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Phospholipase C is ...
Phospholipase C is required for the control of stomatal aperture by ABA
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Hunt, L (author)
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Mills, LN (author)
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- Pical, Christophe (author)
- Lund University,Lunds universitet,Biokemi och Strukturbiologi,Centrum för Molekylär Proteinvetenskap,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Biochemistry and Structural Biology,Center for Molecular Protein Science,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
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Leckie, CP (author)
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Aitken, FL (author)
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Kopka, J (author)
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Mueller-Roeber, B (author)
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McAinsh, MR (author)
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Hetherington, AM (author)
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Gray, JE (author)
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(creator_code:org_t)
- 2003
- 2003
- English.
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In: Plant Journal. - 1365-313X. ; 34:1, s. 47-55
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http://dx.doi.org/10...
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Abstract
Subject headings
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- The calcium-releasing second messenger inositol 1,4,5-trisphosphate is involved in the regulation of stomatal aperture by ABA. In other signalling pathways, inositol 1,4,5-trisphosphate is generated by the action of phospholipase C. We have studied the importance of phospholipase C in guard cell ABA-signalling pathways. Immunolocalisation of a calcium-activated phospholipase C confirmed the presence of phospholipase C in tobacco guard cells. Transgenic tobacco plants with considerably reduced levels of phospholipase C in their guard cells were only partially able to regulate their stomatal apertures in response to ABA. These results suggest that phospholipase C is involved in the amplification of the calcium signal responsible for reductions in stomatal aperture in response to ABA. As full ABA-induced inhibition of stomatal opening was not observed, our results support a role for the action of other calcium-releasing second messengers in the guard cell ABA-signalling pathway. It is not known whether these different calcium-releasing second messengers act in the same or parallel ABA-signalling pathways.
Subject headings
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Keyword
- abscisic acid
- guard cell
- calcium
- inositol 1
- 4
- 5-trisphosphate
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Hunt, L
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Mills, LN
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Pical, Christoph ...
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Leckie, CP
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Aitken, FL
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Kopka, J
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show more...
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Mueller-Roeber, ...
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McAinsh, MR
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Hetherington, AM
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Gray, JE
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
- Articles in the publication
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Plant Journal
- By the university
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Lund University