Published April 28, 2026 | Version v1
Software Open

Automated Conidial Germination Counter – Fiji macros, ilastik classifier and demo images

  • 1. Instituto Nacional de Investigaciones Agropecuarias (INIAP), Ecuador

Description

This deposit contains an open-source workflow for automated counting of germinated and non-germinated conidia of entomopathogenic fungi (e.g., Beauveria bassiana) from microscopy images. It is the supplementary material of the article "Automated Conidial Germination Counter: An Open‑Source Workflow for Entomopathogenic Fungi Quality Control" (Frontiers in Fungal Biology).

Contents:

  • Three Fiji/ImageJ macros: batch preprocessing, manual counting assistant, and fully automated conidial germination counter.

  • A pre‑trained ilastik pixel classifier (project file + 5 training images).

  • 10 raw demo images for testing.

Requirements:

  • Fiji (Fiji Is Just ImageJ)

  • ilastik 1.4.0 or newer

Quick start:

  1. Open the ilastik project (classifier.ilp) and export probability maps for your images (TIFF, multi‑channel).

  2. Run the Batch_Conidial_Germination_Automated_Counter.ijm macro in Fiji on the exported maps.

  3. Obtain germination percentages and visual audit images (overlaid contours).

The workflow achieves 97% concordance with manual counting, processes each image in ~10 seconds, and performs a full census (3,000–9,000 conidia per sample). All material is released under BSD 2‑Clause license. See the README.txt inside the ZIP for detailed step‑by‑step instructions.

Files

Conidial Germination Counter.zip

Files (147.6 MB)

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