Efficacy of the biocontrol agent Trichoderma hamatum against Lasiodiplodia theobromae on macadamia

dc.contributor.authorLi, Xiaojiaoen
dc.contributor.authorLeng, Jinsongen
dc.contributor.authorYu, Longfengen
dc.contributor.authorBai, Haidongen
dc.contributor.authorLi, Xiaojunen
dc.contributor.authorWisniewski, Michaelen
dc.contributor.authorLiu, Jiaen
dc.contributor.authorSui, Yuanen
dc.date.accessioned2023-05-10T13:35:03Zen
dc.date.available2023-05-10T13:35:03Zen
dc.date.issued2022-08en
dc.description.abstractMacadamia (Macadamia integrifolia) trees are an important source of revenue in rainforest ecosystems. Their nuts are rich in vitamins, minerals, fiber, antioxidants, and monounsaturated oils. The fungus Lasiodiplodia theobromae, however, is a major disease problem, causing kernel rot and other disease symptoms. In the present study, a dual confrontation assay was used to evaluate the inhibitory effect of an endophytic strain of Trichoderma hamatum C9 from macadamia root against L. theobromae. Volatiles and cell-free culture filtrate of T. hamatum were also used to assess their antifungal activity against L. theobromae. Results suggested that T. hamatum exhibited a significant inhibitory effect against L. theobromae in vitro. Further results of a biocontrol assay indicated that a spray treatment of T. hamatum conidial suspension significantly decreased the size of lesions caused by artificially inoculated L. theobromae on macadamia leaves, as well as the disease index in young trees inoculated with L. theobromae, relative to sterile water controls. Collectively, our findings indicate that T. hamatum C9 represents a potential biocontrol agent that can be used to manage L. theobromae on macadamia.en
dc.description.notesFunding This study was supported by the Yunnan Fundamental Research Projects (grant no. 2019FD123) and Chongqing Talents - Innovation Leader Project to YS.en
dc.description.sponsorshipYunnan Fundamental Research Projects; Chongqing Talents - Innovation Leader Project; [2019FD123]en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.3389/fmicb.2022.994422en
dc.identifier.eissn1664-302Xen
dc.identifier.other994422en
dc.identifier.pmid36118222en
dc.identifier.urihttp://hdl.handle.net/10919/115006en
dc.identifier.volume13en
dc.language.isoenen
dc.publisherFrontiersen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectbiological controlen
dc.subjectLasiodiplodia theobromaeen
dc.subjectmacadamiaen
dc.subjectTrichoderma hamatumen
dc.subjectfungal diseaseen
dc.titleEfficacy of the biocontrol agent Trichoderma hamatum against Lasiodiplodia theobromae on macadamiaen
dc.title.serialFrontiers in Microbiologyen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
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