Excerpt from The Structure and Function of Sponge Cells: New Criteria for the Taxonomy of Poecilosclerid Sponges (Demospongiae)
In several cases the fixative employed for museum specimens was unknown. However, whatever the fixative was, these specimens (which are presently pre' served in alcohol) were in acceptable condition for cytological analysis. Thus, older material which is preserved in alcohol for long periods of time is still use ful for the type of analysis carried out here. Iron hematoxylin, pas, and toluidin blue staining can be carried out on this material, even in the absence of knowl edge of the original fixative employed. These stains allow a minimal cytological analysis which can be utilized for comparative purposes.
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Seller: Forgotten Books, London, United Kingdom
Paperback. Condition: New. Print on Demand. This book delves into the intricate world of marine sponges, a group of aquatic animals that have fascinated scientists for centuries. The author challenges traditional approaches to sponge classification, arguing that relying solely on skeletal structures and external features can lead to inaccurate conclusions about their relationships. Instead, the author presents a compelling case for the use of histological and cytological characteristics, particularly a newly defined category of "Special Cell Types," to understand the diversity of these fascinating creatures. The book explores the cellular composition of different sponge species, revealing unique features that distinguish them from one another. Through meticulous observation and detailed descriptions, the author unveils the complexities of sponge development, including the formation of spicules, the hard skeletal elements that provide support and protection. The author's observations on the cellular behavior in the outgrowth region of explants, or sponge fragments grown in a controlled environment, provide fascinating insights into the processes of growth and differentiation. By unveiling the hidden world of sponge cells, the author redefines how we understand these creatures and their classification. This book offers a vital perspective on the complex relationships among species and the need to move beyond simplistic external observations. It is an essential read for anyone interested in the fascinating and often overlooked world of sponge biology. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Seller Inventory # 9781528112833_0
Quantity: Over 20 available
Seller: PBShop.store US, Wood Dale, IL, U.S.A.
PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LX-9781528112833
Seller: PBShop.store UK, Fairford, GLOS, United Kingdom
PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LX-9781528112833
Quantity: 15 available