Endophytic colonisation of squash by the fungal entomopathogen<i>Beauveria bassiana</i>(Ascomycota: Hypocreales) for managing<i>Zucchini yellow mosaic virus</i>in cucurbits

Jaber, Lara R.; Salem, Nidà

doi:10.1080/09583157.2014.923379

Cited by 86 publications

(56 citation statements)

References 63 publications

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“…Secondly, indirect action could occur by activating the systemic resistance in the plant, an action mechanism used by the endophyte B. bassiana against zucchini yellow mosaic virus in pumpkin and against Xanthomonas axonopodis pv. malvacearum in cotton, as reported by Jaber and Salem [71] and Ownley et al [21], respectively. According to Vega et al [68] and Ownley et al [16], the antifungal action exhibited by endophytes could be due to a mixture of the previously mentioned mechanisms rather than to the action of a single mechanism.…”

Section: Antifungal Activity In the Host Plant Against Botrytis Cinereasupporting

confidence: 56%

Antifungal Activity of Beauveria bassiana Endophyte against Botrytis cinerea in Two Solanaceae Crops

et al. 2019

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Botrytis cinerea causes substantial losses in tomato and chili pepper crops worldwide. Endophytes have shown the potential for the biological control of diseases. The colonization ability of native endophyte strains of Beauveria bassiana and their antifungal effect against B. cinerea were evaluated in Solanaceae crops. Root drenching with B. bassiana was applied, and endophytic colonization capacity in roots, stems, and leaves was determined. The antagonistic activity was evaluated using in vitro dual culture and also plants by drenching the endophyte on the root and by pathogen inoculation in the leaves. Ten native strains were endophytes of tomato, and eight were endophytes of chili pepper. All strains showed significant in vitro antagonism against B. cinerea (30–36%). A high antifungal effect was observed, and strains RGM547 and RGM644 showed the lowest percentage of the surface affected by the pathogen. Native strains of B. bassiana colonized tomato and chili pepper tissues and provided important levels of antagonism against B. cinerea.

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Section: Antifungal Activity In the Host Plant Against Botrytis Cinereasupporting

confidence: 56%

Antifungal Activity of Beauveria bassiana Endophyte against Botrytis cinerea in Two Solanaceae Crops

et al. 2019

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“…More recently, several strains of B. bassiana were found to fundamentally diminish the rate and seriousness of the Zucchini yellow mosaic virus (ZYMV; genus Potyvirus, family Potyviridae) in squash (Jaber and Salem, 2014) and downy mildew caused by Plasmopara viticola (Berk. and Curt.)…”

Section: Resultsmentioning

confidence: 99%

Isolation, phenotypic and genotypic characterization of indigenous Beauveria bassiana isolates from date palm infested with Rhynchophorus ferrugineus in Hail region, Saudi Arabia

Asiry¹,

Sulieman²,

Alanazi³

et al. 2018

Biosci. Biotech. Res. Comm

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The red palm weevil (RPW) Rhynchophorus ferrugineus overrun date palm ranches in many parts of Saudi Arabia, henceforth causes massive economic losses. Integrated pest Management (IPM) of the RPW by utilizing Entomopathogenic fungi (Beauveria bassiana), which has antagonistic activity against many insect pests, was the main objective of the current study. In the present study, soil samples, samples of dead red palm weevils (RPW) and palm fronds were collected according to RPW incidence map of Hail region, Saudi Arabia. Isolates of entomopathogenic fungi were isolated from the dead RPW adults and larvae. The fungal culture (BSA1, BH-2 and BH-3) was preserved and maintained for further analysis. Morphological and biochemical characterization of the antagonist fungi were employed and confi rmed that the fungus belonged to Beauveria spp. Further, this fungal isolates were propagated and prepared for genetic characterization. Sequencing of internal transcribed spacers ( ITS1 and ITS2) region was shown that three polymorphic ITS regions. The molecular identifi cation of the fungus strain was employed at King Faisal Universitythe College of Agriculture and Food Science and confi rmed that the fungus identifi ed as Beauveria bassiana as the fi rst record of this benefi cial species in Hail region.

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“…The approach also increased aboveground biomass, 1000-kernel weight and total grain weight. Although endophytic Beauveria is known to suppress damping-off in cotton (Griffin et al, 2005;Griffin, 2007), bacterial blight in tomato (Ownley et al, 2008), zucchini yellow mosaic virus in squash (Jaber and Salem, 2014) and downy mildew in grapevines (Jaber, 2015), its biocontrol potential against FHB in wheat is yet to be explored. Artificial introduction of B. bassiana as an endophyte in wheat or any other host plant implies subjecting the fungus to a different growing environment in terms of nutrients, pH, phytochemicals, etc.…”

Section: Discussionmentioning

confidence: 99%

Comparison of wheat growth-response to endophytic Beauveria bassiana (Hypocreales: Cordycipitaceae) derived from an insect versus plant host

et al. 2019

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Beauveria bassiana (Hypocreales) is a cosmopolitan entomopathogen, infecting >700 insect species. Although traditionally associated with insects, endophytic colonisation of plants is also known. Endophytism may protect plants against insects/diseases and enhance plant growth. Both insect- and plant-derived (endophytic) ‘sources’ of B. bassiana may be present in an agroecosystem, both of which may be in contact with plants. Here, growth response, viz., root length, shoot height, fresh root biomass, fresh and dry shoot biomass of wheat, Triticum aestivum L. (Poaceae), is reported following inoculation with B. bassiana (strain PPRI 7598). The strain was passaged and re-isolated from an insect (IN) versus plant (PL) substrate. When five wheat cultivars were inoculated with either B. bassiana PPRI 7598IN or -PL isolates through seed imbibition, a significantly higher level of endophytism (roots, stems and leaves, combined) was recorded with 7598IN (29.74%) compared to 7598PL (26.13%). Cultivar Baviaans responded best to endophytic colonisation (plant parts combined) at 33.54%, followed by Tugela (31.34%), Kariega (27.87%), Gariep (25.67%) and Elands (21.28%). On average, B. bassiana-treated plants showed a 71% growth increase over control plants. In topically sprayed bioassays, 7598IN caused 57% mortality to Russian wheat aphid, Diuraphis noxia, compared with 50% by 7598PL; also recording a significantly shorter mean time to aphid mortality (4.14 days) versus 7598PL (4.58 days). A significantly higher level of overt mycosis (58.2%) was noted with 7598IN compared with 7598PL (47.9%). Results underscored several positive aspects associated with endophytic B. bassiana in wheat, creating new and exciting IPM possibilities.

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Endophytic colonisation of squash by the fungal entomopathogenBeauveria bassiana(Ascomycota: Hypocreales) for managingZucchini yellow mosaic virusin cucurbits

Cited by 86 publications

References 63 publications

Antifungal Activity of Beauveria bassiana Endophyte against Botrytis cinerea in Two Solanaceae Crops

Antifungal Activity of Beauveria bassiana Endophyte against Botrytis cinerea in Two Solanaceae Crops

Isolation, phenotypic and genotypic characterization of indigenous Beauveria bassiana isolates from date palm infested with Rhynchophorus ferrugineus in Hail region, Saudi Arabia

Comparison of wheat growth-response to endophytic Beauveria bassiana (Hypocreales: Cordycipitaceae) derived from an insect versus plant host

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