Chaetomium globosum KPC3: An Antagonistic Fungus Against the Potato Cyst Nematode, Globodera rostochiensis
The potato cyst nematode ( Globodera rostochiensis ) is one of the most economically important pests of potato ( Solanum tuberosum L.), causing significant economic losses worldwide. The identification of biocontrol agents for the sustainable management of G. rostochiensis is crucial. In this study,...
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Veröffentlicht in: | Current microbiology 2023-04, Vol.80 (4), p.125-125, Article 125 |
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Zusammenfassung: | The potato cyst nematode (
Globodera rostochiensis
) is one of the most economically important pests of potato (
Solanum tuberosum
L.), causing significant economic losses worldwide. The identification of biocontrol agents for the sustainable management of
G. rostochiensis
is crucial. In this study, a potential biocontrol agent,
Chaetomium globosum
KPC3, was identified based on sequence analysis of the DNA internal transcribed spacer (ITS) region, the translation elongation factor 1-alpha (TEF1-α) gene, and the second largest subunit of the RNA polymerase II (RPB2) gene. The pathogenicity test of
C. globosum
KPC3 against cysts and second-stage juveniles (J2s) revealed that fungus mycelium fully parasitized the cyst after 72 h of incubation. The fungus was also capable of parasitizing the eggs inside the cysts. The culture filtrate of
C. globosum
KPC3 caused 98.75% mortality in J2s of
G. rostochiensis
after 72 h of incubation. The pot experiments showed that the combined application of
C. globosum
KPC3 as a tuber treatment at a rate of 1 lit kg
−1
of tubers and a soil application at a rate of 500 ml kg
−1
of farm yard manure (FYM) resulted in significantly lesser reproduction of
G. rostochiensis
compared to the rest of the treatments. Altogether,
C. globosum
KPC3 has the potential to be used as a biocontrol agent against
G. rostochiensis
and can be successfully implemented in integrated pest management programs. |
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ISSN: | 0343-8651 1432-0991 |
DOI: | 10.1007/s00284-023-03228-w |