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Titel
Potential of Fusarium wilt-inducing chlamydospores, in vitro behaviour in root exudates and physiology of tomato in biochar and compost amended soil
VerfasserAkhter, Adnan ; Hage-Ahmed, Karin ; Soja, Gerhard ; Steinkellner, Siegrid
Erschienen in
Plant and Soil, Berlin, 2016, Jg. 406, H. 1, S. 425-440
ErschienenSpringer, 2016
SpracheEnglisch
DokumenttypAufsatz in einer Zeitschrift
Schlagwörter (EN)Soil amendments / Solanum lycopersicum / Fusarium oxysporum / Germination assay / Fungal growth
ISSN1573-5036
URNurn:nbn:at:at-ubbw:3-1641 Persistent Identifier (URN)
DOI10.1007/s11104-016-2948-4 
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Potential of Fusarium wilt-inducing chlamydospores, in vitro behaviour in root exudates and physiology of tomato in biochar and compost amended soil [1.06 mb]
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Zusammenfassung (Deutsch)

Abstract in deutscher Sprache nicht verfügbar

Zusammenfassung (Englisch)

Background and aims

Biochars are recognised for their ability to improve soil functions and to stimulate plant defense mechanisms. We evaluated the response of Fusarium oxysporum f. sp. lycopersici chlamydospores to tomato plants grown in biochar and compost amended soil to get a deeper insight into the tomato-Fusarium pathosystem.

Methods

Wood chips and green waste biochar in combination with compost (‘WCBcomp and GWBcomp respectively) were studied for their ability to suppress the Fusarium chlamydospores infectivity. Plant growth parameters and in vitro effects on chlamydospores were determined.

Results

The ‘GWBcomp soil amendment stimulated plants growth and gaseous exchange rates and had a suppressive effect on the chlamydospore infectivity in comparison with the ‘WCBcomp treatment and the treatment containing compost only. The germination rate of chlamydospores was unaffected by the source of root exudates, whereas the mycelial growth was significantly higher in root exudates from chlamydospore inoculated plants grown in ‘WCBcomp amended soil unlike to ‘GWBcomp amended soil.

Conclusion

Overall, our findings indicate that both biochars had a variable effect on chlamydospores. We conclude that soil amendment with garden waste biochar and compost exhibit a great potential in suppressing Fusarium chlamydospore infectivity and alleviating pathogeninduced physiological stress in tomato plants.

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CC-BY-Lizenz (4.0)Creative Commons Namensnennung 4.0 International Lizenz