they were ruptured by forcing them through a 20-mum aperture nylon net and immediately thereafter fractionated into a pure pellet of plastids ( well above 70 % of total plastids ) , a layer of mitochondria only slightly contaminated by other cellular constituents ( about 50 % of total mitochondria ) , and a cytoplasmic supernatant .
C0007634
cellular
C0010834
cytoplasmic