The Life Cycle of the Centric Diatom Thalassiosira Weissflogii

The Life Cycle of the Centric Diatom Thalassiosira Weissflogii
Author: Elisabeth Virginia Armbrust
Publisher:
Total Pages: 928
Release: 1990
Genre: Diatoms
ISBN:
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The goal of this research was to understand what factors determine whether a diatom cell can exit the mitotic cell cycle to undergo gametogenesis and subsequent auxospore formation. Using flow cytometry, I found that the centric diatom, Thalassiosira weissflogii, could be induced to undergo spermatogenesis by exposing cells maintained in continuous light to either dim light or darkness. The use of populations representing distinct cell cycle distributions indicated that cells in early G1 could be triggered to form male gametes. Whereas cells further along in their cell cycle were unresponsive to these same cues. The size distributions of numerous isolates maintained under identical conditions were examined over time to determine the relation between cell size and the ability to undergo sexual reproduction. Each isolate underwent periodic increases and decreases in mean cell size as expected for populations alternating between asexual and sexual reproduction. However, the timing of the onset of sexual reproduction, the rate of increase in mean cell size, and the size of the post-auxospores created during a sexual event varied among isolates and within a given isolate over time. This variable behavior was hypothesized to occur because the genetic composition of diatom populations varies over time. Keywords: Medicine.

The Molecular Life of Diatoms

The Molecular Life of Diatoms
Author: Angela Falciatore
Publisher: Springer Nature
Total Pages: 812
Release: 2022-05-11
Genre: Science
ISBN: 3030924998
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Diatoms are the most species rich group of algae, and they contribute about 20% of annual global carbon fixation. They play major roles in ocean food webs and global biogeochemical cycles. They are also a target of the biotechnology industry because of their nano-patterned silica cell wall and high lipid content. Diatoms have received increasing attention as more genomes became available and because of the development of genome editing tools such as the CRISPR/Cas9 technology, which has made diatoms as genetically tractable as well-established biological model species. This book provides an overview on diatom molecular biology. It brings together international leading experts in the field to discuss the latest data and developments from genes to ecosystems. As the understanding of diatoms is currently experiencing a step change, it is critical to allow for synergistic approaches on diverse aspects of diatom biology and evolution. The books offers fundamental insights into the molecular life of diatoms; at the same time new scientific concepts are developed based on the application of the latest molecular tools and genomic information to explore the fascinating lifestyle of diatoms.

Diatoms

Diatoms
Author: Joseph Seckbach
Publisher: John Wiley & Sons
Total Pages: 690
Release: 2019-07-30
Genre: Science
ISBN: 1119370736
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The aim of this new book series (Diatoms: Biology and Applications) is to provide a comprehensive and reliable source of information on diatom biology and applications. The first book of the series, Diatoms Fundamentals & Applications, is wide ranging, starting with the contributions of amateurs and the beauty of diatoms, to details of how their shells are made, how they bend light to their advantage and ours, and major aspects of their biochemistry (photosynthesis and iron metabolism). The book then delves into the ecology of diatoms living in a wide range of habitats, and look at those few that can kill or harm us. The book concludes with a wide range of applications of diatoms, in forensics, manufacturing, medicine, biofuel and agriculture. The contributors are leading international experts on diatoms. This book is for a wide audience researchers, academics, students, and teachers of biology and related disciplines, written to both act as an introduction to diatoms and to present some of the most advanced research on them.

Diatoms

Diatoms
Author: Joseph Seckbach
Publisher: John Wiley & Sons
Total Pages: 657
Release: 2019-07-01
Genre: Science
ISBN: 1119370728
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The aim of this new book series (Diatoms: Biology and Applications) is to provide a comprehensive and reliable source of information on diatom biology and applications. The first book of the series, Diatoms Fundamentals & Applications, is wide ranging, starting with the contributions of amateurs and the beauty of diatoms, to details of how their shells are made, how they bend light to their advantage and ours, and major aspects of their biochemistry (photosynthesis and iron metabolism). The book then delves into the ecology of diatoms living in a wide range of habitats, and look at those few that can kill or harm us. The book concludes with a wide range of applications of diatoms, in forensics, manufacturing, medicine, biofuel and agriculture. The contributors are leading international experts on diatoms. This book is for a wide audience researchers, academics, students, and teachers of biology and related disciplines, written to both act as an introduction to diatoms and to present some of the most advanced research on them.

Cilia and Flagella

Cilia and Flagella
Author:
Publisher: Academic Press
Total Pages: 643
Release: 1995-08-31
Genre: Science
ISBN: 0080859453
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Cilia and Flagella presents protocols accessible to all individuals working with eukaryotic cilia and flagella. These recipes delineate laboratory methods and reagents, as well as critical steps and pitfalls of the procedures. The volume covers the roles of cilia and flagella in cell assembly and motility, the cell cycle, cell-cell recognition and other sensory functions, as well as human diseases and disorders. Students, researchers, professors, and clinicians should find the book's combination of "classic" and innovative techniques essential to the study of cilia and flagella. Key Features* A complete guide containing more than 80 concise technical chapters friendly to both the novice and experienced researcher* Covers protocols for cilia and flagella across systems and species from Chlamydomonas and Euglena to mammals* Both classic and state-of-the-art methods readily adaptable across model systems, and designed to last the test of time, including microscopy, electrophoresis, and PCR* Relevant to clinicians interested in respiratory disease, male infertility, and other syndromes, who need to learn biochemical, molecular, and genetic approaches to studying cilia, flagella, and related structures

The Biology of Diatoms

The Biology of Diatoms
Author: Dietrich Werner
Publisher: Рипол Классик
Total Pages: 507
Release: 1977
Genre: History
ISBN: 5885141460
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Botanical monographs. Volume 13. The Biology of Diatoms.

International Review of Cytology

International Review of Cytology
Author: Kwang W. Jeon
Publisher: Elsevier
Total Pages: 297
Release: 2004-09-28
Genre: Science
ISBN: 0080495648
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International Review of Cytology presents current advances and comprehensive reviews in cell biology – both plant and animal. Authored by some of the foremost scientists in the field, each volume provides up-to-date information and directions for future research. Articles in this volume address transcription in haploid male germ cells, free radicals in cell biology, experimental studies on sexual reproduction in diatoms, vertebrate thymus and the neurotrophin system, and visualization of molecular activities inside living cells with fluorescent labels.

The Diatoms

The Diatoms
Author: John P. Smol
Publisher: Cambridge University Press
Total Pages: 687
Release: 2010-09-30
Genre: Science
ISBN: 1139492624
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This much revised and expanded edition provides a valuable and detailed summary of the many uses of diatoms in a wide range of applications in the environmental and earth sciences. Particular emphasis is placed on the use of diatoms in analysing ecological problems related to climate change, acidification, eutrophication, and other pollution issues. The chapters are divided into sections for easy reference, with separate sections covering indicators in different aquatic environments. A final section explores diatom use in other fields of study such as forensics, oil and gas exploration, nanotechnology, and archaeology. Sixteen new chapters have been added since the first edition, including introductory chapters on diatom biology and the numerical approaches used by diatomists. The extensive glossary has also been expanded and now includes over 1,000 detailed entries, which will help non-specialists to use the book effectively.

Evolution of Primary Producers in the Sea

Evolution of Primary Producers in the Sea
Author: Paul Falkowski
Publisher: Academic Press
Total Pages: 472
Release: 2011-08-31
Genre: Science
ISBN: 0080550517
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Evolution of Primary Producers in the Sea reference examines how photosynthesis evolved on Earth and how phytoplankton evolved through time – ultimately to permit the evolution of complex life, including human beings. The first of its kind, this book provides thorough coverage of key topics, with contributions by leading experts in biophysics, evolutionary biology, micropaleontology, marine ecology, and biogeochemistry.This exciting new book is of interest not only to students and researchers in marine science, but also to evolutionary biologists and ecologists interested in understanding the origins and diversification of life. Evolution of Primary Producers in the Sea offers these students and researchers an understanding of the molecular evolution, phylogeny, fossil record, and environmental processes that collectively permits us to comprehend the rise of phytoplankton and their impact on Earth's ecology and biogeochemistry. It is certain to become the first and best word on this exhilarating topic. Discusses the evolution of phytoplankton in the world's oceans as the first living organisms and the first and basic producers in the earths food chain Includes the latest developments in the evolution and ecology of marine phytoplankton specifically with additional information on marine ecosystems and biogeochemical cycles The only book to consider of the evolution of phytoplankton and its role in molecular evolution, biogeochemistry, paleontology, and oceanographic aspects Written at a level suitable for related reading use in courses on the Evolution of the Biosphere, Ecological and Biological oceanography and marine biology, and Biodiversity