Urea regulates soil nematode population by enhancing the nematode-trapping ability of nematode-trapping fungi

As the most abundant animal in the soil, nematodes are directly or indirectly involved in almost all soil ecological processes. Studying soil nematode population regulation is essential to understanding soil ecological processes. This study found urea combines nematode-trapping fungi to regulate the...

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Bibliographic Details
Published in:Scientific reports 2024-06, Vol.14 (1), p.14296-8, Article 14296
Main Authors: Fa, Zhang, Shuaiyi, Huang, Boonmee, Saranyaphat, Wen, Xiao, Xiaoyan, Yang
Format: Article
Language:English
Subjects:
631/158
631/326
Animals
Ascomycota - physiology
Fungi
Humanities and Social Sciences
multidisciplinary
Nematoda - physiology
Nematodes
Pest Control, Biological - methods
Population regulation
Population studies
Predation
Science
Science (multidisciplinary)
Soil - chemistry
Soil - parasitology
Soil Microbiology
Soils
Trapping
Urea
Urea - metabolism
Urea - pharmacology
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Summary:As the most abundant animal in the soil, nematodes are directly or indirectly involved in almost all soil ecological processes. Studying soil nematode population regulation is essential to understanding soil ecological processes. This study found urea combines nematode-trapping fungi to regulate the population of soil nematodes. In soil, compared with no urea, adding 0.2 mg/mL urea after applying Arthrobotrys oligospora and Dactylellina ellipsospora reduced the number of nematodes by 34.7% and 31.7%. Further, the mechanism of urea couple nematode-trapping fungi to regulate the nematode population was explored in the medium environment. The results showed that the addition of 0.2 mg/ml urea accelerated the trap formation of A. oligospora and D. ellipsosporas by 50% and 46.5%, and increased the yield of traps of A. oligospora and D. ellipsosporas by 39.5% and 40.6%, thus, the predatory efficiency of A. oligospora and D. ellipsospora on nematodes was increased by 34.2% and 32.7%. In conclusion, urea regulates the predation ability of A. oligospora and D. ellipsosporas to regulate the soil nematode population. This study deepens the understanding of the regulatory pathways of the soil nematodes but also provides a potential new strategy for harmful nematode bio-control.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-024-65167-1