The interactive effect of pH variation and cadmium stress on wheat (Triticum aestivum L.) growth, physiological and biochemical parameters
| العنوان: | The interactive effect of pH variation and cadmium stress on wheat (Triticum aestivum L.) growth, physiological and biochemical parameters |
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| المؤلفون: | Allah Ditta, Luqman Riaz, Abdur Rehim, Muhammad Amjad Bashir, Ghulam Yasin, Muhammad Shah Jahan, Shafeeq Ur Rahman, Umbreen Shahzad, Zhenjie Du, Adnan Noor Shah, Qi Xuebin |
| المصدر: | PLoS ONE, Vol 16, Iss 7, p e0253798 (2021) PLoS ONE |
| بيانات النشر: | Public Library of Science (PLoS), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Chlorophyll, Pigments, 0106 biological sciences, Leaves, Chloroplasts, Plant Science, 010501 environmental sciences, Toxicology, Pathology and Laboratory Medicine, Heavy Metals, Biochemistry, 01 natural sciences, Antioxidants, Soil, chemistry.chemical_compound, Nutrient, Hydroponics, Medicine and Health Sciences, Toxins, Soil Pollutants, Materials, Triticum, Cadmium, Multidisciplinary, Plant Anatomy, Eukaryota, food and beverages, Plants, Hydrogen-Ion Concentration, Chemistry, Wheat, Physical Sciences, Toxicity, Shoot, Medicine, Cellular Structures and Organelles, Cellular Types, Research Article, Chemical Elements, Plant Cell Biology, Science, Materials Science, Toxic Agents, chemistry.chemical_element, Animal science, Plant Cells, Grasses, Proline, 0105 earth and related environmental sciences, Organic Pigments, Organisms, Biology and Life Sciences, Cell Biology, Hydrogen Peroxide, Carotenoids, Bioavailability, chemistry, Seedlings, Osmoprotectant, 010606 plant biology & botany |
| الوصف: | Anthropogenic activities such as mining, manufacturing, and application of fertilizers release substantial quantities of cadmium (Cd) into the environment. In the natural environment, varying pH may play an important role in the absorption and accumulation of Cd in plants, which can cause toxicity and increase the risk to humans. We conducted a hydroponic experiment to examine the impact of pH on cadmium (Cd) solubility and bioavailability in winter wheat (Triticum aestivum L.) under controlled environmental conditions. The results showed that Cd concentration was significantly reduced in wheat with an increase in pH from 5 to 7, while it was dramatically increased at pH ranging from 7 to 9. However, in both cases, a significant reduction in physiological traits was observed. The addition of Cd (20, 50, and 200 μmol L-1) at all pH levels caused a substantial decline in wheat growth, chlorophyll and carotenoids contents, nutrient availability, while elevated cell membrane damage was observed in terms of electrolytic leakage (EL), osmoprotectants, and antioxidants activity. In our findings, the negative effects of acidic pH (5) on wheat growth and development were more pronounced in the presence of Cd toxicities. For instance, Cd concentration with 20, 50, and 200 μmol L-1 at acidic pH (5) reduced shoot dry biomass by 45%, 53%, and 79%, total chlorophyll contents by 26%, 41%, 56% while increased CAT activity in shoot by 109%, 175%, and 221%, SOD activity in shoot by 122%, 135%, and 167%, POD activity in shoot by 137%, 250%, and 265%, MDA contents in shoot by 51%, 83%, and 150%, H2O2 contents in shoot by 175%, 219%, and 292%, EL in shoot by 108%, 165%, and 230%, proline contents in shoot by 235%, 280%, and 393%, respectively as compared to neutral pH without Cd toxicities. On the other hand, neutral pH with Cd toxicities alleviated the negative effects of Cd toxicity on wheat plants by limiting Cd uptake, reduced reactive oxygen species (ROS) formation, and increased nutrient availability. In conclusion, neutral pH minimized the adverse effects of Cd stress by minimizing its uptake and accumulation in wheat plants. |
| اللغة: | English |
| تدمد: | 1932-6203 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::658f5be84c12fb2f49ee66ff819cf24bTest https://doaj.org/article/a7728e805ba041808c124ab7e5413fc9Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....658f5be84c12fb2f49ee66ff819cf24b |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19326203 |
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