Kaya Yusuf, Aksakal Ozkan, Sunar Serap, Erturk Filiz Aygun, Bozari Sedat, Agar Guleray, Erez Mehmet Emre, Battal Peyami
Department of Biology, Faculty of Science, Atatürk University, Erzurum, Turkey.
Department of Biology, Faculty of Science, Atatürk University, Erzurum, Turkey
Toxicol Ind Health. 2015 Mar;31(3):247-54. doi: 10.1177/0748233712471702. Epub 2013 Jan 4.
Laboratory experiments were performed to determine phytotoxic potentials of white top (Lepidium draba) methanol extracts (root, stem and leaf) on germination and early growth of corn (Zea mays) and redroot pigweed (Amaranthus retroflexus). Furthermore, the effects of different methanol extracts of L. draba on the phytohormone (indole-3-acetic acid (IAA), gibberellic acid (GA), abscisic acid (ABA) and zeatin) levels of corn and redroot pigweed were investigated. It was observed that all concentrations of methanol extracts of root, stem and leaf of L. draba inhibited germination, radicle and plumule elongation when compared with the respective controls. Besides this, the degree of inhibition was increased in concert with increasing concentrations of extracts used. On the other hand, phytohormone levels changed with the application of different extract concentrations. Comparing with the control, the GA levels significantly decreased while the ABA levels increased in all the application groups. Zeatin and IAA levels showed changes depending upon the applied extracts and concentrations.
进行了实验室实验，以确定白顶芥（Lepidium draba）甲醇提取物（根、茎和叶）对玉米（Zea mays）和反枝苋（Amaranthus retroflexus）发芽和早期生长的植物毒性潜力。此外，还研究了白顶芥不同甲醇提取物对玉米和反枝苋植物激素（吲哚-3-乙酸（IAA）、赤霉素（GA）、脱落酸（ABA）和玉米素）水平的影响。观察到，与各自的对照相比，白顶芥根、茎和叶的所有浓度甲醇提取物均抑制发芽、胚根和胚芽伸长。除此之外，抑制程度随着所用提取物浓度的增加而增加。另一方面，植物激素水平随不同提取物浓度的应用而变化。与对照相比，所有应用组中GA水平显著降低，而ABA水平升高。玉米素和IAA水平根据所用提取物和浓度而变化。
