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2.39 Longitudinally-sl:crionl:d l:hlofOplast<br />
from Ullum usitatissimllm (flax), Note the<br />
well developed granal membranl:s (1)<br />
within the stroma and the two membranes<br />
of the investing l:nvelope: (21, Closely associau:d<br />
with the plastid is a large peroxysome,<br />
with a granular matrix (3), whi,h is<br />
bounded by a single membranl: (4). Tonoplast<br />
(5), plasmalemma (6). (G-Os, TE.\tI x<br />
29,000_)<br />
I Granal membr,mC$<br />
2 O1JoropJast envclOIX<br />
3 Perox)"some<br />
4 Single membrane of peroxysome<br />
5 Tonoplast<br />
6 Plasmalemma<br />
2.40 Plastid of Crambe maritima (seakale) showing<br />
crystalline phytoferrelin within the stroma. The two<br />
membranes constituting the plastid envelope (I) arc dearly<br />
e\·idc-nt. (G-Os, TEM x 111,500.)<br />
1 Plauid em-elope:<br />
2.41 Greening etioplasr in the stem of Giechoma<br />
hederacea (ground ivy). From the vestiges of the prolamellar<br />
body (I) a granal/frct memhranous system (2) is<br />
developing. Starch (3), plastid envdope (4). (G-Os, TEM x<br />
47,500.)<br />
-,<br />
1 Prolamellar body<br />
2 GranaVfret membranous system<br />
3 Starch<br />
4 Plastid en\'e1opc<br />
,<br />
{'o¥J, .'<br />
, •<br />
•<br />
45<br />
2.3<br />
2.4<br />
2.4
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