A Bacillus thuringiensis Cry protein controls soybean cyst nematode in transgenic soybean plants

Theodore W. Kahn (), Nicholas B. Duck, Michael T. McCarville, Laura Cooper Schouten, Kathryn Schweri, Jelena Zaitseva and Julia Daum
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Theodore W. Kahn: BASF
Nicholas B. Duck: BASF
Michael T. McCarville: BASF
Laura Cooper Schouten: BASF
Kathryn Schweri: BASF
Jelena Zaitseva: BASF
Julia Daum: BASF

Nature Communications, 2021, vol. 12, issue 1, 1-12

Abstract: Abstract Plant-parasitic nematodes (PPNs) are economically important pests of agricultural crops, and soybean cyst nematode (SCN) in particular is responsible for a large amount of damage to soybean. The need for new solutions for controlling SCN is becoming increasingly urgent, due to the slow decline in effectiveness of the widely used native soybean resistance derived from genetic line PI 88788. Thus, developing transgenic traits for controlling SCN is of great interest. Here, we report a Bacillus thuringiensis delta-endotoxin, Cry14Ab, that controls SCN in transgenic soybean. Experiments in C. elegans suggest the mechanism by which the protein controls nematodes involves damaging the intestine, similar to the mechanism of Cry proteins used to control insects. Plants expressing Cry14Ab show a significant reduction in cyst numbers compared to control plants 30 days after infestation. Field trials also show a reduction in SCN egg counts compared with control plants, demonstrating that this protein has excellent potential to control PPNs in soybean.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-23743-3

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DOI: 10.1038/s41467-021-23743-3

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