I belie ve that the book would provide an overview of the recent developments in the domain of yeast research with some new ideas, which could serve as an inspiration and challenge for researchers in this field. Ne w Delhi Prof. Asis Datta Dec. 24, 2007 F ormer Vice-chancellor, JNU Director, NCPGR (New Delhi) Pr eface Yeasts are eukaryotic unicellular microfungi that are widely distributed in the natural environments. Although yeasts are not as ubiquitous as bacteria in the na- ral environments, they have been isolated from terrestrial, aquatic and atmospheric environments. Yeast communities have been found in association with plants, a- mals and insects. Several species of yeasts have also been isolated from specialized or extreme environments like those with low water potential (e. g. high sugar/salt concentrations), low temperature (e. g. yeasts isolated from Antarctica), and low oxygen availability (e. g. intestinal tracts of animals). Around 1500 species of yeasts belonging to over 100 genera have been described so far. It is estimated that only 1% of the extant yeasts on earth have been described till date. Therefore, global efforts are underway to recover new yeast species from a variety of normal and extreme environments. Yeasts play an important role in food chains, and carbon, nitrogen and sulphur cycles. Yeasts can be genetically manipulated by hybridization, mutation, rare m- ing, cytoduction, spheroplast fusion, single chromosomal transfer and transfor- tion using recombinant technology. Yeasts (e. g.
1 Antarctic yeasts: biodiversity and potential applications, S. Shivaji and G. S. Prasad; 2 Basidiomycetous yeasts: Current status, B.N. Johri and D.K. Choudhury; 3 Hansenula polymorpha (Pichia angusta) - Biology and applications, Gotthard Kunze, Hyun Ah Kang and Gerd Gellissen; 4 Debaryomyces hansenii: an osmotolerant and halo-tolerant yeast, Monika Aggarwal and Alok K Mondal; 5 Candida famata (Debaryomyces hansenii), Andriy A. Sibirny and Andriy Y. Voronovsky; 6 Pichia guilliermondii, Andriy A. Sibirny and Yuriy R. Boretsky; 7 Assimilation of unusual carbon compounds, Wouter J. Middelhoven; 8 Ecology and biodiversity of yeasts with potential value in biotechnology, T. Deak; 9 Yeast diversity in fermented foods and beverages, Jyoti Prakash Tamang and Graham H. Fleet; 10 Utilization of yeasts in biological control programs, Pimenta, R.S., Morais, P.B., Rosa, C.A. and Corrêa Jr., A.; 11 Opportunistic pathogenic yeasts, Uma Banerjee; 12 Interaction between yeasts and zinc, Raffaele De Nicola and Graeme Walker; 13 Glutathione production in yeast, Anand K Bachhawat, Dwaipayan Ganguli, Jaspreet Kaur, Neha Kasturia, Anil Thakur, Hardeep Kaur, Akhilesh Kumar and Amit Yadav; 14 Fermentative and aromatic ability of Kloeckera and Hanseniaspora yeasts, Dulce M. Díaz-Montaño and J. de Jesús Ramírez Córdova; 15 Assimilatory nitrate reduction in Hansenula polymorpha, Beatrice Rossi and Enrico Berardi;
Part II. Genetic and Molecular Insights:16 Yeast genetics and biotechnological applications, Saroj Mishra and Richa Singh; 17 A wide-range integrative expression vector (comedtm) system for yeasts, Gerhard Steinborn, Gotthard Kunze and Gerd Gellissen; 18 Advances in gene expression in non-conventional yeasts, Jacobus Albertyn, Michel Labuschagne and Sanet Nel; 19 A comparative study of RNApolymerase II transcription machinery in yeasts, Nimisha Sharma and Surbhi Mehta; 20 Non-genetic engineering approaches to isolating and generating novel yeasts for industrial applications, Paul J. Chambers, Jenny R. Bellon, Simon A. Schmidt, C. Varela and Isak S. Pretorius; 21 Yeast proteome analysis, Andrea Matros and Hans-Peter Mock; 22 Yeast genomics for bread, beer, biology, bucks and breath, Kishore R. Sakharkar and Meena K. Sakharkar;
Part III. Biotechnological Applications: 23 Ethanol production from traditional and emerging raw materials, Andreas Rudolf, Kaisa Karhumaa and Bärbel Hahn-Hägerdal; 24 Potentiality of yeasts in the direct conversion of starchy materials to ethanol and its relevance in the new millennium, L.V.A.Reddy, O.V.S.Reddy and S.C. Basappa; 25 Thermotolerant yeasts for bioethanol production using ignocellulosic substrates, L.Venkateswar Rao and Chand Pasha; 26 Applications of the non-conventional yeast Yarrowia lipolytica, France Thevenieau, Jean-Marc Nicaud and Claude Gaillardin; 27 Arxula adeninivorans (Blastobotrys adeninivorans) – a dimorphic yeast of great biotechnological potential, Erik Böer, Gerhard Steinborn, Kristina Tag, Martina Körner, Gerd Gellissen and G. Kunze; 28 Biotechnological applications of dimorphic yeasts, N. Doiphode, C. Joshi, V. Ghormade and M.V. Deshpande; 29 Extracellular polysaccharides produced by yeasts and yeast-like fungi, Inge N.A. Van Bogaert, Sofie L. De Maeseneire and Erick J. Vandamme; 30 Industrially important carbohydrate degrading enzymes from yeasts: pectinase and chitinase, ß-1, 3-glucanase, Sathyanarayana N. Gummadi, D. Sunil Kumar, Swati S. Dash and Santosh Kumar Sahu; 31 Yeast acid phosphatases and phytases: production, characterization and commercial prospects, Kaur, P. and T. Satyanarayana; 32 Nitrile-metabolizing yeasts, Tek Chand Bhalla, Monica Sharma and
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