scholarly journals Phospho-regulation and nucleocytoplasmic trafficking of CrzA in response to calcium and alkaline-pH stress inAspergillus nidulans

2013 ◽  
Vol 89 (3) ◽  
pp. 532-551 ◽  
Author(s):  
Patricia Hernández-Ortiz ◽  
Eduardo A. Espeso
Keyword(s):  
Alkaline Ph ◽  
Nucleocytoplasmic Trafficking ◽  
Ph Stress ◽  
Alkaline Ph Stress

scholarly journals Signaling Alkaline pH Stress in the YeastSaccharomyces cerevisiaethrough the Wsc1 Cell Surface Sensor and the Slt2 MAPK Pathway

2006 ◽  
Vol 281 (52) ◽  
pp. 39785-39795 ◽  
Author(s):  
Raquel Serrano ◽  
Humberto Martín ◽  
Antonio Casamayor ◽  
Joaquín Ariño
Keyword(s):  
Cell Surface ◽  
Mapk Pathway ◽  
Alkaline Ph ◽  
Ph Stress ◽  
Alkaline Ph Stress

The role of the Snf1 kinase in the adaptive response of Saccharomyces cerevisiae to alkaline pH stress

2012 ◽  
Vol 444 (1) ◽  
pp. 39-49 ◽  
Author(s):  
Antonio Casamayor ◽  
Raquel Serrano ◽  
María Platara ◽  
Carlos Casado ◽  
Amparo Ruiz ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Glucose Sensing ◽  
Limiting Factors ◽  
Alkaline Ph ◽  
Short Term ◽  
Triple Mutant ◽  
Snf1 Kinase ◽  
High Ph ◽  
Ph Stress ◽  
Alkaline Ph Stress

Alkaline pH stress invokes a potent and fast transcriptional response in Saccharomyces cerevisiae that includes many genes repressed by glucose. Certain mutants in the glucose-sensing and -response pathways, such as those lacking the Snf1 kinase, are sensitive to alkalinization. In the present study we show that the addition of glucose to the medium improves the growth of wild-type cells at high pH, fully abolishes the snf1 alkali-sensitive phenotype and attenuates high pH-induced Snf1 phosphorylation at Thr210. Lack of Elm1, one of the three upstream Snf1 kinases (Tos3, Elm1 and Sak1), markedly increases alkali sensitivity, whereas the phenotype of the triple mutant tos3 elm1 sak1 is even more pronounced than that of snf1 cells and is poorly rescued by glucose supplementation. DNA microarray analysis reveals that about 75% of the genes induced in the short term by high pH are also induced by glucose scarcity. Snf1 mediates, in full or in part, the activation of a significant subset (38%) of short-term alkali-induced genes, including those encoding high-affinity hexose transporters and phosphorylating enzymes. The induction of genes encoding enzymes involved in glycogen, but not trehalose, metabolism is largely dependent of the presence of Snf1. Therefore the function of Snf1 in adaptation to glucose scarcity appears crucial for alkaline pH tolerance. Incorporation of micromolar amounts of iron and copper to a glucose-supplemented medium resulted in an additive effect and allows near-normal growth at high pH, thus indicating that these three nutrients are key limiting factors for growth in an alkaline environment.

scholarly journals Coordinate responses to alkaline pH stress in budding yeast

2015 ◽  
Vol 2 (6) ◽  
pp. 182-196 ◽  
Author(s):  
Albert Serra-Cardona ◽  
David Canadell ◽  
Joaquin Arino
Keyword(s):  
Budding Yeast ◽  
Alkaline Ph ◽  
Ph Stress ◽  
Alkaline Ph Stress

EFFECTS OF pH STRESS ON CORTISOL AND NON-SPECIFIC IMMUNITY OF CARASSIUS AURATUS GIBELIO

2011 ◽  
Vol 35 (2) ◽  
pp. 256-261
Author(s):  
Wen-Xiang LI ◽  
Jun XIE ◽  
Rui SONG ◽  
Hong ZOU ◽  
Shan-Gong WU ◽  
...  
Keyword(s):  
Carassius Auratus ◽  
Carassius Auratus Gibelio ◽  
Specific Immunity ◽  
Ph Stress ◽  
Effects Of Ph

Effects of pH stress on antioxidant system enzyme activities and gene expression of Fenneropenaeus chinensis

2013 ◽  
Vol 18 (3) ◽  
pp. 556-564 ◽  
Author(s):  
Yun WANG ◽  
Jian LI ◽  
Jitao LI ◽  
Yuying HE ◽  
Zhiqiang CHANG ◽  
...  
Keyword(s):  
Gene Expression ◽  
Antioxidant System ◽  
Enzyme Activities ◽  
Fenneropenaeus Chinensis ◽  
Ph Stress ◽  
Effects Of Ph

Behaviour of Coli Phages in Oxidation Ponds

1985 ◽  
Vol 17 (10) ◽  
pp. 219-227 ◽  
Author(s):  
T. Omura ◽  
H. K. Shin ◽  
A. Ketratanakul
Keyword(s):  
Laboratory Experiments ◽  
Field Investigation ◽  
Host Cells ◽  
Coliform Bacteria ◽  
Alkaline Ph ◽  
Viral Inactivation ◽  
Effects Of Temperature ◽  
Oxidation Ponds ◽  
Incubation Temperatures ◽  
Inactivation Efficiency

Coliphages are among the most promising indicators of viral inactivation efficiency of wastewater treatment. Therefore, it is important to investigate the behaviour of coliphages in oxidation ponds from the viewpoint of predicting the inactivation of infectious viruses. In this study, numbers of coliphages were measured in oxidation ponds consisting of a series of facultative and maturation ponds. In parallel with this investigation, the effects of temperature and pH on the behaviour of coliphages were examined in the laboratory, employing three species of coliform bacteria as host cells. The field investigation showed that there was positive correlation between counts of coliphages and those of coliform bacteria, and that more than 99% of coliphages were inactivated. The inactivation efficiency of coliphages in the facultative pond was much higher than in the maturation pond. The results of the laboratory experiments indicated that at 30°C more than 99% of the coliform group were destroyed in 7 days of incubation and that coliphages counts increased from 105/100 ml to 107/100 ml with a lag time of 3 days. Greater reduction of the coliform count was obtained at higher incubation temperatures. It was observed that the coliphages possessed greater ability to attack coliform bacteria at acidic rather than alkaline pH.

Comparative Two-Dimensional Gel Electrophoresis of Trypanosoma cruzi Mammalian-Stage Forms in an Alkaline pH Range

2015 ◽  
Vol 22 (12) ◽  
pp. 1066-1075 ◽  
Author(s):  
Adriana Magalhães ◽  
Rayner Queiroz ◽  
Izabela Bastos ◽  
Jaime Santana ◽  
Marcelo Sousa ◽  
...  
Keyword(s):  
Trypanosoma Cruzi ◽  
Gel Electrophoresis ◽  
Two Dimensional ◽  
Alkaline Ph ◽  
Two Dimensional Gel Electrophoresis ◽  
Ph Range
Sign in / Sign up

Export Citation Format

Share Document