First observation of facultative paedomorphosis in the Danube crested newt (Triturus dobrogicus Kiritzescu, 1903) and the occurrence of facultative paedomorphosis in two newt species from soda pans of the Danube-Tisza Interfluve (Kiskunság National Park, Hungary)

The first observation of paedomorphosis in Triturus dobrogicus and the occurrence of facultative paedomorphosis in two newt species (T.dobrogicus and Lissotriton vulgaris) from soda pans of the Danube- Tisza Interfluve, Hungary are reported in this paper. Facultative paedomorphosis in soda pans occurred in 2010, a year with extremely high precipitation. The favorable environmental conditions created enabled newt populations to extend their aquatic life stage in otherwise unsuitable (too saline), though fish-free habitats. As such, soda pans may provide a suitable aquatic environment for local newt populations in rainy years, and facultative paedomorphosis may be an important adaptation allowing early reproduction in the following year possible in an environment that frequently dries out

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Enantiomeric oxidation of organic sulfides by the filamentous fungi Botrytis cinerea, Eutypa lata and Trichoderma viride

The biotransformations of a series of substituted sulfides were carried out with the filamentous fungi Botrytis cinerea, Eutypa lata and Trichoderma viride. Several products underwent microbial oxidation of sulfide to sulfoxide with medium to high enantiomeric purity. With regard to sulfoxide enantioselectivity, the (R)-enantiomer was favoured in biotransformations by T. viride and E. lata while the (S)-enantiomer was favoured in those by B. cinerea. A minor amount of sulfone product was also obtained