Since performing Ph. D is more than experiments, tables, graphs, monday seminars, conferences and so on I would like to express my gratitude: I am immensely happy to thank all those who have helped me in this hard way. My gratitude goes to Prof. Dr. Ursula Kües for giving me the opportunity to work in her group and for providing any opportunities for developing myself in many directions during my doctoral studies, and my life in Germany. I sincerely thank Dr. Andrzej Majcherczyk for his advices and direction on part of this work. My special thanks to Dr. Patrik Hoegger for his invaluable support and his endless patience during large part of my work. Furthermore, I would like to thank Prof. Dr. Gerhard Braus, Prof. Dr. Andrea Polle and Prof. Dr. Stefany Pöggeler for their readiness to evaluate my thesis and being my examiners.Víctor Mora-Pérez deserves part of the acknowledgments, without his primary motivation my interest for working with mushrooms during my bachelor studies probably would have never been appeared in my mind. Dr. Mercedes Sobal Cruz motivated me for continuing master studies in the same field. In the same way, I would like to extend my gratitude to Dr. Daniel Martínez-Carrera for making, through his motivation and support, possible this adventure called PhD. If I continue motivated to work with mushrooms is thank to you! By now, it is not easy to find the appropriate words to describe all the feelings towards all the people with whom, in different times, I have been sharing this period of my life. Easy to say, but full of experiences, happiness, disappointments, laughs, anger and even tears… All of you guys have a space in my heart and will never forget all the time we spend together. Thanks for being my colleagues, friends and family at the same time: