Response of sulfur assimilation in curly kale to atmospheric hydrogen sulfide

The impact of exposure to sulfurous air pollutants on the plant is paradoxical (Chapter 1). On the one hand biomass production of susceptible species may be reduced upon prolonged exposure on the other hand H2S may be beneficial and can be utilized as sulfur source for plant growth, especially when the sulfur supply to the roots is limited. In this study the interaction between atmospheric (via the shoot) and pedospheric sulfur nutrition (via the roots) in plants was investigated in more detail. Atmospheric H2S was used as a tool in order to get more insight into the regulation of sulfate uptake by the roots and the signals involved. The used plant species in this study was Brassica oleracea (curly kale). Members of the Brassicacea orginate from saline, sulfur-enriched environments and are characterized by their high sulfur demand for growth. ...

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Summary

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