Kapoor Dhriti, Singh Mahendra P, Kaur Satwinderjeet, Bhardwaj Renu, Zheng Bingsong, Sharma Anket
Department of Botanical & Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, Punjab, India.
School of Bioengineering and Biosciences, Lovely Professional University, Delhi-Jalandhar Highway Phagwara 144411, Punjab, India.
Plants (Basel). 2019 Jul 31;8(8):260. doi: 10.3390/plants8080260.
: Heavy metals (including Cadmium) are being entered into the environment through various sources and cause toxicity to plants. Response of L. var. RLC-1 was evaluated after exposing them to different concentration of cadmium (Cd) for seven days. Seeds of were treated with different concentrations of Cd like 0.2-0.6 mM for 7 days, allowing them to grow in Petri-dishes, and seedlings were examined for different physiological responses. Following exposure to Cd, in the seedlings of growth parameters (root and shoot length), stress markers (lipid peroxidation and HO content), secondary metabolites, photosynthetic pigments, and ion analysis, were estimated along with enzymatic and non-enzymatic antioxidants. We observed a significant reduction in root and shoot length after Cd treatment as compared to control seedlings. Malondialdehyde and HO contents were increased accompanied by enhanced Cd uptake. Activities of antioxidative enzymes were also significantly altered following Cd exposure to the seedlings of . Conclusively, we suggest that Cd exposure to the seedlings triggered an induction of several defense responses in including major metabolites.
重金属（包括镉）正通过各种来源进入环境并对植物产生毒性。在将它们暴露于不同浓度的镉（Cd）7天后，评估了L. var. RLC-1的反应。用不同浓度的Cd（如0.2 - 0.6 mM）处理种子7天，使其在培养皿中生长，并检查幼苗的不同生理反应。暴露于Cd后，对幼苗的生长参数（根和茎长度）、应激标记物（脂质过氧化和HO含量）、次生代谢物、光合色素和离子分析进行了评估，同时还评估了酶促和非酶促抗氧化剂。与对照幼苗相比，我们观察到Cd处理后根和茎长度显著减少。丙二醛和HO含量增加，同时Cd吸收增强。在幼苗暴露于Cd后，抗氧化酶的活性也发生了显著变化。总之，我们认为，幼苗暴露于Cd会引发包括主要代谢物在内的几种防御反应的诱导。
