Udviklingsbiologi

This edited book is focusing on the novel and innovative procedures in tissue culture for large scale production of plantation and horticulture crops. It is bringing out a comprehensive collection of information on commercial scale tissue culture with the objective of producing high quality, disease-free and uniform planting material. Developing low cost commercial tissue culture can be one of the best possible way to attain the goal of sustainable agriculture. Tissue culture provides a means for rapid clonal propagation of desired cultivars, and a mechanism for somatic hybridization and in vitro selection of novel genotypes. Application of plant tissue culture technology in horticulture and plantation crops provides an efficient method to improve the quality and nutrition of the crops. This book includes a description of highly efficient, low cost in vitro regeneration protocols of important plantation and horticulture crops with a detailed guideline to establish a commercial plant tissue culture facility including certification, packaging and transportation of plantlets. The book discusses somatic embryogenesis, virus elimination, genetic transformation, protoplast fusion, haploid production, coculture of endophytic fungi, effects of light and ionizing radiation as well as the application of bioreactors. This book is useful for a wide range of readers such as, academicians, students, research scientists, horticulturists, agriculturists, industrial entrepreneurs, and agro-industry employees.  

Sir D'Arcy W. Thompson CB FRS FRSE (1860-1948) was a Scottish biologist, mathematician, and classics scholar. A pioneering mathematical biologist, he is mainly remembered as the author of ON GROWTH AND FORM, an influential work of striking originality and elegance. The central theme of ON GROWTH AND FORM is that biologists of its author's day overemphasized evolution as the fundamental determinant of the form and structure of living organisms, and under-emphasized the roles of physical laws and mechanics. Why do living things and physical phenomena take the form they do? D'Arcy Thompson's classic On Growth and Form looks at the way things grow and the shapes they take. Analysing biological processes in their mathematical and physical aspects, this historic work, first published in 1917, was described by Peter Medawar who was the 1960 Nobel Laureate in Medicine as "the finest work of literature in all the annals of science that have been recorded in the English tongue."

This book aims to comprehensively review the current cell-based strategies under investigation to achieve the regeneration of human hair follicles. The unique capacity of the human hair follicle to self-renew explains why this complex "e;mini-organ"e; has always attracted so much interest as a model for researchers to study stem cell biology and regenerative medicine. The hair follicle is considered a main reservoir of cutaneous stem cells, containing several pools of epithelial, melanocyte, and mesenchymal stem cells involved in hair follicle self-regeneration and pigmentation. In addition, while some of the different follicular cell types contribute to hair shaft growth, others participate in very important interfollicular functions such as dermal remodeling, re-epithelialization after wounding, and cutaneous stem cell homeostasis. The idea of human hair follicle regeneration either "e;de novo"e; or by activating dormant miniaturized follicles is not new, yet still continues to arouse enormous interest in the pursuit of a definitive cure for baldness. In contrast to hair follicle regeneration in mice, the attempts made with human follicles have been disappointing in terms of efficiency. However, recent advances in stem cell biology-as well as the appearance of new technologies like 3D printing-have revived expectations in this field of research. This book is divided into four sections. The first part includes an overview of the strategies used in hair follicle regeneration and a historical summary of the most important achievements to date. Parts two and three comprise the main body of the book, with detailed descriptions of the cells and tissue structures involved in hair follicle regeneration, followed by an elaboration of the different therapeutic strategies, engineering techniques, and a clinician's perspective of stem cell-based therapies in hair loss treatments. Finally, the fourth part reviews the important contribution of the hair follicle in healing cutaneous wounds through the regeneration and remodeling of the dermis and epidermis after injury, as well as wound induced hair follicle neogenesis that occurs when the skin is injured.

This volume brings together classical and cutting-edge protocols on the spatio-temporal study of the cellular subsets constituting the bone and the marrow in both mouse and human. Chapters details methods on bone marrow (BM) ecosystem, to label, sort, analyse, and culture specific cell subsets as well as techniques allowing the evaluation of the function of some of the cellular elements of the BM. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and cutting-edge, Bone Marrow Environment: Methods and Protocols aims to help new investigators to pursue the characterization of the BM microenvironment in the coming years.

This detailed volume presents a variety of animal models that are commonly used to study sepsis and some key procedures to measure specific disease outcomes. The chapters describe well-established surgical and nonsurgical rodent models of sepsis, presented by experts in the field. In addition, the book includes protocols for burn injury and sepsis, modeling the mouse intensive care unit (MICU), and the development of humanized mice, which may be useful tools to increase the translational potential of rodent sepsis research. There is a chapter discussing the use of biomarkers for sepsis diagnosis and prognosis in humans and mice, as well as chapters describing specific methods for biomarker measurement, and the use of analgesics and humane endpoints in rodent sepsis research. Finally, agent-based computational modeling is presented as a valuable complementary approach to study sepsis. Written for the highly successful Methods in Molecular Biology series, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Sepsis: Methods and Protocols serves as an ideal guide for researchers working toward improving the identification and treatment of septic patients.

This book examines the application of stem cell surgery for diabetes and heart failure.Organized into two sections, the first identifies and summarizes the current worldwide stem cell trials for heart failure. Subsequent chapters in part two analyze the current worldwide stem cell trials in patients with Diabetes Mellitus. Both sections utilize studies that include non-expanded stem cells; each study is grouped by stem cell type and geographic location.Stem Cell Surgery Trials in Diabetes and Heart Failure is a comprehensive, convenient reference for cardiologists, endocrinologists, internists, and family physicians. 

This volume looks at in vitro disease models representing the respiratory, hepatobiliary, osteochondral, nervous, dermal, ocular, immune system, and pathological biological processes like tumorigenesis for stem cell research. The chapters in this book cover a range of diseases and application of various stem cells such as adult stem cells and iPS. Chapters also discuss new methods to characterize and manipulate stem cells with the aim to better understand and improve their biological performance. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls.Cutting-edge and thorough, In Vitro Models for Stem Cell Therapy: Methods and Protocols is a valuable resource for researchers and scientists interested in learning more about this exciting field

This book provides detailed protocols for research in plant photomorphogenesis. The collection includes a broad range of topics including assays for shade avoidance responses, assays for light-dependent protein-protein interactions, photobody detection with immunofluorescence and the super-resolution imaging method, protein complex isolation from plants, detection of homodimer and monomer of photoreceptor UVR8 with immunoblotting analysis, assays for seedling greening, procedures for studying skotomorphogenesis, phenotypic study of photomorphogenesis at the seedling stage, expression of Cryptochrome in insect cells, and more. Written for the highly successful Methods in Molecular Biology series, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Plant Photomorphogenesis: Methods and Protocols serves as an ideal guide for researchers and students who are new to the field, as well as a stepping stone for experienced researchers to further their skills in this fast-developing field.

This book presents recent scientific investigations in microbial ecology and systematics. Current research on microorganisms is presented as a perfect book for studies on "Microbial Systematics". This book will serve as an important resource for practising research and review for the scientific community.

Plants are autotrophs and sessile, while animals are heterotrophs and motile. Sessility has imposed on plants 94% hermaphroditism, 23% selfing, 3% polyploidization and 39% clonality, in comparison to < 5% herma-phroditism, < 1% selfing and 2% clonality in motile animals. Whereas plants consist of 374,000 species but 1,664 variety/species, animals comprise 1,543,196 species and 210 variety/species. Hence, plants have undergone variety diversity, while animals have species diversity. In animals and plants, the species ratio is reduced from 4.1 animals : 1.0 plant to 1.4 for pollinating animals : 1.0 pollinated plants. In pollination, animals are benefited dietarily but plants are cross pollinated, generating new gene combinations - the raw material for evolution and speciation. For the reduced species diversity in plants, reasons are traced to 90% hermaphroditism, ~ 23% selfing and 39% clonality. Clonality decreases from 100% in 6-7 tissue typed sponges and 3 tissue typed algae drastically to 0.7% in 60 tissue typed worms but gradually to ~ 23% in 60 tissued typed angiosperms. About 12-15, 5-8 and 77-80% of all animal and plant species are distributed in marine, freshwater and terrestrial habitats, respectively. Animals have conserved the 'right' sequence of gametogenesis but plants have gone through a 'wrong' sequence prior to settling with right one albeit with double fertilization in angiosperms. Both animals and plants are 80% male heterogametics. Only 0.5% of them can afford semelparity. While 20 and 57% angiosperms are perennial trees and herbs, annual herbs make up 23% only. In all of them, 85, > 19 and < 1% are pollinated by fast flying animals, wind and water, respectively. Increasing pollen load enhances fruit- and seed-set. In contrast to animals, the life cycle of plants is direct but complicated. Unlike animals, plants have greatly contributed to weathering of rocks and the atmospheric gas composition during the geological past. From dormant spores and seeds of plants, life can be restored after thousands of years.

This detailed book brings together a new set of protocols to arm cell biologists with techniques that are currently being used in a number of well-established laboratories around the world. The contents represent the great strides made in the field of cell-cell communications with respect to the identification and characterization of key components of the communication apparatus, assembly and maintenance of the communications structures, and concomitantly their roles in not only tissue formation and maintenance but also regeneration and repair. Written for the highly successful Methods in Molecular Biology series, chapters include introductions to their respective chapters, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Stem Cell Renewal and Cell-Cell Communication: Methods and Protocols, Second Edition serves as an ideal guide for experts and newcomers alike seeking to increase our understanding of the crucial biological and physiological roles of cell-cell communications in tissue function and organismal integrity.

This book presents state-of-the-art pre-clinical models and clinical applications of stem-cell-based therapies applied to different lung diseases, with a special focus on the translation of bench data into clinical studies. Starting with the assumption that abnormal lung tissue repair and regeneration has emerged as the driving force underlying pathogenesis and progression in many lung diseases, it sheds new light on the potential of stem/stromal cells as drivers of repair and sources of reparative factors in the lung. The first part of the book offers an overview of stem cell types and mechanisms involved in lung development, homeostasis, repair and regeneration, and reveals the crucial role of the extracellular matrix within the lung microenvironment. In the second part, leading experts present the latest pre-clinical evidence and clinical applications of stem-cell-based therapies in a wide variety of lung diseases, ranging from COPD and lung fibrosis to other rare lung diseases. The last section discusses stem cell delivery systems and devices, such as aerosolised spray application.This book appeals to pneumologists, stem cell and matrix biologists, as well as bioengeneers with a special interest in regenerative medicine applied to pulmonary diseases.