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Peroxidase and lipid peroxidation of soybean roots in response to p-coumaric and p-hydroxybenzoic acids
The scope of the present study was to investigate how the p-coumaric (p-CA) and p-hydroxybenzoic (p-HD) acids affect the peroxidase (POD, EC 1.11.1.7) activity, the lipid peroxidation (LP) and the root growth of soybean (Glycine max (L.) Merr.). Three-day-old seedlings were cultivated in nutrient so...
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Published in: | Brazilian archives of biology and technology 2003-03, Vol.46 (2), p.193-198 |
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Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | The scope of the present study was to investigate how the p-coumaric (p-CA) and p-hydroxybenzoic (p-HD) acids affect the peroxidase (POD, EC 1.11.1.7) activity, the lipid peroxidation (LP) and the root growth of soybean (Glycine max (L.) Merr.). Three-day-old seedlings were cultivated in nutrient solution containing p-CA or p-HD (0.1 to 1 mM) for 48 h. After uptake, both compounds (at 0.5 and 1 mM) decreased root length (RL), fresh weight (FW) and dry weight (DW) while increased soluble POD activity, cell wall (CW)-bound POD activity (with 1 mM p-CA and 0.5 mM p-HD) and LP.
A proposta do presente trabalho foi investigar como os ácidos p-cumárico (p-CA) e p-hidroxibenzóico (p-HD) afetam a atividade da peroxidase (POD, EC 1.11.1.7), a peroxidação lipídica (LP) e o crescimento de raízes de soja (Glycine max (L.) Merr.). Plântulas de três dias foram cultivadas em solução nutritiva com p-CA ou p-HD (0,1 a 1 mM) por 48 horas. Após absorção, ambos os compostos (a 0,5 e 1 mM) reduziram o comprimento das raízes (RL), a biomassa fresca (FW) e a biomassa seca (DW) enquanto aumentaram a atividade da POD solúvel, a atividade da POD ligada à parede celular (com p-CA 1 mM e p-HD 0,5 mM), e a LP. |
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ISSN: | 1516-8913 1516-8913 1678-4324 |
DOI: | 10.1590/s1516-89132003000200009 |