Role of organic and inorganic amendments on physiological attributes of germinating pea seedlings under arsenic stress

被引:1
|
作者
Rafiq, Marina [1 ]
Shahid, Muhammad [1 ]
Bibi, Irshad [2 ]
Khalid, Sana [1 ]
Tariq, Tasveer Zahra [3 ]
Al-Kahtani, Abdullah A. [4 ]
Alothman, Zeid A. [4 ]
Murtaza, Behzad [1 ]
Niazi, Nabeel Khan [2 ]
机构
[1] COMSATS Univ Islamabad, Dept Environm Sci, Vehari Campus, Vehari 61100, Pakistan
[2] Univ Agr Faisalabad, Inst Soil & Environm Sci, Faisalabad, Pakistan
[3] Bahauddin Zakariya Univ, Dept Bot, Multan, Pakistan
[4] King Saud Univ, Coll Sci, Dept Chem, Riyadh, Saudi Arabia
关键词
Arsenic; calcium; EDTA; germinating seedlings; Pisum sativum; ROS; METAL SPECIATION; TOXICITY;
D O I
10.1080/15226514.2024.2305684
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
There are scarce data regarding the effects of soil amendments on biophysicochemical responses of plants at the early stages of growth/germination. This study critically compares the effects of ethylene-diamine-tetra-acetic-acid (EDTA) and calcium (Ca) on biophysicochemical responses of germinating pea seedlings under varied arsenic levels (As, 25, 125, 250 mu M). Arsenic alone enhanced hydrogen peroxide (H2O2) level in pea roots (176%) and shoot (89%), which significantly reduced seed germination percentage, pigment contents, and growth parameters. Presence of EDTA and Ca in growth culture minimized the toxic effects of As on pea seedlings, EDTA being more pertinent than Ca. Both the amendments decreased H2O2 levels in pea tissues (16% in shoot and 13% in roots by EDTA, and 7% by Ca in shoot), and maintained seed germination, pigment contents, and growth parameters of peas close to those of the control treatment. The effects of all As-treatments were more pronounced in the pea roots than in the shoot. The presence of organic and inorganic amendments can play a useful role in alleviating As toxicity at the early stages of pea growth. The scarcity of data demands comparing plant biophysicochemical responses at different stages of plant growth (germinating vs mature) in future studies.
引用
收藏
页码:1243 / 1252
页数:10
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