Publications by authors named "Silvia Vaccaro"
Sprouting angiogenesis is fundamental for development and contributes to cancer, diabetic retinopathy, and cardiovascular diseases. Sprouting angiogenesis depends on the invasive properties of endothelial tip cells. However, there is very limited knowledge on how tip cells invade into tissues.
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- A high molecular weight humic fraction was analyzed using DRIFT and 1H NMR spectroscopy and tested on Zea mays L. to assess its impact on phenylpropanoid metabolism.
- The study found that adding 1 mg C/l of the humic substance maximized the activity and gene expression of key enzymes (PAL/TAL), leading to a significant decrease in phenylalanine and tyrosine levels, while increasing phenolic compounds in the plants.
- The effects of the humic fraction were partially attributed to indoleacetic acid present in it, marking the first evidence of a link between humic substances and the phenylpropanoid metabolic pathway.
The growing concern on long-term productivity of agroecosystems has emphasized the need to develop management strategies to maintain and protect soil resources, particularly soil organic matter (SOM). Among these, the composting process allows both recycling of the increasing amount of organic waste materials and restoration of the content of organic matter in soil. A sequential chemical fractionation into structurally unbound (SU), weakly bound (WB) and strongly bound (SB) compounds was applied to a bulk compost, and its soluble fractions were extracted in water, either after oxidation of compost suspension with an oxygen flux (TEA), or without oxidation but separated into hydrophilic (HiDOM) and hydrophobic (HoDOM) components.
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