Effect of titanium (IV) application on some enzymatic activities in several developing stages of red pepper plants
1994; Taylor & Francis; Volume: 17; Issue: 2-3 Linguagem: Inglês
10.1080/01904169409364724
ISSN1532-4087
AutoresMicaela Carvajal, Francisco Martínez‐Sánchez, Carlos F. Alcaraz,
Tópico(s)Geochemistry and Elemental Analysis
ResumoAbstract The effect of two titanium (IV) compounds, titanium ascorbate and titanium chloride, on some enzymatic activities, such as catalase, peroxidase, lipoxygenase and nitrate reductase in seeds, embryos, and seedlings and adult plants of red pepper (Capsicum annuum L.), was studied. A stimulatory effect of titanium was observed for every iron‐depending enzyme studied at all developing stages as well as for nitrate reductase but only for whole plants. This occurs because Ti+3/Ti+4 catalizes the activity of iron and enhances iron‐dependent enzymes.
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