The Chl b Biosynthetic Pathway:Intermediary Metabolism - Chlorophyll Biosynthesis and Technological Applications - page 288

Fig. 13.4 MV Chlide b biosynthesis via route 14 in DMV-LDV-LDMV plant species (Adapted
from Fig. 6.4 of Chap. 6 )
b to MV Chlide b (Klement et al. 1999 ). To ascertain the operation of biosynthetic
route 11, inDMV-LDDV-DLMVplants, precursor product relationships betweenMV
Pchlide a and MV Pchlide b need to be established (Fig. 13.6 ).
Formation of DV Chlide b via Route 6 in DDV-LDV-LDDV Plants
The DV Chlide b pool is putatively formed from DV Chlide a via biosynthetic route
6. In higher plants DV Chlide b has so far been detected only in the Nec 2 maize
mutant (that used to be known as the ON 8,147 mutant) (C. A. Rebeiz, unpub-
lished). This mutation is a lethal mutation, the leaves are pale yellow, and accumu-
late only DV Chl a and b (Bazzaz 1981 ). Nec2 maize leaves accumulate DV Chlide