Beyond stomata

Other leaf-surface traits we phenotype.

The same imaging pipeline that powers stomatal phenotyping extends to two other agronomically relevant traits — both measurable on intact leaves, non-destructively, with the same kit.

Trichomes

Leaf hair density and structure — a first line of defence.

Trichomes are epidermal hair-like structures that play a critical role in water-loss regulation, UV protection, and defence against herbivores and pathogens. Measurable from the same leaf imagery as stomata — without any additional sample preparation.

Trichome imaging example 1 Example 01
Trichome imaging example 2 Example 02

What we measure

  • Trichome density (number per mm²)
  • Trichome length and morphology
  • Adaxial vs abaxial distribution
  • Spatial clustering patterns
  • Co-measurement with stomata on the same image

🔬 Research applications

  • Studying trichome-mediated drought tolerance mechanisms
  • Functional morphology across wild and cultivated accessions
  • Correlation with boundary layer resistance and WUE
  • Defence response phenotyping (herbivory, pathogens)

🌾 Breeding applications

  • Selection for heat and UV stress tolerance
  • Proxy trait for water-use efficiency under drought
  • Pest resistance screening at scale
  • Trait integration into multi-trait selection indices
Leaf Venation Pattern

Vein density and architecture — the hydraulic backbone of the leaf.

Leaf vein density (LVD) and vein architecture govern how water is distributed across the leaf — directly influencing hydraulic efficiency, drought resilience, and ultimately photosynthetic capacity. MIAtecs can extract venation traits from the same field-deployable imaging setup.

Example 01
Example 02

What we measure

  • Vein length density (mm/mm²)
  • Vein network topology (branching order)
  • Areole size and distribution
  • Correlation with stomatal density
  • Vein-stomata coordination ratio

🔬 Research applications

  • Hydraulic architecture studies in drought physiology
  • Evolutionary ecology of leaf hydraulic design
  • Stomata–vein coordination (supply–demand matching)
  • Comparative genomics of vein patterning genes

🌾 Breeding applications

  • Selection for hydraulic efficiency under water deficit
  • Combined stomata + venation index for WUE
  • Early-stage screening for drought-tolerant genotypes
  • Rootstock and variety characterisation in perennials

Interested in trichome or venation phenotyping?

These traits are available as add-ons to any stomatal phenotyping project. Tell us your species and goal.

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