Plant Physiology and Biochemistry I

Paper Code: 
BOT 223
Credits: 
4
Contact Hours: 
60.00
Max. Marks: 
100.00
Objective: 

To study the vital activites in plant and study of various metabolic activities in plants

 

12.00
Unit I: 
Plant-Water relations and Membrane transport

 Water potential and its relations, Soil Plant Atmosphere Continuum (SPAC), transpiration.

Mineral Nutrition: Role of micro and macro elements, chelating reagents, mechanism of phloem transport, translocation of sugars.                                                                                                                                                                                                

 

 

12.00
Unit II: 
Photosynthesis

 Photosynthetic pigments , absorption and action spectrum, photo-oxidation, non-cyclic and cyclic transportation of electrons, proton gradient and photophosphorylation, Calvin cycle, structure of RUBISCO and regulation of its activity, control of Calvin cycle , C4 pathway and its significance, CAM pathway, differences between C3 and C4 plants and photorespiration.

12.00
Unit III: 
Respiration

Anaerobic and aerobic respiration, fermentation, Respiratory Quotients, glycolysis,  regulation of glycolysis, regulation of TCA cycle, oxidative phosphorylation, glyoxylate pathway, gluconeogenesis.

Nitrogen Metabolism : Nitrogen cycle, Nitrogen fixation, importance of nitrate reductase and its regulation , Nod factor,  nif and nod genes, glutamate D dehydrogenase reaction.                                                                                                           

 

 

 

                                                                                                                                                                                       

12.00
Unit IV: 
Signal transduction

 Receptors: ion channel , G-proteins and enzyme linked, calcium-calmodulin cascade,  signal transduction mechanisms with special reference to plant growth regulators.                                                                                                                                                                                                                                                     

Stress physiology: Plant responses to biotic and abiotic stresses, plant defense mechanisms against water stress, salinity stress, metal toxicity, freezing and heat stress, Role of jasmonic acid and salicylic acid

                                                                                       

12.00
Unit V: 
Growth and Development

Plant growth regulators- Auxins, Gibberellins, Cytokinins, Abscisic acid, Ethylene, – chemistry, biosynthesis, bioassay, mechanism of action and their physiological roles.

Photobiology: Phytochromes and Cryptochromes – their discovery, physiological roles and mechanism of action, Physiology of flowering : Photoperiodism and Vernalization, Circadian rhythms in plants.                                                                                

 

 

Essential Readings: 

 

  • Dennis, DT; Turpin, DH; Lefebvre, DD and Layzell (eds.). 1997. Plant.
  • Devlin. 1997. Plant Physiology. East-West Press Pvy. Ltd.
  • Metabolism (2nd edition). Longman, Essex, England.
  • Galston, AW. 1989. Life Processes in Plants. Scientific American Library.
  • 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.
  • 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.
  • Salisbury, FB and Ross, CW. 1992. Plant Physiology (4th edition). Wadsworth Publishing Co., California, USA.
  • Sands. 1995. Problems in Plant Physiology. John Murray, London.
  • Srivastava, HN. 2006. Pradeep’s Botany Vol. V. Pradeep Publications, Jalandhar.
  • Taiz and Lincoln. 2003. Plant Physiology. Panima Publishing Co., New Delhi.
  • Taiz, L and Zieger, E. 1998. Plant Physiology (2nd edition). Sinauer Associates, Inc. Publishers Massachusetts, USA.
  • Verma, SK. Plant Physiology and Biochemistry. S. Chand & Sons, New Delhi.

 

 

 

 

 

 

References: 
  • Bajracharya, D. 2003. Experiments in Plant Physiology: A Laboratory Manual.
  • Bendre. 1995. A Text Book of Practical Botany. Rastogi Publications, Meerut.
  • Santra, SC. 2005. College Botany Practical Vol.II. New Central Book Agency (P) Ltd., Calcutta.
  • Pandey, BP and Chadha. 1997. Botany Vol. III. Vikas Publishing House.

 

Academic Year: 
2016-2017
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