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Zhao K, Bleackley M, Chisanga D, Gangoda L, Fonseka P, Liem M, Kalra H, Al Saffar H, Keerthikumar S, Ang CS, Adda CG, Jiang L, Yap K, Poon IK, Lock P, Bulone V, Anderson M, Mathivanan S. Extracellular vesicles secreted by Saccharomyces cerevisiae are involved in cell wall remodelling. Commun Biol 2019; 2:305. [PMID: 31428693 PMCID: PMC6688994 DOI: 10.1038/s42003-019-0538-8] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 07/02/2019] [Indexed: 12/21/2022] Open
Abstract
Extracellular vesicles (EVs) are membranous vesicles that are released by cells. In this study, the role of the Endosomal Sorting Complex Required for Transport (ESCRT) machinery in the biogenesis of yeast EVs was examined. Knockout of components of the ESCRT machinery altered the morphology and size of EVs as well as decreased the abundance of EVs. In contrast, strains with deletions in cell wall biosynthesis genes, produced more EVs than wildtype. Proteomic analysis highlighted the depletion of ESCRT components and enrichment of cell wall remodelling enzymes, glucan synthase subunit Fks1 and chitin synthase Chs3, in yeast EVs. Interestingly, EVs containing Fks1 and Chs3 rescued the yeast cells from antifungal molecules. However, EVs from fks1∆ or chs3∆ or the vps23∆chs3∆ double knockout strain were unable to rescue the yeast cells as compared to vps23∆ EVs. Overall, we have identified a potential role for yeast EVs in cell wall remodelling.
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Affiliation(s)
- Kening Zhao
- 1Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086 Australia
| | - Mark Bleackley
- 1Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086 Australia
| | - David Chisanga
- 2Department of Computer Science and Information Technology, La Trobe University, Melbourne, VIC 3086 Australia
| | - Lahiru Gangoda
- 1Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086 Australia
| | - Pamali Fonseka
- 1Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086 Australia
| | - Michael Liem
- 1Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086 Australia
| | - Hina Kalra
- 1Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086 Australia
| | - Haidar Al Saffar
- 1Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086 Australia
| | - Shivakumar Keerthikumar
- 1Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086 Australia
- 3Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC 3000 Australia
- 4Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC 3010 Australia
| | - Ching-Seng Ang
- 5Bio21 Institute, University of Melbourne, Melbourne, VIC 3010 Australia
| | - Christopher G Adda
- 1Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086 Australia
| | - Lanzhou Jiang
- 1Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086 Australia
| | - Kuok Yap
- 6ARC Centre of Excellence in Plant Cell Walls and Adelaide Glycomics, The University of Adelaide, Waite Campus, Urrbrae, SA 5064 Australia
| | - Ivan K Poon
- 1Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086 Australia
| | - Peter Lock
- 1Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086 Australia
| | - Vincent Bulone
- 6ARC Centre of Excellence in Plant Cell Walls and Adelaide Glycomics, The University of Adelaide, Waite Campus, Urrbrae, SA 5064 Australia
| | - Marilyn Anderson
- 1Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086 Australia
| | - Suresh Mathivanan
- 1Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086 Australia
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Abstract
Transcriptomics technologies are the techniques used to study an organism's transcriptome, the sum of all of its RNA transcripts. The information content of an organism is recorded in the DNA of its genome and expressed through transcription. Here, mRNA serves as a transient intermediary molecule in the information network, whilst noncoding RNAs perform additional diverse functions. A transcriptome captures a snapshot in time of the total transcripts present in a cell. The first attempts to study the whole transcriptome began in the early 1990s, and technological advances since the late 1990s have made transcriptomics a widespread discipline. Transcriptomics has been defined by repeated technological innovations that transform the field. There are two key contemporary techniques in the field: microarrays, which quantify a set of predetermined sequences, and RNA sequencing (RNA-Seq), which uses high-throughput sequencing to capture all sequences. Measuring the expression of an organism's genes in different tissues, conditions, or time points gives information on how genes are regulated and reveals details of an organism's biology. It can also help to infer the functions of previously unannotated genes. Transcriptomic analysis has enabled the study of how gene expression changes in different organisms and has been instrumental in the understanding of human disease. An analysis of gene expression in its entirety allows detection of broad coordinated trends which cannot be discerned by more targeted assays.
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Affiliation(s)
- Rohan Lowe
- La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Australia
| | - Neil Shirley
- ARC Centre of Excellence in Plant Cell Walls, University of Adelaide, Adelaide, Australia
| | - Mark Bleackley
- La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Australia
| | - Stephen Dolan
- Department of Biochemistry, University of Cambridge, Cambridge, United Kingdom
| | - Thomas Shafee
- La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Australia
- * E-mail:
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Lowe RGT, McCorkelle O, Bleackley M, Collins C, Faou P, Mathivanan S, Anderson M. Extracellular peptidases of the cereal pathogen Fusarium graminearum. Front Plant Sci 2015; 6:962. [PMID: 26635820 PMCID: PMC4645717 DOI: 10.3389/fpls.2015.00962] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 10/22/2015] [Indexed: 05/22/2023]
Abstract
The plant pathogenic fungus Fusarium graminearum (Fgr) creates economic and health risks in cereals agriculture. Fgr causes head blight (or scab) of wheat and stalk rot of corn, reducing yield, degrading grain quality, and polluting downstream food products with mycotoxins. Fungal plant pathogens must secrete proteases to access nutrition and to breakdown the structural protein component of the plant cell wall. Research into the proteolytic activity of Fgr is hindered by the complex nature of the suite of proteases secreted. We used a systems biology approach comprising genome analysis, transcriptomics and label-free quantitative proteomics to characterize the peptidases deployed by Fgr during growth. A combined analysis of published microarray transcriptome datasets revealed seven transcriptional groupings of peptidases based on in vitro growth, in planta growth, and sporulation behaviors. A high resolution mass spectrometry-based proteomics analysis defined the extracellular proteases secreted by F. graminearum. A meta-classification based on sequence characters and transcriptional/translational activity in planta and in vitro provides a platform to develop control strategies that target Fgr peptidases.
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Samuel M, Bleackley M, Anderson M, Mathivanan S. Extracellular vesicles including exosomes in cross kingdom regulation: a viewpoint from plant-fungal interactions. Front Plant Sci 2015; 6:766. [PMID: 26442078 PMCID: PMC4585280 DOI: 10.3389/fpls.2015.00766] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 09/07/2015] [Indexed: 05/21/2023]
Affiliation(s)
- Monisha Samuel
- Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe UniversityMelbourne, VIC, Australia
| | - Mark Bleackley
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe UniversityMelbourne, VIC, Australia
- *Correspondence: Mark Bleackley, Marilyn Anderson and Suresh Mathivanan ; ;
| | - Marilyn Anderson
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe UniversityMelbourne, VIC, Australia
- *Correspondence: Mark Bleackley, Marilyn Anderson and Suresh Mathivanan ; ;
| | - Suresh Mathivanan
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe UniversityMelbourne, VIC, Australia
- *Correspondence: Mark Bleackley, Marilyn Anderson and Suresh Mathivanan ; ;
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