暴露于大气的Bixa orellana L. (Bixaceae) 的形态解剖学和代谢变化
Thamires Fernanda Gomes1, Franklin Patrocínio Rezende1, Ademir Martins Lima2
1Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Av. P.H. Rolfs, S/N, Campus Universitário, Viçosa, Minas GeraisCEP, 36570-900, Brazil.
Environmental science and pollution research international
|March 25, 2025
概括
暴露于 (F) 的Bixa orellana植物显示出显著的损伤,包括光合作用减少和细胞死亡. 这表明了物种.
科学领域:
- 环境毒理学环境毒理学
- 植物生理学 植物生理学
- 生物监测 生物监测
背景情况:
- (F) 是对植物有毒的元素,即使在低度下也是如此.
- 巴西有许多人为源,但很少有本地植物物种被研究了它们的反应.
- Bixa orellana是一种南美本土物种,在经济上对色素生产至关重要.
研究的目的:
- 为了评估 (F) 暴露对Bixa orellana的影响.
- 为了确定Bixa orellana是否可以作为大气的植物指标.
主要方法:
- B. orellana植物被暴露在模拟降雨中,其度不同 (0,10,20,40毫克/升).
- 评估视力损伤,气体交换 (二氧化碳同化,口腔导电性,呼吸),光合作用色素和度.
- 在叶片样本上进行光和扫描电子显微镜,以及细胞死亡测定.
主要成果:
- 在B. orellana的叶子中的度随着暴露水平的增加而增加.
- 观察到二氧化碳同化,口腔导电性,呼吸和光合作用颜料的显著减少.
- 可见的损伤包括化,死亡,纹,缩的表皮细胞,受损的三体和细胞质溶解,在所有F治疗组中证实了细胞死亡.
结论:
- Bixa orellana对极为敏感,对的存在表现出迅速的反应.
- 观察到的解剖和生理损伤证实了对这种物种的毒性.
- 在生物监测计划中,B. orellana显示出作为大气的植物指标物种的潜力.
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