The Lichen Symbiosis

Not only an invaluable reference to what is known about lichen bionts and their interactions but also a guide to future studies. Compares various aspects of lichen-forming bionts with those of other fungi, algae and cyanobacteria. Features in-depth descriptions of culture methods. Includes over 1000 references representing a selective sampling in such subjects as air pollution, photosynthesis and respiration.

A broad-ranging review of organisms which have long-fascinated biologists, ecologists and chemists.

The Lichens covers the structure and development, physiology of the intact thallus, environmental response and effects, secondary metabolic products, and symbiont interactions of lichens. This book is divided into five parts encompassing 19 chapters. It also includes appendices consist of a taxonomic scheme, methods for isolating and culturing lichen symbionts and thalli, and methods for isolating and identifying lichen substances. The first part of this book describes the original fungal cell and its development into specialized cells of which the various tissues and thalli are composed. This is followed by discussions on sexual reproduction of ascolichens and basidiolichens and on systematic criteria for the definition of taxa in different hierarchical steps. This book also explains the types of propagules produced by lichens and the submicroscopical investigations of lichens, including phycobiont and mycobionts' substructure and symbiotic relationship. The second part of this book examines the physiological aspects of lichens. It includes discussions on metal cation uptake and translocation in vascular plants and on lichens' role in rock weathering and soil formation. This part also studies photosynthetic rates and nitrogen absorption and metabolism by the intact thallus of lichens. Succeeding chapters discuss physiological and morphological responses of lichens to the most important environmental factors and the relationship of these factors to lichen distribution. Substrate preferences of lichens and their causes and implications with regard to the ecology, distribution, and taxonomy of lichens are also examined. This text also discusses lichen thalli growth, methods of measurement, and factors influencing growth. Finally, the concluding parts deal with the biosynthesis of lichen substances, secondary metabolic products, and symbiotic relations of lichens to fungi and algae. This multi-authored book is an ideal source of information for researchers, teachers, and students who wish to broaden their knowledge in the diversity of lichenology.

A radical proposal for how a tiny organism can transform our understanding of human relations Serving as both a guide and companion publication to the conceptual art project of the same name, The Lichen Museum explores how the physiological characteristics of lichens provide a valuable template for reimagining human relations in an age of ecological and social precarity. Channeling between the personal, the scientific, the philosophical, and the poetic, A. Laurie Palmer employs a cross-disciplinary framework that artfully mirrors the collective relations of lichens, imploring us to envision alternative ways of living based on interdependence rather than individualism and competition. Lichens are composite organisms made up of a fungus and an alga or cyanobacteria thriving in a mutually beneficial relationship. The Lichen Museum looks to these complex organisms, remarkable for their symbiosis, diversity, longevity, and adaptability, as models for relations rooted in collaboration and nonhierarchical structures. In their resistance to fast-paced growth and commodification, lichens also offer possibilities for humans to reconfigure their relationship to time and attention outside of the accelerated pace of capitalist accumulation. Drawing together a diverse set of voices, including personal encounters with lichenologists and lichens themselves, Palmer both imagines and embodies a radical new approach to human interconnection. Using this tiny organism as an emblem through which to navigate environmental and social concerns, this work narrows the gap between the human and natural worlds, emphasizing the notion of mutual dependence as a necessary means of survival and prosperity.

Owing to their importance as primary producers of energy and nutrition, algae and cyanobacteria are found as symbiotic partners across diverse lineages of prokaryotic and eukaryotic kingdoms. Algal and Cyanobacteria Symbioses presents a compilation of recent, updated research in fields of diverse symbioses, including in marine, freshwater, and terrestrial habitats. It gives a comprehensive overview of algal and cyanobacteria symbioses, including reviews on their diversity and information on symbiotic specificity and stress tolerance. Also covered is a review of regulatory mechanisms in the communication between symbiotic partners. The highly interdisciplinary character of this book is demonstrated through the range of algae and cyanobacteria as energy-providing symbionts in organismal lineages which are discussed. It is a valuable source of knowledge for researchers, university lecturers, professors and students of biology and life sciences, specifically biochemistry, mycology, cell biology and plant-microbe interactions.