Back to Search
Start Over
Effects of extracellular ATP on local and systemic responses of bean (Phaseolus vulgaris L) leaves to wounding.
- Source :
-
Bioscience, biotechnology, and biochemistry [Biosci Biotechnol Biochem] 2019 Mar; Vol. 83 (3), pp. 417-428. Date of Electronic Publication: 2018 Nov 20. - Publication Year :
- 2019
-
Abstract
- Wounding increased the extracellular Adenosine 5'-triphosphate (eATP) level of kidney bean leaves. Treatment with wounding or exogenous ATP increased the hydrogen peroxide (H <subscript>2</subscript> O <subscript>2</subscript> ) content, activities of catalase and polyphenol oxidase, and malondialdehyde content in both the treated and systemic leaves. Pre-treatment with ATP-degrading enzyme, apyrase, to the wounded leaves reduced the wound-induced local and systemic increases in H <subscript>2</subscript> O <subscript>2</subscript> content, activities of catalase and polyphenol oxidase, and malondialdehyde content. Application of dimethylthiourea (DMTU) and diphenylene iodonium (DPI) to the wounded and ATP-treated leaves, respectively, reduced the wound- and ATP-induced local and systemic increases in H <subscript>2</subscript> O <subscript>2</subscript> content, activities of catalase and polyphenol oxidase, and malondialdehyde content. Moreover, the wound- and ATP-induced systemic increases of these physiological parameters were suppressed when DMTU or DPI applied to leaf petiole of the wounded and ATP-treated leaves. These results suggest that eATP at wounded sites could mediate the wound-induced local and systemic responses by H <subscript>2</subscript> O <subscript>2</subscript> -dependent signal transduction.
- Subjects :
- Apyrase metabolism
Catalase metabolism
Catechol Oxidase metabolism
Hydrogen Peroxide metabolism
Malondialdehyde metabolism
Phaseolus physiology
Plant Leaves physiology
Adenosine Triphosphate metabolism
Extracellular Space metabolism
Phaseolus cytology
Phaseolus metabolism
Plant Leaves cytology
Plant Leaves metabolism
Subjects
Details
- Language :
- English
- ISSN :
- 1347-6947
- Volume :
- 83
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Bioscience, biotechnology, and biochemistry
- Publication Type :
- Academic Journal
- Accession number :
- 30458666
- Full Text :
- https://doi.org/10.1080/09168451.2018.1547623