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Bridging the gap: linking morpho-functional traits' plasticity with hyperaccumulation.

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  • 1Department of Environment Studies, Panjab University, Chandigarh, 160 014, India.

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Summary
This summary is machine-generated.

Solanum nigrum exhibits significant plasticity in plant functional traits (PFTs), enabling effective growth in lead-contaminated soils. This adaptability is key for identifying plants with strong phytoremediation capabilities.

Keywords:
Morphological attributesNon-biodegradable pollutantPb contaminationPlant functional traitsTolerant species

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Area of Science:

  • Environmental Science
  • Plant Biology
  • Bioremediation

Background:

  • Heavy metal tolerance in plants is crucial for phytoremediation.
  • Plant functional traits (PFTs) are often overlooked when identifying hyperaccumulators.
  • Understanding trait variations aids in identifying plants for contaminated site remediation.

Purpose of the Study:

  • To investigate morpho-functional trait variations in Solanum nigrum under lead (Pb) stress.
  • To assess the plasticity of various PFTs in response to different Pb concentrations.
  • To determine the role of PFT plasticity in the phytoremediation capacity of S. nigrum.

Main Methods:

  • Assessed 21 PFTs (above-ground, below-ground, reproductive, photosynthetic) in S. nigrum.
  • Exposed plants to varying Pb concentrations (500-2000 mg kg⁻¹).
  • Utilized multivariate analysis (MANOVA) to analyze trait variations.

Main Results:

  • Significant variations were observed in above-ground, below-ground, and photosynthetic traits under Pb stress.
  • Reproductive traits did not show significant variation with increasing metal concentration.
  • Most traits, except flower count, fruit dry mass, and chlorophyll b, varied significantly.

Conclusions:

  • Enhanced PFT plasticity allows S. nigrum to thrive in Pb-contaminated soils.
  • Trait plasticity is a valuable indicator for assessing phytoremediation potential.
  • S. nigrum demonstrates effective growth and fitness in lead-polluted environments due to trait adaptability.