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Pathogen

Acidovorax citrulli

Overview

Scientific name

Acidovorax citrulli

Genus

Acidovorax

EPPO code

PSDMAC

Common name

Bacterial fruit blotch

Synonyms

Pseudomonas avenae subsp. citrulli

Description

Acidovorax citrulli is a Gram-negative bacterium causing bacterial fruit blotch mainly on watermelon and melons. It can cause seedling infection through seed transmission in many cucurbitea crops.  

Images of Acidovorax citrulli

Acidovorax citrulli on Citrullus lanatus
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Acidovorax citrulli on Citrullus lanatus

Image credits: Xiulan Xu, CN

Acidovorax citrulli colonies on PF media.


growth time: 3 | temperature: 28 C | lighting: Darkness | plate size: 90 mm | agar: PF ( Sigma)

Acidovorax citrulli on Citrullus lanatus
click for more information

Acidovorax citrulli on Citrullus lanatus

Image credits: Xiulan Xu, CN

Acidovorax citrulli colonies on PF media.


growth time: 3 | temperature: 28 C | lighting: Darkness | plate size: 90 mm | agar: PF ( Sigma)

Acidovorax citrulli on Cucumis melo
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Acidovorax citrulli on Cucumis melo

Image credits: Xiulan Xu, CN

Seedling infection of Acidovorax citrulli from infected melon seed


growth time: 12 days | temperature: 25 | lighting: 8 h light/16h dark

Acidovorax citrulli on Cucumis melo
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Acidovorax citrulli on Cucumis melo

Image credits: Xiulan Xu, CN

Seedling infection of Acidovorax citrulli from infected melon seed


growth time: 12 days | temperature: 25 | lighting: 8 h light/16h dark

Acidovorax citrulli on Citrullus lanatus
click for more information

Acidovorax citrulli on Citrullus lanatus

Image credits: Xiulan Xu, CN

Acidovorax citrulli on semi-selective medium mEBB. Colonies are small dark color.


sterilisation: no no | growth time: 5 days | temperature: 28 | lighting: Darkness | plate size: 90mm | agar: mEBB ( )

Acidovorax citrulli on Citrullus lanatus
click for more information

Acidovorax citrulli on Citrullus lanatus

Image credits: Xiulan Xu, CN

Acidovorax citrulli on semi-selective medium mEBB. Colonies are small dark color.


sterilisation: no no | growth time: 5 days | temperature: 28 | lighting: Darkness | plate size: 90mm | agar: mEBB ( )

Acidovorax citrulli on Cucurbita spp.
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Acidovorax citrulli on Cucurbita spp.

Image credits: Marion Jousselin, FR

Symptoms of Acidovorax citrulli on zucchini (Cucurbita pepo) seedlings.


growth time: 14 days | temperature: 24°C day and 26°C night - minimum humidity: 70% . - | lighting: 16 hours day / 8 hours night | agar: sowing on parboiled soil covered with vermiculite, addition of 1L of water with fungicide ( ) |
DNA testing: Pathogen identity further confirmed by molecular biology.

Acidovorax citrulli on Cucurbita spp.
click for more information

Acidovorax citrulli on Cucurbita spp.

Image credits: Marion Jousselin, FR

Symptoms of Acidovorax citrulli on zucchini (Cucurbita pepo) seedlings.


growth time: 14 days | temperature: 24°C day and 26°C night - minimum humidity: 70% . - | lighting: 16 hours day / 8 hours night | agar: sowing on parboiled soil covered with vermiculite, addition of 1L of water with fungicide ( ) |
DNA testing: Pathogen identity further confirmed by molecular biology.