Medical Definition of C4 plant

1. Plants found principally in hot climates whose initial fixation of carbon dioxide in photosynthesis is by the HSK pathway. The enzyme responsible is PEP carboxylase, whose products contain four carbon atoms. Subsequently the carbon dioxide is released and re fixed by the Calvin Benson cycle. The presence of the HSK pathway permits efficient photosynthesis at high light intensities and low carbon dioxide concentrations. most species of this type have little or no photorespiration. (21 Mar 1998)

Lexicographical Neighbors of C4 Plant

C14
C15
C16
C17
C18
C19
C1 esterase
C1 esterase inhibitor
C2H6
C2 kinin
C3PO
C3 plant
C3 proactivator
C3 proactivator convertase
C4
C4 plant (current term)
C5a peptidase
C64
CA
CA-125
CA-MRSA
CA19-9
CAA
CAAA
CAAC
CAAT box
CAB
CABF
CABG
CAC

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