Cultivating Palmaria palmata - Bord Iascaigh Mhara
Cultivating Palmaria palmata - Bord Iascaigh Mhara
Cultivating Palmaria palmata - Bord Iascaigh Mhara
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Fig. 2.4. a) Reproductive frond of a tetrasporophyte of <strong>Palmaria</strong> <strong>palmata</strong>. The irregularly shaped dark<br />
areas are spore-containing sori. b) Fertile frond of a male gametophyte. Lighter coloured, irregularly<br />
shaped areas contain spermatangia. c) Micrograph of fertile tissue of <strong>Palmaria</strong>. One tetrasporangium<br />
(spore compartment) contains four tetraspores (arrow). The white arrow points to an empty<br />
tetrasporangium after spore release. d) Spore shortly after release. e) Spores undergoing cell-division 4<br />
days after release. f) Developing male gametophyte 10 days after spore release. g) Female<br />
gametophyte 10 days after spore release with trichogynes (arrows). h) Sporelings growing on culture<br />
string 1 month after seeding.<br />
16<br />
25 μm<br />
40 μm 50 μm<br />
50 μm<br />
a b<br />
c<br />
e f<br />
g<br />
1 mm<br />
d<br />
h