Stress Ecology

Stress Ecology PDF Author: Christian E.W. Steinberg
Publisher: Springer Science & Business Media
ISBN: 9789400720725
Category : Science
Languages : en
Pages : 480

Get Book

Book Description
Not all stress is stressful; instead, it appears that stress in the environment, below the mutation threshold, is essential for many subtle manifestations of population structures and biodiversity, and has played a substantial role in the evolution of life. Intrigued by the behavior of laboratory animals that contradicted our current understanding of stress, the author and his group studied the beneficial effects of stress on animals and plants. The seemingly “crazy” animals demonstrated that several stress paradigms are outdated and have to be reconsidered. The book describes the general stress responses in microorganisms, plants, and animals to abiotic and biotic, to natural and anthropogenic stressors. These stress responses include the activation of oxygen, the biotransformation system, the stress proteins, and the metal-binding proteins. The potential of stress response lies in the transcription of genes, whereas the actual response is manifested by proteins and metabolites. Yet, not all stress responses are in the genes: micro-RNAs and epigenetics play central roles. Multiple stressors, such as environmental realism, do not always act additively; they may even diminish one another. Furthermore, one stressor often prepares the subject for the next one to come and may produce extended lifespans and increased offspring numbers, thus causing shifts in population structures. This book provides the first comprehensive analysis of the ecological and evolutionary effects of stress.

Plant Performance Under Environmental Stress

Plant Performance Under Environmental Stress PDF Author: Azamal Husen
Publisher: Springer Nature
ISBN: 3030785211
Category : Science
Languages : en
Pages : 604

Get Book

Book Description
Global climate change is bound to create a number of abiotic and biotic stresses in the environment, which would affect the overall growth and productivity of plants. Like other living beings, plants have the ability to protect themselves by evolving various mechanisms against stresses, despite being sessile in nature. They manage to withstand extremes of temperature, drought, flooding, salinity, heavy metals, atmospheric pollution, toxic chemicals and a variety of living organisms, especially viruses, bacteria, fungi, nematodes, insects and arachnids and weeds. Incidence of abiotic stresses may alter the plant-pest interactions by enhancing susceptibility of plants to pathogenic organisms. These interactions often change plant response to abiotic stresses. Plant growth regulators modulate plant responses to biotic and abiotic stresses, and regulate their growth and developmental cascades. A number of physiological and molecular processes that act together in a complex regulatory network, further manage these responses. Crosstalk between autophagy and hormones also occurs to develop tolerance in plants towards multiple abiotic stresses. Similarly, biostimulants, in combination with correct agronomic practices, have shown beneficial effects on plant metabolism due to the hormonal activity that stimulates different metabolic pathways. At the same time, they reduce the use of agrochemicals and impart tolerance to biotic and abiotic stress. Further, the use of bio- and nano-fertilizers seem to hold promise to improve the nutrient use efficiency and hence the plant yield under stressful environments. It has also been shown that the seed priming agents impart stress tolerance. Additionally, tolerance or resistance to stress may also be induced by using specific chemical compounds such as polyamines, proline, glycine betaine, hydrogen sulfide, silicon, β-aminobutyric acid, γ-aminobutyric acid and so on. This book discusses the advances in plant performance under stressful conditions. It should be very useful to graduate students, researchers, and scientists in the fields of botanical science, crop science, agriculture, horticulture, ecological and environmental science.

Environmental Stress

Environmental Stress PDF Author: Gary W. Evans
Publisher: CUP Archive
ISBN: 9780521318594
Category : Medical
Languages : en
Pages : 404

Get Book

Book Description
A systematic 1982 on human reactions to five environmental stress factors.

Stress Ecology

Stress Ecology PDF Author: Christian E.W. Steinberg
Publisher: Springer Science & Business Media
ISBN: 9789400720725
Category : Science
Languages : en
Pages : 480

Get Book

Book Description
Not all stress is stressful; instead, it appears that stress in the environment, below the mutation threshold, is essential for many subtle manifestations of population structures and biodiversity, and has played a substantial role in the evolution of life. Intrigued by the behavior of laboratory animals that contradicted our current understanding of stress, the author and his group studied the beneficial effects of stress on animals and plants. The seemingly “crazy” animals demonstrated that several stress paradigms are outdated and have to be reconsidered. The book describes the general stress responses in microorganisms, plants, and animals to abiotic and biotic, to natural and anthropogenic stressors. These stress responses include the activation of oxygen, the biotransformation system, the stress proteins, and the metal-binding proteins. The potential of stress response lies in the transcription of genes, whereas the actual response is manifested by proteins and metabolites. Yet, not all stress responses are in the genes: micro-RNAs and epigenetics play central roles. Multiple stressors, such as environmental realism, do not always act additively; they may even diminish one another. Furthermore, one stressor often prepares the subject for the next one to come and may produce extended lifespans and increased offspring numbers, thus causing shifts in population structures. This book provides the first comprehensive analysis of the ecological and evolutionary effects of stress.

Photosynthesis, Productivity, and Environmental Stress

Photosynthesis, Productivity, and Environmental Stress PDF Author: Parvaiz Ahmad
Publisher: John Wiley & Sons
ISBN: 1119501822
Category : Science
Languages : en
Pages : 425

Get Book

Book Description
A guide to environmental fluctuations that examines photosynthesis under both controlled and stressed conditions Photosynthesis, Productivity and Environmental Stress is a much-needed guide that explores the topics related to photosynthesis (both terrestrial and aquatic) and puts the focus on the basic effect of environmental fluctuations. The authors—noted experts on the topic—discuss photosynthesis under both controlled and stressed conditions and review new techniques for mitigating stressors including methods such as transgeneics, proteomics, genomics, ionomics, metabolomics, micromics, and more. In order to feed our burgeoning world population, it is vital that we must increase food production. Photosynthesis is directly related to plant growth and crop production and any fluctuation in the photosynthetic activity imposes great threat to crop productivity. Due to the environmental fluctuations plants are often exposed to the different environmental stresses that cause decreased photosynthetic rate and problems in the plant growth and development. This important book addresses this topic and: Covers topics related to terrestrial and aquatic photosynthesis Highlights the basic effect of environmental fluctuations Explores common stressors such as drought, salinity, alkalinity, temperature, UV-radiations, oxygen deficiency, and more Contains methods and techniques for improving photosynthetic efficiency for greater crop yield Written for biologists and environmentalists, Photosynthesis, Productivity and Environmental Stress offers an overview of the stressors affecting photosynthesis and includes possible solutions for improved crop production.

Behavior, Health, and Environmental Stress

Behavior, Health, and Environmental Stress PDF Author: Sheldon Cohen
Publisher: Springer Science & Business Media
ISBN: 1475793804
Category : Psychology
Languages : en
Pages : 288

Get Book

Book Description
Eight years ago, four psychologists with varying backgrounds but a common in terest in the impact of environmental stress on behavior and health met to plan a study of the effects of aircraft noise on children. The impetus for the study was an article in the Los Angeles Times about architectural interventions that were planned for several noise-impacted schools under the air corridor of Los Angeles Interna tional Airport. These interventions created an opportunity to study the same chil dren during noise exposure and then later after the exposure had been attenuated. The study was designed to test the generality of several noise effects that had been well established in laboratory experimental studies. It focused on three areas: the relationship between noise and personal control, noise and attention, and noise and cardiovascular response. Two years later, a second study, designed to replicate and extend findings from the first, was conducted.

Environmental Stress in Plants

Environmental Stress in Plants PDF Author: Joe H. Cherry
Publisher: Springer Science & Business Media
ISBN: 3642731635
Category : Technology & Engineering
Languages : en
Pages : 360

Get Book

Book Description
Environmental stresses represent the most limiting factors to agricultural productivity worldwide. Their impact is not only on presently cultivated crops, they are also significant barriers to the introduction of crop plants in noncultivated areas. A significant global problem in the improvement of agriculture is the major variation in annual crop yields due to variations in environmental stresses such as drought, flooding, salinity, and temperature variations. This summary presents current background and research knowledge on all important environmental stresses and their respective influence on plant growth, development and crop yield as well as on biochemical and physiological events within plant tissues in reaction to changing environmental conditions.

Losing Ground

Losing Ground PDF Author: Erik P. Eckholm
Publisher: W. W. Norton
ISBN: 9780393091670
Category : Political Science
Languages : en
Pages : 223

Get Book

Book Description
Current discussion of the environmental crisis often centers on the pollution problems of the industrial world. The author calls for massive tree-planting campaigns, agricultural reforms to benefit peasant farmers, and a slowdown in world population growth. He predicts that, unless there is a major shift in global political priorities, a third of mankind will become mired in hopeless destitution, a tragedy with ominous implications for world order.

Plant Metabolites under Environmental Stress

Plant Metabolites under Environmental Stress PDF Author: Nivas M. Desai
Publisher: CRC Press
ISBN: 1000613550
Category : Science
Languages : en
Pages : 333

Get Book

Book Description
This new volume provides a timely update on the knowledge of plant responses to various environmental stresses such as salinity, waterlogging, drought, pollution, heat, temperature, oxidative stress, and mineral deficiencies. Chapters focus on physiological and biochemical mechanisms identified in plants that are crucial for them to adapt to biotic and abiotic stress and the methods for improving plant tolerance mechanisms. The book also throws light on plant secondary metabolites such as phenolic compounds and plant growth regulators in ameliorating the stressful conditions in plants. The scientific knowledge and expertise presented in this volume will be valuable to agronomists, plant physiologists, horticulturists, research scholars of botany and agriculture science, and academicians of plant sciences as well as students in these areas.

Mechanisms of Environmental Stress Resistance in Plants

Mechanisms of Environmental Stress Resistance in Plants PDF Author: Amarjit S. Basra
Publisher: Taylor & Francis
ISBN: 1351432419
Category : Science
Languages : en
Pages : 422

Get Book

Book Description
Plant growth and productivity are limited in many areas of the world by a wide variety of environmental stresses. This book discusses progress made toward the major goal of uncovering the plant resistance mechanisms to biotic and abiotic stresses; the purpose being to utilise this knowledge in genetic modification of plants for achieving improved stress resistance. This volume achieves a new synthesis in considering the mechanisms of resistance at various levels of organisation -- from individual cells and tissues, through whole plants, to communities. Chapters are written by internationally acknowledged experts, who have a wealth of research and teaching experience. With comprehensive and up-to-date coverage, this book analyses many outstanding problems and poses important questions for future research.

Feasibility of Introducing Food Crops Better Adapted to Environmental Stress

Feasibility of Introducing Food Crops Better Adapted to Environmental Stress PDF Author: Soil and Land Use Technology, Inc
Publisher:
ISBN:
Category : Crops and climate
Languages : en
Pages : 340

Get Book

Book Description