The influence of daylength and temperature on the testis pterin content of Drosophila littoralis.
D000818:Animals; D004330:Drosophila / Q000378:metabolism*; D008027:Light; D008297:Male; D011622:Pterins / Q000378:metabolism*; D013696:Temperature; D013737:Testis / Q000378:metabolism*
D011622:Pterins