Identification of Genomic Differences Between Laboratory and Commercial Strains of Saccharomyces Cerevisiae PDF Download
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Author: Anthony John Heinrich
Publisher:
ISBN:
Category : Saccharomyces cerevisiae
Languages : en
Pages : 292
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Book Description
"The yeast Saccharomyces cerevisiae is used in many industrial applications including beer brewing, bread making, and winemaking. Winemaking yeast strains have the ability to convert grape sugars into alcohol and other metabolites consistent with good wine. An exploratory comparative approach was undertaken to identify the genes and corresponding proteins that give wine yeast strains of S. cerevisiae their distinctive phenotype, with a focus on studying genes that provide tolerance to ethanol." --p. ii.
Author: Anthony John Heinrich
Publisher:
ISBN:
Category : Saccharomyces cerevisiae
Languages : en
Pages : 292
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Book Description
"The yeast Saccharomyces cerevisiae is used in many industrial applications including beer brewing, bread making, and winemaking. Winemaking yeast strains have the ability to convert grape sugars into alcohol and other metabolites consistent with good wine. An exploratory comparative approach was undertaken to identify the genes and corresponding proteins that give wine yeast strains of S. cerevisiae their distinctive phenotype, with a focus on studying genes that provide tolerance to ethanol." --p. ii.
Author: Amparo Querol
Publisher: Springer Science & Business Media
ISBN: 3540283986
Category : Science
Languages : en
Pages : 457
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Book Description
As a group of microorganisms, yeasts have an enormous impact on food and bev- age production. Scientific and technological understanding of their roles in this p- duction began to emerge in the mid-1800s, starting with the pioneering studies of Pasteur in France and Hansen in Denmark on the microbiology of beer and wine fermentations. Since that time, researchers throughout the world have been engaged in a fascinating journey of discovery and development – learning about the great diversity of food and beverage commodities that are produced or impacted by yeast activity, about the diversity of yeast species associated with these activities, and about the diversity of biochemical, physiological and molecular mechanisms that underpin the many roles of yeasts in food and beverage production. Many excellent books have now been published on yeasts in food and beverage production, and it is reasonable to ask the question – why another book? There are two different approaches to describe and understand the role of yeasts in food and beverage production. One approach is to focus on the commodity and the technology of its processing (e. g. wine fermentation, fermentation of bakery products), and this is the direction that most books on food and beverage yeasts have taken, to date. A second approach is to focus on the yeasts, themselves, and their bi- ogy in the context of food and beverage habitats.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 11
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Book Description
How populations that inhabit the same geographical area become genetically differentiated is not clear. To investigate this, we characterized phenotypic and genetic differences between two populations of Saccharomyces cerevisiae that in some cases inhabit the same environment but show relatively little gene flow. We profiled stress sensitivity in a group of vineyard isolates and a group of oak-soil strains and found several niche-related phenotypes that distinguish the populations. We performed bulk-segregant mapping on two of the distinguishing traits: The vineyard-specific ability to grow in grape juice and oak-specific tolerance to the cell wall damaging drug Congo red. To implicate causal genes, we also performed a chemical genomic screen in the lab-strain deletion collection and identified many important genes that fell under quantitative trait loci peaks. One gene important for growth in grape juice and identified by both the mapping and the screen was SSU1, a sulfite-nitrite pump implicated in wine fermentations. The beneficial allele is generated by a known translocation that we reasoned may also serve as a genetic barrier. We found that the translocation is prevalent in vineyard strains, but absent in oak strains, and presents a postzygotic barrier to spore viability. Furthermore, the translocation was associated with a fitness cost to the rapid growth rate seen in oak-soil strains. Lastly, our results reveal the translocation as a dual-function locus that enforces ecological differentiation while producing a genetic barrier to gene flow in these sympatric populations.
Author: Valeria Mapelli
Publisher: Humana Press
ISBN: 9781493905621
Category : Science
Languages : en
Pages : 0
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Book Description
Yeast Metabolic Engineering: Methods and Protocols provides the widely established basic tools used in yeast metabolic engineering, while describing in deeper detail novel and innovative methods that have valuable potential to improve metabolic engineering strategies in industrial biotechnology applications. Beginning with an extensive section on molecular tools and technology for yeast engineering, this detailed volume is not limited to methods for Saccharomyces cerevisiae, but describes tools and protocols for engineering other yeasts of biotechnological interest, such as Pichia pastoris, Hansenula polymorpha and Zygosaccharomyces bailii. Tools and technologies for the investigation and determination of yeast metabolic features are described in detail as well as metabolic models and their application for yeast metabolic engineering, while a chapter describing patenting and regulations with a special glance at yeast biotechnology closes the volume. Written in the highly successful Methods in Molecular Biology series format, most chapters include an introduction to their respective topic, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols and tips on troubleshooting and avoiding known pitfalls. Comprehensive and authoritative, Yeast Metabolic Engineering: Methods and Protocols aims to familiarize researchers with the current state of these vital and increasingly useful technologies.
Author: Patrizia Romano
Publisher: Springer Nature
ISBN: 1493997823
Category : Technology & Engineering
Languages : en
Pages : 515
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Book Description
It is well established that certain strains of yeasts are suitable for transforming grape sugars into alcohol, while other yeast strains are not suitable for grape fermentations. Recent progress has clearly demonstrated that the sensory profile of a wine is characteristic of each vine cultivated, and the quality and technological characteristics of the final product varies considerably due to the strains which have performed and/or dominated the fermentation process. Because of their technological properties, wine yeast strains differ significantly in their fermentation performance and in their contribution to the final bouquet and quality of wine, such as useful enzymatic activities and production of secondary compounds related both to wine organoleptic quality and human health. The wine industry is greatly interested in wine yeast strains with a range of specialized properties, but as the expression of these properties differs with the type and style of wine to be made, the actual trend is in the use of selected strains, which are more appropriate to optimize grape quality. Additionally, wine quality can be influenced by the potential growth and activity of undesirable yeast species, considered spoilage yeasts, which cause sluggish and stuck fermentation and detrimental taste and aroma in the wine.
Author: Helmut König
Publisher: Springer
ISBN: 3319600214
Category : Technology & Engineering
Languages : en
Pages : 711
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Book Description
The second edition of the book begins with the description of the diversity of wine-related microorganisms, followed by an outline of their primary and energy metabolism. Subsequently, important aspects of the secondary metabolism are dealt with, since these activities have an impact on wine quality and off-flavour formation. Then chapters about stimulating and inhibitory growth factors follow. This knowledge is helpful for the growth management of different microbial species. The next chapters focus on the application of the consolidated findings of molecular biology and regulation the functioning of regulatory cellular networks, leading to a better understanding of the phenotypic behaviour of the microbes in general and especially of the starter cultures as well as of stimulatory and inhibitory cell-cell interactions during wine making. In the last part of the book, a compilation of modern methods complete the understanding of microbial processes during the conversion of must to wine.This broad range of topics about the biology of the microbes involved in the vinification process could be provided in one book only because of the input of many experts from different wine-growing countries.
Author: David C. Amberg
Publisher: CSHL Press
ISBN: 0879697288
Category : Genetics
Languages : en
Pages : 250
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Book Description
"Methods in Yeast Genetics" is a course that has been offered annually at Cold Spring Harbor for the last 30 years. This provides a set of teaching experiments along with the protocols and recipes for the standard techniques and reagents used in the study of yeast biology.
Author: Antonio Morata
Publisher: BoD – Books on Demand
ISBN: 9535135996
Category : Technology & Engineering
Languages : en
Pages : 302
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Book Description
Yeast - Industrial Applications is a book that covers applications and utilities of yeasts in food, chemical, energy, and environmental industries collected in 12 chapters. The use of yeasts in the production of metabolites, enzymatic applications, fermented foods, microorganism controls, bioethanol production, and bioremediation of contaminated environments is covered showing results, methodologies, and processes and describing the specific role of yeasts in them. The traditional yeast Saccharomyces cerevisiae is complemented in many applications with the use of less known non-Saccharomyces yeasts that now are being used extensively in industry. This book compiles the experience and know-how of researchers and professors from international universities and research centers.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309166152
Category : Science
Languages : en
Pages : 254
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Book Description
Assists policymakers in evaluating the appropriate scientific methods for detecting unintended changes in food and assessing the potential for adverse health effects from genetically modified products. In this book, the committee recommended that greater scrutiny should be given to foods containing new compounds or unusual amounts of naturally occurring substances, regardless of the method used to create them. The book offers a framework to guide federal agencies in selecting the route of safety assessment. It identifies and recommends several pre- and post-market approaches to guide the assessment of unintended compositional changes that could result from genetically modified foods and research avenues to fill the knowledge gaps.
Author: Carl Clarence Lindegren
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 390
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Book Description
