A Beginners Guide For Diatom Studies

A Beginners Guide For Diatom Studies PDF

Author: Venkatachalapathy R

Publisher: LAP Lambert Academic Publishing

Published: 2015-06-15

Total Pages: 68

ISBN-13: 9783659741944

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Diatoms are a large and diverse group of single-celled algae. Diatom-based indices are increasingly becoming important tools for assessment of environmental conditions in aquatic systems. Diatoms have long been lauded for their use as powerful and reliable environmental indicators. Diatoms are widely used as assessment tools in the understating / interpretation and management of environments. This guide has been compiled for those who wish to beginner of a study of the diatom taxa of India. It is hoped that this guide may also serve as a valuable aid-memoir for those diatomists involved in inferring a Beginner's guide to diatoms: collection, preparation and identification of diatom. In this manual is intended for those who wish to become familiar with the methods of collecting diatom samples in a meaningful and repeatable approach, whether the outputs from these samples will be used for taxonomy or biodiversity studies or to infer water quality. The application of diatom-based water quality monitoring has become a reality with the recent development of expertise in the fields of diatom taxonomy and ecology in India.

Diatoms

Diatoms PDF

Author: F. E. Round

Publisher: Cambridge University Press

Published: 2007-12-04

Total Pages: 1208

ISBN-13: 1107393132

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This book presents a wide-ranging introduction to the diatoms together with an illustrated description of over 250 genera. Diatoms are important as perhaps the commonest group of autotrophic plants on earth and are abundant in all waters and on soils and moist surfaces. The introduction describes the diatom cell in detail, the structure of the wall (often extremely beautiful in design), the cell contents and aspects of life cycle and cell division. The generic atlas section is the first account of diatom systematics since 1928 (Karsten in Engler and Prantl: Die Nauturlichen Pflanzenfamilien) and each generic description is accompanied by scanning electron micrographs to show the characteristic structure. Most of the latter have been prepared specially for this work from the authors' own collections. The Diatoms will be the standard reference work on the group for years to come and is an essential reference volume.

Diatom Morphogenesis

Diatom Morphogenesis PDF

Author: Vadim V. Annenkov

Publisher: John Wiley & Sons

Published: 2021-11-23

Total Pages: 452

ISBN-13: 1119487951

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DIATOM MORPHOGENESIS A unique book presenting the range of silica structures formed by diatoms, theories and hypotheses of how they are made, and applications to nanotechnology by use or imitation of diatom morphogenesis. There are up to 200,000 species of diatoms, each species of these algal cells bearing an ornate, amorphous silica glass shell. The silica is structured at 7 orders of magnitude size range and is thus the most complex multiscalar solid structure known. Recent research is beginning to unravel how a single cell marshals chemical, physical, biochemical, genetic, and cytoskeletal processes to produce these single-cell marvels. The field of diatom nanotechnology is advancing as this understanding matures. Diatoms have been actively studied over the recent 10-20 years with various modern equipment, experimental and computer simulation approaches, including molecular biology, fluorescence-based methods, electron, confocal, and AFM microscopy. This has resulted in a huge amount of information but the key stages of their silica morphogenesis are still not clear. This is the time to reconsider and consolidate the work performed so far and to understand how we can go ahead. The main objective of this book is to describe the actual situation in the science of diatom morphogenesis, to specify the most important unresolved questions, and to present the corresponding hypotheses. The following areas are discussed: A tutorial chapter, with a glossary for newcomers to the field, who are often from outside of biology, let alone phycology; Diatom Morphogenesis: general issues, including symmetry and size issues; Diatom Morphogenesis: simulation, including analytical and numerical methods for description of the diatom valve shape and pore structure; Diatom Morphogenesis: physiology, biochemistry, and applications, including the relationship between taxonomy and physiology, biosilicification hypotheses, and ideas about applications of diatoms. Audience Researchers, scientists, and graduate students in the fields of phycology, general biology, marine sciences, the chemistry of silica, materials science, and ecology.