吲哚-3-乙酸和维生素 B1 对砷干预下玉米营养获取和籽油理化性质的共同影响

IF 3.9 3区生物学 Q1 PLANT SCIENCES

Journal of Plant Growth Regulation Pub Date : 2024-08-13 DOI:10.1007/s00344-024-11449-x

Muhammad Atif, Shagufta Perveen, Abida Parveen, Farah Saeed

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引用次数: 0

摘要

人类或自然活动使根瘤菌层容易受到重金属（loid）的胁迫，这涉及植物体内矿物质-养分易位的波动动态。为了控制植物的养分缺乏和生长，使用植物激素和维生素可以有效调解在砷污染土壤中种植的作物的逆转效应。目前的试验设法通过叶面喷施 0.03 mM 的吲哚-3-乙酸（I3A）和 250 mg/L 的维生素 B1（Vit.B1）来逆转砷应激对玉米（Zea mays L.）栽培品种（cv. Pearl 和 cv. Akbar）在不同砷水平（50、100 mg/kg）下的毒性后果。施加砷胁迫（100 毫克/千克）后，珠玉和阿克巴两个品种的嫩茎（119.23 倍、126.38 倍）和根（82.03 倍、90.69 倍）中的砷含量增加，而同时施加维生素 B1 和 I3A 会分别减少嫩茎（1.66 倍、1.31 倍）和根（2.05 倍、1.33 倍）中的砷吸收。Akbar 和 cv.在 As 水平（100 毫克/千克）下，Akbar 品种和珍珠品种的芽和根（分别为 1.66 倍和 1.31 倍）和（2.05 倍和 1.33 倍）。此外，Vit.B1 和 I3A 的联合施用还显著提高了芽中矿物质的吸收量：钾（59.7，55.33%）、钙（30，28.5%）、磷（80.86，70.37%）、氮（32.52，29.87%）、亚铁（50.71，34.81%）、锰（8.41，2.26%），以及种子油的理化性质，如油的皂化值（42.同时，油的不皂化值（39.32，24.49%）、对位脒值（22.39，16.52%）、油的密度（16.36，14.16%）和油的游离脂肪酸（38.10，35.98%）分别降低。珍珠 "和 "阿克巴在压力水平（100 毫克/千克）下，珍珠品种和 Akbar 品种的油脂密度（16.36、14.16）和油脂游离脂肪酸（38.10、35.98%）分别有所提高。总体结果表明，应用维生素 B1 和 I3A 可提高玉米对养分的吸收和种子油的质量，从而抵御干旱胁迫。不过，仍需进行大量研究，并应进行开放式田间试验，以揭示 Vit.B1 和 I3A 在分子水平上的潜在作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Conjoint effect of indole-3-acetic acid and vitamin B1 on nutrient acquisition and seed oil physicochemical properties of Zea mays L. under arsenic intervention

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Conjoint effect of indole-3-acetic acid and vitamin B1 on nutrient acquisition and seed oil physicochemical properties of Zea mays L. under arsenic intervention

Human or natural activities have made the rhizosphere prone to heavy metal (loid) stresses that involve the fluctuating dynamics of mineral-nutrient translocation in plants. To control the nutrient deficiency and growth of plants, the use of plant hormones and vitamins can effectively mediate the reverse effects of crops grown in As-contaminated soils. The current trial was managed to reverse the toxic sequels of As-stress with foliar application of 0.03 mM of indole-3-acetic acid (I3A) and 250 mg/L of vitamin B1 (Vit.B1) in maize (Zea mays L.) cultivars (cv. Pearl and cv. Akbar) under diverse As- levels (50, 100 mg/kg). Applied As-stress (100 mg/kg) increased As-levels in shoot (119.23-fold, 126.38-fold), and root (82.03-fold, 90.69-fold), while Vit.B1 and I3A combined application reduced the As-uptake in shoot (1.66-fold, 1.31-fold) and root (2.05-fold, 1.33-fold), respectively, of cv. Akbar and cv. Pearl under As-level (100 mg/kg). Furthermore, combined application of Vit.B1and I3A significantly increased the uptake of shoot minerals; potassium (59.7, 55.33%), calcium (30, 28.5%), phosphorus (80.86, 70.37%), nitrogen (32.52, 29.87%), ferrous (50.71, 34.81%), manganese (8.41, 2.26%), and seed oil physicochemical properties such as oil saponification values (42.15, 61.35%), iodine values (40.96, 38.52%), refractive index (42.67, 29. 45%),while decreasing the oil unsponifiable values (39.32, 24.49%), para-ansidine values (22.39, 16.52%), oil density (16.36, 14.16%) and oil free fatty acids (38.10, 35.98%), respectively, of cv. Pearl and cv. Akbar under As-stress level (100 mg/kg). Overall outcomes encourage the application of Vit.B1 and I3A in enhancing the nutrient uptake and seed oil quality in maize to counter As-stress. However, much investigation is still required, and open field trials should be managed to unveil the putative role of Vit.B1 and I3A at the molecular level.

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来源期刊

Journal of Plant Growth Regulation 生物-植物科学

CiteScore

8.40

自引率

6.20%

发文量

312

审稿时长

1.8 months

期刊介绍： The Journal of Plant Growth Regulation is an international publication featuring original articles on all aspects of plant growth and development. We welcome manuscripts reporting question-based research on various aspects of plant growth and development using hormonal, physiological, environmental, genetic, biophysical, developmental and/or molecular approaches. The journal also publishes timely reviews on highly relevant areas and/or studies in plant growth and development, including interdisciplinary work with an emphasis on plant growth, plant hormones and plant pathology or abiotic stress. In addition, the journal features occasional thematic issues with special guest editors, as well as brief communications describing novel techniques and meeting reports. The journal is unlikely to accept manuscripts that are purely descriptive in nature or reports work with simple tissue culture without attempting to investigate the underlying mechanisms of plant growth regulation, those that focus exclusively on microbial communities, or deal with the (elicitation by plant hormones of) synthesis of secondary metabolites.