Hydrogen sulphide, a novel gasotransmitter involved in guard cell signalling
© The Authors (2010). Journal compilation © New Phytologist Trust (2010).
| Veröffentlicht in: | The New phytologist. - 1979. - 188(2010), 4 vom: 01. Dez., Seite 977-84 |
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| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2010
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| Zugriff auf das übergeordnete Werk: | The New phytologist |
| Schlagworte: | Journal Article Research Support, Non-U.S. Gov't ATP-Binding Cassette Transporters Potassium Channels, Inwardly Rectifying Receptors, Drug Sulfonylurea Receptors Abscisic Acid 72S9A8J5GW Glyburide SX6K58TVWC mehr... |
| Zusammenfassung: | © The Authors (2010). Journal compilation © New Phytologist Trust (2010). Hydrogen sulphide (H(2) S) has been proposed as the third gasotransmitter. In animal cells, H(2) S has been implicated in several physiological processes. H(2) S is endogenously synthesized in both animals and plants by enzymes with l-Cys desulphydrase activity in the conversion of l-Cys to H(2) S, pyruvate and ammonia. The participation of H(2) S in both stomatal movement regulation and abscisic acid (ABA)-dependent induction of stomatal closure was studied in epidermal strips of three plant species (Vicia faba, Arabidopsis thaliana and Impatiens walleriana). The effect of H(2) S on stomatal movement was contrasted with leaf relative water content (RWC) measurements of whole plants subjected to water stress. In this work we report that exogenous H(2) S induces stomatal closure and this effect is impaired by the ATP-binding cassette (ABC) transporter inhibitor glibenclamide; scavenging H(2) S or inhibition of the enzyme responsible for endogenous H(2) S synthesis partially blocks ABA-dependent stomatal closure; and H(2) S treatment increases RWC and protects plants against drought stress. Our results indicate that H(2) S induces stomatal closure and participates in ABA-dependent signalling, possibly through the regulation of ABC transporters in guard cells |
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| Beschreibung: | Date Completed 15.02.2011 Date Revised 31.03.2022 published: Print-Electronic CommentIn: New Phytol. 2010 Dec;188(4):910-3. - PMID 21105291 Citation Status MEDLINE |
| ISSN: | 1469-8137 |
| DOI: | 10.1111/j.1469-8137.2010.03465.x |