Useful Links
Biology
Plant Science (Botany)
Plant Physiology
1. Introduction to Plant Physiology
2. Plant Cell Structure and Function
3. Plant Tissues and Organ Systems
4. Water Relations and Transport
5. Plant Mineral Nutrition
6. Photosynthesis
7. Respiration and Energy Metabolism
8. Phloem Transport and Translocation
9. Plant Growth and Development
10. Plant Hormones and Signaling
11. Environmental Responses
Plant Mineral Nutrition
Essential Nutrients
Criteria for Essentiality
Direct Involvement in Metabolism
Deficiency Symptoms
Irreplaceable Function
Nutrient Classification
Macronutrients vs Micronutrients
Mobile vs Immobile Nutrients
Structural vs Catalytic Functions
Macronutrients
Nitrogen
Chemical Forms
Nitrate
Ammonium
Organic Nitrogen
Functions in Plants
Protein Synthesis
Nucleic Acid Formation
Chlorophyll Structure
Deficiency Symptoms
Chlorosis
Stunted Growth
Reduced Protein Content
Uptake and Assimilation
Phosphorus
Chemical Forms
Phosphate
Organic Phosphorus
Functions in Plants
Energy Transfer
Nucleic Acid Structure
Membrane Components
Deficiency Symptoms
Purple Coloration
Delayed Maturity
Poor Root Development
Uptake and Metabolism
Potassium
Chemical Forms
Potassium Ion
Functions in Plants
Enzyme Activation
Osmotic Regulation
Stomatal Function
Deficiency Symptoms
Marginal Leaf Burn
Weak Stems
Poor Disease Resistance
Transport and Distribution
Calcium
Chemical Forms
Calcium Ion
Functions in Plants
Cell Wall Structure
Membrane Stability
Signal Transduction
Deficiency Symptoms
Tip Burn
Blossom End Rot
Poor Root Growth
Uptake and Transport
Magnesium
Chemical Forms
Magnesium Ion
Functions in Plants
Chlorophyll Structure
Enzyme Activation
Ribosome Structure
Deficiency Symptoms
Interveinal Chlorosis
Premature Leaf Drop
Mobility and Redistribution
Sulfur
Chemical Forms
Sulfate
Organic Sulfur
Functions in Plants
Protein Structure
Enzyme Function
Secondary Metabolites
Deficiency Symptoms
General Chlorosis
Reduced Growth
Assimilation Pathway
Micronutrients
Iron
Chemical Forms
Functions
Electron Transport
Chlorophyll Synthesis
Enzyme Cofactor
Deficiency Symptoms
Uptake Mechanisms
Manganese
Chemical Forms
Functions
Photosystem II
Enzyme Activation
Deficiency Symptoms
Transport and Storage
Boron
Chemical Forms
Functions
Cell Wall Structure
Membrane Function
Deficiency Symptoms
Uptake and Distribution
Zinc
Chemical Forms
Functions
Enzyme Structure
Protein Synthesis
Deficiency Symptoms
Homeostasis Mechanisms
Copper
Chemical Forms
Functions
Electron Transport
Enzyme Function
Deficiency Symptoms
Toxicity Issues
Molybdenum
Chemical Forms
Functions
Nitrogen Fixation
Nitrate Reduction
Deficiency Symptoms
Uptake and Metabolism
Chlorine
Chemical Forms
Functions
Photosystem II
Osmotic Regulation
Deficiency Symptoms
Transport Mechanisms
Nickel
Chemical Forms
Functions
Urease Activity
Nitrogen Metabolism
Deficiency Symptoms
Recent Discovery
Nutrient Deficiency and Toxicity
Deficiency Symptoms
Visual Diagnosis
Leaf Symptoms
Growth Patterns
Color Changes
Physiological Effects
Metabolic Disruption
Growth Inhibition
Reproductive Failure
Mobility Patterns
Mobile Nutrients
Symptom Patterns
Redistribution Mechanisms
Immobile Nutrients
Symptom Patterns
Localized Effects
Toxicity Symptoms
Excess Nutrient Effects
Ion Interactions
Physiological Damage
Nutrient Interactions
Synergistic Effects
Antagonistic Effects
Balance Requirements
Soil and Nutrient Availability
Soil Composition
Mineral Particles
Sand, Silt, Clay
Weathering Processes
Organic Matter
Humus Formation
Nutrient Release
Soil Solution
Ion Concentrations
pH Effects
Soil Properties
Texture and Structure
Particle Size Distribution
Aggregation
Porosity
pH and Buffering
Hydrogen Ion Activity
Nutrient Availability
Buffering Capacity
Cation Exchange Capacity
Clay Minerals
Organic Matter
Ion Retention
Rhizosphere Interactions
Root Exudates
Organic Acids
Enzymes
Signaling Molecules
Microbial Communities
Bacterial Populations
Fungal Networks
Nutrient Cycling
Mycorrhizal Associations
Ectomycorrhizae
Structure and Function
Host Specificity
Nutrient Exchange
Endomycorrhizae
Arbuscular Mycorrhizae
Vesicular Structures
Phosphorus Uptake
Benefits to Plants
Enhanced Nutrient Uptake
Stress Tolerance
Disease Protection
Nitrogen Fixation
Nitrogen Cycle Overview
Atmospheric Nitrogen
Nitrogen Forms in Soil
Ammonium
Nitrate
Organic Nitrogen
Nitrification Process
Ammonia Oxidation
Nitrite Oxidation
Denitrification Process
Anaerobic Conditions
Nitrogen Gas Production
Biological Nitrogen Fixation
Nitrogenase Enzyme
Structure and Function
Iron-Molybdenum Cofactor
Oxygen Sensitivity
Energy Requirements
Symbiotic Nitrogen Fixation
Legume-Rhizobium Symbiosis
Recognition and Infection
Nodule Development
Bacteroid Formation
Nitrogen Exchange
Other Symbiotic Systems
Actinorhizal Plants
Cyanobacterial Symbioses
Asymbiotic Nitrogen Fixation
Free-Living Bacteria
Associative Bacteria
Environmental Factors
Regulation of Nitrogen Fixation
Oxygen Protection
Energy Supply
Nitrogen Feedback
Environmental Controls
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4. Water Relations and Transport
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6. Photosynthesis