Recovery of Au from dilute aqua regia solutions via adsorption on the lyophilized cells of a unicellular red alga Galdieria sulphuraria: A mechanism study

2022 ◽  
Vol 425 ◽  
pp. 127982
Author(s):  
Shin-Ichi Miyashita ◽  
Toshihiko Ogura ◽  
Takahiro Kondo ◽  
Shin-Ichiro Fujii ◽  
Kazumi Inagaki ◽  
...  
Fottea ◽  
2018 ◽  
Vol 18 (1) ◽  
pp. 19-29 ◽  
Author(s):  
Dovile Barcyte ◽  
Linda Nedbalova ◽  
Adam Culka ◽  
Filip Kosek ◽  
Jan Jehlicka

2018 ◽  
Vol 60 (3) ◽  
pp. 702-712 ◽  
Author(s):  
Alessandro W Rossoni ◽  
Gerald Sch�nknecht ◽  
Hyun Jeong Lee ◽  
Ryan L Rupp ◽  
Samantha Flachbart ◽  
...  

Abstract Galdieria sulphuraria is a unicellular red alga that lives in hot, acidic, toxic metal-rich, volcanic environments, where few other organisms survive. Its genome harbors up to 5% of genes that were most likely acquired through horizontal gene transfer. These genes probably contributed to G.sulphuraria’s adaptation to its extreme habitats, resulting in today’s polyextremophilic traits. Here, we applied RNA-sequencing to obtain insights into the acclimation of a thermophilic organism towards temperatures below its growth optimum and to study how horizontally acquired genes contribute to cold acclimation. A decrease in growth temperature from 42�C/46�C to 28�C resulted in an upregulation of ribosome biosynthesis, while excreted proteins, probably components of the cell wall, were downregulated. Photosynthesis was suppressed at cold temperatures, and transcript abundances indicated that C-metabolism switched from gluconeogenesis to glycogen degradation. Folate cycle and S-adenosylmethionine cycle (one-carbon metabolism) were transcriptionally upregulated, probably to drive the biosynthesis of betaine. All these cold-induced changes in gene expression were reversible upon return to optimal growth temperature. Numerous genes acquired by horizontal gene transfer displayed temperature-dependent expression changes, indicating that these genes contributed to adaptive evolution in G.sulphuraria.


Plant Science ◽  
1996 ◽  
Vol 121 (1) ◽  
pp. 19-27 ◽  
Author(s):  
Christine Oesterhelt ◽  
Claus Schnarrenberger ◽  
Wolfgang Gross

1997 ◽  
Vol 46 (1) ◽  
pp. 17-20 ◽  
Author(s):  
Robert Stein ◽  
Claus Schnarrenberger ◽  
Wolfgang Gross

Gene ◽  
1999 ◽  
Vol 230 (1) ◽  
pp. 7-14 ◽  
Author(s):  
Wolfgang Gross ◽  
Dido Lenze ◽  
Ulrich Nowitzki ◽  
Jörg Weiske ◽  
Claus Schnarrenberger

1996 ◽  
Vol 98 (4) ◽  
pp. 753-758 ◽  
Author(s):  
Pavel V. Prosselkov ◽  
Wolfgang Gross ◽  
Abir U. Igamberdiev ◽  
Claus Schnarrenberger

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