The carotenoids of Polytoma uvella.

TLDR: The he te ro t roph ie phytof lage l la te Polytoma uvella is considered a descenden~ of t he chlorophyl lous pho tosyn the t i c Chlamydomonas of the class Chlorophyceae.

Abstract: The he te ro t roph ie phytof lage l la te Polytoma uvella is considered a descenden~ of t he chlorophyl lous pho tosyn the t i c Chlamydomonas of the class Chlorophyceae (FlZlTSCI~ 1948). I t s mo*ile s tage has a yel low-orange colour, while i ts res t ing s tage is charac te r ized b y the p roduc t ion of cysts t h a t are da rke r r ed (PI~I~GSI~EIH 1926; STlZ]~HLOW 1929). A s t u d y of the carotenoids and o ther l ipids of P. uvella was deemed in te res t ing because the carotenoids of the f lagellates have scarcely been inves t iga t ed (Goo~)wI~ 1952). The compara t i ve b iochemis t ry of t he caro tenoids of the phy~oflagellates m a y con t r ibu te to establistf ing phylogenet ic re la t ionships (GooI)wlN 1952; LwoFF 1951; HUTXEI~ and PRo. VASOLI 1951; ST~AI~ 1944).