Microbiological assessments in a cut flower crop polytunnel field trial adopting soil covering and microbiocides for Fusarium wilt suppression

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dc.contributor.authorRao, Juluri R.
dc.contributor.authorNelson, David W.V.A.
dc.contributor.authorFleming, Colin Craig
dc.contributor.authorMartin, Trevor J.G.
dc.date.accessioned2020-11-13T10:06:20Z
dc.date.available2020-11-13T10:06:20Z
dc.date.issued2020-09-04
dc.descriptionPublication history: Published online - 4 September 2020en_US
dc.description.abstractCut flower Matthiola incana were raised by local commercial cultivators in a polytunnel. The field soil beds were either left uncovered as normal or covered with polythene sheets (except a hole for plant plug space). Average temperatures in the top 5 cm soil under cover dropped from 28 oC to 18 oC compared to its spiking up to 37 oC in uncovered counterparts. Microbiological analyses indicated that soil covering induced two log10 folds reduction of the wilt causal fungi Fusarium oxysporum and concomitantly increased one log10 fold wilt antagonistic natural soil inhabiting fungi populations. Standard dip/drench mixtures of commercial and local isolates microbiocides (bacteria) applied to M. incana plug roots improved plant health assessed by visible scores of the level of damage or wilt symptoms under soil covered treatments. Scanning electron microscopy, cultural and 16S rRNA PCR analyses revealed potent antifungal bacteria attached to the hyphal surfaces of F. oxysporum as ectosymbionts that may have implications for virulence regulation and host plants’ wilt disease control. Our microbiological data support the prospects of combining physiological and microbiological interventions upon covering the soil surface that offers the local horticulturists an evidence based sustainable means of Fusarium wilt control suppression in polytunnel crops.en_US
dc.description.sponsorshipDepartment of Agriculture, Environment and Rural Affairs (DAERA) directed Evidence and Innovation project 16/3/11, and the support of a EU FP7–BIOFECTOR grant (JRR, CF, TM) for this studyen_US
dc.identifierhttp://hdl.handle.net/20.500.12518/192
dc.identifier.citationRao, J., Nelson, D., Fleming, C. and Martin, T. (2020) ‘Microbiological Assessments in a Cut Flower Crop Polytunnel Field Trial Adopting Soil Covering and Microbiocides for Fusarium Wilt Suppression’, European Journal of Biology and Biotechnology. European Open Access Publishing (Europa Publishing), 1(5). doi: 10.24018/ejbio.2020.1.5.70.en_US
dc.identifier.issn2684-5199
dc.identifier.urihttps://doi.org/10.24018/ejbio.2020.1.5.70
dc.language.isoenen_US
dc.publisherEuropa Publishingen_US
dc.rightsCreative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.en_US
dc.subjectMicrobiocidesen_US
dc.subjectMathiola incanaen_US
dc.subjectlight/temperature modulationen_US
dc.subjectdisease controlen_US
dc.titleMicrobiological assessments in a cut flower crop polytunnel field trial adopting soil covering and microbiocides for Fusarium wilt suppressionen_US
dc.typeArticleen_US

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