Dipartimento di Biologia, Università di Napoli "Federico II"-Complesso Universitario di Monte Sant'Angelo, Via Cinthia 4, I-80126, Naples, Italy.
Dipartimento di Scienze della Vita, Università di Siena, Via Pier Andrea Mattioli, 453100, Siena, Italy.
Environ Sci Pollut Res Int. 2017 Dec;24(34):26185-26193. doi: 10.1007/s11356-017-9304-y. Epub 2017 May 31.
The liverwort Lunularia cruciata, known for being a species tolerant to pollution able to colonize urban areas, was collected in the town of Acerra (South Italy) to investigate the biological effects of air pollution in one of the three vertices of the so-called Italian Triangle of Death. The ultrastructural damages observed by transmission electron microscopy in specimens collected in Acerra were compared with samples collected in the city center of Naples and in a small rural site far from sources of air pollution (Riccia, Molise, Southern Italy). The biological response chain to air pollution was investigated considering vitality, photosynthetic efficiency, heat shock protein 70 (Hsp70) induction and gene expression levels, and chlorophyll degradation and related ultrastructural alterations. Particularly, a significant increment in Hsp70 expression and occurrence, and modifications in the chloroplasts' ultrastructure can be strictly related to the environmental pollution conditions in the three sites. The results could be interpreted in relation to the use of these parameters as biomarkers for environmental pollution.
叉帽叶苔，一种耐受污染的物种，能够在城市地区定殖，被采集于意大利南部的阿塞拉镇，以研究空气污染对所谓的意大利死亡三角三个顶点之一的生物影响。在阿塞拉镇采集的标本中通过透射电子显微镜观察到的超微结构损伤与在那不勒斯市中心和远离空气污染源的一个小农村地区（意大利南部的莫里塞的里恰）采集的样本进行了比较。考虑到活力、光合作用效率、热休克蛋白 70（Hsp70）诱导和基因表达水平以及叶绿素降解和相关超微结构改变，研究了对空气污染的生物反应链。特别是，Hsp70 表达和出现的显著增加以及叶绿体超微结构的改变可能与这三个地点的环境污染条件密切相关。这些结果可以根据将这些参数用作环境污染生物标志物来进行解释。
