Emission of hydrogen sulfide from sulfur dioxide-fumigated pine trees
| Autor: | Sten-Ake Fredriksson, Jan‐Erik Hällgren |
|---|---|
| Rok vydání: | 1982 |
| Předmět: |
Physiology
Hydrogen sulfide fungi Fumigation Plant Science Articles Molecular sieve equipment and supplies Concentration ratio complex mixtures respiratory tract diseases chemistry.chemical_compound chemistry Sulfur assimilation Environmental chemistry Chlorophyll Genetics Gas chromatography Sulfur dioxide |
| Zdroj: | Plant physiology. 70(2) |
| ISSN: | 0032-0889 |
| Popis: | Pine (Pinus silvestris L.) trees subjected to relatively low concentration of SO(2) in the field emit H(2)S from the needles, as demonstrated by gas chromatographic analysis after preconcentration on a molecular sieve. H(2)S is the only reduced sulfurous compound emitted from SO(2) fumigated leaves. The emission is light and SO(2) concentration dependent. Pine trees in the field and in laboratory experiments continue to emit H(2)S several hours after the termination of prolonged SO(2) fumigation. The maximum emission rates observed from pine trees in the field and in laboratory experiments, 14 and 20 nanomoles per milligram chlorophyll per hour respectively, are about the activity expected for the sulfur assimilation pathway in the chloroplasts. |
| Databáze: | OpenAIRE |
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