oct 15, 2008·Systematic Biology·Alexandros StamatakisJacques Rougemont
Nov 26, 2008·Gene·Alexander KellerMatthias Wolf
Apr 29, 2009·Bioinformatics·Kévin DartyYann Ponty
Nov 19, 2009·Nucleic Acids Research·Christian KoetschanJörg Schultz
Mar 17, 2010·BMC Bioinformatics·Jessica S Reuter, David H Mathews
Feb 24, 2012·Systematic Biology·Fredrik RonquistJohn P Huelsenbeck
Mar 1, 2012·Molecular Phylogenetics and Evolution·Christian KoetschanJörg Schultz
May 26, 2012·International Journal of Cardiology·Alexandra RowellGemma A Figtree
Oct 18, 2013·Molecular Biology and Evolution·Koichiro TamuraSudhir Kumar
Feb 21, 2018·International Journal of Systematic and Evolutionary Microbiology·Dovilė BarcytėJosef Elster

❮ Previous
Next ❯

Citations


❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.