Volatile organic compounds emitted by Trichoderma azevedoi promote the growth of lettuce plants and delay the symptoms of white mold

Silva, Lincon Rafael da; Valadares-Inglis, M. C.; Peixoto, Gustavo Henrique Silva; Luccas, B. E. G. de; Muniz, Paulo Henrique Pereira Costa; Magalhães, Diego Martins; Moraes, M. C. B.; Mello, S. C. M.

doi:10.1016/j.biocontrol.2020.104447

Cited by 34 publications

(25 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, the best isolate for pathogen control was CEN201, which sporulated 26% less than the best isolate in relation to this aspect (CEN511). This was demonstrated [46] in the selection of Trichoderma for biological control of phytopathogens and promotion of plant growth, it is very important that the microorganism has a high sporulation rate in the chosen culture medium, because in large-scale commercial production, high spore productivity directly influences the reduction the costs of the entire production chain of commercial biological products [44]. Furthermore, the high spore production significantly affects the formulation, shelf life and dose of the product applied in the field [45].…”

Section: Growth Promotion and Pathogen Control In Common Bean With Trichoderma In A Greenhousementioning

confidence: 83%

“…Therefore, sporulation cannot always serve as parameters to indicate that a Trichoderma isolate is better or worse for disease control. This was demonstrated by [46] who evaluated the potential for volatile metabolites of Trichoderma spp. to inhibit the mycelial growth of S. sclerotiorum.…”

Section: Growth Promotion and Pathogen Control In Common Bean With Trichoderma In A Greenhousementioning

confidence: 99%

See 1 more Smart Citation

Characterization of Novel Brazilians Rhizosphere Soil Trichoderma spp. to Select Effective Biocontrol Agents against Sclerotinia sclerotiorum on Beans

Filho

Silva

Muniz

et al. 2021

JSRR

View full text Add to dashboard Cite

Trichoderma spp. are fungus considered one of the most attractive for biological control due to its different mechanisms action against plant pathogens and action to promote plant growth and productivity. The molecular characterization of this group of antagonists is of great importance for conducting studies in the area of biodiversity and for identifying and selecting the possibility of their use in biological control. Objective of this work was to identify 29 Trichoderma isolates based on molecular profiles and phylogenetic analysis sequence the rRNA gene ITS1-5-8S-ITS2, as well as to select the isolates that presented the highest levels of antagonism against S. sclerotiorum and that promoted growth in common bean using experiments in vitro and in a greenhouse. Among the sequences obtained, a total of five different Trichoderma species were identified: T. asperellum, T. harzianum, T. koningiopsis, T. brevicompactum and T. tomentosum. The Trichoderma isolates used showed a variation in the mycelial inhibition of the pathogen by non-volatile metabolites between 84.11% to 100%. Regarding the dry weight of the plants treated with Trichoderma and the pathogen, it was observed that ten Trichoderma isolates promoted plant growth in relation to the control with a variation of 2.6% to 34%. T. asperellum CEN201 proved to be the best candidate to participate in a broader selection that would include field tests for the biological control of S. sclerotiorum and growth promotion in common bean, as in the laboratory and at home of vegetation showed great success in inhibiting the pathogen and promoting plant growth.

show abstract

Section: Growth Promotion and Pathogen Control In Common Bean With Trichoderma In A Greenhousementioning

confidence: 83%

Section: Growth Promotion and Pathogen Control In Common Bean With Trichoderma In A Greenhousementioning

confidence: 99%

Characterization of Novel Brazilians Rhizosphere Soil Trichoderma spp. to Select Effective Biocontrol Agents against Sclerotinia sclerotiorum on Beans

Filho

Silva

Muniz

et al. 2021

JSRR

View full text Add to dashboard Cite

show abstract

“…Furthermore, against the compatible interaction between Sclerotinia spp . and adult lettuces, Trichoderma biocontrol agents have been reported to effectively reduce the seedlings drop (Elias et al, 2016 ), promote plant growth under infection (da Silva et al, 2019 ) and delay the symptoms appearance by emitting volatiles (da Silva et al, 2021 ). Accordingly, our results on baby lettuces demonstrated that Trichoderma strains Ta100, Ta104C, Ta117, Tl35, Ta56, TaIC12, Tat3C1, ThCB, and Th23, belonging to different species, can contain Sclerotinia drop disease, reaching a significant reduction of DSI (around 30%) compared to untreated control (DSI 100%).…”

Section: Discussionmentioning

confidence: 99%

Functional Hyperspectral Imaging by High-Related Vegetation Indices to Track the Wide-Spectrum Trichoderma Biocontrol Activity Against Soil-Borne Diseases of Baby-Leaf Vegetables

et al. 2021

View full text Add to dashboard Cite

Research has been increasingly focusing on the selection of novel and effective biological control agents (BCAs) against soil-borne plant pathogens. The large-scale application of BCAs requires fast and robust screening methods for the evaluation of the efficacy of high numbers of candidates. In this context, the digital technologies can be applied not only for early disease detection but also for rapid performance analyses of BCAs. The present study investigates the ability of different Trichoderma spp. to contain the development of main baby-leaf vegetable pathogens and applies functional plant imaging to select the best performing antagonists against multiple pathosystems. Specifically, sixteen different Trichoderma spp. strains were characterized both in vivo and in vitro for their ability to contain R. solani, S. sclerotiorum and S. rolfsii development. All Trichoderma spp. showed, in vitro significant radial growth inhibition of the target phytopathogens. Furthermore, biocontrol trials were performed on wild rocket, green and red baby lettuces infected, respectively, with R. solani, S. sclerotiorum and S. rolfsii. The plant status was monitored by using hyperspectral imaging. Two strains, Tl35 and Ta56, belonging to T. longibrachiatum and T. atroviride species, significantly reduced disease incidence and severity (DI and DSI) in the three pathosystems. Vegetation indices, calculated on the hyperspectral data extracted from the images of plant-Trichoderma-pathogen interaction, proved to be suitable to refer about the plant health status. Four of them (OSAVI, SAVI, TSAVI and TVI) were found informative for all the pathosystems analyzed, resulting closely correlated to DSI according to significant changes in the spectral signatures among health, infected and bio-protected plants. Findings clearly indicate the possibility to promote sustainable disease management of crops by applying digital plant imaging as large-scale screening method of BCAs' effectiveness and precision biological control support.

show abstract

“…Volatiles act as elicitors of defence and developmental processes, and are considered important cues during plant‐fungus recognition due to their highly diffusible properties (Piechulla, Lemfack, & Kai, 2017; Vinale & Sivasithamparam, 2020). VOCs emitted by Trichoderma include lactones, ketones, alcohols, mono‐ and sesquiterpenes, esters and aldehydes from different metabolic origin and selective bioactivity (da Silva et al, 2020; Nieto‐Jacobo et al, 2017). For instance, the main VOC from T .…”

Section: Introductionmentioning

confidence: 99%

“…atroviride , namely 6‐pentyl‐2H‐pyran‐2‐one (6‐PP) changes root organogenesis modulating both ethylene signalling and auxin transport (Estrada‐Rivera et al, 2019; Garnica‐Vergara et al, 2016; Kottb, Gigolashvili, Großkinsky, & Piechulla, 2015; Zin & Badaluddin, 2020). Overall, the fungal volatile blends may affect chlorophyll content, photosynthetic efficiency and hence carbon metabolism (da Silva et al, 2020; Hung & Lee, 2013; Jalali, Zafari, & Salari, 2017; Lee, Yap, Behringer, Hung, & Bennett, 2016; Nieto‐Jacobo et al, 2017; Wonglom, Ito, & Sunpapao, 2020). However, the molecular mechanisms mediating these responses are unknown.…”

Section: Introductionmentioning

confidence: 99%

Trichoderma atroviride‐emitted volatiles improve growth of Arabidopsis seedlings through modulation of sucrose transport and metabolism

Esparza‐Reynoso

Ruíz-Herrera

Pelagio‐Flores

et al. 2021

Plant Cell & Environment

View full text Add to dashboard Cite

Plants host a diverse microbiome and differentially react to the fungal species living as endophytes or around their roots through emission of volatiles. Here, using divided Petri plates for Arabidopsis-T. atroviride co-cultivation, we show that fungal volatiles increase endogenous sugar levels in shoots, roots and root exudates, which improve Arabidopsis root growth and branching and strengthen the symbiosis. Tissue-specific expression of three sucrose phosphate synthase-encoding genes (AtSPS1F, AtSPS2F and AtSPS3F), and AtSUC2 and SWEET transporters revealed that the gene expression signatures differ from those of the fungal pathogens Fusarium oxysporum and Alternaria alternata and that AtSUC2 is largely repressed either by increasing carbon availability or by perception of the fungal volatile 6-pentyl-2Hpyran-2-one. Our data point to Trichoderma volatiles as chemical signatures for sugar biosynthesis and exudation and unveil specific modulation of a critical, long-distance sucrose transporter in the plant.

show abstract

Volatile organic compounds emitted by Trichoderma azevedoi promote the growth of lettuce plants and delay the symptoms of white mold

Cited by 34 publications

References 32 publications

Characterization of Novel Brazilians Rhizosphere Soil Trichoderma spp. to Select Effective Biocontrol Agents against Sclerotinia sclerotiorum on Beans

Characterization of Novel Brazilians Rhizosphere Soil Trichoderma spp. to Select Effective Biocontrol Agents against Sclerotinia sclerotiorum on Beans

Functional Hyperspectral Imaging by High-Related Vegetation Indices to Track the Wide-Spectrum Trichoderma Biocontrol Activity Against Soil-Borne Diseases of Baby-Leaf Vegetables

Trichoderma atroviride‐emitted volatiles improve growth of Arabidopsis seedlings through modulation of sucrose transport and metabolism

Contact Info

Product

Resources

About