Plant Physiology and Metabolism

Paper Code: 
BOT 501
Credits: 
3
Contact Hours: 
45.00
Max. Marks: 
100.00
Objective: 

The course aims to study the vital and the various metabolic activities in plants.

10.00
Unit I: 

Plants Water Relations: Plants and water, diffusion and osmosis (DPD, OP, TP, Water Potential), Plasmolysis, ascent of sap, transpiration, guttation, significance of transpiration , stomatal structure, water stress and ABA.

Mineral nutrition: Role of micro and macro elements, mineral uptake, deficiency and toxicity symptoms, hydroponics.

                                                                                              

10.00
Unit II: 

Transport of Organic substances: Mechanism of phloem transport, apoplast and symplast concept, source-sink relationship.

Nitrogen metabolism: N2 cycle, mechanism, biology and chemistry of nitrogen fixation,  root nodulation, Nod factor, asymbiotic N2 fixation, ammonia assimilation.        

                                                                                                                                               

10.00
Unit III: 

Photosynthesis: Chloroplast structure, Photosynthetic pigments, action spectra and enhancement effects, concepts of two photosystems, photophosphorylation, Calvin cycle,C4 pathway ,CAM plants, photorespiration .

                                                                                                      

10.00
Unit IV: 

Respiration: RQ, ATP-the biological energy currency, fermentation, glycolysis , Kreb’s cycle, Electron transport mechanism, oxidative phosphorylation, pentose phosphate pathway,                                                                            

10.00
Unit V: 

Growth and Development: Plant growth regulators- Auxins, Gibberellins, Cytokinins, Abscisic acid, Ethylene : biosynthesis, chemistry , mechanism of action and their physiological roles, physiology of flowering: photoperiodism and vernalization, growth movements.

Essential Readings: 
  1. Lawlor and David, W. 2001. Photosynthesis. Viva Books Pvt. Ltd.
  2. Lea, PJ and Leegood, RC. 1999. Plant Biochemistry and Molecular Biology. John Wiley & Sons, New York.
  3. Mohr, H and Schopfer, P. 1995. Plant Physiology. Springer- Verlag, Berlin, Germany.
  4. Pandey, BP. 1998. Plant Physiology. Vikas Publishing House.
  5. Sands. 1995. Problems in Plant Physiology. John Murray, London.
  6. Srivastava, HN. 2006. Pradeep’s Botany Vol. V. Pradeep Publications, Jalandhar.
  7. Verma, SK. Plant Physiology and Biochemistry. S. Chand & Sons, New Delhi.
References: 
  1. Dennis, DT; Turpin, DH; Lefebvre, DD and Layzell (eds.). 1997. Plant Physiology
  2. Devlin. 1997. Plant Physiology. East-West Press Pvt. Ltd.
  3. Gosh, AK. 2005. Plant Physiology. New Central Book Agency (P) Ltd., Calcutta.
  4. Hopkins, WG. 1995. Introduction to Plant Physiology. John Wiley & Sons Inc., New York, USA.
  5. Taiz, L and Zieger, E. 1998. Plant Physiology (2nd edition). Sinauer Associates, Inc. Publishers Massachusetts, USA.
  6. Salisbury, FB and Ross, CW. 1992. Plant Physiology (4th edition). Wadsworth Publishing Co., California, USA.
     
Academic Year: 
2018-2019
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