Anoxia Evidence for Eukaryote Survival and Paleontological Strategies pdf

[...]... (Horikawa in this volume) The present topic of ANOXIA: Evidence for Eukaryote Survival and Paleontological Strategies is timely and exciting and we now present it in this volume, which is aimed at biological researchers of ecology and biodiversity, to astrobiologists, to readers interested in extreme environments, and also paleoecologists and paleontologists (and some sedimentologists) This volume is number... Baernhard and Sen Gupta (1999), Levin (2004), Stramma et al (2008), and Tyson and Pearson (1991) STEPPING INTO THE BOOK OF ANOXIA AND EUKARYOTES xv Part VI turns back in time in search for signals, tracers and evidence from modern anoxic environments that can be applied to the reconstruction, and understanding of the fossil record Stable isotopes are commonly used in biogeochemistry, but rarely scaled for. .. eukaryotes to hypoxia and anoxia, demonstrating that anoxic life is not strictly anaerobic microbes able to cope with the reducing chemical habitat of their substrate All kinds of biota may attune to anoxic conditions following the demands of xi xii STEPPING INTO THE BOOK OF ANOXIA AND EUKARYOTES hosted symbionts, for prolonging the survival and success of their offspring and encystments, for enhancement... anoxic habitats E-mail: jbernhard@whoi.edu xx Biodata of Joseph Seckbach, editor of this volume, and author of “Introduction to Anoxia: Evidence for Eukaryote Survival and Paleontological Strategies Professor Joseph Seckbach is the founder and chief editor of Cellular Origins, Life in Extreme Habitats and Astrobiology (“COLE”) book series (the present volume is number 21 of this series, see: www.springer.com/series/5775)... (2009) Childress and Seibel (1998) Helly and Levin (2004) Childress and Seibel (1998) Sorokin (2005) Karstensen et al (2008) Bernhard and Sen Gupta (1999), Levin (2004) Fenchel and Finlay (2008) Berner (1981), Paulmier and Ruiz-Pino (2009) Helly and Levin (2004), Middelburg and Levin (2009) Lower threshold of the transition Helly and Levin (2004), layer from O2 to NO3− respiration Middelburg and Levin (0.7–20... enthusiasm and effort The author thanks Professors Aharon Oren and David Chapman for their constructive suggestions to improve this Introduction Joseph Seckbach The Hebrew University of Jerusalem Jerusalem, Israel STEPPING INTO THE BOOK OF ANOXIA AND EUKARYOTES With this book, the editors, authors, and reviewers cooperated in promoting the debate on the persistence of eukaryotes in anoxic environments and. .. enhancement of their competitiveness, and/ or for successful survival and rapid repopulation after sporadic oxygen deficiency Very different eukaryotes employ considerable and sometimes decisive advantage by coping and managing anoxic conditions; and all this for quite varied reasons These chapters cover magnetotactic protists (Bazylinski et al.), ciliates (Beaudoin et al.), and protistan symbionts hosted by... importance for evolutionary biology: anaerobiosis in extant eukaryotes would be either a late adaptation developed by obligate aerobic eukaryotes, or an omnipresent ability since the most ancestral lineage A comprehensive overview of pathways for the adaptation to anoxic conditions are explained and discussed by Levy and Levy Part III presents contributions on the surprising tolerance and diversity of eukaryotes... (2009) Half-saturation for an amoeba Fenchel and Finlay (» 0.2% of atmospheric pressure) (2008) Half-saturation for yeast cells Fenchel and Finlay (» 0.07% of atmospheric pressure) (2008) Half-saturation for bacteria Fenchel and Finlay and mitochondria (» 0.05% (2008) of atmospheric pressure) Neither free oxygen nor reducing Berner (1981), conditions (e.g., production of Baernhard and Sen hydrogen sulfide)... brine shrimp (Clegg), and the superstar specialists in surviving super-stressors, the tardigrades (Horikawa) Even flowering plants face driving forces to acquire specific capabilities for coping with pulsed or sporadic anoxia (Crawford) A specialized part of the book, Part IV, presents work on Foraminifera, which are a unique taxon in that most extant forms easily fossilize (vs metazoans and other protists . of ANOXIA: Evidence for Eukaryote Survival and Paleontological Strategies is timely and exciting and we now present it in this volume, which is aimed at biological researchers of ecology and. 639 Author Index 647 ix INTRODUCTION TO ANOXIA: EVIDENCE FOR EUKARYOTE SURVIVAL AND PALEONTOLOGICAL STRATEGIES Research in anoxic environments is a relatively new and rapidly growing branch of science. further volumes: http://www.springer.com/series/5775 Anoxia Evidence for Eukaryote Survival and Paleontological Strategies Edited by Alexander V. Altenbach Ludwig-Maximilians-University, Munich,