Plastid genes and parasitic plants

Abstract

SCIENTIFIC CORRESPONDENCE where y is the membrane tension for a single graphite layer. (This behaves as a surface tension). If we now assume that y is curvature-independent and that the molecules are spherical with radius R, the hydrostatic tension P, is given by the Laplace equation P,=2y/ R. If we treat the C 60 molecule more correctly as a truncated icosahedron rather than a sphere, the right-hand side of this equation must be multiplied by 1.0881. Substituting for yin equation (1),

Complete Gene Map of the Plastid-like DNA of the Malaria ParasitePlasmodium falciparum

“…Its conservation might be explained if the putative plastid organelle contributes to an integral step in eukaryotic intermediary metabolism that is normally carried out by plastids (Howe & Smith, 1991;Wallsgrove, 1991). One such function might be the de novo biosynthesis of haem precursors (Kannangara et al, 1988).…”

Extrachromosomal DNA in the Apicomplexa

“…Among several possibilities that have been discussed (55,114), it appears that de novo biosynthesis of heme precursors in the malaria parasite is probably not an answer, since this is carried out by the glycine/ mitochondrial pathway rather than by the plastid pathway utilizing glutamate (103).…”

Extrachromosomal DNA in the Apicomplexa

“…It seems likely that the apicomplexan plastid organelle contributes to an integral step in eukaryotic intermediary metabolism normally carried out by plastids. Among several possibilities that have been discussed (55,114), it appears that de novo biosynthesis of heme precursors in the malaria parasite is probably not an answer, since this is carried out by the glycine/ mitochondrial pathway rather than by the plastid pathway utilizing glutamate (103).…”