Phylogenetic analysis of the ‘Nannochloris-like’ algae and diagnoses of Picochlorum oklahomensis gen. et sp. nov. (Trebouxiophyceae, Chlorophyta)

Henley, William J.; Hironaka, Janice Lynn; Guillou, Laure; Buchheim, Mark A.; Buchheim, Julie A.; Fawley, Marvin W.; Fawley, Karen P.

doi:10.2216/i0031-8884-43-6-641.1

Cited by 150 publications

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“…Instead of the well-known picoeukaryote inhabitants of saline lakes and ponds, such as the members of the genera Picochlorum and Picocystis (Lewin et al 2000;Henley et al 2004;Fanjing et al 2009;Wu et al 2009;Krienitz et al 2012), Chloroparva pannonica has been found to be the only characteristic species of these alkaline pans until now. On the other hand, the present study has found a genetically diverse community with a relatively high number of previously unidentified green algal taxa.…”

Section: Discussionmentioning

confidence: 99%

“…were accepted as genus level divergence among isolates in taxonomic revisions or recent species descriptions (Henley et al 2004, Krienitz et al 2004, Somogyi et al 2011.…”

Section: Community Compositionmentioning

confidence: 99%

“…The third group of Zab-szék clones, was affiliated with the recently described Chloroparva and the revised Pseudochloris genera (Somogyi et al 2011(Somogyi et al , 2013 with relatively low pairwise similarity values, 97.3-97.9%, and therefore represented additional potential new species or genera. Type strain of Chloroparva pannonica was isolated from a soda pan in the same region close to Zab-szék (Somogyi et al 2011), an additional isolate from this genus was retrieved from Zab-szék itself (ACT 0602) and Pseudochloris isolates also originated from saline (marine) habitats (Henley et al 2004;Somogyi et al 2013). …”

Section: Community Compositionmentioning

confidence: 99%

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Unique picoeukaryotic algal community under multiple environmental stress conditions in a shallow, alkaline pan

et al. 2013

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Winter phytoplankton communities in the shallow alkaline pans of Hungary are frequently dominated by picoeukaryotes, sometimes in particularly high abundance. In winter 2012 the ice-covered alkaline Zab-szék pan was found to be extraordinarily rich in picoeukaryotic green algae (42-82 × 10 6 cells ml -1 ) despite the simultaneous presence of multiple stressors (low temperature and light intensity with high pH and salinity). The maximum photosynthetic rate of the picoeukaryote community was 1.4 µg C µg chlorophyll a -1 h -1 at 125 µmol m -2 s -1 .The assimilation rates compared with the available light intensity measured on the field show that the community was considerably light-limited. Estimated areal primary production was 2 180 mg C m -2 d -1 . On the basis of the 18S rRNA gene analysis (cloning and DGGE), the community was phylogenetically heterogeneous with several previously undescribed chlorophyte lineages, which indicates the ability of picoeukaryotic communities to maintain high genetic diversity under extreme conditions.

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Section: Discussionmentioning

confidence: 99%

“…were accepted as genus level divergence among isolates in taxonomic revisions or recent species descriptions (Henley et al 2004, Krienitz et al 2004, Somogyi et al 2011.…”

Section: Community Compositionmentioning

confidence: 99%

Section: Community Compositionmentioning

confidence: 99%

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Unique picoeukaryotic algal community under multiple environmental stress conditions in a shallow, alkaline pan

et al. 2013

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“…Eustigmatophyceae Nannochloropsis granulata Zapata et al (2001) (Chrysochromulina), Guillou et al (1999b), and F. Rodriguez (personal communication) (Bolidophyceae), Latasa et al (2004) (Prasinophyceae), Kawachi et al (2002a, b) (Pinguiophyceae), Henley et al (2004) (Trebouxiophyceae), and Karlson et al (1996) (Eustigmatophyceae). …”

Section: Photoautotrophsunclassified

Ecology and Diversity of Picoeukaryotes

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Microbial Ecology of the Oceans

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“…considered as marine native, the microalgae Picochlorum spp. were previously detected in inland saline pans (Henley et al, 2004), hypersaline lake in tibet (Wu et al, 2009), and African soda lakes (Krienitz et al, 2012). by using pyrosequencing approach, lauro et al (2011) obtained Mantoniella sp.-related 18s rrnA gene sequences at high abundance in the mixolimnetic communities of Antarctic stratified Ace lake.…”

Section: Eukaryotic and Prokaryotic Diversity In Saline Transylvanianmentioning

confidence: 80%

Limnology and plankton diversity of salt lakes from Transylvanian Basin (Romania): A review

et al. 2017

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Geography, babeş-bolyai university, 5-7 clinicilor str., 400006 cluj-napoca, romania; 2 national institute of research and development for biological sciences (nirdbs), institute of biological research, 48 republicii str., 400015 cluj-napoca, romania; 3 department of Aquatic Microbial ecology, institute of Hydrobiology, biology center of the Academy of sciences of the czech republic, na sádkách 7, 370 05 České budějovice, czech republic; 4 department of Molecular biology and biotechnology, Faculty of biology and Geology, babeş-bolyai university, 5-7 clinicilor str., 400006 cluj-napoca, romania; 5 5department of taxonomy and ecology, Faculty of biology and Geology, babeş-bolyai university, 5-7 clinicilor str., 400006 cluj-napoca, romania; 6 electron Microscopy center, babeș-bolyai university, 5-7 clinicilor street, clujnapoca, romania; 7 center for systems biology, biodiversity, and bioresources, babes-bolyai university, 5-7 clinicilor str., 400006 cluj-napoca, romania *corresponding author: gheorghe.serban@ubbcluj.ro ABSTRACTin the present work, we review the current knowledge on genesis, limnology and biodiversity of salt lakes distributed around the inner contour of eastern carpathian arc (transylvanian basin, central romania). transylvanian salt lakes formed on ancient halite (nacl) deposits following natural processes or quarrying activities. Most of these lakes are located in eastern (sovata area), southern (ocna sibiului), and western (turda-cojocna) parts of the transylvanian basin, have small surfaces (0.1-4 ha), variable depths (2-100 m), are hypersaline (>10%, w/v, total salts, mainly nacl) and permanently stratified. As consequence of steady salinity/density gradient, heat entrapment below surface layer (i.e., heliothermy) develops in several transylvanian lakes. the physical and chemical water stratification is mirrored in the partition of plankton diversity. lakes with less saline (2-10% salinity) water layers appear to harbor halotolerant representatives of phyto-(e.g., marine native Picochlorum spp. and Synechococcus spp.), zoo-(e.g., Moina salina), and bacterioplankton (e.g., Actinobacteria, Verrucomicobia), whereas halophilic plankton communities (e.g., green algae Dunaliella sp., brine shrimp Artemia sp., and members of Halobacteria class) dominate in the oxic surface of hypersaline (>10% salinity) lakes. Molecular approaches (e.g., Pcr-dGGe, 16s rrnA gene-based clone libraries, and dnA metabarcoding) showed that the o 2 -depleted bottom brines of deep meromictic transylvanian lakes are inhabited by known extremely halophilic anaerobes (e.g. sulfate-reducing delta-Proteobacteria, fermenting clostridia, methanogenic and polymer-degrading archaea) in addition to representatives of uncultured/unclassified prokaryotic lineages. overall, the plankton communities thriving in saline transylvanian lakes seem to drive full biogeochemical cycling of main elements. However, the trophic interactions (i.e., food web structure and energy flow) as well as impact of human activities and predicted climate chang...

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Phylogenetic analysis of the ‘Nannochloris-like’ algae and diagnoses of Picochlorum oklahomensis gen. et sp. nov. (Trebouxiophyceae, Chlorophyta)

Cited by 150 publications

References 0 publications

Unique picoeukaryotic algal community under multiple environmental stress conditions in a shallow, alkaline pan

Unique picoeukaryotic algal community under multiple environmental stress conditions in a shallow, alkaline pan

Ecology and Diversity of Picoeukaryotes

Limnology and plankton diversity of salt lakes from Transylvanian Basin (Romania): A review

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