Stomatal Opening Is Induced in Epidermal Peels of Commelina communis L. by GTP Analogs or Pertussis Toxin.
AUTOR(ES)
Lee, H. J.
RESUMO
Pretreatment with pertussis toxin or microinjection of guanosine- 5[prime]-(3-thiotriphosphate) (GTP-[gamma]-S) into guard cells in peeled epidermis of Commelina communis L. promoted stomatal opening under subsaturating white light. Guanosine-5[prime]-(2-thiodiphosphate) (GDP-[beta]-S) and adenosine-5[prime]-(3-thiotriphosphate) (ATP-[gamma]-S) did not change stomatal aperture under identical conditions. These results indicate that G proteins may be involved in the regulation of stomatal opening.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=158750Documentos Relacionados
- Energy Supply for Stomatal Opening in Epidermal Strips of Commelina benghalensis1
- Calcium Effects on Stomatal Movement in Commelina communis L. 1: Use of EGTA to Modulate Stomatal Response to Light, KCl and CO2
- Promotion of Stomatal Opening by Indoleacetic Acid and Ethrel in Epidermal Strips of Vicia faba L
- Acid-Induced Stomatal Opening in Vicia faba L. and the Role of Guard Cell Wall Elasticity 1
- Modulation of leukotriene generation by pertussis toxin.
