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Flagellar, Cellular and Organismal Polarity in Volvox Carteri
SUNY Geneseo KnightScholar Biology Faculty/Staff Works Department of Biology 1993 Flagellar, cellular and organismal polarity in Volvox carteri Harold J. Hoops SUNY Geneseo Follow this and additional works at: https://knightscholar.geneseo.edu/biology Recommended Citation Hoops H.J. (1993) Flagellar, cellular and organismal polarity in Volvox carteri. Journal of Cell Science 104: 105-117. doi: This Article is brought to you for free and open access by the Department of Biology at KnightScholar. It has been accepted for inclusion in Biology Faculty/Staff Works by an authorized administrator of KnightScholar. For more information, please contact [email protected]. Journal of Cell Science 104, 105-117 (1993) 105 Printed in Great Britain © The Company of Biologists Limited 1993 Flagellar, cellular and organismal polarity in Volvox carteri Harold J. Hoops Department of Biology, 1 Circle Drive, SUNY-Genesco, Genesco, NY 14454, USA SUMMARY It has previously been shown that the flagellar appara- reorientation of flagellar apparatus components. This tus of the mature Volvox carteri somatic cell lacks the reorientation also results in the movement of the eye- 180˚ rotational symmetry typical of most unicellular spot from a position nearer one of the flagellar bases to green algae. This asymmetry has been postulated to be a position approximately equidistant between them. By the result of rotation of each half of the flagellar appa- analogy to Chlamydomonas, the anti side of the V. car - ratus. Here it is shown that V. carteri axonemes contain teri somatic cell faces the spheroid anterior, the syn side polarity markers that are similar to those found in faces the spheroid posterior. -
Algal Sex Determination and the Evolution of Anisogamy James Umen, Susana Coelho
Algal Sex Determination and the Evolution of Anisogamy James Umen, Susana Coelho To cite this version: James Umen, Susana Coelho. Algal Sex Determination and the Evolution of Anisogamy. Annual Review of Microbiology, Annual Reviews, 2019, 73 (1), 10.1146/annurev-micro-020518-120011. hal- 02187088 HAL Id: hal-02187088 https://hal.sorbonne-universite.fr/hal-02187088 Submitted on 17 Jul 2019 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Annu. Rev. Microbiol. 2019. 73:X–X https://doi.org/10.1146/annurev-micro-020518-120011 Copyright © 2019 by Annual Reviews. All rights reserved Umen • Coelho www.annualreviews.org • Algal Sexes and Mating Systems Algal Sex Determination and the Evolution of Anisogamy James Umen1 and Susana Coelho2 1Donald Danforth Plant Science Center, St. Louis, Missouri 63132, USA; email: [email protected] 2Sorbonne Université, UPMC Université Paris 06, CNRS, Algal Genetics Group, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, CS 90074, F-29688, Roscoff, France [**AU: Please write the entire affiliation in French or write it all in English, rather than a combination of English and French**] ; email: [email protected] Abstract Algae are photosynthetic eukaryotes whose taxonomic breadth covers a range of life histories, degrees of cellular and developmental complexity, and diverse patterns of sexual reproduction. -
Plant Life MagillS Encyclopedia of Science
MAGILLS ENCYCLOPEDIA OF SCIENCE PLANT LIFE MAGILLS ENCYCLOPEDIA OF SCIENCE PLANT LIFE Volume 4 Sustainable Forestry–Zygomycetes Indexes Editor Bryan D. Ness, Ph.D. Pacific Union College, Department of Biology Project Editor Christina J. Moose Salem Press, Inc. Pasadena, California Hackensack, New Jersey Editor in Chief: Dawn P. Dawson Managing Editor: Christina J. Moose Photograph Editor: Philip Bader Manuscript Editor: Elizabeth Ferry Slocum Production Editor: Joyce I. Buchea Assistant Editor: Andrea E. Miller Page Design and Graphics: James Hutson Research Supervisor: Jeffry Jensen Layout: William Zimmerman Acquisitions Editor: Mark Rehn Illustrator: Kimberly L. Dawson Kurnizki Copyright © 2003, by Salem Press, Inc. All rights in this book are reserved. No part of this work may be used or reproduced in any manner what- soever or transmitted in any form or by any means, electronic or mechanical, including photocopy,recording, or any information storage and retrieval system, without written permission from the copyright owner except in the case of brief quotations embodied in critical articles and reviews. For information address the publisher, Salem Press, Inc., P.O. Box 50062, Pasadena, California 91115. Some of the updated and revised essays in this work originally appeared in Magill’s Survey of Science: Life Science (1991), Magill’s Survey of Science: Life Science, Supplement (1998), Natural Resources (1998), Encyclopedia of Genetics (1999), Encyclopedia of Environmental Issues (2000), World Geography (2001), and Earth Science (2001). ∞ The paper used in these volumes conforms to the American National Standard for Permanence of Paper for Printed Library Materials, Z39.48-1992 (R1997). Library of Congress Cataloging-in-Publication Data Magill’s encyclopedia of science : plant life / edited by Bryan D. -
Molecular and Phylogenetic Analysis Reveals New Diversity of Dunaliella
Journal of the Marine Molecular and phylogenetic analysis reveals Biological Association of the United Kingdom new diversity of Dunaliella salina from hypersaline environments cambridge.org/mbi Andrea Highfield1 , Angela Ward1, Richard Pipe1 and Declan C. Schroeder1,2,3 1The Marine Biological Association of the United Kingdom, The Laboratory, Citadel Hill, Plymouth PL1 2PB, UK; Original Article 2School of Biological Sciences, University of Reading, Reading RG6 6LA, UK and 3Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, St Paul, MN 55108, USA Cite this article: Highfield A, Ward A, Pipe R, Schroeder DC (2021). Molecular and Abstract phylogenetic analysis reveals new diversity of Dunaliella salina from hypersaline Twelve hyper-β carotene-producing strains of algae assigned to the genus Dunaliella salina environments. Journal of the Marine Biological have been isolated from various hypersaline environments in Israel, South Africa, Namibia Association of the United Kingdom 101,27–37. and Spain. Intron-sizing of the SSU rDNA and phylogenetic analysis of these isolates were https://doi.org/10.1017/S0025315420001319 undertaken using four commonly employed markers for genotyping, LSU rDNA, ITS, rbcL Received: 9 June 2020 and tufA and their application to the study of Dunaliella evaluated. Novel isolates have Revised: 21 December 2020 been identified and phylogenetic analyses have shown the need for clarification on the tax- Accepted: 21 December 2020 onomy of Dunaliella salina. We propose the division of D. salina into four sub-clades as First published online: 22 January 2021 defined by a robust phylogeny based on the concatenation of four genes. This study further Key words: demonstrates the considerable genetic diversity within D. -
New Records for the Turkish Freshwater Algal Flora
Turkish Journal of Water Science & Management Research Article ISSN: 2536 474X / e-ISSN: 2564-7334 Setting Measures for TacklingVolume: 5 Issue: Agricultural 2 Year: 2021 Diffuse Pollution of Küçük Menderes Basin ResearchKüçük Article Menderes Havzası’nda Tarımsal Kaynaklı Yayılı Kirlilikle New Records Mücadelefor the Turkish Tedbirlerinin Freshwater Belirlenmesi Algal Flora in Twenty Five River Basins of Turkey, Part IV: Ochrophyta Ayşegül Tanık1, Asude Hanedar*2, Emine Girgin3, Elçin Güneş2, Erdem Görgün1,3, Nusret Karakaya4, Gökçen Gökdereli5, Burhan Fuat Çankaya 5, Taner Kimence5, Yakup Karaaslan5 1Türkiye’dekiİstanbul Technical University25 Nehir (ITU), Havzasından Faculty of Civil Engineering, Türkiye DepartmentTatlı Su of Alg Environmental Florası İçin YeniEngineering, Kayıtlar, 34469, BölümMaslak-Istanbul/TURKEY IV: Ochrophyta [email protected] (0000-0002-0319-0298) 2 Namk Kemal University,1 Çorlu 2Faculty of Engineeri3 ng, Department of Environmental4 Engineering,5 Nilsun Demir , Burak Öterler , 59860Haşim Çorlu-Sömek Tekirda, Tuğbağ /TurkeyOngun Sevindik *, Elif Neyran Soylu , 6 6 7 1 8 [email protected] Karaaslan , Tolga (0000-0003-4 Çetin , Abuzer827-5954), Çelekli [email protected], Tolga Coşkun , Cüneyt (0000-0002-1457-1504) Nadir Solak , Faruk 3io EnvironmentalMaraşlioğlu Solutions,9, Murat Re şParlakitpaşa1 ,Mah., Merve Katar Koca Cd.1, Doğan Ar Teknokent Can Manavoğlu 1 2/5 D:2 12, 34469 1Ankara University, Faculty of Agriculture,Saryerİstanbul/Turkey Fisheries and Aquaculture Engineering, 06120, [email protected], -
Christensen, Fam. Monadoïdes, Solitaria, Induta, Phycearum
Two new families and some new names and combinations in the Algae Tyge Christensen Universitetets Institut for Sporeplanter, Kobenhavn, Denmark of Danish In a recent survey of algal taxonomy published for the use university author and students, the (1962, 1966) has introduced some new taxa names. A few for. The of them express new systematic opinions, and will be separately accounted have been made for formal and established here majority reasons only, are in accordance with the code of nomenclature. Dunaliellaceae T. Christensen, fam. nov. Cellula monadoïdes, solitaria, nulla membrana vel lorica induta, notas Chloro- phycearum praecipue flagella nuda exhibens. Dunaliella Genus typificum: E. C. Teodoresco 1905, p. 230, Platymonadaceae T. Christensen, fam. nov. membrana Cellula monadoides, solitaria, induta, notas Prasinophycearum praecipue flagella squamis et appendicibus filiformibus crassioribus vestita exhibens. Genus G. typificum: Platymonas S. West 1916, p. 3. In the Chlorophyta the author has followed Chadefaud (1950) in excluding the allies ofPrasinocladus from and them the the Chlorophyceae placing in a separate class, Prasino- Such of former the phyceae. separation entails a splitting two Chlorophycean families, Polyblepharidaceae comprising naked monads, and the Chlamydomonadaceae comprising similar forms with cell wall. which is the of the former provided a Polyblepharides, type has been studied but the Prasinocladus family, not yet adequately probably represents assumed that the should be type as by Chadefaud, so family name Polyblepharidaceae applied to naked forms placed in thePrasinophyceae. Chlamydomonas, on the other hand, shows a typical Chlorophycean construction. The family name Chlamydomonadaceae, forms therefore, must be applied to walled remaining in the Chlorophyceae. For previous the and for members of Polyblepharidaceae now left behind in the Chlorophyceae, previous members of the Chlamydomonadaceae now placed in the Prasinophyceae, new family names have been introduced in the Danish text. -
Elucidating Molecular Mechanism of Antiglycation
ELUCIDATING MOLECULAR PROTEOMIC PROFILING OF DUNALIELLA MECHANISM OF ANTIGLYCATION SP. FOR IDENTIFICATION OF SALT COMPOUNDS BY PROTEOMIC TOLERANT GENES APPROACHES THESIS SUBMITTED TO THESIS SUBMITTED SAVITRIBAI PHULE PUNE UNIVERSITY TO SAVITRIBAI PHULE PUNE UNIVERSITY FOR THE DEGREE OF FOR THE DEGREE DOCTOR OF PHILOSOPHY OF DOCTOR OF PHILOSOPHY IN BIOTECHNOLOGY IN BIOTECHNOLOGY BY MRS. B. SANTHAKUMARI BY MR. SANDEEP BALWANTRAO GOLEGAONKAR UNDER THE GUIDANCE OF DR. MAHESH J. KULKARNI BIOCHEMICAL SCIENCES DIVISION CSIR-NATIONALBIOCHEMICAL SCIENCES CHEMICAL /CMC LABORATORY DIVISION CSIR-NATIONALPUNE CHEMICAL- 411 008, INDIA. LABORATORY PUNEOCTOBER2014 - 411 008, INDIA. JUNE 2015 Dr. Mahesh J. Kulkarni +91 20 2590 2541 Scientist, [email protected] Biochemical Sciences Division, CSIR-National Chemical Laboratory, Pune-411 008. CERTIFICATE This is to certify that the work presented in the thesis entitled “Proteomic profiling of Dunaliella sp. for identification of salt tolerant genes” submitted by Mrs. B. Santhakumari, was carried out by the candidate at CSIR-National Chemical Laboratory, Pune, under my supervision. Such materials as obtained from other sources have been duly acknowledged in the thesis. Date: Dr. Mahesh J. Kulkarni Place: (Research Supervisor) CANDIDATE’S DECLARATION I hereby declare that the thesis entitled “Proteomic Profiling of Dunaliella sp. for identification of salt tolerant genes” submitted for the award of the degree of Doctor of Philosophy in Biotechnology to the ‘SavitribaiPhule Pune University’ has not been submitted by me to any other university or institution. This work was carried out by me at CSIR-National Chemical Laboratory, Pune, India. Such materials as obtained from other sources have been duly acknowledged in the thesis. -
Gêneros Closterium Nitzsh Ex Ralfs E Cosmarium Corda Ex Ralfs Em Dois Lagos Artificiais Urbanos No Município De Ituiutaba, Mg
GÊNEROS CLOSTERIUM NITZSH EX RALFS E COSMARIUM CORDA EX RALFS EM DOIS LAGOS ARTIFICIAIS URBANOS NO MUNICÍPIO DE ITUIUTABA, MG LUCIANE MARIA NOGUEIRA Universidade Federal de Uberlândia | Brasil [email protected] LUCAS MATHEUS DA ROCHA Universidade Federal de Uberlândia | Brasil [email protected] RESUMO: O objetivo deste trabalho foi de obter conhecimento dos táxons de Closterium Nitzsh ex Ralfs e Cosmarium Corda ex Ralfs em dois lagos artificiais, localizado no município de Ituiutaba, MG. As coletas foram feitas mensalmente, durante seis meses e foram obtidas através do auxílio da rede de plâncton 20µm e a retirada de amostras em diferentes tipos de substratos submersos na região litorânea dos lagos. Após, foram depositadas em frascos plásticos e armazenadas sobrefrigeração. Foram identificadas quatro espécies para o gênero Closterium com destaque para a espécie Closterium moniliferum (Bory) Ehrenberg ex Ralfs (Bory); e dez espécies identificadas para o gênero Cosmarium com ênfase na espécie Cosmarium denticulatum Borge, Bih. A natureza do substrato foi preferencialmente epifítica, associado à macrófita aquática Eichhornia spp. Este levantamento taxonômico contribui para ampliação do conhecimento quanto à diversidade dos gêneros estudados para a região do Triângulo Mineiro. Palavras-chaves:microalgas; epifíticas; taxonomia; Triângulo Mineiro. THE GENERA CLOSTERIUM NITZSH RALFS EX AND EX RALFS AND COSMARIUM CORDA IN TWO URBAN ARTIFICIAL LAKES IN ITUIUTABA MUNICIPALITY, MG ABSTRACT: The aim of this study was to increase knowledge of the Closterium Nitzsh ex Ralfs and Cosmarium Corda ex Ralfs taxa in two artificial lakes, located in the city of Ituiutaba, MG. The collections were made monthly for six months and were obtained through the help of plankton net 20μm and sampling of different types of substrates immersed in the shore region of the lakes. -
Ultrastructural Studies of Microalgae
Ultrastructural Studies of Microalgae Alanoud Jaber Rawdhan A thesis submitted for the degree of Doctor of Philosophy (Integrated) October, 2015 School of Agriculture, Food and Rural Development, Newcastle University Newcastle upon Tyne, UK Abstract Ultrastructural Studies of Microalgae The optimization of fixation protocols was undertaken for Dunaliella salina, Nannochloropsis oculata and Pseudostaurosira trainorii to investigate two different aspects of microalgal biology. The first was to evaluate the effects of the infochemical 2, 4- decadienal as a potential lipid inducer in two promising lipid-producing species, Dunaliella salina and Nannochloropsis oculata, for biofuel production. D. salina fixed well using 1% glutaraldehyde in 0.5 M cacodylate buffer prepared in F/2 medium followed by secondary fixation with 1% osmium tetroxide. N. oculata fixed better with combined osmium- glutaraldehyde prepared in sea water and sucrose. A stereological measuring technique was used to compare lipid volume fractions in D. salina cells treated with 0, 2.5, and 50 µM and N. oculata treated with 0, 1, 10, and 50 µM with the lipid volume fraction of naturally senescent (stationary) cultures. There were significant increases in the volume fractions of lipid bodies in both D. salina (0.72%) and N. oculata (3.4%) decadienal-treated cells. However, the volume fractions of lipid bodies of the stationary phase cells were 7.1% for D. salina and 28% for N. oculata. Therefore, decadienal would not be a suitable lipid inducer for a cost-effective biofuel plant. Moreover, cells treated with the highest concentration of decadienal showed signs of programmed cell death. This would affect biomass accumulation in the biofuel plant, thus further reducing cost effectiveness. -
Effects of Phosphorus on the Growth and Chlorophyll Fluorescence of A
Journal of Biological Research 2016; volume 89:5866 Effects of phosphorus on the growth and chlorophyll fluorescence of a Dunaliella salina strain isolated from saline soil under nitrate limitation Tassnapa Wongsnansilp,1 Niran Juntawong,2 Zhe Wu1,3 1Interdisciplinary Graduate Program in Bioscience, Faculty of Science, Kasetsart University, Bangkok; 2Department of Botany, Kasetsart University, Thailand; 3Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences, Plan Genetic Engineering Center of Hebei Province, China chlorophyll and beta-carotene content, retarded the decrease of Fv/Fm Abstract value. The optimal phosphate concentration for the growth of D. salina KU XI was above 72.6 µM. The maximum biomass and beta-carotene -1 -1 An isolated Dunaliella salina (D. salina) KU XI from saline soils in were 0.24 g L and 17.4 mg L respectively when NaH2PO4 was 290.4 northeastern Thailand was cultured in f/2 medium in column photo- µM. The algae growth was restrained by phosphate or nitrate when bioreactor. The variations of the growth, chlorophyll and beta-carotene NaH2PO4 below 12.1 µM or above 72.6 µM. It indicated that properly sup- content and the maximum quantum yield of PS II photochemistry plementing nitrate in the late growth stage with high phosphate concen- (Fv/Fm) under different NaH2PO4 concentrations were studied. Based on tration was favored for enhancing the growth and biomass production. the results, the growth kinetics of D. salina KU XI was established, only which could simulate the algae growth rate under different phosphate concentrations and temperatures. The phosphorus could significantly affect the growth and pigments accumulations of this isolated strain. -
Chlamydomonas Schloesseri Sp. Nov. (Chlamydophyceae, Chlorophyta) Revealed by Morphology, Autolysin Cross Experiments, and Multiple Gene Analyses
Phytotaxa 362 (1): 021–038 ISSN 1179-3155 (print edition) http://www.mapress.com/j/pt/ PHYTOTAXA Copyright © 2018 Magnolia Press Article ISSN 1179-3163 (online edition) https://doi.org/10.11646/phytotaxa.362.1.2 Chlamydomonas schloesseri sp. nov. (Chlamydophyceae, Chlorophyta) revealed by morphology, autolysin cross experiments, and multiple gene analyses THOMAS PRÖSCHOLD1, TATYANA DARIENKO2,3, LOTHAR KRIENITZ4 & ANNETTE W. COLEMAN5 1 University of Innsbruck, Research Department for Limnology, A-5310 Mondsee, Austria 2 University of Göttingen, Experimental Phycology and Culture Collection of Algae, D-37073 Göttingen, Germany 3 M.G. Kholodny Institute of Botany, National Academy Science of Ukraine, Kyiv 01601, Ukraine 4 Leibniz Institute of Freshwater Ecology and Inland Fisheries, Department of Limnology of Stratified Lakes, D-16775 Stechlin-Neu- globsow, Germany 5 Brown University, Division of Biology and Medicine, Providence RI-02912, USA Correspondence: Thomas Pröschold, E-mail: [email protected] Abstract Chlamydomonas in the traditional sense is one of the largest green algal genera, comprising more than 500 described species. However, since the designation of the model organism C. reinhardtii as conserved type of this genus in 2007, only two spe- cies remained in Chlamydomonas. Investigations of three new strains isolated from soil samples, which were collected near Lake Nakuru (Kenya), demonstrated that the isolates represent a new species of Chlamydomonas. Phylogenetic analyses of nuclear SSU and ITS rDNA and plastid-coding rbcL sequences have clearly revealed that this species is closely related to C. reinhardtii and C. incerta. These results were confirmed by cross experiments of sporangium wall autolysins (VLE). All species belonged to the VLE group 1 sensu Schlösser. -
Structural Variation and Evolution of Chloroplast Trnas in Green Algae
Structural variation and evolution of chloroplast tRNAs in green algae Fangbing Qi, Yajing Zhao, Ningbo Zhao, Kai Wang, Zhonghu Li and Yingjuan Wang State Key Laboratory of Biotechnology of Shannxi Province, Key Laboratory of Resource Biology and Biotech- nology in Western China (Ministry of Education), College of Life Science, Northwest University, Xi'an, China ABSTRACT As one of the important groups of the core Chlorophyta (Green algae), Chlorophyceae plays an important role in the evolution of plants. As a carrier of amino acids, tRNA plays an indispensable role in life activities. However, the structural variation of chloroplast tRNA and its evolutionary characteristics in Chlorophyta species have not been well studied. In this study, we analyzed the chloroplast genome tRNAs of 14 species in five categories in the green algae. We found that the number of chloroplasts tRNAs of Chlorophyceae is maintained between 28–32, and the length of the gene sequence ranges from 71 nt to 91 nt. There are 23–27 anticodon types of tRNAs, and some tRNAs have missing anticodons that are compensated for by other types of anticodons of that tRNA. In addition, three tRNAs were found to contain introns in the anti-codon loop of the tRNA, but the analysis scored poorly and it is presumed that these introns are not functional. After multiple sequence alignment, the 9-loop is the most conserved structural unit in the tRNA secondary structure, containing mostly U-U-C-x-A-x-U conserved sequences. The number of transitions in tRNA is higher than the number of transversions. In the replication loss analysis, it was found that green algal chloroplast tRNAs may have undergone substantial gene loss during the course of evolution.