cam pathway
TRANSCRIPT
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REGULATION OF CAM THROUGH
METABOLITES
PRESENTATION BY AMREEN ANSARI
MSc-PART 1
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INTRODUCTION
CAM stands for --------------Discovered by Heyne (1804) and later by
Aubert (1815).Term coined by Ranson and Thomas (1940)Mechanism for concentrating CO2 CAM is not restricted to the family
CrassulaceaeEnables plants to improve H2O EfficiencyCAM plants have advantage in dry
environment
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CAM can be defined according to the following criteria
Succulents plantsDiurnal fluctuation of organic acidHigh activities of PEP carboxylaseStomata openingTropical origin and xeric
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CAM PLANTS
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CAM
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ATP ADP
Inhibited by insensitive to
Pi H2O
SER-DHPEP CARBOXYLASE
DAY FORM
SER- OPPEP CARBOXYLASE
NIGHT FORM
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C4 vs CAM Summary
C4 plants separate 2 steps of C fixation anatomically in 2 different cells
CAM plants separate 2 steps of C fixation temporally at2 different times
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• PHOTOSYNTHETIC SYSTEMS BY SUSAN M. DANKS,E.HILARY EVANSPETER A. WHITTAKER• CAM BY IRWIN. P. TINGMARTIN GIBBS• PLANT PHYSIOLOGY BYTEIZ AND ZEIGER• CELL BIOLOGY BY GOVINDJEE
References:
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