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Related Experiment Video

Updated: May 13, 2026

Assessing Structural Traits in Triticum aestivum and Zea mays for C3 and C4 Photosynthetic Differentiation Using Free-hand and Semi-thin Sections
06:04

Assessing Structural Traits in Triticum aestivum and Zea mays for C3 and C4 Photosynthetic Differentiation Using Free-hand and Semi-thin Sections

Published on: July 12, 2024

Toward cool C(4) crops.

Stephen P Long1, Ashley K Spence

  • 1Institute for Genomic Biology, Department of Crop Sciences, University of Illinois, Urbana, IL 61801, USA. slong@illinois.edu

Annual Review of Plant Biology
|March 12, 2013
PubMed
Summary
This summary is machine-generated.

C(4) photosynthesis offers superior resource use efficiency but is typically warm-climate limited. Some C(4) plants acclimate to cold, offering potential for crop improvement.

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Published on: April 17, 2015

Related Experiment Videos

Last Updated: May 13, 2026

Assessing Structural Traits in Triticum aestivum and Zea mays for C3 and C4 Photosynthetic Differentiation Using Free-hand and Semi-thin Sections
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Published on: July 12, 2024

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Semi-High Throughput Screening for Potential Drought-tolerance in Lettuce (Lactuca sativa) Germplasm Collections

Published on: April 17, 2015

Area of Science:

  • Plant physiology
  • Photosynthesis research
  • Crop science

Background:

  • C(4) photosynthesis enhances light, water, and nitrogen use efficiency compared to C(3) photosynthesis.
  • This photosynthetic pathway is dominant in highly productive terrestrial plants and crops, but primarily found in tropical and subtropical regions.
  • The C(4) photosynthetic apparatus has been considered inherently limited to warm environments.

Purpose of the Study:

  • To explore the mechanisms that allow a subset of C(4) species to acclimate to chilling conditions.
  • To investigate the potential for transferring these cold-acclimation mechanisms into major C(4) crops like maize.

Main Methods:

  • Review of existing literature on C(4) photosynthesis and plant acclimation.
  • Comparative analysis of C(4) species with differing temperature optima.
  • Exploration of genetic and physiological factors contributing to cold tolerance in C(4) plants.

Main Results:

  • A small group of C(4) species exhibit the ability to acclimate their photosynthetic apparatus to chilling temperatures.
  • These species contrast with major C(4) crops such as maize, which are typically sensitive to cold.
  • Understanding these acclimation mechanisms is key to expanding C(4) crop cultivation.

Conclusions:

  • The inherent limitation of C(4) photosynthesis to warm climates may be overcome through specific adaptive mechanisms.
  • Introducing cold-acclimation traits from resilient C(4) species into crops like maize could broaden their geographic cultivation range.
  • Further research into these mechanisms holds significant potential for improving global crop productivity and resilience.