Contribution of Leaf-Associated Microorganisms from Native Andean Ericaceae against Botrytis cinerea in Vaccinium corymbosum Cultivars

Sanhueza, Tedy; Herrera, Héctor; Arriagada, César

doi:10.1007/s42729-023-01220-8

Cited by 5 publications

(2 citation statements)

References 91 publications

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“…The research mentioned above agrees with the higher levels of TPC detected in MEE, in comparison with TPC detected in the methanolic extract obtained from Nassauvia dentata [ 48 ], because MEE has a higher antifungal effect than the methanolic extract from Nassauvia dentata , against R. solani. Another modality of antifungal activity consists of biocontrol agents against the fungus Botrytis cinerea , using microorganisms inhabiting the leaf surface of E. rubrum [ 58 ].…”

Section: Resultsmentioning

confidence: 99%

Antioxidant and Antifungal Activities and Characterization of Phenolic Compounds Using High-Performance Liquid Chromatography and Mass Spectrometry (HPLC-MS) in Empetrum rubrum Vahl ex Willd.

Schneider,

González-Reyes,

Vergara

et al. 2024

Plants

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In searching for compounds with antioxidant and antifungal activity, our study focused on the subshrub species Empetrum rubrum Vahl ex Willd. (Ericaceae). We measured the antioxidant activity of its methanolic extract (MEE) obtained from the aerial parts (leaves and stems) and of its methanolic extract (MEF) obtained from the lyophilized fruits. The antioxidant activity of the MEE and MEF was evaluated in vitro via a 2,2-Diphenyl-1-picrylhydrazyl (DPPH) free radical and 2,2′-Azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) cationic radical. The results were expressed in gallic acid and Trolox equivalents for the DPPH and ABTS assays, respectively. The antioxidant activities, for the DPPH and ABTS assays, were also evaluated by considering the IC50 values. Concerning the antioxidant activity, the total phenolic content (TPC) in the MEE and MEF was determined using the Folin–Ciocalteu method. Polyphenols contained in the leaves, stems, and fruits of E. rubrum were determined qualitatively by employing high-performance liquid chromatography coupled with mass spectrometry (HPLC-MS) analysis. The antifungal activity of the MEE obtained from the aerial parts of E. rubrum was tested against Rhizoctonia solani. The results of IC50 values measured by the DPPH and ABTS methods with MEE were 0.4145 ± 0.0068 mg mL−1 and 0.1088 ± 0.0023 mg mL−1, respectively, and the IC50 values for MEF were 6.4768 ± 0.0218 mg mL−1 and 0.7666 ± 0.0089 mg mL−1 measured by the DPPH and ABTS methods, respectively. The HPLC-MS analysis revealed the presence of anthocyanins, phenolic acids derivatives, and flavonols. In vitro, mycelial growth of this fungus was reduced from 90% to nearly 100% in the presence of MEE. The observed antifungal effect is related to the presence of the abovementioned phenols, detected in the MEE.

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Section: Resultsmentioning

confidence: 99%

Antioxidant and Antifungal Activities and Characterization of Phenolic Compounds Using High-Performance Liquid Chromatography and Mass Spectrometry (HPLC-MS) in Empetrum rubrum Vahl ex Willd.

Schneider,

González-Reyes,

Vergara

et al. 2024

Plants

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“…Symbiotic fungi and bacteria, such as Bacillus , Paenibacillus , and Pantoea have been isolated from wild plants and have demonstrated biocontrol potential against pathogenic organisms [ 140 ]. Similarly, the yeast Aureobasidium pullulans has been classified as an effective antagonist against major foliar pathogens [ 141 ]. This yeast has been isolated from wild environments, such as deserts and tree leaves [ 142 , 143 ].…”

Section: Role Of Juvenile Plant–microbe Symbiosis In Native Forest Re...mentioning

confidence: 99%

Juvenile Plant–Microbe Interactions Modulate the Adaptation and Response of Forest Seedlings to Rapid Climate Change

Sanhueza,

Hernández,

Sagredo-Sáez

et al. 2024

Plants

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The negative impacts of climate change on native forest ecosystems have created challenging conditions for the sustainability of natural forest regeneration. These challenges arise primarily from abiotic stresses that affect the early stages of forest tree development. While there is extensive evidence on the diversity of juvenile microbial symbioses in agricultural and fruit crops, there is a notable lack of reports on native forest plants. This review aims to summarize the critical studies conducted on the diversity of juvenile plant–microbe interactions in forest plants and to highlight the main benefits of beneficial microorganisms in overcoming environmental stresses such as drought, high and low temperatures, metal(loid) toxicity, nutrient deficiency, and salinity. The reviewed studies have consistently demonstrated the positive effects of juvenile plant–microbiota interactions and have highlighted the potential beneficial attributes to improve plantlet development. In addition, this review discusses the beneficial attributes of managing juvenile plant–microbiota symbiosis in the context of native forest restoration, including its impact on plant responses to phytopathogens, promotion of nutrient uptake, facilitation of seedling adaptation, resource exchange through shared hyphal networks, stimulation of native soil microbial communities, and modulation of gene and protein expression to enhance adaptation to adverse environmental conditions.

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Endophytic seed-associated microbial diversity and its impact on seedling growth of the Andean tree Nothofagus obliqua (Mirb.) Oerst

Alvarado,

Sagredo-Saez,

Fuentes-Quiroz

et al. 2024

Plant Growth Regul

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Contribution of Leaf-Associated Microorganisms from Native Andean Ericaceae against Botrytis cinerea in Vaccinium corymbosum Cultivars

Cited by 5 publications

References 91 publications

Antioxidant and Antifungal Activities and Characterization of Phenolic Compounds Using High-Performance Liquid Chromatography and Mass Spectrometry (HPLC-MS) in Empetrum rubrum Vahl ex Willd.

Antioxidant and Antifungal Activities and Characterization of Phenolic Compounds Using High-Performance Liquid Chromatography and Mass Spectrometry (HPLC-MS) in Empetrum rubrum Vahl ex Willd.

Juvenile Plant–Microbe Interactions Modulate the Adaptation and Response of Forest Seedlings to Rapid Climate Change

Endophytic seed-associated microbial diversity and its impact on seedling growth of the Andean tree Nothofagus obliqua (Mirb.) Oerst

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