Role of vacuolar invertase in regulating Arabidopsis stomatal opening

Guard cells sense and integrate environmental signals to modulate stomatal aperture in response to diverse conditions. In this study, the effect of vacuolar invertase on Arabidopsis stomatal opening was investigated. The technology of enzyme activity detection in situ was used to show that the vacuo...

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Bibliographic Details
Published inActa physiologiae plantarum Vol. 34; no. 6; pp. 2449 - 2452
Main Author Ni, Di An
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer-Verlag 01.11.2012
Subjects
Agriculture
Arabidopsis
beta-fructofuranosidase
Biomedical and Life Sciences
cotton
enzyme activity
gene overexpression
genes
guard cells
Life Sciences
mutants
Plant Anatomy/Development
Plant Biochemistry
Plant Genetics and Genomics
Plant Pathology
Plant Physiology
Short Communication
stomatal movement
transfer DNA
Stomatal opening
Vacuolar invertase
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Summary:Guard cells sense and integrate environmental signals to modulate stomatal aperture in response to diverse conditions. In this study, the effect of vacuolar invertase on Arabidopsis stomatal opening was investigated. The technology of enzyme activity detection in situ was used to show that the vacuolar invertase activity was much higher in guard cells than in other epidermal cells. The stomatal aperture of T-DNA insertion mutant in At1g12240 (inv-7) was significantly lower than that in wild-type plants. Increased stomatal aperture was observed in the transgenic Arabidopsis overexpressing cotton vacuolar invertase gene. These results indicated that Arabidopsis stomatal aperture was correlated with vacuolar invertase, and that vacuolar invertase may play an important role in regulating Arabidopsis stomatal opening.
Bibliography:http://dx.doi.org/10.1007/s11738-012-1036-5
ISSN:0137-5881
1861-1664
DOI:10.1007/s11738-012-1036-5