Abstract | BACKGROUND: This study was performed to clarify the strategies of Penicillium digitatum during pathogenesis on citrus, assessing, on albedo plugs, the effects of treatment with sodium bicarbonate (NaHCO3 ), at two different pH values (5 and 8.3), on cell-wall-degrading enzyme activity over a period of 72 h. RESULTS: Treatment with NaHCO3 , under alkaline pH, delayed the polygalacturonase activity for 72 h, or 48 h in the case of the pectin lyase, compared with the control or the same treatment at pH 5. In contrast, pectin methyl esterase activity rapidly increased after 24 h, in plugs dipped in the same solution. In this case, the activity remained higher than untreated or pH 5-treated plugs up to 72 h. CONCLUSION:
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Authors | Tullio Venditti, Guy D'hallewin, Gianfranca Ladu, Giacomo L Petretto, Giorgio Pintore, John M Labavitch |
Journal | Journal of the science of food and agriculture
(J Sci Food Agric)
Vol. 98
Issue 13
Pg. 4928-4936
(Oct 2018)
ISSN: 1097-0010 [Electronic] England |
PMID | 29574996
(Publication Type: Journal Article)
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Copyright | © 2018 Society of Chemical Industry. |
Chemical References |
- Enzyme Inhibitors
- Fungal Proteins
- Sodium Bicarbonate
- Polygalacturonase
- Polysaccharide-Lyases
- pectin lyase
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Topics |
- Cell Wall
(metabolism, microbiology)
- Citrus paradisi
(metabolism, microbiology)
- Enzyme Inhibitors
(chemistry, pharmacology)
- Fungal Proteins
(chemistry, metabolism)
- Hydrogen-Ion Concentration
- Penicillium
(drug effects, enzymology)
- Plant Diseases
(microbiology)
- Polygalacturonase
(chemistry, metabolism)
- Polysaccharide-Lyases
(chemistry, metabolism)
- Sodium Bicarbonate
(chemistry, pharmacology)
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