Ningombam Linthoingambi, Hazarika Budhindra Nath, Singh Siddhartha, Wangchu Lobsang, Bhutia Nangsol Dolma, Heisnam Punabati, Das Shubranil, Yumkhaibam Tabalique, Anush Sheikh K H
Department of Fruit Science, College of Horticulture and Forestry, CAU (I), Pasighat, Arunachal Pradesh 791102 India.
Department of Basic Sciences and Humanities, College of Horticulture and Forestry, CAU (I), Pasighat, Arunachal Pradesh 791102 India.
Physiol Mol Biol Plants. 2024 Dec;30(12):2065-2075. doi: 10.1007/s12298-024-01536-4. Epub 2024 Dec 8.
An experiment was performed to understand the effects of aluminium toxicity (AlCl·6HO) on Kachai lemon growth and development. The toxic effects of aluminium were assessed for 45 days in sand media. With untreated pots serving as the control, seedlings of 1 month old were exposed to three concentrations of AlCl·6HO: 300 μM, 600 μM and 900 μM. The nutrient Hoagland solution was also given to seedlings along with the Aluminium (Al) treatment. The outcome demonstrated that the chlorophyll content and carotenoids declined with the increase of the concentration levels of AlCl·6HO and interval of treatment. The contents of O (Super oxide anion), HO (Hydrogen peroxide) and OH (Hydroxyl radical) in seedlings increased with the higher concentration levels of aluminium and longer exposure to Al. Additionally, the activity of the enzymes catalase, superoxide dismutase, ascorbate peroxidase, peroxidase and glutathione reductase were increased in seedlings. Different non-enzymatic antioxidants' actions like tocopherol and Vitamin C played important defence mechanisms for the maintenance of tolerance in aluminium toxicity by increasing their content with an increase in the concentration of treatment levels in Kachai Lemon.
进行了一项实验，以了解铝毒性（AlCl·6H₂O）对卡柴柠檬生长发育的影响。在沙质培养基中评估铝的毒性作用45天。以未处理的花盆作为对照，将1月龄的幼苗暴露于三种浓度的AlCl·6H₂O：300μM、600μM和900μM。在进行铝（Al）处理的同时，也给幼苗提供了营养霍格兰溶液。结果表明，随着AlCl·6H₂O浓度水平的增加和处理间隔时间的延长，叶绿素含量和类胡萝卜素含量下降。随着铝浓度水平的升高和幼苗暴露于铝的时间延长，幼苗中O₂⁻（超氧阴离子）、H₂O₂（过氧化氢）和·OH（羟基自由基）的含量增加。此外，幼苗中过氧化氢酶、超氧化物歧化酶、抗坏血酸过氧化物酶、过氧化物酶和谷胱甘肽还原酶的活性增加。不同的非酶抗氧化剂如生育酚和维生素C的作用，通过随着卡柴柠檬处理水平浓度的增加而增加其含量，在维持对铝毒性的耐受性方面发挥了重要的防御机制。
