BIOL-520 Introductory Plant Physiology-

UNIT I-

Water relations in plant- Osmosis, Diffusion Inhibition, Plasmolysis, Permeability, Concept of diffusion pressure deficit & water potential, Water absorption, Ascent of sap, Transpiration, Guttation, Potassium ion transport theory in relation to stomatal opening, Antitranspirants.

UNIT II-

Nitrogen assimilation, Nitrogen fixation, symbiosis, nitrogen fixing organisms, biofertilizers, nitrogen cycle.

UNIT III-

Importance of macro & micro nutrients, their deficiency and symptoms, Ash analysis, nutrient uptake, Donnan equilibrium, Carrier transport, Hydroponics.

UNIT IV-

Role of plant hormones such as Auxins, Gibberellins, Cytokinins, Ethylene, Abscicic acid, Photoperiodism, Vernalisation, Tropisms, Senescence and Abscission.

UNIT V-

Photosynthesis, historical perspective, structure of chlorophyll, light reaction, Emerson enhancement effect, photo phosphorylation, C3 & C4 plants, photorespiration, law of limiting factors.

UNIT VI-

Stress physiology- Stress and strain, kinds of stress, mechanism of stress adaptation of plant to stress.

Practical:

ï‚· Demonstration of osmosis
ï‚· Demonstration of osmotic potential of a cell
ï‚· Stomatal studies
ï‚· Measurement of rate of transpiration
ï‚· Nutrients deficiency symptoms in plants
ï‚· Measurement of rate of photosynthesis in an aquatic plant
ï‚· To demonstrate that light and CO2 are essential for photosynthesis
ï‚· To demonstrate that O2 is consuming during respiration