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Nanoselenium Foliar Applications Enhance the Nutrient Quality of Pepper by Activating the Capsaicinoid Synthetic Pathway.
Journal of Agricultural and Food Chemistry ( IF 5.7 ) Pub Date : 2020-08-18 , DOI: 10.1021/acs.jafc.0c03044 Dong Li 1 , Chunran Zhou 1 , Jingbang Zhang 1 , Quanshun An 1 , Yangliu Wu 1 , Jia-Qi Li 1 , Canping Pan 1
Journal of Agricultural and Food Chemistry ( IF 5.7 ) Pub Date : 2020-08-18 , DOI: 10.1021/acs.jafc.0c03044 Dong Li 1 , Chunran Zhou 1 , Jingbang Zhang 1 , Quanshun An 1 , Yangliu Wu 1 , Jia-Qi Li 1 , Canping Pan 1
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Increasing the crop quality through enhancement of plant health is a challenging task. In this study, nanoselenium (nano-Se) was sprayed on pepper leaves, and the pepper components were compared to those of selenite. It was found that nano-Se (20 mg/L) resulted in a greater performance of plant health. It increased the chlorophyll and soluble sugar levels, which could activate phenylpropane and branched-chain fatty acid pathways, as well as AT3-related enzymes and gene expressions. These led to an enhancement for the synthesis of capsaicinoids, flavonoids, and total phenols. The nano-Se treatment also significantly promoted the expression of phyto-hormones synthesis genes, and consequently increased jasmonic, abscisic, and salicylic acid levels. Proline pathway-related compounds were increased, which could decrease the malondialdehyde and hydroxyl radical levels in crops. This study shows that nano-Se activated capsaicinoid pathways by enhancing photosynthesis and raising soluble sugar levels. The capsaicinoid contents in peppers were then increased, which consequently promoted the accumulation of secondary metabolites and antioxidants.
中文翻译：
纳米硒叶的应用通过激活辣椒素合成途径来提高辣椒的营养品质。
通过增强植物健康来提高作物品质是一项艰巨的任务。在这项研究中，将纳米硒（nano-Se）喷在胡椒叶上，并将胡椒成分与亚硒酸盐进行比较。发现纳米硒（20 mg / L）可提高植物健康水平。它增加了叶绿素和可溶性糖水平，可以激活苯丙烷和支链脂肪酸途径以及AT3-相关的酶和基因表达。这些导致辣椒素，类黄酮和总酚的合成得到增强。纳米硒处理还显着促进了植物激素合成基因的表达，并因此提高了茉莉酸，脱落酸和水杨酸水平。脯氨酸途径相关的化合物增加，可能会降低农作物中的丙二醛和羟自由基水平。这项研究表明，纳米硒通过增强光合作用和提高可溶性糖水平来激活辣椒素途径。辣椒中的辣椒素含量随后增加，从而促进了次生代谢产物和抗氧化剂的积累。
更新日期：2020-09-16
中文翻译：
纳米硒叶的应用通过激活辣椒素合成途径来提高辣椒的营养品质。
通过增强植物健康来提高作物品质是一项艰巨的任务。在这项研究中，将纳米硒（nano-Se）喷在胡椒叶上，并将胡椒成分与亚硒酸盐进行比较。发现纳米硒（20 mg / L）可提高植物健康水平。它增加了叶绿素和可溶性糖水平，可以激活苯丙烷和支链脂肪酸途径以及AT3-相关的酶和基因表达。这些导致辣椒素，类黄酮和总酚的合成得到增强。纳米硒处理还显着促进了植物激素合成基因的表达，并因此提高了茉莉酸，脱落酸和水杨酸水平。脯氨酸途径相关的化合物增加，可能会降低农作物中的丙二醛和羟自由基水平。这项研究表明，纳米硒通过增强光合作用和提高可溶性糖水平来激活辣椒素途径。辣椒中的辣椒素含量随后增加，从而促进了次生代谢产物和抗氧化剂的积累。
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