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Fig. 13.18 Biosynthesis of MV Chl
b
via route 6 in the Nec 2 corn mutant and in picoplanktons
picoplankton (see above) which form and accumulate only DV Chl
a
and DV Chl
b
.
Precursor- product relationships between DVChl
a
and DVChl
b
in vivo and in vitro
is required however, to validate this hypothesis.
Conversion of DV Chlide
b
to DV Chl
b
via Route 6
Conversion of DVChlide
b
to DV Chl
b
via route 6 (Fig.
13.18
) may also take place in
the Nec 2 corn mutant and in the prochlorophyte picoplankton (Chisholm et al.
1988
,
1992
; Goerike and Repeta
1992
) which form and accumulate only DV Chl
a
and DV
Chl
b
. Precursor- product relationships between DV Chlide
b
and DV Chl
b
in these
organisms in vivo and in vitro is required however, to validate this hypothesis.
References
Akoyunoglou G (1978) Growth of the PS II unit by fluorescence measurements, the photoinduced
absorbance change at 518 nm and photochemical activity. In: Akoyunoglou G, Argyroudi-
Akoyunoglou JH (eds) Chloroplast development. Elsevier, New York, p 2
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