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首页> 外文期刊>European Journal of Agronomy >Sulphur fertilization may improve the nutritional value of Brassica rapa L. subsp. sylvestris.
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Sulphur fertilization may improve the nutritional value of Brassica rapa L. subsp. sylvestris.

机译：硫肥可提高小白菜的营养价值。樟子松。

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摘要

Sulphur is essential in the biosynthesis of secondary metabolites with high nutritional value that typically accumulate in brassica species. Among these, glucosinolates are the most representative. The level of glucosinolates in these plants is highly dependent on genetic factors as well as environmental determinants, such as the available soil sulphur content. There is an increasing need of defining the metabolic profile of brassica species in response to both cultivation practices and environmental factors since a targeted modification of its constituents may significantly affect the functional properties and the commercial value of these vegetables. Here, we report on the effects of sulphur fertilization on flavonols, phenolic acids and glucosinolates contents of two friariello (Brassica rapa L. subsp. sylvestris L. Janch. var. esculenta Hort.) ecotypes - Lingua di Cane and Sorrentino. Friariello quality in terms of sprouts plus inflorescence nitrate and chlorophyll contents was also assessed. We found a significantly higher flavonols content in the ecotype Sorrentino, whereas its glucosinolates level was relatively smaller compared to Lingua di Cane. Sulphur fertilization significantly improved the antioxidant activity of both ecotypes and was associated with a genotype-dependent significant reduction of leaf nitrate content..
机译：硫在具有较高营养价值的次级代谢产物的生物合成中必不可少，这些代谢产物通常在芸苔属物种中积累。其中，芥子油苷是最具代表性的。这些植物中的芥子油苷水平高度取决于遗传因素以及环境决定因素，例如土壤中的有效硫含量。越来越有必要根据栽培习惯和环境因素来确定芸苔属植物的代谢特性，因为对其成分的靶向修饰可能会显着影响这些蔬菜的功能特性和商业价值。在这里，我们报道了硫磺施肥对两种生态菜籽（林瓜迪甘蔗和索伦蒂诺）的黄酮醇，酚酸和芥子油苷含量的影响。还评估了芽菜加花序硝酸盐和叶绿素含量方面的Friariello质量。我们发现生态型索伦蒂诺中的黄酮醇含量明显更高，而其芥子油苷水平则比林瓜迪甘蔗要小。硫肥可显着提高两种生态型的抗氧化活性，并与基因型相关的叶片硝酸盐含量显着降低有关。

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