Author: Rui Wang
Publisher: Humana
ISBN: 9781588293497
Category : Medical
Languages : en
Pages : 378
Book Description
Distinguished researchers and clinicians review the biological and biomedical aspects of gasotransmitters, emphasizing signaling transduction mechanisms in general, and ion channel regulation in particular. The authors discuss the endogeneous metabolism and regulation of gasotransmitters, their toxicological profiles and biological actions, and their interactions in terms of their production and effects. The physiological roles of NO, CO, and H2S in the regulation of the cardiovascular, neuronal, and gastrointestinal systems, as well as of cell metabolism, are also reviewed, along with the interaction of the gastrotransmitters with KATP,KCa voltage-gated Ca2+, voltage-gated Na+, and cyclic nucleotide-gated ion channels.
Signal Transduction and the Gasotransmitters
Author: Rui Wang
Publisher: Springer Science & Business Media
ISBN: 1592598064
Category : Medical
Languages : en
Pages : 372
Book Description
Gasotransmitters-principally nitric oxide (NO), carbon monoxide (CO), and hydrogen sulfide (H2S)-are endogenous signaling molecules that play a significant role in the biomedical, clinical, and health sciences, as well as in population health studies. In Signal Transduction and the Gasotransmitters: NO, CO, and H2S in Biology and Medicine, a panel of distinguished researchers and clinicians review the biological and biomedical aspects of gasotransmitters, emphasizing their signaling transduction mechanisms in general, and ion channel regulation in particular. The authors discuss the endogeneous metabolism and regulation of gasotransmitters, their toxicological profiles and biological actions, and their interactions in terms of their production and effects. The physiological roles of NO, CO, and H2S in the regulation of the cardiovascular, neuronal, and gastrointestinal systems, as well as of cell metabolism, are also reviewed, along with the interaction of the gastrotransmitters with KATP,KCa voltage-gated Ca2+, voltage-gated Na+, and cyclic nucleotide-gated ion channels. Included in the array of different mechanisms for the interaction of NO, CO, and H2S are channel phosphorylation, S-nitrosylation, carboxylation, sulfuration, and altered cellular redox status. The authors also offer guidance and suggestions for exploring and further characterizing other still unknown gasotransmitters. Authoritative and comprehensive, Signal Transduction and the Gasotransmitters: NO, CO, and H2S in Biology and Medicine offers clinical scientists and physicians not only a deeper understanding, but also a cutting-edge review, of the critically important field of gasotransmitter biology and medicine.
Publisher: Springer Science & Business Media
ISBN: 1592598064
Category : Medical
Languages : en
Pages : 372
Book Description
Gasotransmitters-principally nitric oxide (NO), carbon monoxide (CO), and hydrogen sulfide (H2S)-are endogenous signaling molecules that play a significant role in the biomedical, clinical, and health sciences, as well as in population health studies. In Signal Transduction and the Gasotransmitters: NO, CO, and H2S in Biology and Medicine, a panel of distinguished researchers and clinicians review the biological and biomedical aspects of gasotransmitters, emphasizing their signaling transduction mechanisms in general, and ion channel regulation in particular. The authors discuss the endogeneous metabolism and regulation of gasotransmitters, their toxicological profiles and biological actions, and their interactions in terms of their production and effects. The physiological roles of NO, CO, and H2S in the regulation of the cardiovascular, neuronal, and gastrointestinal systems, as well as of cell metabolism, are also reviewed, along with the interaction of the gastrotransmitters with KATP,KCa voltage-gated Ca2+, voltage-gated Na+, and cyclic nucleotide-gated ion channels. Included in the array of different mechanisms for the interaction of NO, CO, and H2S are channel phosphorylation, S-nitrosylation, carboxylation, sulfuration, and altered cellular redox status. The authors also offer guidance and suggestions for exploring and further characterizing other still unknown gasotransmitters. Authoritative and comprehensive, Signal Transduction and the Gasotransmitters: NO, CO, and H2S in Biology and Medicine offers clinical scientists and physicians not only a deeper understanding, but also a cutting-edge review, of the critically important field of gasotransmitter biology and medicine.
Neuroscience in the 21st Century
Author: Donald W. Pfaff
Publisher: Springer
ISBN: 9781493934737
Category : Medical
Languages : en
Pages : 0
Book Description
Edited and authored by a wealth of international experts in neuroscience and related disciplines, this key new resource aims to offer medical students and graduate researchers around the world a comprehensive introduction and overview of modern neuroscience. Neuroscience research is certain to prove a vital element in combating mental illness in its various incarnations, a strategic battleground in the future of medicine, as the prevalence of mental disorders is becoming better understood each year. Hundreds of millions of people worldwide are affected by mental, behavioral, neurological and substance use disorders. The World Health Organization estimated in 2002 that 154 million people globally suffer from depression and 25 million people from schizophrenia; 91 million people are affected by alcohol use disorders and 15 million by drug use disorders. A more recent WHO report shows that 50 million people suffer from epilepsy and 24 million from Alzheimer’s and other dementias. Because neuroscience takes the etiology of disease—the complex interplay between biological, psychological, and sociocultural factors—as its object of inquiry, it is increasingly valuable in understanding an array of medical conditions. A recent report by the United States’ Surgeon General cites several such diseases: schizophrenia, bipolar disorder, early-onset depression, autism, attention deficit/ hyperactivity disorder, anorexia nervosa, and panic disorder, among many others. Not only is this volume a boon to those wishing to understand the future of neuroscience, it also aims to encourage the initiation of neuroscience programs in developing countries, featuring as it does an appendix full of advice on how to develop such programs. With broad coverage of both basic science and clinical issues, comprising around 150 chapters from a diversity of international authors and including complementary video components, Neuroscience in the 21st Century in its second edition serves as a comprehensive resource to students and researchers alike.
Publisher: Springer
ISBN: 9781493934737
Category : Medical
Languages : en
Pages : 0
Book Description
Edited and authored by a wealth of international experts in neuroscience and related disciplines, this key new resource aims to offer medical students and graduate researchers around the world a comprehensive introduction and overview of modern neuroscience. Neuroscience research is certain to prove a vital element in combating mental illness in its various incarnations, a strategic battleground in the future of medicine, as the prevalence of mental disorders is becoming better understood each year. Hundreds of millions of people worldwide are affected by mental, behavioral, neurological and substance use disorders. The World Health Organization estimated in 2002 that 154 million people globally suffer from depression and 25 million people from schizophrenia; 91 million people are affected by alcohol use disorders and 15 million by drug use disorders. A more recent WHO report shows that 50 million people suffer from epilepsy and 24 million from Alzheimer’s and other dementias. Because neuroscience takes the etiology of disease—the complex interplay between biological, psychological, and sociocultural factors—as its object of inquiry, it is increasingly valuable in understanding an array of medical conditions. A recent report by the United States’ Surgeon General cites several such diseases: schizophrenia, bipolar disorder, early-onset depression, autism, attention deficit/ hyperactivity disorder, anorexia nervosa, and panic disorder, among many others. Not only is this volume a boon to those wishing to understand the future of neuroscience, it also aims to encourage the initiation of neuroscience programs in developing countries, featuring as it does an appendix full of advice on how to develop such programs. With broad coverage of both basic science and clinical issues, comprising around 150 chapters from a diversity of international authors and including complementary video components, Neuroscience in the 21st Century in its second edition serves as a comprehensive resource to students and researchers alike.
Signal Transduction and the Gasotransmitters
Author: Rui Wang
Publisher: Humana
ISBN: 9781588293497
Category : Medical
Languages : en
Pages : 378
Book Description
Distinguished researchers and clinicians review the biological and biomedical aspects of gasotransmitters, emphasizing signaling transduction mechanisms in general, and ion channel regulation in particular. The authors discuss the endogeneous metabolism and regulation of gasotransmitters, their toxicological profiles and biological actions, and their interactions in terms of their production and effects. The physiological roles of NO, CO, and H2S in the regulation of the cardiovascular, neuronal, and gastrointestinal systems, as well as of cell metabolism, are also reviewed, along with the interaction of the gastrotransmitters with KATP,KCa voltage-gated Ca2+, voltage-gated Na+, and cyclic nucleotide-gated ion channels.
Publisher: Humana
ISBN: 9781588293497
Category : Medical
Languages : en
Pages : 378
Book Description
Distinguished researchers and clinicians review the biological and biomedical aspects of gasotransmitters, emphasizing signaling transduction mechanisms in general, and ion channel regulation in particular. The authors discuss the endogeneous metabolism and regulation of gasotransmitters, their toxicological profiles and biological actions, and their interactions in terms of their production and effects. The physiological roles of NO, CO, and H2S in the regulation of the cardiovascular, neuronal, and gastrointestinal systems, as well as of cell metabolism, are also reviewed, along with the interaction of the gastrotransmitters with KATP,KCa voltage-gated Ca2+, voltage-gated Na+, and cyclic nucleotide-gated ion channels.
Gasotransmitters Signaling in Plants under Challenging Environment
Author: Tariq Aftab
Publisher: Springer Nature
ISBN: 3031430298
Category : Science
Languages : en
Pages : 331
Book Description
Abiotic stressors, such as drought, extreme temperatures, heavy metals, or high salinity, are causing huge crop losses worldwide. These abiotic stressors are expected to become more extreme, less predictable, and more widespread in the near future. The harm of abiotic stresses includes the disruption of cellular redox homeostasis, reactive oxygen species (ROS) production, and oxidative stress in the plant. Plants have different mechanisms to fight stress, and these mechanisms are responsible for maintaining the required homeostasis in plants. Research on gasotransmitters is rapidly expanding and knowledge regarding the potential of gasotransmitters in biology and medicine is accumulating. Over the past few decades, the roles of these signaling molecules, especially NO and H2S, have been extensively studied for their application in plants. Recently, the emissions of endogenous gasotransmitters in plants have been widely studied and analyzed, thereby providing information to facilitate our understanding of new gasotransmitters signaling pathways. Given the multidimensional role of these signaling molecules, research over the past decades in mitigating abiotic stresses in plant biology and from an agriculture point of view, we intend to bring forth a comprehensive volume “Gasotransmitters Signaling in Plants under Challenging Environment". We are hopeful that this comprehensive volume will furnish the requisite of all those who are working or have an interest in the proposed topic
Publisher: Springer Nature
ISBN: 3031430298
Category : Science
Languages : en
Pages : 331
Book Description
Abiotic stressors, such as drought, extreme temperatures, heavy metals, or high salinity, are causing huge crop losses worldwide. These abiotic stressors are expected to become more extreme, less predictable, and more widespread in the near future. The harm of abiotic stresses includes the disruption of cellular redox homeostasis, reactive oxygen species (ROS) production, and oxidative stress in the plant. Plants have different mechanisms to fight stress, and these mechanisms are responsible for maintaining the required homeostasis in plants. Research on gasotransmitters is rapidly expanding and knowledge regarding the potential of gasotransmitters in biology and medicine is accumulating. Over the past few decades, the roles of these signaling molecules, especially NO and H2S, have been extensively studied for their application in plants. Recently, the emissions of endogenous gasotransmitters in plants have been widely studied and analyzed, thereby providing information to facilitate our understanding of new gasotransmitters signaling pathways. Given the multidimensional role of these signaling molecules, research over the past decades in mitigating abiotic stresses in plant biology and from an agriculture point of view, we intend to bring forth a comprehensive volume “Gasotransmitters Signaling in Plants under Challenging Environment". We are hopeful that this comprehensive volume will furnish the requisite of all those who are working or have an interest in the proposed topic
Gasotransmitters Signaling in Plant Abiotic Stress
Author: Mehar Fatma
Publisher: Springer Nature
ISBN: 3031308581
Category : Science
Languages : en
Pages : 230
Book Description
This book deals with the gasotransmitters signaling in redox reactions and homeostasis for the adaptation of plants to unfavorable abiotic stress environments. There are lots of interesting chapters in this book that cover both research and educational objectives. This book serves as a reference illustrated book for all who are interested in the regulation of gasotransmitters and redox homeostasis in agriculture. Maintenance of redox homeostasis strengthens the potentiality of plants to resist abiotic stress conditions through the enhanced antioxidant system and the subsequent impact on other signaling molecules. The book presents novel outcomes and implications in plant biology concerning the study of different types of gasotransmitters signaling such as nitric oxide (NO), ethylene, hydrogen sulfide (H2S), etc. under diverse abiotic stresses in one place. The chapters of the book discuss the recent progress and current perspectives on the role of gasotransmitters relevance to plant functions and adaptations to abiotic stresses, the influence of gasotransmitters on the physiology of plants with respect to abiotic stress tolerance, gasotransmitters and omics for abiotic stress tolerance, advancement in the biology of gasotransmitters in regulating salinity and drought stress response in plants, new insights of gasotransmitters and cellular redox homeostasis in plants and the chapter also deliberate the emerging role of gasotransmitters in regulating redox homeostasis for plant stress management. This book is the first comprehensive book covering all aspects and advancements in the biology of gasotransmitters in redox homeostasis conferring different abiotic stress tolerance, from which readers from all backgrounds can get benefitted. This book will appeal to researchers, students, scientific societies, agriculturists, etc.
Publisher: Springer Nature
ISBN: 3031308581
Category : Science
Languages : en
Pages : 230
Book Description
This book deals with the gasotransmitters signaling in redox reactions and homeostasis for the adaptation of plants to unfavorable abiotic stress environments. There are lots of interesting chapters in this book that cover both research and educational objectives. This book serves as a reference illustrated book for all who are interested in the regulation of gasotransmitters and redox homeostasis in agriculture. Maintenance of redox homeostasis strengthens the potentiality of plants to resist abiotic stress conditions through the enhanced antioxidant system and the subsequent impact on other signaling molecules. The book presents novel outcomes and implications in plant biology concerning the study of different types of gasotransmitters signaling such as nitric oxide (NO), ethylene, hydrogen sulfide (H2S), etc. under diverse abiotic stresses in one place. The chapters of the book discuss the recent progress and current perspectives on the role of gasotransmitters relevance to plant functions and adaptations to abiotic stresses, the influence of gasotransmitters on the physiology of plants with respect to abiotic stress tolerance, gasotransmitters and omics for abiotic stress tolerance, advancement in the biology of gasotransmitters in regulating salinity and drought stress response in plants, new insights of gasotransmitters and cellular redox homeostasis in plants and the chapter also deliberate the emerging role of gasotransmitters in regulating redox homeostasis for plant stress management. This book is the first comprehensive book covering all aspects and advancements in the biology of gasotransmitters in redox homeostasis conferring different abiotic stress tolerance, from which readers from all backgrounds can get benefitted. This book will appeal to researchers, students, scientific societies, agriculturists, etc.
Metallosurfactants
Author: Surinder K. Mehta
Publisher: John Wiley & Sons
ISBN: 3527348689
Category : Science
Languages : en
Pages : 292
Book Description
Metallosurfactants Provides up-to-date coverage of the synthesis, properties, and applications of metallosurfactants Metallosurfactants: From Fundamentals to Catalytic and Biomedical Applications is a thorough introduction to amphiphilic compounds that allow to incorporate metal ions in the surfactant system. This comprehensive reference and guide describes the fundamentals of metal surfactant complexes, highlights recent advances in the field, and explores current and future applications and research areas. Gradually progressing from basic to advanced topics, the authors first explain the classification and characterization of metallosurfactants before delving into more complex concepts and various catalytic, sensing, and biomedical applications. The book begins with coverage of the synthesis of metallosurfactants and their surface, interfacial, and aggregation behavior. Subsequent chapters discuss applications of metallosurfactants in areas such as drug delivery, molecular machines, transfection, nanoparticle synthesis, and carbon monoxide-releasing molecules (CORMs). Other topics include the use of metallosurfactants as catalysts in organic reactions, and as anticancer and antimicrobial agents in drug delivery and formulation. This unique reference Provides an overview of the structure-function relationship, synthesis methods, and characterization of metallosurfactants Reviews current trends in metallosurfactant development and research Examines the use of metallosurfactants in a wide range of reactions, including esterolytic reactions and hydrogen generation Discusses advanced applications of metallosurfactants, e.g. as nanoreactors for nanoparticle synthesis, non-viral transfection vectors, and sensors Metallosurfactants: From Fundamentals to Catalytic and Biomedical Applications is an excellent introduction to the growing field of metallosurfactant chemistry as well as a concise, highly useful reference for researchers and scientists in both academia and industry.
Publisher: John Wiley & Sons
ISBN: 3527348689
Category : Science
Languages : en
Pages : 292
Book Description
Metallosurfactants Provides up-to-date coverage of the synthesis, properties, and applications of metallosurfactants Metallosurfactants: From Fundamentals to Catalytic and Biomedical Applications is a thorough introduction to amphiphilic compounds that allow to incorporate metal ions in the surfactant system. This comprehensive reference and guide describes the fundamentals of metal surfactant complexes, highlights recent advances in the field, and explores current and future applications and research areas. Gradually progressing from basic to advanced topics, the authors first explain the classification and characterization of metallosurfactants before delving into more complex concepts and various catalytic, sensing, and biomedical applications. The book begins with coverage of the synthesis of metallosurfactants and their surface, interfacial, and aggregation behavior. Subsequent chapters discuss applications of metallosurfactants in areas such as drug delivery, molecular machines, transfection, nanoparticle synthesis, and carbon monoxide-releasing molecules (CORMs). Other topics include the use of metallosurfactants as catalysts in organic reactions, and as anticancer and antimicrobial agents in drug delivery and formulation. This unique reference Provides an overview of the structure-function relationship, synthesis methods, and characterization of metallosurfactants Reviews current trends in metallosurfactant development and research Examines the use of metallosurfactants in a wide range of reactions, including esterolytic reactions and hydrogen generation Discusses advanced applications of metallosurfactants, e.g. as nanoreactors for nanoparticle synthesis, non-viral transfection vectors, and sensors Metallosurfactants: From Fundamentals to Catalytic and Biomedical Applications is an excellent introduction to the growing field of metallosurfactant chemistry as well as a concise, highly useful reference for researchers and scientists in both academia and industry.
Signal Transduction in Stomatal Guard Cells
Author: Agepati S Raghavendra
Publisher: Frontiers Media SA
ISBN: 2889451674
Category :
Languages : en
Pages : 107
Book Description
Stomata, the tiny pores on leaf surface, are the gateways for CO2 uptake during photosynthesis as well as water loss in transpiration. Further, plants use stomatal closure as a defensive response, often triggered by elicitors, to prevent the entry of pathogens. The guard cells are popular model systems to study the signalling mechanism in plant cells. The messengers that mediate closure upon perception of elicitors or microbe associated molecular patterns (MAMPs) are quite similar to those during ABA effects. These components include reactive oxygen species (ROS), nitric oxide (NO), cytosolic pH and intracellular Ca2+. The main components are ROS, NO and cytosolic free Ca2+. The list extends to others, such as G-proteins, protein phosphatases, protein kinases, phospholipids and ion channels. The sequence of these signalling components and their interaction during stomatal signalling are complex and quite interesting. The present e-Book provides a set of authoritative articles from ‘Special Research Topic’ on selected areas of stomatal guard cells. In the first set of two articles, an overview of ABA and MAMPs as signals is presented. The next set of 4 articles, emphasize the role of ROS, NO, Ca2+ as well as pH, as secondary messengers. The next group of 3 articles highlight the recent advances on post-translational modification of guard cell proteins, with emphasis on 14-3-3 proteins and MAPK cascades. The last article described the method to isolate epidermis of grass species and monitor stomatal responses to different signals. Our e-Book is a valuable and excellent source of information for all those interested in guard cell function as well as signal transduction in plant cells.
Publisher: Frontiers Media SA
ISBN: 2889451674
Category :
Languages : en
Pages : 107
Book Description
Stomata, the tiny pores on leaf surface, are the gateways for CO2 uptake during photosynthesis as well as water loss in transpiration. Further, plants use stomatal closure as a defensive response, often triggered by elicitors, to prevent the entry of pathogens. The guard cells are popular model systems to study the signalling mechanism in plant cells. The messengers that mediate closure upon perception of elicitors or microbe associated molecular patterns (MAMPs) are quite similar to those during ABA effects. These components include reactive oxygen species (ROS), nitric oxide (NO), cytosolic pH and intracellular Ca2+. The main components are ROS, NO and cytosolic free Ca2+. The list extends to others, such as G-proteins, protein phosphatases, protein kinases, phospholipids and ion channels. The sequence of these signalling components and their interaction during stomatal signalling are complex and quite interesting. The present e-Book provides a set of authoritative articles from ‘Special Research Topic’ on selected areas of stomatal guard cells. In the first set of two articles, an overview of ABA and MAMPs as signals is presented. The next set of 4 articles, emphasize the role of ROS, NO, Ca2+ as well as pH, as secondary messengers. The next group of 3 articles highlight the recent advances on post-translational modification of guard cell proteins, with emphasis on 14-3-3 proteins and MAPK cascades. The last article described the method to isolate epidermis of grass species and monitor stomatal responses to different signals. Our e-Book is a valuable and excellent source of information for all those interested in guard cell function as well as signal transduction in plant cells.
Gasotransmitters
Author: Rui Wang
Publisher: Royal Society of Chemistry
ISBN: 1788014804
Category : Science
Languages : en
Pages : 316
Book Description
Gasotransmitters are gas molecules produced endogenously in prokaryotic and eukaryotic cells for signalling purposes. This book provides, for the first time, a comprehensive description and systematic look at all gasotransmitters, established or proposed, since their detection in 2002. The content and scope covers the production, metabolism, and signalling roles of gasotransmitters. Conceptual advances, scientific discoveries and newly developed techniques described in this book influence our understanding of fundamental molecular and cellular events in biology and medicine. This book serves as the state-of-the-art book for undergraduate and graduate students as well as post-doctoral fellows in biomedical disciplines and toxicologists studying the toxic mechanisms of gasotransmitters in the environment. It will also be welcomed by researchers in university and research institutes, government agencies, pharmaceutical and medical instrument industry, and clinical practice.
Publisher: Royal Society of Chemistry
ISBN: 1788014804
Category : Science
Languages : en
Pages : 316
Book Description
Gasotransmitters are gas molecules produced endogenously in prokaryotic and eukaryotic cells for signalling purposes. This book provides, for the first time, a comprehensive description and systematic look at all gasotransmitters, established or proposed, since their detection in 2002. The content and scope covers the production, metabolism, and signalling roles of gasotransmitters. Conceptual advances, scientific discoveries and newly developed techniques described in this book influence our understanding of fundamental molecular and cellular events in biology and medicine. This book serves as the state-of-the-art book for undergraduate and graduate students as well as post-doctoral fellows in biomedical disciplines and toxicologists studying the toxic mechanisms of gasotransmitters in the environment. It will also be welcomed by researchers in university and research institutes, government agencies, pharmaceutical and medical instrument industry, and clinical practice.
Advances in Metallodrugs
Author: Shahid Ul-Islam
Publisher: John Wiley & Sons
ISBN: 1119640423
Category : Science
Languages : en
Pages : 432
Book Description
This book is organized into 12 important chapters that focus on the progress made by metal-based drugs as anticancer, antibacterial, antiviral, anti-inflammatory, and anti-neurodegenerative agents, as well as highlights the application areas of newly discovered metallodrugs. It can prove beneficial for researchers, investigators and scientists whose work involves inorganic and coordination chemistry, medical science, pharmacy, biotechnology and biomedical engineering.
Publisher: John Wiley & Sons
ISBN: 1119640423
Category : Science
Languages : en
Pages : 432
Book Description
This book is organized into 12 important chapters that focus on the progress made by metal-based drugs as anticancer, antibacterial, antiviral, anti-inflammatory, and anti-neurodegenerative agents, as well as highlights the application areas of newly discovered metallodrugs. It can prove beneficial for researchers, investigators and scientists whose work involves inorganic and coordination chemistry, medical science, pharmacy, biotechnology and biomedical engineering.
Gasotransmitters in Plants
Author: Lorenzo Lamattina
Publisher: Springer
ISBN: 3319407139
Category : Science
Languages : en
Pages : 334
Book Description
This book describes the three gasotransmitters nitric oxide (NO), hydrogen sulphide (H2S) and carbon monoxide (CO) and their function as intracellular signalling molecules in plants. Common properties are shared by NO, H2S and CO: they are beneficial at low concentrations but hazardous in higher amounts; they are small molecules of gas; they can freely cross cell membranes; their effects do not rely on receptors; they are generated enzymatically and their production is regulated; their functions can be mimicked by exogenous application; and their cellular effects may or may not be mediated by second messengers, but have specific cellular and molecular targets. In plants, many aspects of the biology of gasotransmitters remain completely unknown and generate intriguing questions, which will be discussed in this book.
Publisher: Springer
ISBN: 3319407139
Category : Science
Languages : en
Pages : 334
Book Description
This book describes the three gasotransmitters nitric oxide (NO), hydrogen sulphide (H2S) and carbon monoxide (CO) and their function as intracellular signalling molecules in plants. Common properties are shared by NO, H2S and CO: they are beneficial at low concentrations but hazardous in higher amounts; they are small molecules of gas; they can freely cross cell membranes; their effects do not rely on receptors; they are generated enzymatically and their production is regulated; their functions can be mimicked by exogenous application; and their cellular effects may or may not be mediated by second messengers, but have specific cellular and molecular targets. In plants, many aspects of the biology of gasotransmitters remain completely unknown and generate intriguing questions, which will be discussed in this book.