C4 Equivalent Decarboxylation Competence in Tropical Orchids

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 Adenine Dinucleotide malic enzyme (NAD-ME) Phosphate (NADP-ME) that concentrate by employing RuBisCO to embark on carboxylation route is defined this paper. Physiological parameters like rates, quantum yield, accompanied histomorphometry were analysed. Our study indicated PEPCK dominant decarboxylating tropical orchids. efficiency was reinforced two additional enzymes, which are dependent cofactors, namely Phosphate. These results need appraise potential strategic plant contenders for triggered greenhouse effect mitigator.