PDF(Pubmed)
Abstract：
UNASSIGNED: Naringenin based nanocomposite alleviate the harmful effects of drought stress in Cuminum cyminum and enhance carefully the plant tolerance against drought condition with different mechanisms.
UNASSIGNED: In the recent years, drought stress is considered as one of the most important stressful conditions for agricultural plants. Reducing the effects of drought on plants is a crucial need nowadays, which calls for innovative methods. Naringenin is one of the most known plant flavonoids with antioxidant properties. In the present work, a naringenin based nanocomposite containing carboxymethylcellulose (CMC) as carrier (CMC-Nar) with an average size of 65 nm were synthesized by coacervation method. In order to investigate the effect of CMC nanocomposites containing naringenin (CMC-Nar) and pure naringenin in modulating the effects of drought stress, cultivation of Cuminum cyminum (varieties: Isfahan and Kashan) was carried out in greenhouse conditions. Drought stress was imposed as 30% of the field capacity. Various physiological, biochemical, and phytochemical assays were performed after treating the plants in drought conditions (30%). The results indicated that treatment of nanocomposites (CMC-Nar) and pure naringenin at drought conditions increased growth and photosynthetic parameters such as germination, shoot and root fresh weight, shoot dry weight, and chlorophyll content of the Cumin. Stress markers such as malondialdehyde, H2O2, and electrolyte leakage decreased under the treatment of narinjenin and especially nanocomposites (CMC-Nar) under drought conditions. Moreover, under same condition and treatments, some biochemical parameters including soluble sugar and total protein increased but the activity of antioxidant enzymes and the level of free amino acids has gone down. Compatible Solutes (Proline and glycine betaine) also increased. There was an increase in phytochemical parameters such as total phenols, flavonoids, anthocyanin, and tannins under naringenin and nanocomposites (CMC-Nar) treatment in drought conditions. In general, nanocomposites and pure naringenin reduced the harmful effects of drought stress, and the ameliorating impacts of nanocomposites (CMC-Nar) are more than pure naringenin. According to the results: In most cases, the impact of drought stress was modulated to a greater extent by (CMC-Nar) nanocomposites in the Isfahan variety compared to the Kashan variety. This research tries to propose a new method to reduce the effects of drought stress on Cuminum cyminum.
UNASSIGNED: The online version contains supplementary material available at 10.1007/s12298-024-01460-7.
UNASSIGNED: In the recent years, drought stress is considered as one of the most important stressful conditions for agricultural plants. Reducing the effects of drought on plants is a crucial need nowadays, which calls for innovative methods. Naringenin is one of the most known plant flavonoids with antioxidant properties. In the present work, a naringenin based nanocomposite containing carboxymethylcellulose (CMC) as carrier (CMC-Nar) with an average size of 65 nm were synthesized by coacervation method. In order to investigate the effect of CMC nanocomposites containing naringenin (CMC-Nar) and pure naringenin in modulating the effects of drought stress, cultivation of Cuminum cyminum (varieties: Isfahan and Kashan) was carried out in greenhouse conditions. Drought stress was imposed as 30% of the field capacity. Various physiological, biochemical, and phytochemical assays were performed after treating the plants in drought conditions (30%). The results indicated that treatment of nanocomposites (CMC-Nar) and pure naringenin at drought conditions increased growth and photosynthetic parameters such as germination, shoot and root fresh weight, shoot dry weight, and chlorophyll content of the Cumin. Stress markers such as malondialdehyde, H2O2, and electrolyte leakage decreased under the treatment of narinjenin and especially nanocomposites (CMC-Nar) under drought conditions. Moreover, under same condition and treatments, some biochemical parameters including soluble sugar and total protein increased but the activity of antioxidant enzymes and the level of free amino acids has gone down. Compatible Solutes (Proline and glycine betaine) also increased. There was an increase in phytochemical parameters such as total phenols, flavonoids, anthocyanin, and tannins under naringenin and nanocomposites (CMC-Nar) treatment in drought conditions. In general, nanocomposites and pure naringenin reduced the harmful effects of drought stress, and the ameliorating impacts of nanocomposites (CMC-Nar) are more than pure naringenin. According to the results: In most cases, the impact of drought stress was modulated to a greater extent by (CMC-Nar) nanocomposites in the Isfahan variety compared to the Kashan variety. This research tries to propose a new method to reduce the effects of drought stress on Cuminum cyminum.
UNASSIGNED: The online version contains supplementary material available at 10.1007/s12298-024-01460-7.
摘要：
■基于柚皮素的纳米复合材料可以缓解乌草中干旱胁迫的有害影响，并通过不同的机制仔细增强植物对干旱条件的耐受性。
■近年来，干旱胁迫被认为是农业植物最重要的胁迫条件之一。减少干旱对植物的影响是当今的关键需求，这就需要创新的方法。柚皮素是具有抗氧化特性的最著名的植物类黄酮之一。在目前的工作中,通过凝聚法合成了以羧甲基纤维素（CMC）为载体的柚皮素基纳米复合材料（CMC-Nar），其平均粒径为65nm。为了研究含柚皮素的CMC纳米复合材料(CMC-Nar)和纯柚皮素在调节干旱胁迫效应中的作用,在温室条件下进行CuminumCuminum（品种：Isfahan和Kashan）的种植。干旱胁迫被施加为田间能力的30％。各种生理，生物化学，在干旱条件下（30％）处理植物后进行植物化学测定。结果表明，在干旱条件下处理纳米复合材料（CMC-Nar）和纯柚皮素增加了生长和光合参数，如发芽，芽和根的鲜重，芽干重，孜然的叶绿素含量。应激标志物如丙二醛，在干旱条件下，在narinjenin尤其是纳米复合材料（CMC-Nar）的处理下，H2O2和电解质泄漏减少。此外，在相同的条件和治疗下，一些生化指标，包括可溶性糖和总蛋白增加，但抗氧化酶的活性和游离氨基酸水平下降。相容的溶质(脯氨酸和甘氨酸甜菜碱)也增加。总酚等植物化学参数有所增加，黄酮类化合物，花青素,在干旱条件下，柚皮素和纳米复合材料（CMC-Nar）处理下的单宁。总的来说,纳米复合材料和纯柚皮素减少了干旱胁迫的有害影响，纳米复合材料(CMC-Nar)的改善效果比纯柚皮素还要好。根据结果：在大多数情况下，与Kashan品种相比，Isfahan品种的（CMC-Nar）纳米复合材料在更大程度上调节了干旱胁迫的影响。本研究试图提出一种新的方法来减轻干旱胁迫对乌梅的影响。
■在线版本包含补充材料，可在10.1007/s12298-024-01460-7获得。
■近年来，干旱胁迫被认为是农业植物最重要的胁迫条件之一。减少干旱对植物的影响是当今的关键需求，这就需要创新的方法。柚皮素是具有抗氧化特性的最著名的植物类黄酮之一。在目前的工作中,通过凝聚法合成了以羧甲基纤维素（CMC）为载体的柚皮素基纳米复合材料（CMC-Nar），其平均粒径为65nm。为了研究含柚皮素的CMC纳米复合材料(CMC-Nar)和纯柚皮素在调节干旱胁迫效应中的作用,在温室条件下进行CuminumCuminum（品种：Isfahan和Kashan）的种植。干旱胁迫被施加为田间能力的30％。各种生理，生物化学，在干旱条件下（30％）处理植物后进行植物化学测定。结果表明，在干旱条件下处理纳米复合材料（CMC-Nar）和纯柚皮素增加了生长和光合参数，如发芽，芽和根的鲜重，芽干重，孜然的叶绿素含量。应激标志物如丙二醛，在干旱条件下，在narinjenin尤其是纳米复合材料（CMC-Nar）的处理下，H2O2和电解质泄漏减少。此外，在相同的条件和治疗下，一些生化指标，包括可溶性糖和总蛋白增加，但抗氧化酶的活性和游离氨基酸水平下降。相容的溶质(脯氨酸和甘氨酸甜菜碱)也增加。总酚等植物化学参数有所增加，黄酮类化合物，花青素,在干旱条件下，柚皮素和纳米复合材料（CMC-Nar）处理下的单宁。总的来说,纳米复合材料和纯柚皮素减少了干旱胁迫的有害影响，纳米复合材料(CMC-Nar)的改善效果比纯柚皮素还要好。根据结果：在大多数情况下，与Kashan品种相比，Isfahan品种的（CMC-Nar）纳米复合材料在更大程度上调节了干旱胁迫的影响。本研究试图提出一种新的方法来减轻干旱胁迫对乌梅的影响。
■在线版本包含补充材料，可在10.1007/s12298-024-01460-7获得。
