Trichoderma species show biocontrol potential in dual culture and greenhouse bioassays against Fusarium basal rot of onion

Bunbury-Blanchette, Adèle L.; Walker, Allison K.

doi:10.1016/j.biocontrol.2018.11.007

Cited by 66 publications

(37 citation statements)

References 41 publications

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“…In this study, six Trichoderma isolates were monopolized with the chalkbrood disease. This genus is a well-know biocontrol method for bacterial and fungal diseases in agriculture [117,118], owing to their excellent ability to colonize different habitats [119,120]. This genus also inhibited the growth of dominant bacterial isolates from pollen and hive-stored bee bread.…”

Section: Discussionmentioning

confidence: 99%

Different Dynamics of Bacterial and Fungal Communities in Hive-Stored Bee Bread and Their Possible Roles: A Case Study from Two Commercial Honey Bees in China

Disayathanoowat

Supapimon

et al. 2020

Microorganisms

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This study investigated both bacterial and fungal communities in corbicular pollen and hive-stored bee bread of two commercial honey bees, Apis mellifera and Apis cerana, in China. Although both honey bees favor different main floral sources, the dynamics of each microbial community is similar. During pH reduction in hive-stored bee bread, results from conventional culturable methods and next-generation sequencing showed a declining bacterial population but a stable fungal population. Different honey bee species and floral sources might not affect the core microbial community structure but could change the number of bacteria. Corbicular pollen was colonized by the Enterobacteriaceae bacterium (Escherichia-Shiga, Panteoa, Pseudomonas) group; however, the number of bacteria significantly decreased in hive-stored bee bread in less than 72 h. In contrast, Acinetobacter was highly abundant and could utilize protein sources. In terms of the fungal community, the genus Cladosporium remained abundant in both corbicular pollen and hive-stored bee bread. This filamentous fungus might encourage honey bees to reserve pollen by releasing organic acids. Furthermore, several filamentous fungi had the potential to inhibit both commensal/contaminant bacteria and the growth of pathogens. Filamentous fungi, in particular, the genus Cladosporium, could support pollen preservation of both honey bee species.

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Section: Discussionmentioning

confidence: 99%

Different Dynamics of Bacterial and Fungal Communities in Hive-Stored Bee Bread and Their Possible Roles: A Case Study from Two Commercial Honey Bees in China

Disayathanoowat

Supapimon

et al. 2020

Microorganisms

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“… Trichoderma harzianum Rifai is one of the most well-known Trichoderma species, due to its antifungal properties and effective bio-control ability, used to suppress soil-borne plant pathogens ( Chaverri et al 2015 ; Degenkolb et al 2015 ; Bunbury-Blanchette and Walker 2019 ). As a cosmopolitan and ubiquitous fungus, it has been isolated from diverse substrates, such as soil, plant tissue, and mushrooms ( Chaverri et al 2015 ; Jaklitsch and Voglmayr 2015 ; Innocenti et al 2019 ; Sun et al 2019b ).…”

Section: Introductionmentioning

confidence: 99%

Four new species of Trichoderma in the Harzianum clade from northern China

Gu¹,

Wang²,

Sun³

et al. 2020

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The Harzianum clade of Trichoderma comprises many species, which are associated with a wide variety of substrates. In this study, four new species of Trichoderma, namely T. lentinulae, T. vermifimicola, T. xixiacum, and T. zelobreve, were encountered from a fruiting body and compost of Lentinula, soil, and vermicompost. Their colony and mycelial morphology, including features of asexual states, were described. For each species, their DNA sequences were obtained from three loci, the internal transcribed spacer (ITS) regions of the ribosomal DNA, the gene encoding the second largest nuclear RNA polymerase subunit (RPB2), the translation elongation factor 1-α encoding gene (TEF1-α). The analysis combining sequences of the three gene regions distinguished four new species in the Harzianum clade of Trichoderma. Among them, T. lentinulae and T. xixiacum clustered with T. lixii, from which these new species differ in having shorter phialides and smaller conidia. Additionally, T. lentinulae differs from T. xixiacum in forming phialides with inequilateral to a strongly-curved apex, cultural characteristics, and slow growth on PDA. Trichoderma vermifimicola is closely related to T. simmonsii, but it differs from the latter by producing phialides in verticillate whorls and smaller conidia. Trichoderma zelobreve is the sister species of T. breve but is distinguished from T. breve by producing shorter and narrower phialides, smaller conidia, and by forming concentric zones on agar plates. This study updates our knowledge of species diversity of Trichoderma.

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“…Many antagonistic microorganisms including Trichoderma spp., Streptomyces spp., Pseudomonas spp., Bacillus spp. have been screened and widely exploited to control a wide range of plant pathogens [8][9][10][11]. Some microorganisms have been identified as biological control agents against M. incognita such as Pasteuria penetrans, B. subtilis, T. harzianum and T. viride, Pochonia chlamydosporia and Purpureocillium lilacinum [12][13][14][15][16].…”

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confidence: 99%

Isolation and effect of Trichoderma citrinoviride Snef1910 for the biological control of root-knot nematode, Meloidogyne incognita

et al. 2020

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Background Root-knot nematode is one of the most significant diseases of vegetable crops in the world. Biological control with microbial antagonists has been emerged as a promising and eco-friendly treatment to control pathogens. The aim of this study was to screen and identify novel biocontrol agents against root-knot nematode, Meloidogyne incognita. Results A total of 890 fungal isolates were obtained from rhizosphere soil of different crops and screened by nematicidal activity assays. Snef1910 strain showed high virulence against second stage juveniles (J2s) of M. incognita and identified as Trichoderma citrinoviride by morphology analysis and biomolecular assay. Furthermore, T. citrinoviride Snef1910 significantly inhibited egg hatching with the hatching inhibition percentages of 90.27, 77.50, and 67.06% at 48, 72, and 96 h after the treatment, respectively. The results of pot experiment showed that the metabolites of T. citrinoviride Snef1910 significantly decreased the number of root galls, J2s, and nematode egg masses and J2s population density in soil and significantly promoted the growth of tomato plants. In the field experiment, the biocontrol application showed that the control efficacy of T. citrinoviride Snef1910 against root-knot nematode was more than 50%. Meanwhile, T. citrinoviride Snef1910 increased the tomato plant biomass. Conclusions T. citrinoviride strain Snef1910 could be used as a potential biological control agent against root-knot nematode, M. incognita.

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Trichoderma species show biocontrol potential in dual culture and greenhouse bioassays against Fusarium basal rot of onion

Cited by 66 publications

References 41 publications

Different Dynamics of Bacterial and Fungal Communities in Hive-Stored Bee Bread and Their Possible Roles: A Case Study from Two Commercial Honey Bees in China

Different Dynamics of Bacterial and Fungal Communities in Hive-Stored Bee Bread and Their Possible Roles: A Case Study from Two Commercial Honey Bees in China

Four new species of Trichoderma in the Harzianum clade from northern China

Isolation and effect of Trichoderma citrinoviride Snef1910 for the biological control of root-knot nematode, Meloidogyne incognita

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