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Gonadal differentiation and secretions of estradiol and testosterone of the ovaries of Rana catesbeiana tadpoles treated with 4-hydroxyandrostenedione.
Laparotomized female tadpoles of Rana catesbeiana at TK stages X-XII, about 9 months old, were implanted intraperitoneally with empty capsules or capsules containing 4-hydroxyandrostenedione (4-OHA),Expand
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Craniofacial injuries in unhelmeted riders of motorbikes.
We studied 1160 consecutive craniofacial injuries sustained by unhelmeted motorbike riders in Taipei, Taiwan, between 1990 and 1993, in order to investigate the distribution, type and severity ofExpand
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Penicillin production by glucose-derepressed mutants ofPenicillium chrysogenum
SummaryWild-type strains ofPenicillium chrysogenum produce lower penicillin V titers in media containing excess glucose. Two mutant strains were isolated and shown to produce normal penicillin VExpand
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Ultraviolet-sensitive mutants in Neurospora crassa.
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Induced mutation in UV-sensitive mutants of Aspergillus nidulans and Neurospora crassa.
Abstract Fewer adenine-independent mutants were induced by UV in a UV-sensitive mutant (uvs-1) of Aspergillus nidulans whether the comparison was made on the basis of equivalent dose or survival.Expand
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Non-nuclear inheritance of UV sensitivity in Neurospora crassa.
The heterocaryon test was used to confirm the non-nuclear basis for UV sensitivity in a mutant of Neurospora crassa (uvs-2). A model is presented to explain the results from a cross and theExpand
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Intergenic complementation of glucoamylase and citric acid production in two species of Aspergillus.
All auxotrophs of Aspergillus foetidus and all but two auxotrophs of A. niger which we isolated yield glucoamylase and citric acid, respectively, at levels below that of the prototrophic strain fromExpand
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Stimulation of the conversion of penicillin N to cephalosporin by ascorbic acid, alpha-ketoglutarate, and ferrous ions in cell-free extracts of strains of Cephalosporium acremonium.
Abstract A cell-free system of the cephalosporin C fungus, Cephalosporium acremonium , has been described which conversts penicillin N to a cephalosporin-like material which was biologically-activeExpand
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In vitro estradiol synthesis and secretion by tadpole ovaries of different developmental stages.
The tadpole ovaries at TK stage XIX can synthesize and secrete estradiol (E2), yet it is unknown when this ovarian function starts and how it develops. To this end, the present work has been carriedExpand
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