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Galello F, Bermúdez-Moretti M, Martínez MCO, Rossi S, Portela P. The cAMP-PKA signalling crosstalks with CWI and HOG-MAPK pathways in yeast cell response to osmotic and thermal stress. Microb Cell 2024; 11:90-105. [PMID: 38495453 PMCID: PMC10941952 DOI: 10.15698/mic2024.03.818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 02/13/2024] [Accepted: 02/22/2024] [Indexed: 03/19/2024]
Abstract
The yeast Saccharomyces cerevisiae is widely used in food and non-food industries. During industrial fermentation yeast strains are exposed to fluctuations in oxygen concentration, osmotic pressure, pH, ethanol concentration, nutrient availability and temperature. Fermentation performance depends on the ability of the yeast strains to adapt to these changes. Suboptimal conditions trigger responses to the external stimuli to allow homeostasis to be maintained. Stress-specific signalling pathways are activated to coordinate changes in transcription, translation, protein function, and metabolic fluxes while a transient arrest of growth and cell cycle progression occur. cAMP-PKA, HOG-MAPK and CWI signalling pathways are turned on during stress response. Comprehension of the mechanisms involved in the responses and in the adaptation to these stresses during fermentation is key to improving this industrial process. The scope of this review is to outline the advancement of knowledge about the cAMP-PKA signalling and the crosstalk of this pathway with the CWI and HOG-MAPK cascades in response to the environmental challenges heat and hyperosmotic stress.
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Affiliation(s)
- Fiorella Galello
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales-Consejo Nacional de Investigaciones Científicas y Técnicas (IQUIBICEN-CONICET). Buenos Aires, Argentina
| | - Mariana Bermúdez-Moretti
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales-Consejo Nacional de Investigaciones Científicas y Técnicas (IQUIBICEN-CONICET). Buenos Aires, Argentina
| | - María Clara Ortolá Martínez
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales-Consejo Nacional de Investigaciones Científicas y Técnicas (IQUIBICEN-CONICET). Buenos Aires, Argentina
| | - Silvia Rossi
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales-Consejo Nacional de Investigaciones Científicas y Técnicas (IQUIBICEN-CONICET). Buenos Aires, Argentina
| | - Paula Portela
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales-Consejo Nacional de Investigaciones Científicas y Técnicas (IQUIBICEN-CONICET). Buenos Aires, Argentina
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Liu Y, Gong X, Li M, Si H, Zhou Q, Liu X, Fan Y, Zhang X, Han J, Gu S, Dong J. Effect of Osmotic Stress on the Growth, Development and Pathogenicity of Setosphaeria turcica. Front Microbiol 2021; 12:706349. [PMID: 34367108 PMCID: PMC8342955 DOI: 10.3389/fmicb.2021.706349] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 06/29/2021] [Indexed: 11/22/2022] Open
Abstract
Osmotic stress is a severe condition frequently encountered by microorganisms; however, there is limited knowledge on the influence of hyperosmotic stress on the growth, development and pathogenicity of phytopathogenic fungi. Here, three osmotic conditions (0.4 M NaCl, 0.4 M KCl, and 0.6 M sorbitol supplemented in potato dextrose agar medium) were used to identify the effect of osmotic stress on the growth, development and pathogenicity of Setosphaeria turcica which is a plant pathogenic fungus and causes northern corn leaf blight disease in maize, sorghum, and related grasses. In osmotic stress, the growth rate of mycelium was decreased, and the number of vesicular structures and flocculent secretion outside the hypha cell wall were significantly increased. The qRT-PCR results showed that the osmotic stress quickly activated the HOG-MAPK pathway, up-regulated the expression of the downstream genes, and these genes were most highly expressed within 30 min of exposure to osmotic stress. Furthermore, the germination rate and the yield of conidia were significantly higher under osmotic stress than in the control. A pathogenicity analysis confirmed that pathogenicity of the conidia which were cultured under osmotic stress was significantly enhanced. By analyzing the knock-out mutants of an osmotic stress responsed gene StFPS1, an aquaglyceroporin downstream of the HOG-MAPK pathway, we found that StFPS1 was involved in the formation of appressorium and penetration peg, which affected the penetration ability of S. turcica. In summary, our work explained the correlation between osmotic stress and growth, development, and pathogenicity in S. turcica.
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Affiliation(s)
- Yuwei Liu
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China.,College of Life Sciences, Hebei Agricultural University, Baoding, China.,Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, China
| | - Xiaodong Gong
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China.,College of Life Sciences, Hebei Agricultural University, Baoding, China.,Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, China
| | - Moxiao Li
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China.,College of Life Sciences, Hebei Agricultural University, Baoding, China.,Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, China
| | - Helong Si
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China.,College of Life Sciences, Hebei Agricultural University, Baoding, China.,Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, China
| | - Qihui Zhou
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China.,College of Life Sciences, Hebei Agricultural University, Baoding, China.,Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, China
| | - Xingchen Liu
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China.,College of Life Sciences, Hebei Agricultural University, Baoding, China.,Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, China
| | - Yu Fan
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China.,College of Life Sciences, Hebei Agricultural University, Baoding, China.,Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, China
| | - Xiaoyu Zhang
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China.,College of Life Sciences, Hebei Agricultural University, Baoding, China.,Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, China
| | - Jianmin Han
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China.,College of Life Sciences, Hebei Agricultural University, Baoding, China.,Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, China
| | - Shouqin Gu
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China.,College of Life Sciences, Hebei Agricultural University, Baoding, China.,Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, China
| | - Jingao Dong
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China.,College of Life Sciences, Hebei Agricultural University, Baoding, China.,College of Plant Protection, Hebei Agricultural University, Baoding, China
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