Abstract Tropical xero-epiphytic orchids undergo a photosynthetic mechanism called ‘Crassulacean Acid Metabolism’, modification of Calvin–Benson cycle. This anabolic process aids in the long-term retention organically fixed CO 2 , imprinting them as active sequestrators and fixers gaseous . The malate decarboxylation competence enzymes—phosphoenolpyruvate carboxykinase (PEPCK), Nicotinamide Ade...
