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Related Experiment Video

Updated: May 3, 2026

Evaluation of Photosynthetic Behaviors by Simultaneous Measurements of Leaf Reflectance and Chlorophyll Fluorescence Analyses
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Chlorophyll-deficient Lespedeza procumbens.

A F Clewell1, G H Schmid

  • 1Department of Biological Science, Florida State University, Tallahassee.

Planta
|February 12, 2014
PubMed
Summary

A rare yellow Lespedeza procumbens plant, deficient in chlorophyll, was found. This discovery offers detailed insights into chlorophyll deficiency in wild plants, contrasting with previous studies on cultivars.

Area of Science:

  • Plant Biology
  • Genetics
  • Photosynthesis Research

Background:

  • A unique yellow, chlorophyll-deficient Lespedeza procumbens plant was identified in Florida.
  • Previous research on chlorophyll deficiency primarily focused on cultivated plants, such as yellow tobacco.

Purpose of the Study:

  • To provide a detailed report on chlorophyll deficiency in a wild plant species.
  • To investigate the characteristics of chlorophyll-deficient Lespedeza procumbens and compare it to other known cases.

Main Methods:

  • Field discovery and observation of a naturally occurring mutant plant.
  • Self-pollination experiments to determine inheritance patterns.
  • Biochemical analysis of chlorophyll content.
  • Physiological measurements of photosynthetic rates.

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  • Ultrastructural examination of chloroplasts using electron microscopy.

    • Main Results:

    • The yellow Lespedeza procumbens exhibited significantly lower chlorophyll content (5.5 times less) than green counterparts.
    • Despite chlorophyll deficiency, yellow plants showed higher photosynthetic rates per unit of chlorophyll (3-8 times greater) under high light.
    • Chloroplasts in yellow plants lacked stacked grana and featured unique 'cross channels,' a structure previously observed only in Cassia and Rhodopseudomonas.
    • Self-pollination of the yellow plant produced only yellow offspring, indicating a genetic basis for the trait.

    Conclusions:

    • Chlorophyll deficiency in this wild Lespedeza procumbens is a heritable trait with distinct physiological and ultrastructural consequences.
    • The findings highlight unique adaptations in chlorophyll-deficient plants and provide a detailed case study for wild plant research.
    • The observed chloroplast structures and photosynthetic efficiency offer new avenues for understanding plant adaptation and genetic mutations.