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: 
Plant-Water relations and mineral nutrition

 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.

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

                                                                                              

10.00
Unit II: 
Transport of Organic substances and Nitrogen metabolism:

 Mechanism of phloem transport, apoplast and symplast concept, source-sink relationship.

 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 .

                                                                                                

5.00
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: 
  • Dennis, DT; Turpin, DH; Lefebvre, DD and Layzell (eds.). 1997. Plant Physiology
  • Devlin. 1997. Plant Physiology. East-West Press Pvt. Ltd.
  • Gosh, AK. 2005. Plant Physiology. New Central Book Agency (P) Ltd., Calcutta.
  • Hopkins, WG. 1995. Introduction to Plant Physiology. John Wiley & Sons Inc., New York, USA.
  • Taiz, L and Zieger, E. 1998. Plant Physiology (2nd edition). Sinauer Associates, Inc. Publishers Massachusetts, USA.
  • Salisbury, FB and Ross, CW. 1992. Plant Physiology (4th edition). Wadsworth Publishing Co., California, USA.

 

 

 

 

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References: 

 

 

  • Lawlor and David, W. 2001. Photosynthesis. Viva Books Pvt. Ltd.
  • Lea, PJ and Leegood, RC. 1999. Plant Biochemistry and Molecular Biology. John Wiley & Sons, New York.
  • Mohr, H and Schopfer, P. 1995. Plant Physiology. Springer- Verlag, Berlin, Germany.
  • Pandey, BP. 1998. Plant Physiology. Vikas Publishing House.
  • Sands. 1995. Problems in Plant Physiology. John Murray, London.
  • Srivastava, HN. 2006. Pradeep’s Botany Vol. V. Pradeep Publications, Jalandhar.
  • Verma, SK. Plant Physiology and Biochemistry. S. Chand & Sons, New Delhi.
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Academic Year: 
2017-2018
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