Vidal, Stefan

[["dc.bibliographiccitation.firstpage","26"],["dc.bibliographiccitation.journal","Biological Control"],["dc.bibliographiccitation.lastpage","36"],["dc.bibliographiccitation.volume","88"],["dc.contributor.author","Lohse, Rieke"],["dc.contributor.author","Jakobs-Schoenwandt, Desiree"],["dc.contributor.author","Vidal, Stefan"],["dc.contributor.author","Patel, Anant V."],["dc.date.accessioned","2018-11-07T09:53:01Z"],["dc.date.available","2018-11-07T09:53:01Z"],["dc.date.issued","2015"],["dc.description.abstract","Since several years it is known that strains of the entomopathogenic fungus Beauveria bassiana (Balsamo-Crivelli) Vuillemin (Ascomycota: Hypocreales) are able to colonize plants as a true endophyte. However, so far no integrated bioprocess engineering approaches have been published where fermentation and formulation strategies are combined to optimize colonization of oilseed rape plant tissues. We therefore aimed at investigating whether and how blastospore (BS) formation can be shifted to resilient submerged conidiospores (SCS) by introducing osmotic stress in different growth phases. When 50 g/L NaCl was added after 48 h to a culture of B. bassiana a yield of 1.4 +/- 0.1 x 10(10) SCS/g sucrose in shake flasks and 1.8 +/- 0.1 x 10(10) SCS/g sucrose in a stirred tank reactor were obtained. In a bioreactor, 24 h after the addition of NaCl, the formation of BS slowed down, the respiratory quotient decreased and a shift from BS to SCS set in. Following these steps, different formulation strategies, namely encapsulation, film coating and liquid formulation were evaluated. B. bassiana grew out of beads as well as on commercial fungicide-coated seeds. Due to the complete suppression of fungal growth on non-sterile soil, the most suitable option was a foliar application. A liquid formulation consisting of 0.1% Triton X-114, 1% molasses, 1% titanium dioxide and 10(6) spores/mL was applied on leaf tips. After 14 days, the endophyte was detected by PCR and microscopic analysis in the leaves. Further research should focus on formation of SCS and protection of plants colonized by B. bassiana against herbivorous insects. (C) 2015 Elsevier Inc. All rights reserved."],["dc.description.sponsorship","German Federal Ministry of Education and Research [FKZ 17N1510]"],["dc.identifier.doi","10.1016/j.biocontrol.2015.05.002"],["dc.identifier.isi","000358633600004"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/36243"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Academic Press Inc Elsevier Science"],["dc.relation.issn","1090-2112"],["dc.relation.issn","1049-9644"],["dc.title","Evaluation of new fermentation and formulation strategies for a high endophytic establishment of Beauveria bassiana in oilseed rape plants"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","62"],["dc.bibliographiccitation.journal","Biological Control"],["dc.bibliographiccitation.lastpage","73"],["dc.bibliographiccitation.volume","116"],["dc.contributor.author","Krell, Vivien"],["dc.contributor.author","Jakobs-Schoenwandt, Desirée"],["dc.contributor.author","Vidal, Stefan"],["dc.contributor.author","Patel, Anant V."],["dc.date.accessioned","2020-12-10T14:22:37Z"],["dc.date.available","2020-12-10T14:22:37Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1016/j.biocontrol.2017.05.004"],["dc.identifier.issn","1049-9644"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/71672"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Encapsulation of Metarhizium brunneum enhances endophytism in tomato plants"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1049"],["dc.bibliographiccitation.issue","9"],["dc.bibliographiccitation.journal","Biocontrol Science and Technology"],["dc.bibliographiccitation.lastpage","1070"],["dc.bibliographiccitation.volume","27"],["dc.contributor.author","Humbert, Pascal"],["dc.contributor.author","Przyklenk, Michael"],["dc.contributor.author","Vemmer, Marina"],["dc.contributor.author","Schumann, Mario"],["dc.contributor.author","Vidal, Stefan"],["dc.contributor.author","Patel, Anant V."],["dc.date.accessioned","2020-12-10T18:14:55Z"],["dc.date.available","2020-12-10T18:14:55Z"],["dc.date.issued","2017"],["dc.identifier.doi","10.1080/09583157.2017.1380164"],["dc.identifier.eissn","1360-0478"],["dc.identifier.issn","0958-3157"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/74668"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Technical scale production of encapsulated Saccharomyces cerevisiae and Metarhizium brunneum attractive to wireworms"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","373"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Fungal Biology"],["dc.bibliographiccitation.lastpage","378"],["dc.bibliographiccitation.volume","122"],["dc.contributor.author","Krell, Vivien"],["dc.contributor.author","Jakobs-Schoenwandt, Desirée"],["dc.contributor.author","Vidal, Stefan"],["dc.contributor.author","Patel, Anant V."],["dc.date.accessioned","2020-12-10T14:24:12Z"],["dc.date.available","2020-12-10T14:24:12Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1016/j.funbio.2018.03.002"],["dc.identifier.issn","1878-6146"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/72178"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Cellulase enhances endophytism of encapsulated Metarhizium brunneum in potato plants"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","2136"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","Pest Management Science"],["dc.bibliographiccitation.lastpage","2145"],["dc.bibliographiccitation.volume","72"],["dc.contributor.author","Vemmer, Marina"],["dc.contributor.author","Schumann, Mario"],["dc.contributor.author","Beitzen-Heineke, Wilhelm"],["dc.contributor.author","French, Bryan W."],["dc.contributor.author","Vidal, Stefan"],["dc.contributor.author","Patel, Anant V."],["dc.date.accessioned","2018-11-07T10:06:44Z"],["dc.date.available","2018-11-07T10:06:44Z"],["dc.date.issued","2016"],["dc.description.abstract","BACKGROUNDCO(2) is known as an attractant for many soil-dwelling pests. To implement an attract-and-kill strategy for soil pest control, CO2-emitting formulations need to be developed. The aim of the present work was to develop a slow-release bead system in order to bridge the gap between application and hatching of western corn rootworm larvae. RESULTSWe compared different Ca-alginate beads containing Saccharomyces cerevisiae for their potential to release CO2 over a period of several weeks. The addition of starch improved CO2 release, resulting in significantly higher CO2 concentrations in soil for at least 4 weeks. The missing amylase activity was compensated for either by microorganisms present in the soil or by coencapsulation of Beauveria bassiana. Formulations containing S. cerevisiae, starch and B. bassiana were attractive for western corn rootworm larvae within the first 4 h following exposure; however, when considering the whole testing period, the maize root systems remained more attractive for the larvae. CONCLUSIONCoencapsulation of S. cerevisiae, starch and B. bassiana is a promising approach for the development of attractive formulations for soil applications. For biological control strategies, the attractiveness needs to be increased by phagostimuli to extend contact between larvae and the entomopathogenic fungus growing out of these formulations. (c) 2016 Society of Chemical Industry"],["dc.identifier.doi","10.1002/ps.4245"],["dc.identifier.isi","000385665300015"],["dc.identifier.pmid","26834068"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/39150"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","1526-4998"],["dc.relation.issn","1526-498X"],["dc.title","Development of a CO2-releasing coformulation based on starch, Saccharomyces cerevisiae and Beauveria bassiana attractive towards western corn rootworm larvae"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]