2. Prochlorophyta
Prochlorophyceae
1976-77, Lewin- unicellular prokaryotic algae ,
coral reefs of Mexican coast.
new spp.-with characters not of Cyanophytaor
Chlorophyta, new genus –Prochloron
thallus single celled or filamentous.
cells prokaryotic.
Plastids absent.
Thylakoids paired. Chlorophyll-b present,
phycobilins absent.
3. prochloron-not a free living,is associated with larve
of didemnid.
They are epizoic, obligate symbiont.
largest known prokartes with spherical cells-
30 mu micron.
cells with stacked thylakoids.
Prochlorothrix- Burger-Wiersman-1986 –free
floating phytoplanktonic filamentous fresh water
(Netherlands). Chl.a,Chl.b
this group might have developed chl.bduring
evolution and lost phycobilosomes, biliproteins.
4. this group has same characters of cyanophyta-
Cell structure-prokaryotic. Plastids-absent,
presence of chl.a.
Similarities with chlorophyta-
Chl.a,chl.b;
paired thylakoids;
Absence of phycobilisomes and biliproteins.
