Instituto Politécnico Nacioanal - CIIDIR Unidad Sinaloa, Juan de Dios Bátiz Paredes s/n, Col. San Joachín, C.P. 81000 Guasave, Sinaloa, Mexico.
Instituto Politécnico Nacioanal - CIIDIR Unidad Sinaloa, Juan de Dios Bátiz Paredes s/n, Col. San Joachín, C.P. 81000 Guasave, Sinaloa, Mexico.
Mar Pollut Bull. 2024 Dec;209(Pt A):117131. doi: 10.1016/j.marpolbul.2024.117131. Epub 2024 Oct 24.
Rhizophora mangle's potential as a bioindicator of pollution trace metals (TM). TM in sediments, and leaves, stembark, and roots were evaluated. Absorbance was measured by an Atomic Absorption Spectrophotometer (AAS). TM content was obtained by acid nitric digestion. TM seasonal change, bioavailable fractions (BioF), enrichment factor (EF), and correlation to tissues were evaluated. TMs in sediments were Fe > Mn > Zn > Cr > Ni > Cu > Cd. In tissues was Mn > Fe > Zn > Cu > Cr > Ni > Cd. TM was correlated with silt, clay, and organic materials. In the sediment, the BioF of Cu showed a strong significant correlation in summer with Cu in leaves in leaf and stembark. A significant correlation was shown between the BioF of Mn in the sediment and Mn in leaves during the spring, summer, and winter. The BioF in sediments is correlated with organic matter, sandy and silty, temperature, salinity, and pH. R. mangle could be a potential pollutant bioindicator of Cu and Mn.
无瓣海桑作为污染痕量金属（TM）生物标志物的潜力。评估了沉积物、叶片、茎皮和根中的 TM。通过原子吸收分光光度计（AAS）测量吸光度。通过酸硝酸消解获得 TM 含量。评估了 TM 的季节性变化、生物可利用分数（BioF）、富集因子（EF）以及与组织的相关性。沉积物中的 TM 为 Fe>Mn>Zn>Cr>Ni>Cu>Cd。在组织中为 Mn>Fe>Zn>Cu>Cr>Ni>Cd。TM 与淤泥、粘土和有机物质有关。在沉积物中，夏季 Cu 的 BioF 与叶片和茎皮中 Cu 的含量呈强显著相关。春季、夏季和冬季，沉积物中 Mn 的 BioF 与叶片中 Mn 的含量呈显著相关。沉积物中的 BioF 与有机质、砂质和粉砂质、温度、盐度和 pH 值有关。无瓣海桑可能是 Cu 和 Mn 的潜在污染物生物标志物。
