Hussein Hebat-Allah A
Botany and Microbiology Department, Faculty of Science (Girls Branch), Al Azhar University, Cairo, 11751, Egypt.
Biology Department, University College of Nairiyah, University of Hafr Al Batin (UHB), Nairiyah, 31991, Saudi Arabia.
Biotechnol Rep (Amst). 2022 Mar 24;34:e00724. doi: 10.1016/j.btre.2022.e00724. eCollection 2022 Jun.
The study aimed to examine the influence of different doses (0, 5, 10, and 20 Gray) of gamma radiation on growth, yield traits, and biochemical constituents of barley plants. The low doses (5 and 10 Gy) significantly improved the growth and yield of barley crop. Surprisingly, a higher dose (20 Gy) increased shoot growth and tillers number. Photosynthetic pigments were increased markedly at low doses (5 Gy) whereas decreased at high one. Gamma radiation enhanced total phenols, total flavonoids, total amino acids, antioxidant enzymes and HO. In addition, the protein profile showed varies in response depending on the applied dose. Conversely, gamma rays resulted in lower total sugars and proline than the corresponding control values. Ultimately, the modified antioxidant potential, protein pattern, and metabolic changes of barley exhibited the effectiveness of low doses of gamma irradiation in improving growth, and yield of barley plants.
该研究旨在考察不同剂量（0、5、10和20戈瑞）的伽马辐射对大麦植株生长、产量性状及生化成分的影响。低剂量（5和10戈瑞）显著提高了大麦作物的生长和产量。令人惊讶的是，较高剂量（20戈瑞）增加了地上部生长和分蘖数。光合色素在低剂量（5戈瑞）时显著增加，而在高剂量时减少。伽马辐射提高了总酚、总黄酮、总氨基酸、抗氧化酶和过氧化氢。此外，蛋白质谱根据所施加的剂量呈现出不同的响应。相反，伽马射线导致总糖和脯氨酸含量低于相应的对照值。最终，大麦抗氧化潜力、蛋白质模式和代谢的改变显示出低剂量伽马辐射在改善大麦植株生长和产量方面的有效性。
