Duran Ragbet Ezgi, Kilic Semra, Coskun Yasemin
Faculty of Arts and Sciences, Biology Department, Suleyman Demirel University, Isparta 32 260, Turkey.
Faculty of Arts and Sciences, Biology Department, Suleyman Demirel University, Isparta 32 260, Turkey.
Pestic Biochem Physiol. 2015 Oct;124:15-20. doi: 10.1016/j.pestbp.2015.03.011. Epub 2015 Apr 1.
The aim of this study was to investigate the effect of the deltamethrin pesticide on the biological properties of maize (Zea mays L. saccharata Sturt). Maize seeds were exposed to environmentally relevant dosages (0.01, 0.05, 0.1 and 0.5 ppm) of deltamethrin. On the 7th day of germination, morphological, anatomical and physiological responses were determined. All seedling growth characters were decreased with increasing deltamethrin levels. The most negative effect on the radicle length of maize was observed by the highest deltamethrin concentration with a 61% decrease (P <0.05). Both stomatal density and stomatal dimension reduction were caused by increasing concentrations of deltamethrin. Moreover, the pigments like chlorophyll a, chlorophyll b, total chlorophyll and caretonoids decreased with the increase in deltamethrin concentration. Conversely, anthocyanin and proline content increased in parallel with deltamethrin concentration. As a result, all morphological traits and pigments except for proline and anthocyanin were significantly reduced with an increase in pesticide concentration, compared to control (P <0.05).
本研究的目的是调查溴氰菊酯农药对甜玉米（Zea mays L. saccharata Sturt）生物学特性的影响。将玉米种子暴露于环境相关剂量（0.01、0.05、0.1和0.5 ppm）的溴氰菊酯中。在发芽第7天，测定形态、解剖和生理反应。随着溴氰菊酯水平的增加，所有幼苗生长特征均降低。在最高溴氰菊酯浓度下观察到对玉米胚根长度的负面影响最大，降低了61%（P<0.05）。溴氰菊酯浓度增加导致气孔密度和气孔尺寸减小。此外，叶绿素a、叶绿素b、总叶绿素和类胡萝卜素等色素随着溴氰菊酯浓度的增加而减少。相反，花青素和脯氨酸含量随溴氰菊酯浓度平行增加。结果，与对照相比，除脯氨酸和花青素外，所有形态特征和色素均随着农药浓度的增加而显著降低（P<0.05）。
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