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首页> 外文期刊>Journal of Applied Phycology >Ascophyllum nodosum-based algal extracts act as enhancers of growth, fruit quality, and adaptation to stress in salinized tomato plants
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Ascophyllum nodosum-based algal extracts act as enhancers of growth, fruit quality, and adaptation to stress in salinized tomato plants

机译:基于藻类的藻类提取物作为生长,果实质量和适应盐渍化番茄植物的增强剂的增强剂

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摘要

Seaweed extracts (SWE) are widely used to improve plant growth, fruit quality, and stress tolerance. However, the functional link between the complex composition of algal-based products and their mechanisms of action has been only marginally addressed. A greenhouse experiment was performed on Microtom tomato plants in order to evaluate the effect of two Ascophyllum nodosum-based algal derivatives, Rygex (R) and Super Fifty (SF), on a tomato exposed to salinity (0, 42.5, and 85 mM NaCl) and normal and reduced nutrient availability (100 and 70% of the standard regimen). Bioactive compounds, with possible beneficial effects on growth and stress adaptation, were characterized via gas chromatography-mass spectrometry analysis (GC-MS). Enhanced growth of 13% was observed with Super Fifty treatment under a full-strength nutritional regimen, independent of the salinity treatment. Although Rygex and Super Fifty treatments did not significantly enhance plant growth and yield under salt treatment, they enhanced the accumulation of minerals, antioxidants, and essential amino acids in tomato fruits, with an overall improvement in nutritional value. Overall, SWE may affect and ameliorate different aspects of nutrition and stress tolerance and thus contribute to the sustainability of agricultural systems. Elucidating the link between bioactive compounds in SWE and plant responses will be critical to characterizing the mechanism of action of SWE.
机译:海藻提取物(SWE)被广泛用于改善植物生长、果实品质和抗逆能力。然而,藻类产品的复杂成分与其作用机制之间的功能联系只得到了少量的研究。在微型番茄植株上进行温室试验,以评估两种基于子囊藻的海藻衍生物Rygex(R)和Super-50(SF)对暴露于盐度(0、42.5和85 mM NaCl)和正常和降低的营养有效性(标准方案的100%和70%)的番茄的影响。通过气相色谱-质谱分析(GC-MS)对可能对生长和应激适应有益的生物活性化合物进行了表征。在全强度营养方案下,Super-Five处理的生长增强了13%,与盐度处理无关。尽管在盐处理下,Rygex和Super-50处理并没有显著提高植物生长和产量,但它们促进了番茄果实中矿物质、抗氧化剂和必需氨基酸的积累,总体上提高了营养价值。总的来说,SWE可能会影响和改善营养和应激耐受的不同方面,从而有助于农业系统的可持续性。阐明SWE中的生物活性化合物与植物反应之间的联系将是表征SWE作用机制的关键。

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