BookMirza Hasanuzzaman, Kamrun Nahar, Masayuki Fujita, editors.
Summary: Arsenic is likely the most talked-about metalloid in the modern world because of its toxic effects on both animal and plants. Further, arsenic pollution is now producing negative impacts on food security, especially in many south Asian countries. Since plants are a major food source, their adaptation to As-rich environments is essential, as is being informed about recent findings on multifarious aspects of the mechanisms of arsenic toxicity and tolerance in plants. Although numerous research works and review articles have been published in journals, annual reviews and as book chapters, to date there has been no comprehensive book on this topic. This book contains 19 informative chapters on arsenic chemistry, plant uptake, toxicity and tolerance mechanisms, as well as approaches to mitigation. Readers will be introduced to the latest findings on plant responses to arsenic toxicity, various tolerance mechanisms, and remediation techniques. As such, the book offers a timely and valuable resource for a broad audience, including plant scientists, soil scientists, environmental scientists, agronomists, botanists and molecular biologists.
Contents:
Intro; Preface; Contents; List of Contributors; About the Editors;
Chapter 1: Arsenic Uptake and Transportation in Plants; 1.1 Introduction: Uptake and Transport of Arsenic Depend on Soil Properties and As Species; 1.2 Arsenite and Arsenic Methylated Derivatives; 1.2.1 Uptake and Translocation Systems; 1.2.1.1 NIPs in Arsenic Transport; 1.2.1.2 PIPs in Arsenic Transport; 1.2.1.3 TIPs in Arsenic Transport; 1.2.1.4 Transport Systems for Arsenite and Methylated Derivatives of As Other than AQPs; 1.3 Arsenate Uptake and Its Translocation Systems; 1.4 Concluding Remarks; References 2.4.3.3 Respiration Rate2.4.4 Nutrient and Water Uptake; 2.4.4.1 Micro- and Macronutrient; 2.4.4.2 Water Loss; 2.4.5 Membrane Integrity; 2.4.5.1 Cellular Membrane Damage; 2.4.5.2 Release of Electrolytes; 2.5 Conclusions and Outlook; References;
Chapter 3: Consequences of Paddy Cultivation in Arsenic-Contaminated Paddy Fields of Lower Indo-Gangetic Plain on Arsenic Accumulation Pattern and Selected Grain Quality Traits: A Preliminary Assessment; 3.1 Introduction; 3.1.1 Rice and Economy; 3.1.2 Rice Grain Quality Attributes from Consumer's Prospective 3.1.3 Arsenic Contamination in Rice Agroecosystem3.1.3.1 Consequences of Rice Cultivation in As-Contaminated Agroecosystem; 3.2 Materials and Methods; 3.2.1 Description of Study Sites and Agriculture Practice; 3.2.2 Sample Collection, Soil Physicochemical Properties, and As Content Analysis; 3.2.3 Physicochemical Properties and Cooking Characteristics of Milled Rice; 3.2.4 Data Analysis; 3.3 Results and Discussion; 3.3.1 Physicochemical Properties of As Content in Paddy Field Soil; 3.3.2 As Content in Irrigation Water 3.3.2.1 As Accumulation Pattern in Different Plant Parts of Studied Varieties3.3.2.2 A Correlative Aspect of Grain as Content and Physicochemical Properties of As-Contaminated Paddy Field Soil; 3.3.3 Selected Grain Quality Attributes of Studied Rice Varieties Cultivated in As-Contaminated Paddy Fields; 3.3.4 Statistical Aspect of Grain As Content and Physicochemical Properties and Cooking Characteristics of Non-parboiled Milled Rice; References;
Chapter 4: Arsenic-Induced Oxidative Stress in Plants; 4.1 Introduction; 4.2 Sites and Pathways of ROS Generation in Plants
Chapter 2: Plant Responses to Arsenic Toxicity: Morphology and Physiology2.1 Introduction; 2.2 Uptake and Transport of Arsenic; 2.3 Morphological Effects of Arsenic; 2.4 Physiological Effects of Arsenic; 2.4.1 Growth and Productivity; 2.4.1.1 Root Plasmolysis; 2.4.1.2 Biomass; 2.4.1.3 Cell Division, Elongation, and Expansion; 2.4.2 Photosynthetic System; 2.4.2.1 Chlorophyll Synthesis; 2.4.2.2 CO2 Fixation; 2.4.2.3 Stomatal Conductance; 2.4.2.4 Chloroplast Membrane; 2.4.2.5 Expression of RuBisCO Gene; 2.4.3 ATP Synthesis and Energy Flow; 2.4.3.1 Rate of ATP Synthesis; 2.4.3.2 Energy Flow