Interplay between carotenoids, hemoproteins and the “life band” origin studied in live Rhodotorula mucilaginosa cells by means of Raman microimaging

The Analyst ◽  
2015 ◽  
Vol 140 (6) ◽  
pp. 1809-1813 ◽  
Author(s):  
Marta Z. Pacia ◽  
Katarzyna Turnau ◽  
Malgorzata Baranska ◽  
Agnieszka Kaczor
Keyword(s):  
Rhodotorula Mucilaginosa ◽  
Band Origin ◽  
Unknown Species

Raman microimaging of live Rhodotorula mucilaginosa cells enabled the interrelation of carotenoids, hemoproteins and the unknown species related to the “Raman signature of life”.

scholarly journals Integrative Taxonomy and Molecular Phylogeny of the Plant-Parasitic Nematode Genus Paratylenchus (Nematoda: Paratylenchinae): Linking Species with Molecular Barcodes

Plants ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 408
Author(s):  
Phougeishangbam Rolish Singh ◽  
Gerrit Karssen ◽  
Marjolein Couvreur ◽  
Sergei A. Subbotin ◽  
Wim Bert
Keyword(s):  
18S Rrna ◽  
Parasitic Nematode ◽  
Integrative Taxonomy ◽  
Coi Gene ◽  
Integrated Analysis ◽  
Gene Sequences ◽  
Unknown Species ◽  
New Gene ◽  
First Time ◽  
Plant Parasitic

Pin nematodes of the genus Paratylenchus are obligate ectoparasites of a wide variety of plants that are distributed worldwide. In this study, individual morphologically vouchered nematode specimens of fourteen Paratylenchus species, including P. aculentus, P. elachistus, P. goodeyi, P. holdemani, P. idalimus, P. microdorus, P. nanus, P. neoamblycephalus, P. straeleni and P. veruculatus, are unequivocally linked to the D2-D3 of 28S, ITS, 18S rRNA and COI gene sequences. Combined with scanning electron microscopy and a molecular analysis of an additional nine known and thirteen unknown species originating from diverse geographic regions, a total of 92 D2-D3 of 28S, 41 ITS, 57 18S rRNA and 111 COI new gene sequences are presented. Paratylenchus elachistus, P. holdemani and P. neoamblycephalus are recorded for the first time in Belgium and P. idalimus for the first time in Europe. Paratylenchus is an excellent example of an incredibly diverse yet morphologically minimalistic plant-parasitic genus, and this study provides an integrated analysis of all available data, including coalescence-based molecular species delimitation, resulting in an updated Paratylenchus phylogeny and the corrective reassignment of 18 D2-D3 of 28S, 3 ITS, 3 18S rRNA and 25 COI gene sequences that were previously unidentified or incorrectly classified.

scholarly journals Animal welfare risks of global aquaculture

2021 ◽  
Vol 7 (14) ◽  
pp. eabg0677
Author(s):  
Becca Franks ◽  
Christopher Ewell ◽  
Jennifer Jacquet
Keyword(s):  
Animal Welfare ◽  
Taxonomic Diversity ◽  
Aquatic Animal ◽  
Multiple Sources ◽  
Aquatic Animals ◽  
Extreme Risk ◽  
Unknown Species ◽  
High Production ◽  
Species Specific ◽  
Number Of Individuals

The unprecedented growth of aquaculture involves well-documented environmental and public-health costs, but less is understood about global animal welfare risks. Integrating data from multiple sources, we estimated the taxonomic diversity of farmed aquatic animals, the number of individuals killed annually, and the species-specific welfare knowledge (absence of which indicates extreme risk). In 2018, FAO reported 82.12 million metric tons of farmed aquatic animals from six phyla and at least 408 species—20 times the number of species of farmed terrestrial animals. The farmed aquatic animal tonnage represents 250 to 408 billion individuals, of which 59 to 129 billion are vertebrates (e.g., carps, salmonids). Specialized welfare information was available for 84 species, only 30% of individuals; the remaining 70% either had no welfare publications or were of an unknown species. With aquaculture growth outpacing welfare knowledge, immediate efforts are needed to safeguard the welfare of high-production, understudied species and to create policies that minimize welfare risks.

scholarly journals Multilocus phylogenies reveal three new truffle-like taxa and the traces of interspecific hybridization in Octaviania (Boletaceae, Boletales)

IMA Fungus ◽  
2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Takamichi Orihara ◽  
Rosanne Healy ◽  
Adriana Corrales ◽  
Matthew E. Smith
Keyword(s):  
Rna Polymerase Ii ◽  
Phylogenetic Analyses ◽  
Large Subunit ◽  
Gene Tree ◽  
Phylogenetic Network ◽  
Elongation Factor ◽  
Morphological Observation ◽  
Tree Comparison ◽  
Unknown Species ◽  
The Usa

ABSTRACTAmong many convergently evolved sequestrate fungal genera in Boletaceae (Boletales, Basidiomycota), the genus Octaviania is the most diverse. We recently collected many specimens of Octaviania subg. Octaviania, including several undescribed taxa, from Japan and the Americas. Here we describe two new species in subgenus Octaviania, O. tenuipes and O. tomentosa, from temperate to subtropical evergreen Fagaceae forests in Japan based on morphological observation and robust multilocus phylogenetic analyses (nrDNA ITS and partial large subunit [LSU], translation elongation factor 1-α gene [TEF1] and the largest subunit of RNA polymerase II gene [RPB1]). Based on specimens from the Americas as well as studies of the holotype, we also taxonomically re-evaluate O. asterosperma var. potteri. Our analysis suggests that O. asterosperma var. potteri is a distinct taxon within the subgenus Octaviania so we recognize this as O. potteri stat. nov. We unexpectedly collected O. potteri specimens from geographically widespread sites in the USA, Japan and Colombia. This is the first verified report of Octaviania from the South American continent. Our molecular analyses also revealed that the RPB1 sequence of one O. tenuipes specimen was identical to that of a closely related species, O. japonimontana, and that one O. potteri specimen from Minnesota had an RPB1 sequence of an unknown species of O. subg. Octaviania. Additionally, one O. japonimontana specimen had an unusually divergent TEF1 sequence. Gene-tree comparison and phylogenetic network analysis of the multilocus dataset suggest that these heterogenous sequences are most likely the result of previous inter- and intra-specific hybridization. We hypothesize that frequent hybridization events in Octaviania may have promoted the high genetic and species diversity found within the genus.

scholarly journals Inulinase from Rhodotorula mucilaginosa: immobilization and application in the production of fructooligosaccharides

2021 ◽  
Author(s):  
Geise Camila de Araujo Ribeiro ◽  
Pedro Fernandes ◽  
Dayse Alessandra Almeida Silva ◽  
Hugo Neves Brandão ◽  
Sandra Aparecida de Assis
Keyword(s):  
Rhodotorula Mucilaginosa

Antarctic Strain of Rhodotorula mucilaginosa UFMGCB 18,377 Attenuates Mucositis Induced by 5-Fluorouracil in Mice

2021 ◽  
Author(s):  
Joana O. P. A. Coutinho ◽  
Mônica F. Quintanilha ◽  
Marina R. A. Campos ◽  
Enio Ferreira ◽  
Graciéle C. A. de Menezes ◽  
...  
Keyword(s):  
Rhodotorula Mucilaginosa

scholarly journals Evaluation of olive mill waste as substrate for carotenoid production by Rhodotorula mucilaginosa

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Carolina Ghilardi ◽  
Paola Sanmartin Negrete ◽  
Amalia Antonia Carelli ◽  
Virginia Borroni
Keyword(s):  
Liquid Fraction ◽  
Added Value ◽  
Organic Load ◽  
Integral Approach ◽  
Rhodotorula Mucilaginosa ◽  
Total Sugars ◽  
Carotenoid Production ◽  
Total Sugar Concentration ◽  
Valuable Compounds ◽  
Olive Mill

Abstract The “alperujo” is a waste from the olive oil industry with great potential for valorization. It has a high organic load, with the presence of valuable compounds such as biophenols and sugars. The use of this waste can be thought of as a biorefinery from which different compounds of high added value can be obtained, whether they are present in the “alperujo” such as biophenols or can be generated from the “alperujo”. Therefore, the production of carotenoids by Rhodotorula mucilaginosa was evaluated using the liquid fraction of ‘alperujo’ (Alperujo Water, AW) or an aqueous extract (AE) of “alperujo” at different concentrations (5, 10, 20 and 30% w/V) as substrates. The AEs had an acidic pH, a total sugar concentration ranging from 1.6 to 7.6 g/L, a polyphenols content from 0.4 to 2.9 g/L and a significant amount of proteins (0.5–3 g/L). AW is similar in composition as 30% AE, but with a higher amount of total sugars. Rh. mucilaginosa was able to grow at the different mediums with consumption of glucose and fructose, a reduction in protein content and alkalinization of the medium. Maximum total carotenoid production (7.3 ± 0.6 mg/L) was achieved at AW, while the specific production was higher when the yeast grew at AW or at 30% AE (0.78 ± 0.06 and 0.73 ± 0.10 mg/g of biomass, respectively). Torulene and torularhodin were the main carotenoids produced. Polyphenol content did not change; thus, it is still possible to recover these compounds after producing carotenoids. These results demonstrate the feasibility of using alperujo-based mediums as cheap substrates to produce torularhodin and torulene and to include this bioprocess as a step in an integral approach for alperujo valorization.

Overproduction of single cell oil from xylose rich sugarcane bagasse hydrolysate by an engineered oleaginous yeast Rhodotorula mucilaginosa IIPL32

Fuel ◽  
2019 ◽  
Vol 254 ◽  
pp. 115653 ◽  
Author(s):  
Sheetal Bandhu ◽  
Neha Bansal ◽  
Diptarka Dasgupta ◽  
Vivek Junghare ◽  
Arushdeep Sidana ◽  
...  
Keyword(s):  
Single Cell ◽  
Sugarcane Bagasse ◽  
Oleaginous Yeast ◽  
Rhodotorula Mucilaginosa ◽  
Single Cell Oil ◽  
Sugarcane Bagasse Hydrolysate

Responses of Rhodotorula mucilaginosa under Pb( II ) stress: carotenoid production and budding

2021 ◽  
Author(s):  
Zhijun Wang ◽  
Ying Zhang ◽  
Liu Jiang ◽  
Jingjing Qiu ◽  
Yanan Gao ◽  
...  
Keyword(s):  
Rhodotorula Mucilaginosa ◽  
Carotenoid Production
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