DOCSLIB.ORG

Abstracts BIOMIN XV: 15Th International Symposium on Biomineralization 9–13 September 2019 • Munich, Germany

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Abstracts BIOMIN XV: 15Th International Symposium on Biomineralization 9–13 September 2019 • Munich, Germany Abstracts BIOMIN XV: 15th International Symposium on Biomineralization 9–13 September 2019 • Munich, Germany 1. Keynote lectures (K1 – K8) ................................................................................................................. 2 2. Talks (T1 – T89) ................................................................................................................................... 4 3. Posters (P1 – P107) ............................................................................................................................. 31 Design/Layout Layout: www.conventus.de Editorial Deadline: 31 August 2019 1 K 1 K 3 On ion transport and concentration toward mineral formation Getting to the roots of apatite-based biomineralization of dental in sea urchin larvae hard tissues: from Conodonts and Cichlids to related Keren Kahi1, Neta Varsano1, Andrea Sorrentino2, Eva Pereiro2, Peter Rez3, bioinspired materials Steve Weiner1 and Lia Addadi*1 Elena V. Sturm*1 (née Rosseeva) 1Department of Structural Biology, Weizmann Institute of Science, Rehovot, 1Physical Chemistry, Zukunftskolleg, University of Konstanz, Konstanz, Israel Germany 2ALBA Synchrotron Light Source, MISTRAL Beamline−Experiments Division, Barcelona, Spain Chordates and especially vertebrates represent the most highly advanced and 3Department of Physics, Arizona State University, Tempe, AZ, USA complex group of organisms. The formation of their hierarchical apatite- organic based hard tissues is evolutionary optimized and exhibits high During mineralized tissue formation, organisms are faced with a major structural complexity on various length scales and amazing mechanical problem in ion transport and concentration. Suffice it to consider that marine performance. The major objective of our research is to explore the animals must concentrate calcium by >4 orders of magnitude relative to its biomineralization processes involved in the formation of dental (and dental- concentration in sea water to deposit calcite or aragonite minerals. Sea urchin like) apatite-based hard tissues of earliest and modern vertebrates. larvae are good model organisms for studying ion processing during skeleton Specifically, in my presentation I will focus on the detailed characterization formation, because of the extensive knowledge accumulated on the processes of morphology-structure-composition-property relationships of hard tissues related to mineral deposition. Sea urchin larvae have endoskeletons of feeding apparatus of Conodonts and Cichlid Fishes. We elaborate and composed of two calcitic spicules, deposited by primary mesenchymal combine exciting evolutionary model systems with cutting-edge spicule-forming cells (PMCs). PMCs take up seawater through spectroscopy, microscopy and diffraction techniques to analyze the endocytosis1 into a complex network of vacuoles. Within the PMCs, calcium structural, chemical and morphogenetic basis of the dental hard tissue ions are translocated from the seawater vacuoles to various organelles and biomineralization process. Our new understanding of dentical and tooth vesicles where they accumulate, and subsequently precipitate as an structure in Conodont and Cichlids could also advance strategies for amorphous calcium carbonate (ACC). The amorphous precipitates are finally synthesizing bioinspired and biomimetic materials and deepen our translocated to the spicule, where they crystallize. knowledge of their morphogenesis process. We address the question of the form in which calcium ions are stored in different locations in the cell, whether dissolved or solid and in which K 4 structural phase. In order to locate and characterize calcium content in Coral Biomineralization: linking pieces of the puzzle individual vesicles we performed cryo-soft X-ray microscopy (cryo-SXM) Sylvie Tambutté*1 on dispersed PMCs. The presence of concentrated calcium ions was detected 1Department of Marine Biology, Centre Scientifique de Monaco, Monaco by imaging the cells in the energy range before and after the calcium L- absorption edges. We characterized the chemical environment of the calcium Coral biomineralization is the process that leads to the formation of a calcium ions using X-ray absorption spectroscopy. We observe hundreds of particles carbonate exoskeleton. As for other biominerals, two essential questions are: containing Ca in each PMC. The particles are composed of different forms What do we know about the control of coral biomineralization? How can we of highly disordered phases of calcium salts, presumably carbonate. We also link biological control with physico-chemical processes? I will show how developed methods for quantitative evaluation of calcium ion concentrations. studies performed at the Centre Scientifique de Monaco since the 90’s have We observed concentrations diluted relative to ACC (19M), but concentrated provided insight into the coral biomineralization process from the whole relative to sea water (10mM). The spectroscopic and analytical data thus organism to the gene by combining molecular and physiological approaches. together indicate a transition through a series of amorphous calcium I will present how data obtained from experiments conducted in different carbonate phases in the low molar concentration range. These data shed light coral compartments: the tissues, the extracellular calcifying medium and the on the intracellular transport and concentration pathways of calcium ions in skeleton can be linked together and can help in deciphering where and how PMCs. This may well be relevant to other organisms, and thus lead to a biological control occurs. More specifically, I will present 1) the deeper understanding of biogenic mineral formation. measurements of pH, carbonate and calcium in the extracellular medium that 1. N. Vidavsky, S. Addadi, A. Schertel, D. Ben-Ezra, M. Shpigel, L. Addadi, we have obtained by developing in vivo approaches, and 2) the mechanisms S. Weiner, Calcium transport into the cells of the sea urchin larva in relation involved in transepithelial ion transport that we have characterized by to spicule formation. Proc. Natl. Acad. Sci. U.S.A, 113(45), 12637-12642, molecular and physiological approaches. Finally, I will show how changes 2016. 2. E. Beniash, J. Aizenberg, L. Addadi, S. Weiner, Amorphous in environmental parameters such as seawater pH influence biological calcium carbonate transforms into calcite during sea urchin larval spicule control and can provide information on coral biomineralization. growth. P. Roy. Soc. B-Biol. Sci., 264 (1380), 461-465, (1997). K 5 K 2 Towards bone-on-a-chip: cell differentiation and extracellular Biomineralization in echinoderms: developmental mechanisms matrix organization and evolution. Sana Ansari1,2,3, Esther Cramer1,2, Johanna Melke2,3, Keita Ito2,3, Sandra Charles Ettensohn*1 Hofmann2,3, Nico Somemrdijk1,3, Anat Akiva*1,3 1Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, 1Laboratory of Materials and Interface Chemistry and Center for Multiscale PA USA Electron Microscopy, Department of Chemical Engineering and Chemistry. Eindhoven University of Technology, Eindhoven, The Netherlands. All adult echinoderms have a calcite-based endoskeleton. Embryonic and 2Institute for Complex Molecular Systems. Eindhoven University of larval patterns of skeletogenesis, however, vary greatly across the phylum, Technology, Eindhoven, The Netherlands. revealing a rich history of evolutionary modifications to the developmental 3Department of Biomedical Engineering. Eindhoven University of programs that underlie biomineral formation in this group. The formation of Technology, Eindhoven, The Netherlands. the skeleton has been particularly well studied in embryos of euechinoid sea urchins, which have served as a major experimental model for developmental Introduction biologists for more than a century. The cellular behaviors that underlie The formation of bone involves a cascade of biological and chemical events skeleton formation in sea urchin embryos have been described in detail and that control the process of collagen mineralization in bone. In this process, many gene products that play essential roles in biomineral formation have bone cells named osteoblasts form a 3D organized collagen matrix and been identified. In addition, a complex transcriptional network that underlies secrete several non-collagenous proteins (NCPs) that control the skeletogenesis has recently been elucidated. This gene regulatory network mineralization process. However, the precise mechanism by which these links the early specification of embryonic skeletogenic cells (primary NCPs control the mineralization of collagen fibrils is not yet clear. In an mesenchyme cells, or PMCs) to their cellular behaviors and biomineral- attempt to get a direct observation on the time and place of the expression of forming properties. The PMC gene network is proving to be a powerful tool these proteins, and to study their role in collagen mineralization, we use an for understanding the genetic and molecular control of skeletogenesis in advanced in vitro model system. echinoderms and the evolution of biomineralization. Materials and methods. Here, human mesenchymal stromal cells (hMSCs) are seeded on 3D silk scaffold and are exposed to osteogenic medium and to continuous mechanical stimulation. Depending on the composition of the osteogenic medium and the specific mechanical load, we can control the differentiation of the hMSCs to osteoblasts and sequentially into osteocytes – the last
Load more

Recommended publications
  • Confocal Raman Microscope Mapping As a Tool to Describe Different
    Biogeosciences, 8, 3761–3769, 2011 www.biogeosciences.net/8/3761/2011/ Biogeosciences doi:10.5194/bg-8-3761-2011 © Author(s) 2011. CC Attribution 3.0 License. Confocal Raman microscope mapping as a tool to describe different mineral and organic phases at high spatial resolution within marine biogenic carbonates: case study on Nerita undata (Gastropoda, Neritopsina) G. Nehrke1 and J. Nouet2 1Alfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany 2University Paris Sud, IDES UMR 8148, batimentˆ 504, campus universitaire, 91405 Orsay cedex, France Received: 20 May 2011 – Published in Biogeosciences Discuss.: 9 June 2011 Revised: 10 November 2011 – Accepted: 7 December 2011 – Published: 20 December 2011 Abstract. Marine biogenic carbonates formed by inverte- 1 Introduction brates (e.g. corals and mollusks) represent complex compos- ites of one or more mineral phases and organic molecules. Calcium carbonates formed by marine calcifying organisms This complexity ranges from the macroscopic structures ob- (e.g. corals and mollusks) received much attention in the field served with the naked eye down to sub micrometric struc- of biogeosciences during the last decades. On the one hand tures only revealed by micro analytical techniques. Under- they represent important proxy archives (e.g. oxygen isotopic standing to what extent and how organisms can control the composition can be used for temperature reconstruction (Mc- formation of these structures requires that the mineral and Crea, 1950; Urey et al., 1951)) and on the other hand they are organic phases can be identified and their spatial distribution affected by the increasing acidification of the ocean due to related.
    [Show full text]
  • Biogeographical Homogeneity in the Eastern Mediterranean Sea. II
    Vol. 19: 75–84, 2013 AQUATIC BIOLOGY Published online September 4 doi: 10.3354/ab00521 Aquat Biol Biogeographical homogeneity in the eastern Mediterranean Sea. II. Temporal variation in Lebanese bivalve biota Fabio Crocetta1,*, Ghazi Bitar2, Helmut Zibrowius3, Marco Oliverio4 1Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Napoli, Italy 2Department of Natural Sciences, Faculty of Sciences, Lebanese University, Hadath, Lebanon 3Le Corbusier 644, 280 Boulevard Michelet, 13008 Marseille, France 4Dipartimento di Biologia e Biotecnologie ‘Charles Darwin’, University of Rome ‘La Sapienza’, Viale dell’Università 32, 00185 Roma, Italy ABSTRACT: Lebanon (eastern Mediterranean Sea) is an area of particular biogeographic signifi- cance for studying the structure of eastern Mediterranean marine biodiversity and its recent changes. Based on literature records and original samples, we review here the knowledge of the Lebanese marine bivalve biota, tracing its changes during the last 170 yr. The updated checklist of bivalves of Lebanon yielded a total of 114 species (96 native and 18 alien taxa), accounting for ca. 26.5% of the known Mediterranean Bivalvia and thus representing a particularly poor fauna. Analysis of the 21 taxa historically described on Lebanese material only yielded 2 available names. Records of 24 species are new for the Lebanese fauna, and Lioberus ligneus is also a new record for the Mediterranean Sea. Comparisons between molluscan records by past (before 1950) and modern (after 1950) authors revealed temporal variations and qualitative modifications of the Lebanese bivalve fauna, mostly affected by the introduction of Erythraean species. The rate of recording of new alien species (evaluated in decades) revealed later first local arrivals (after 1900) than those observed for other eastern Mediterranean shores, while the peak in records in conjunc- tion with our samplings (1991 to 2010) emphasizes the need for increased field work to monitor their arrival and establishment.
    [Show full text]
  • Polymorphic Protective Dps–DNA Co-Crystals by Cryo Electron Tomography and Small Angle X-Ray Scattering
    biomolecules Article Polymorphic Protective Dps–DNA Co-Crystals by Cryo Electron Tomography and Small Angle X-Ray Scattering Roman Kamyshinsky 1,2,3,* , Yury Chesnokov 1,2 , Liubov Dadinova 2, Andrey Mozhaev 2,4, Ivan Orlov 2, Maxim Petoukhov 2,5 , Anton Orekhov 1,2,3, Eleonora Shtykova 2 and Alexander Vasiliev 1,2,3 1 National Research Center “Kurchatov Institute”, Akademika Kurchatova pl., 1, 123182 Moscow, Russia; [email protected] (Y.C.); [email protected] (A.O.); [email protected] (A.V.) 2 Shubnikov Institute of Crystallography of Federal Scientific Research Centre “Crystallography and Photonics” of Russian Academy of Sciences, Leninskiy prospect, 59, 119333 Moscow, Russia; [email protected] (L.D.); [email protected] (A.M.); [email protected] (I.O.); [email protected] (M.P.); [email protected] (E.S.) 3 Moscow Institute of Physics and Technology, Institutsky lane 9, 141700 Dolgoprudny, Moscow Region, Russia 4 Shemyakin-Ovchinnikov Institute of bioorganic chemistry of Russian Academy of Sciences, Miklukho-Maklaya, 16/10, 117997 Moscow, Russia 5 Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences, Leninsky prospect, 31, 119071 Moscow, Russia * Correspondence: [email protected]; Tel.: +7-916-356-3963 Received: 6 November 2019; Accepted: 22 December 2019; Published: 26 December 2019 Abstract: Rapid increase of intracellular synthesis of specific histone-like Dps protein that binds DNA to protect the genome against deleterious factors leads to in cellulo crystallization—one of the most curious processes in the area of life science at the moment. However, the actual structure of the Dps–DNA co-crystals remained uncertain in the details for more than two decades.
    [Show full text]
  • Two Polymorphic Cholesterol Monohydrate Crystal Structures Form in Macrophage Culture Models of Atherosclerosis
    Two polymorphic cholesterol monohydrate crystal INAUGURAL ARTICLE structures form in macrophage culture models of atherosclerosis Neta Varsanoa, Fabio Beghib, Nadav Eladc, Eva Pereirod, Tali Dadoshc, Iddo Pinkasc, Ana J. Perez-Bernad, Xueting Jine, Howard S. Kruthe, Leslie Leiserowitzf, and Lia Addadia,1 aDepartment of Structural Biology, Weizmann Institute of Science, 76100 Rehovot, Israel; bDepartment of Chemistry, Università Degli Studi Di Milano, I-20122 Milano, Italy; cDepartment of Chemical Research Support, Weizmann Institute of Science, 76100 Rehovot, Israel; dMISTRAL Beamline−Experiments Division, ALBA Synchrotron Light Source, Cerdanyola del Valles, 08290 Barcelona, Spain; eExperimental Atherosclerosis Section, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892-1422; and fDepartment of Materials and Interfaces, Weizmann Institute of Science, 76100 Rehovot, Israel This contribution is part of the special series of Inaugural Articles by members of the National Academy of Sciences elected in 2017. Contributed by Lia Addadi, June 12, 2018 (sent for review February 20, 2018; reviewed by Bart Kahr and Samuel I. Stupp) The formation of atherosclerotic plaques in the blood vessel walls levels increase in the macrophage cell, they become “foam cells,” is the result of LDL particle uptake, and consequently of choles- and initiate formation of atherosclerotic plaques (8–11). Sub- terol accumulation in macrophage cells. Excess cholesterol accu- sequently, unesterified cholesterol supersaturation in the cells may mulation eventually results in cholesterol crystal deposition, the lead to crystal precipitation, before and/or after cell death (12– hallmark of mature atheromas. We followed the formation of 14). Crystalline cholesterol is not easily dissolved or removed from cholesterol crystals in J774A.1 macrophage cells with time, during the plaques (6).
    [Show full text]
  • Genetic Characterisation of Oyster Populations Along the North-Eastern
    African Journal of Marine Science Archimer December 2008, Volume 30, Number 3, Pages 489- http://archimer.ifremer.fr 495 http://dx.doi.org/10.2989/AJMS.2008.30.3.4.638 © 2008 NISC, Taylor & Francis ailable on the publisher Web site Genetic characterisation of oyster populations along the north-eastern coast of Tunisia S. Dridi1, 2, *, M. S. Romdhane2, S. Heurtebise3, M. El Cafsi1, P. Boudry3 and S. Lapègue4 1 Faculté des Sciences de Tunis, Département de Biologie, Unité de Physiologie et d’Ecophysiologie des Organismes Aquatiques, Campus Universitaire El Manar II, 2092 Tunis, Tunisia 2 blisher-authenticated version is av Institut National Agronomique de Tunis, Département des Sciences de la Production Animale et de la Pêche, Unité d’écosystèmes et ressources aquatiques, 43 Av. Charles Nicole, 1082 Tunis, Tunisia 3 Ifremer, UMR M100 Physiologie et Ecophysiologie des Mollusques Marins, 29280 Plouzané, France 4 Laboratoire Ifremer de Génétique et Pathologie, 17390 La Tremblade, France *: Corresponding author : S Dridi, email address : [email protected] Abstract: The taxonomy of oysters has been traditionally based on characteristics of the shell. More recently, the analysis of protein and DNA polymorphism has provided a means to overcome difficulties in distinguishing the different species of oysters based solely on shell morphology. In order to identify oysters of the Tunisian north-east coast, we sequenced a 16S rRNA mitochondrial fragment from 68 oysters sampled from the Bizert Lagoon and the Gulf of Hammamet in northern Tunisia. Comparison of oyster 16S rRNA sequences available in GenBank showed the presence of both Ostreola stentina and Crassostrea gigas in our samples, which could not be detected on the basis of shell morphology only.
    [Show full text]
  • Distributionoffi00grey.Pdf
    r a I B R.AR.Y OF THE UNIVERSITY Of ILLINOIS cr> 52)0.5 CO FI 3 v.3G BIOLOGY The person charging this material is re- sponsible for its return on or before the Latest Date stamped below. Theft, and mutilation, underlining of books are reasons for disciplinary action and may result ,n dismissal from the University University of Illinois Library M^a^m UM*^V L161 O-1096 36 .2 THE DISTRIBUTION OF FISHES FOUND BELOW A DEPTH OF 2000 METERS MARION GREY FIELDIANA: ZOOLOGY VOLUME 36, NUMBER 2 Published by CHICAGO NATURAL HISTORY MUSEUM JULY 30, 1956 NAT. HIST. r THE DISTRIBUTION OF FISHES FOUND BELOW A DEPTH OF 2000 METERS MARION GREY Associate, Division of Fishes THE LIBRARY OF THE AUG H 1966 FIELDIANA: ZOOLOGY UHWB8I1Y OF ILLINOIS VOLUME 36, NUMBER 2 Published by CHICAGO NATURAL HISTORY MUSEUM JULY 30, 1956 PRINTED IN THE UNITED STATES OF AMERICA BY CHICAGO NATURAL HISTORY MUSEUM PRESS WD X^ CONTENTS PAGE Introduction 77 Terminology 78 Fishes found below 3660 meters 78 Distinctive character of deep-abyssal fauna 82 Endemism in deep-abyssal waters 83 Endemism of species 84 The bathypelagic fishes 88 Conclusion 92 Note 93 Editorial note 93 Acknowledgments 93 Synonymies and Distribution 94 Scylliorhinidae 94 Squalidae 95 Rajidae 98 Chimaeridae 100 Rhinochimaeridae 101 Alepocephalidae 102 Searsiidae 116 Gonostomatidae 119 Bathylaconidae 127 Harpadontidae 128 Chlorophthalmidae 129 Bathypteroidae 130 Ipnopidae 135 Eurypharyngidae 137 Simenchelyidae 139 Nettastomidae 140 Congridae 142 Ilyophidae 142 Synaphobranchidae 143 Serrivomeridae 148 Nemichthyidae 149 Cyemidae 151 75 76 CONTENTS PAGE Halosauridae 152 Notacanthidae 156 Moridae 158 Gadidae 161 Macrouridae 162 Stephanoberycidae 190 Melamphaidae 191 Acropomatidae(?) 192 Parapercidae 193 Chiasmodontidae 193 Bathydraconidae 194 Zoarcidae C .
    [Show full text]
  • Arteriosclerosis, Thrombosis and Vascular Biology I Peripheral Vascular Disease
    Cardiovascular diseases afflict people of all races, ethnicities, genders, religions, ages, sexual orientations, national origins and disabilities. The American Heart Association is committed to ensuring that our workforce and volunteers reflect the world’s diverse population. We know that such diversity will enrich us with the talent, energy, perspective and inspiration we need to achieve our mission: building healthier lives, free of cardiovascular diseases and stroke. Arteriosclerosis, Thrombosis and Vascular Biology I For information on upcoming Peripheral Vascular Disease American Heart Association Scientific Sessions 2015 Scientific Conferences, Final Program and Abstracts visit my.americanheart.org May 7-9, 2015 | Hilton San Francisco Union Square Hotel | San Francisco, California National Center 7272 Greenville Avenue Dallas, Texas 75231-4596 In Collaboration with the Council on Functional Genomics and Translational Biology and the Society of ©2015, American Heart Association, Inc. Vascular Surgery’s Vascular Research Initiatives Conference. All rights reserved. Unauthorized use prohibited. 4/15JN0222 my.americanheart.org Program at a Glance Wednesday Thursday Friday Saturday May 6, 2015 May 7, 2015 May 8, 2015 May 9, 2015 7:00 AM Registration, Early Registration, Early Continental Career Continental Career Separate registration may be required Breakfast, Training Breakfast, Training for the meetings listed below. Exhbits Session Exhibits Session PROFESSIONAL MEMBERSHIP 7:30 AM 8:00–10:00 8:00–9:30 Registration my.americanheart.org Conference Opening and Plenary Session III 8:00 AM 8:00–6:00 Plenary Session I Highlights from the ATVB VRIC 8:30 AM Functional Genomics: Journal 8:30–10:30 2015 Enhancer Biology and Poster Session and I’m a Member.
    [Show full text]
  • Biomineralization and Global Biogeochemical Cycles Philippe Van Cappellen Faculty of Geosciences, Utrecht University P.O
    1122 Biomineralization and Global Biogeochemical Cycles Philippe Van Cappellen Faculty of Geosciences, Utrecht University P.O. Box 80021 3508 TA Utrecht, The Netherlands INTRODUCTION Biological activity is a dominant force shaping the chemical structure and evolution of the earth surface environment. The presence of an oxygenated atmosphere- hydrosphere surrounding an otherwise highly reducing solid earth is the most striking consequence of the rise of life on earth. Biological evolution and the functioning of ecosystems, in turn, are to a large degree conditioned by geophysical and geological processes. Understanding the interactions between organisms and their abiotic environment, and the resulting coupled evolution of the biosphere and geosphere is a central theme of research in biogeology. Biogeochemists contribute to this understanding by studying the transformations and transport of chemical substrates and products of biological activity in the environment. Biogeochemical cycles provide a general framework in which geochemists organize their knowledge and interpret their data. The cycle of a given element or substance maps out the rates of transformation in, and transport fluxes between, adjoining environmental reservoirs. The temporal and spatial scales of interest dictate the selection of reservoirs and processes included in the cycle. Typically, the need for a detailed representation of biological process rates and ecosystem structure decreases as the spatial and temporal time scales considered increase. Much progress has been made in the development of global-scale models of biogeochemical cycles. Although these models are based on fairly simple representations of the biosphere and hydrosphere, they account for the large-scale changes in the composition, redox state and biological productivity of the earth surface environment that have occurred over geological time.
    [Show full text]
  • Molluscs (Mollusca: Gastropoda, Bivalvia, Polyplacophora)
    Gulf of Mexico Science Volume 34 Article 4 Number 1 Number 1/2 (Combined Issue) 2018 Molluscs (Mollusca: Gastropoda, Bivalvia, Polyplacophora) of Laguna Madre, Tamaulipas, Mexico: Spatial and Temporal Distribution Martha Reguero Universidad Nacional Autónoma de México Andrea Raz-Guzmán Universidad Nacional Autónoma de México DOI: 10.18785/goms.3401.04 Follow this and additional works at: https://aquila.usm.edu/goms Recommended Citation Reguero, M. and A. Raz-Guzmán. 2018. Molluscs (Mollusca: Gastropoda, Bivalvia, Polyplacophora) of Laguna Madre, Tamaulipas, Mexico: Spatial and Temporal Distribution. Gulf of Mexico Science 34 (1). Retrieved from https://aquila.usm.edu/goms/vol34/iss1/4 This Article is brought to you for free and open access by The Aquila Digital Community. It has been accepted for inclusion in Gulf of Mexico Science by an authorized editor of The Aquila Digital Community. For more information, please contact [email protected]. Reguero and Raz-Guzmán: Molluscs (Mollusca: Gastropoda, Bivalvia, Polyplacophora) of Lagu Gulf of Mexico Science, 2018(1), pp. 32–55 Molluscs (Mollusca: Gastropoda, Bivalvia, Polyplacophora) of Laguna Madre, Tamaulipas, Mexico: Spatial and Temporal Distribution MARTHA REGUERO AND ANDREA RAZ-GUZMA´ N Molluscs were collected in Laguna Madre from seagrass beds, macroalgae, and bare substrates with a Renfro beam net and an otter trawl. The species list includes 96 species and 48 families. Six species are dominant (Bittiolum varium, Costoanachis semiplicata, Brachidontes exustus, Crassostrea virginica, Chione cancellata, and Mulinia lateralis) and 25 are commercially important (e.g., Strombus alatus, Busycoarctum coarctatum, Triplofusus giganteus, Anadara transversa, Noetia ponderosa, Brachidontes exustus, Crassostrea virginica, Argopecten irradians, Argopecten gibbus, Chione cancellata, Mercenaria campechiensis, and Rangia flexuosa).
    [Show full text]
  • A Perspective on Underlying Crystal Growth Mechanisms in Biomineralization: Solution Mediated Growth Versus Nanosphere Particle Accretion
    CrystEngComm A perspective on underlying crystal growth mechanisms in biomineralization: solution mediated growth versus nanosphere particle accretion Journal: CrystEngComm Manuscript ID: CE-HIG-07-2014-001474.R1 Article Type: Highlight Date Submitted by the Author: 01-Dec-2014 Complete List of Authors: Gal, Assaf; Weizmann Institute of Science, Structural Biology Weiner, Steve; Weizmann Institute of Science, Structural Biology Addadi, Lia; Weizmann Institute of Science, Structural Biology Page 1 of 23 CrystEngComm A perspective on underlying crystal growth mechanisms in biomineralization: solution mediated growth versus nanosphere particle accretion Assaf Gal, Steve Weiner, and Lia Addadi Department of Structural Biology, Weizmann Institute of Science, Rehovot, Israel 76100 Abstract Many organisms form crystals from transient amorphous precursor phases. In the cases where the precursor phases were imaged, they consist of nanosphere particles. Interestingly, some mature biogenic crystals also have nanosphere particle morphology, but some are characterized by crystallographic faces that are smooth at the nanometer level. There are also biogenic crystals that have both crystallographic faces and nanosphere particle morphology. This highlight presents a working hypothesis, stating that some biomineralization processes involve growth by nanosphere particle accretion, where amorphous nanoparticles are incorporated as such into growing crystals and preserve their morphology upon crystallization. This process produces biogenic crystals with a nanosphere particle morphology. Other biomineralization processes proceed by ion-by-ion growth, and some cases of biological crystal growth involve both processes. We also identify several biomineralization processes which do not seem to fit this working hypothesis. It is our hope that this highlight will inspire studies that will shed more light on the underlying crystallization mechanisms in biology.
    [Show full text]
  • Chitosan-Based Biomimetically Mineralized Composite Materials in Human Hard Tissue Repair
    molecules Review Chitosan-Based Biomimetically Mineralized Composite Materials in Human Hard Tissue Repair Die Hu 1,2 , Qian Ren 1,2, Zhongcheng Li 1,2 and Linglin Zhang 1,2,* 1 State Key Laboratory of Oral Diseases & National Clinical Research Centre for Oral Disease, Sichuan University, Chengdu 610000, China; [email protected] (D.H.); [email protected] (Q.R.); [email protected] (Z.L.) 2 Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610000, China * Correspondence: [email protected] or [email protected]; Tel.: +86-028-8550-3470 Academic Editors: Mohamed Samir Mohyeldin, Katarína Valachová and Tamer M Tamer Received: 16 September 2020; Accepted: 16 October 2020; Published: 19 October 2020 Abstract: Chitosan is a natural, biodegradable cationic polysaccharide, which has a similar chemical structure and similar biological behaviors to the components of the extracellular matrix in the biomineralization process of teeth or bone. Its excellent biocompatibility, biodegradability, and polyelectrolyte action make it a suitable organic template, which, combined with biomimetic mineralization technology, can be used to develop organic-inorganic composite materials for hard tissue repair. In recent years, various chitosan-based biomimetic organic-inorganic composite materials have been applied in the field of bone tissue engineering and enamel or dentin biomimetic repair in different forms (hydrogels, fibers, porous scaffolds, microspheres, etc.), and the inorganic components of the composites are usually biogenic minerals, such as hydroxyapatite, other calcium phosphate phases, or silica. These composites have good mechanical properties, biocompatibility, bioactivity, osteogenic potential, and other biological properties and are thus considered as promising novel materials for repairing the defects of hard tissue.
    [Show full text]
  • Form and Function of F-Actin During Biomineralization Revealed from Live Experiments on Foraminifera
    Form and function of F-actin during biomineralization revealed from live experiments on foraminifera Jarosław Tyszkaa,1, Ulf Bickmeyerb, Markus Raitzschc,d, Jelle Bijmac, Karina Kaczmarekc, Antje Mewesc, Paweł Topae, and Max Jansef aResearch Centre in Kraków, Institute of Geological Sciences, Polish Academy of Sciences, 31-002 Kraków, Poland; bEcological Chemistry, Alfred-Wegener- Institut Helmholtz-Zentrum für Polar- und Meeresforschung, D-27570 Bremerhaven, Germany; cMarine Biogeosciences, Alfred-Wegener-Institut Helmholtz- Zentrum für Polar- und Meeresforschung, D-27570 Bremerhaven, Germany; dInstitut für Mineralogie, Leibniz Universität Hannover, 30167 Hannover, Germany; eDepartment of Computer Science, AGH University of Science and Technology, 30-052, Kraków, Poland; and fBurgers’ Ocean, Royal Burgers’ Zoo, 6816 SH Arnhem, The Netherlands Edited by Lia Addadi, Weizmann Institute of Science, Rehovot, Israel, and approved January 23, 2019 (received for review June 15, 2018) Although the emergence of complex biomineralized forms has Pioneers who studied living foraminifera described that been investigated for over a century, still little is known on how chamber formation was progressing on what they called “active single cells control morphology of skeletal structures, such as matrix” (15, 16). Hottinger (1) suggested that foraminiferal frustules, shells, spicules, or scales. We have run experiments on chamber morphology depended on the length of rhizopodia the shell formation in foraminifera, unicellular, mainly marine (branching pseudopodia) extruded from the previous chamber organisms that can build shells by successive additions of chambers. and supported by microtubular cytoskeleton. Recent investiga- We used live imaging to discover that all stages of chamber/shell tions on theoretical models of foraminiferal morphogenesis implied formation are controlled by dedicated actin-driven pseudopodial structures.
    [Show full text]