26 Result(s)
within
Life Sciences
Joseph Seckbach
Chapter
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Chapter
New classification for the genus Cyanidium Geitler 1933
The taxonomic and systematic chapters (Ott and Seckbach in this volume) gave the following binomials (and where applicable their respective formae) that have been applied at various times throughout the years ...
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A review on the taxonomic position of the algal genus Cyanidium Geitler 1933 and its ecological cohorts Galdieria Merola in Merola et al. 1981 and Cyanidioschyzon De Luca, Taddei and Varano 1978
The alga presently known as Cyanidium caldarium (Tilden 1898a) Geitler 1933 has received a great deal of attention in the last 25 years both from the more classical phycologists who are concerned with phylogeneti...
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The natural history of Cyanidium (Geitler 1933): past and present perspectives
Cyanidium caldarium is an acid hot spring alga which resembles Chlorella in its external morphological appearance. During reproduction, this alga divides into four endospores (while other species...
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Systematic position and phylogenetic status of Cyanidium Geitler 1933
The alga known in the literature as Cyanidium caldarium is an acido-thermophilic organism distributed ubiquitously throughout the world. This alga resembles Chlorella, is unicellular, eukaryotic and exhibits a ra...
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Biological Aspects of the Origin of Life: Open Questions in Eukaryogenesis
The identification of the first organisms is currently not solved. However, it is agreed that the bacterial cells (Prokaryota or Monera) were the pioneering unicellular organisms. These cells were the progenit...
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Chapter and Conference Paper
Is There an Alternative Path in Eukaryogenesis?
The transition from prokaryotic to eukaryotic cells (‘Eukaryogenesis’) is still a biological mystery. The present paper revisits the question of the origin of the eukaryotic cell and suggests that the biochemi...
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A Vista into the Diverse Microbial World: An Introduction to Microbes at the Edge of Life
Our understanding of the biodiversity in the microbial world has recently grown in many aspects. One aspect on which our knowledge has greatly increased is the intriguing field of extremophilic microorganisms ...
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Introduction to Astrobiology: Origin, Evolution, Distribution and Destiny of Life in the Universe
The only life that we know about in the universe is life on our own planet Earth. We have no idea of how representative it might be of life on other planets, although in the chapter by one of us (JCF) it is co...
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Acidophilic Microorganisms
In the last decade great interest has developed concerning microorganisms that live and thrive in extreme environments (Seckbach 1999). These life forms are mainly microbes that survive at extreme high or low ...
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Chapter and Conference Paper
The Relevance of Halophiles and other Extremophiles to Martian and Extraterrestrial Environments
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What do we call life? A Brief Outlook on Life
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Biodiversity and Extremophiles
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Symbioses and Stress: Final comments
In this book we highlight interesting cases of symbioses, in which to certain extent stress effects have been explored. We are aware that the selections do not cover all types of symbioses in which creative in...
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Overview on Cyanidian Biology
Among the members of the red algae are the unicellular Cyanidiophyceae (“cyanidia”), a group that thrives in exceptionally strong acidity (low pH) and at elevated temperatures. The three thermoacidophilic gene...
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Summary, Final Comments and Conclusions
This volume is devoted to the red algae (Rhodophyta) in the genomic age. There has been a demand, with the advance in the biotechnological methods and genomic sequences, for compiling current studies of the rh...
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Summary and Conclusions
This volume encompasses many aspects of microbial mats. Many of the chapters dealt with their description, their geographical distribution, and their environmental properties. They presented the characteristic...
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Symbioses and Stress
The “living together of unlike organisms” in symbiosis implies the confrontation of different physiological properties and ecological preferences. To be successful, organisms in association need to resolve the...
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Summary, Conclusions, and Future Prospects
This COLE volume describes and discusses the interaction of microbes with sediments since the earliest stromatolites were formed on Earth, around 3,500 Ma ago. One of the most significant areas of sedimentary ...
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TheXanthiumGenus
Cockleburs (Xanthiumspp.) are genera of flowering plants in the family of Asteraceae (Compositae), native to the Americas and eastern Asia. The number of species is debatable, ranging from a few to a dozen, and t...
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Summary
The remarkable contributions in the 23 articles by the 49 authors from a dozen different countries, presented in The Diatom World, offer new data on diatoms. This volume celebrates the diatoms’ diversity, emergin...
