Amphistegina lessonii and Amphistegina lobifera shell microstructure, texture and twinning pattern reflect resilience to cadmium and lead.

ABSTRACT: Biologically secreted carbonates are archives of environmental conditions, as shell and skeletal element minerals record chemical and physical signals of the ambient environment. We report the impact of Cd²⁺ and Pb²⁺ on foraminiferal shell crystal structural and organizational characteristics, such as microstructure, texture, crystal co-orientation strength and crystal twin formation for the rotaliid foraminifera Amphistegina lessonii and Amphistegina lobifera. The investigated species lived first in Cd²⁺- and Pb²⁺-free and, at a later growth stage, in Cd²⁺- and Pb²⁺-containing water. Enrichment in Cd²⁺ was increased 4 times relative to the ecological criteria maximum concentration (CMC) for both species. For Pb

SUBMITTER: Sancho Vaquer A 

PROVIDER: S-EPMC12033310 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature