Salim et al. 2024 — Cadmium-induced morpho-physiological changes in Brassica juncea seedlings

This germination-tray study characterized the morpho-physiological and biochemical response of mustard (Brassica juncea) seedlings to cadmium exposure. It is upstream mechanism evidence on cadmium uptake and tolerance in a Brassica crop; it reports no retail food occurrence and is context-only for Heavy Metal Index purposes.

Key numbers

• Cadmium applied at 0, 0.1, 0.5, and 1.0 mM; parameters measured in seven-day-old seedlings.
• Cadmium accumulated more in roots than in shoots and significantly impaired growth.
• Cadmium reduced chlorophyll biosynthesis and carotenoid content (depressing photosynthesis) and affected protein content; antioxidant catalase activity rose with increasing Cd.
• Effects were strongest at 1.0 mM Cd. The paper notes (introduction) that B. juncea can accumulate up to 400 µg/g DW Cd in shoots, citing its use as a phytoremediation model.

Methods (brief)

Germinating-tray experiment using CdCl₂ as the Cd source, tap water as control, with morphological (root/shoot length, biomass, vigour index) and biochemical (chlorophyll, carotenoid, protein, catalase) endpoints.

Implications

Certification: Contributes nothing to HMT&C threshold pools. Mechanism evidence on cadmium uptake/tolerance physiology in a Brassica crop; route as exposure/mechanism context to Soil-to-plant transfer of heavy metals, Cadmium, and Agronomic mitigation.

Courses: Illustrates root-vs-shoot cadmium partitioning and the oxidative-stress response relevant to cultivar-tolerance discussions.

App: No contamination_profile blocks are touched.

Microbiome: Not a focus of this source.

Wiki pages this source may touch

• Cadmium
• Soil-to-plant transfer of heavy metals
• Agronomic mitigation

Verification notes

• Evidence tier B: primary experimental study (germination-tray) in a peer-reviewed journal. Seedling-stage morpho-physiology rather than retail food occurrence; tier reflects design, not stakes.
• Page grounded in the published abstract plus the PDF first pages (read on ingest); values preserved as printed.
• ingredients: [] / products: [] correct: experimental uptake/tolerance context, not retail food occurrence; mustard is the test species, carried in matrices.
• Part 2 direction-of-edit check: adds upstream mechanism literature; neutral to HMT&C thresholds, moves toward the literature.

Page history

The five most recent substantive edits to this page. The full version history lives in git; when DOI minting comes online (see schema docs), each entry below will also link to a version-pinned DataCite DOI.