Krumova S, Petrova A, Koleva D, Petrova S, Stoichev S, Petrova N, Tsonev T, Petrov P, Velikova V
Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Sofia, Bulgaria.
Institute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, Sofia, Bulgaria.
Photosynthetica. 2023 Sep 25;61(4):432-440. doi: 10.32615/ps.2023.033. eCollection 2023.
Natural and synthetic polymers are widely explored for improving seed germination and plant resistance to environmental constraints. Here, for the first time, we explore stabilized nanomicelles composed of the biocompatible triblock co-polymer (SPM) as a priming agent for (var. RAN-1) seeds. We tested a wide concentration range of 0.04-30 g(SPM) L. Applying several structural and functional methods we revealed that the utilized nanomicelles can positively affect root length, without any negative effects on leaf anatomy and photosynthetic efficiency at 0.2 g L, while strong negative effects were recorded for 10 and 30 g(SPM) L concerning root length, leaf histology, and photoprotection capability. Our data strongly suggest that SPM can safely be utilized for seed priming at specific concentrations and are suitable objects for further loading with plant growth regulators.
天然和合成聚合物被广泛用于提高种子发芽率和植物对环境胁迫的抗性。在此，我们首次探索了由生物相容性三嵌段共聚物（SPM）组成的稳定纳米胶束作为（变种RAN-1）种子的引发剂。我们测试了0.04 - 30 g（SPM）/L的宽浓度范围。通过应用多种结构和功能方法，我们发现所使用的纳米胶束在0.2 g/L时可对根长产生积极影响，而对叶片解剖结构和光合效率无任何负面影响，而在10和30 g（SPM）/L时，根长、叶片组织学和光保护能力则出现强烈负面影响。我们的数据有力地表明，SPM可在特定浓度下安全地用于种子引发，并且是进一步负载植物生长调节剂的合适对象。
