New test for kiwi plant material

Publicationdate: 10 december 2025

We are introducing a new test for the detection of Pseudomonas syringae pv. actinidae in kiwifruit plants. The test consists of a number of techniques performed in parallel, enabling the presence of this bacterium to be determined with a high degree of reliability. The rapid, reliable and sensitive PCR method is used to investigate whether DNA from this specific bacterium is present. In parallel with this, the culture method is started in order to isolate any bacteria that may be present.

The (real-time) PCR is a technique for rapid amplification of DNA

This is done with the help of pathogen-specific building blocks. The amplification in DNA can be monitored digitally at any time. This makes it possible faster and with more certainty confirm with more certainty whether the pathogen is present.

Pseudomonas syringae pv. actinidae

This is a bacterium that causes leaf spot disease in kiwifruit plants. This disease can cause severe damage to both leaves and shoots, and in some cases may lead to the complete death of the plants. Since the first outbreaks in New Zealand and Italy, it has become a major problem for kiwifruit cultivation worldwide.

Pseudomonas syringae pv. actinidae on plant material of kiwi

Sample size: 2–25 shoot pieces with at least one bud (axillary bud) or 10 tissue-cultured plantlets

Rate test: € 231,10

Duration test: 12 days

For basic fees see price list.

Naktuinbouw Laboratories supports sector

To support the sector, Naktuinbouw Laboratories continues to develop new tests that can support diagnoses on plants and seeds with symptoms or just checking for and guaranteeing absence from certain plant pathogens.

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