Impact of IAA Application on Growth and Biochemical Aspects of Silybum marianum (L.) Gaertn. Under Lead Stress

被引：1
|
作者：
Bhardwaj S. [1 ,2 ]
Sharma A. [2 ]
Kapoor D. [1 ]
Kumar N. [3 ]
机构：
[1] Department of Botany, School of Bioengineering and Biosciences, Lovely Professional University, Punjab, Phagwara
[2] Division Botany, Department of Bio-Sciences, Career Point University, Himachal Pradesh, Hamirpur
[3] Department of Bioscience, Himachal Pradesh University, Himachal Pradesh, Shimla
来源：
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences | 2023年 / 93卷 / 3期
关键词：
Biochemical; Growth; Indole-3 acetic acid; Lead; Phytotoxicity;
D O I：
10.1007/s40011-023-01465-4
中图分类号：
学科分类号：
摘要：
In the present experiment, Indole-3-acetic acid (IAA)-mediated alleviation of lead (Pb) stress was investigated by analyzing the morphological, biochemical aspects and lead (Pb) metal uptake in Silybum marianum under Pb stress. Pb was applied in the form of lead acetate at concentration of 0.5 mM in the soil and IAA at 25, 50 and 100 ppm concentration. Pb stress significantly declined the S. marianum growth and biochemical aspects while application of IAA reversed this effect under Pb toxicity. IAA application also reduced the Pb uptake in which minimum Pb uptake of 12.10 µg g−1 was at 50 ppm under Pb stress after 60 DAS. It was concluded from the study that Pb stress can be mitigated successfully by the exogenous application of plant growth regulator, i.e., IAA. © 2023, The Author(s), under exclusive licence to The National Academy of Sciences, India.
引用
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页码：603 / 609
页数：6
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