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Membrane retention potential of Tachypleus gigas during early embryogenesis

Nelson, Bryan Raveen and John, Akbar and Hwei Zhong, Julia and Khan Chowdhury, Ahmed Jalal (2020) Membrane retention potential of Tachypleus gigas during early embryogenesis. Desalination and Water Treatment, 187. pp. 17-23. ISSN 1944-3994 E-ISSN 1944-3986

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Abstract

Investigation on metal ion (Cd2+ and Pb2+) retention within the embryonic shell of Tachypleus gigas embryos was investigated. Inductively coupled plasma optical emission spectrometry was used for metal observations whereas developmental abnormalities were observed using a scanning electron microscope and histology via Harrison-Eosin staining. Metal ions penetrate and regulate between the extra- and embryonic shell environments to cause delayed embryogenesis only in early embryonic stages (Stages-E and DE). Ionic regulation was studied and findings showed that the embryonic shell (ES) was capable of selecting required ions whereas the extra-embryonic shell (EES) having higher retention potential. Throughout the 34 d of exposure, Se2+ was accumulated in the yolk mass (YM). Ionic regulation of embryos was influenced by stocking density and concentration of metabolites. Bioaccumulation factor revealed accumulation potential as EES > ES > YM and thus EES is suitable for biological membrane development. The mechanism of ionic regulation in the ES membrane can be used as a model to design a biological membrane capable of removing metals from polluted waters.

Item Type: Article (Journal)
Additional Information: 7130/80800
Uncontrolled Keywords: Ion regulation; Embryonic shell; Metal ion; Organic membrane; Embryogenesis
Subjects: Q Science > Q Science (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Science > Institute of Oceanography and Maritime Studies
Kulliyyah of Science
Kulliyyah of Science > Department of Marine Science
Depositing User: Dr. Akbar John
Date Deposited: 23 Jun 2020 12:36
Last Modified: 23 Jun 2020 12:36
URI: http://irep.iium.edu.my/id/eprint/80800

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