Exploring the microbial communities associated with Botrytis cinerea during berry development in table grape with emphasis on potential biocontrol yeasts

Carmichael, Patricia C.; Siyoum, Nazareth A.; Chidamba, Lizyben; Korsten, Lisé

doi:10.1007/s10658-019-01710-5

Cited by 11 publications

(6 citation statements)

References 48 publications

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“…The Ascomycota and Basidiomycota phyla have generally been reported to dominate fruit fungal profiles (Carmichael et al, 2019;Shen et al, 2018) and similar observations were made in the current study. Other fungal phyla not reported to be prevalent on avocado such as Mucoromycotina were also detected in the present study.…”

Section: Discussionsupporting

confidence: 89%

Fungal microbiome shifts on avocado fruit associated with a combination of postharvest chemical and physical interventions

Bill

Gokul

Viljoen

et al. 2022

Journal of Applied Microbiology

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Aim of the Study:The aim was to characterize the baseline microbial population of the avocado carposphere and understand shifts in community structure from the harvest to ready-to-eat stages. Methods and Results: The changes in surface or stem-end (SE) fungal microbiomes at the postharvest stage of avocado fruit were studied using next-generation sequencing of the internal transcribed spacer region. Avocado fructoplane and SE pulp fungal richness differed significantly between postharvest stages with a decline following prochloraz dip treatments. Known postharvest decay-causing genera, Colletotrichum, Fusarium, Alternaria, Epicoccum, Penicillium and Neofusicoccum were detected, with Papiliotrema, Meyerozyma and Aureobasidium confirmed as the most dominant potentially beneficial genera. Postharvest interventions such as prochloraz had a negative non-target effect on the presence of Papiliotrema flavescens on the avocado fructoplane. Conclusion:Our findings reveal a core community of beneficial and pathogenic taxa in the avocado fructoplane and further highlight the reduction of pathogenic fungi as a consequence of fungicide use. Significance and Impact of the Study:The current study provides important baseline data for further exploration of fungal population shifts in avocado fruit driven by chemical (fungicide) as well as physical (cold storage) interventions.

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Section: Discussionsupporting

confidence: 89%

Fungal microbiome shifts on avocado fruit associated with a combination of postharvest chemical and physical interventions

Bill

Gokul

Viljoen

et al. 2022

Journal of Applied Microbiology

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“…Furthermore, the fruit stem harboured a less diverse community compared to the stem-end pulp across all stages of fruit development. Generally, the Ascomycota and Basidiomycota phyla have been reported to dominate fruit fungal profiles [50,53], including the flowering stage in apple, pear and fig [47,54,55] as previously mentioned. Similar observations were made in the current study, as well as the presence of other fungal phyla such as Mucoromycotina and Entomophthoromycota, previously not reported as prevalent on mango.…”

Section: Microbial Diversity and Composition At The Pre-and Post-harvest Stages Of Mangomentioning

confidence: 63%

“…Flowers at the full bloom stage attract a diverse range of floral visitors including pollinating and non-pollinating insects that may transfer microbial organisms to the flower [49], thus enhancing microbial richness when compared to other developmental phases such as fruit-set and mature fruit stages [50]. The high level of sugars and certain nutrients further contributes to the establishment of a rich microflora [3].…”

Section: Microbial Diversity and Composition At The Pre-and Post-harvest Stages Of Mangomentioning

confidence: 99%

Mango Endophyte and Epiphyte Microbiome Composition during Fruit Development and Post-Harvest Stages

et al. 2021

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The influence of the development stage and post-harvest handling on the microbial composition of mango fruit plays a central role in fruit health. Hence, the composition of fungal and bacterial microbiota on the anthoplane, fructoplane, stems and stem-end pulp of mango during fruit development and post-harvest handling were determined using next-generation sequencing of the internal transcribed spacer and 16S rRNA regions. At full bloom, the inflorescence had the richest fungal and bacterial communities. The young developing fruit exhibited lower fungal richness and diversities in comparison to the intermediate and fully developed fruit stages on the fructoplane. At the post-harvest stage, lower fungal and bacterial diversities were observed following prochloraz treatment both on the fructoplane and stem-end pulp. Ascomycota (52.8%) and Basidiomycota (43.2%) were the most dominant fungal phyla, while Penicillium, Botryosphaeria, Alternaria and Mucor were detected as the known post-harvest decay-causing fungal genera. The Cyanobacteria (35.6%), Firmicutes (26.1%) and Proteobacteria (23.1%) were the most dominant bacterial phyla. Changes in the presence of Bacillus subtilis following post-harvest interventions such as prochloraz suggested a non-target effect of the fungicide. The present study, therefore, provides the primary baseline data on mango fungal and bacterial diversity and composition, which can be foundational in the development of effective disease (stem-end rot) management strategies.

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“…While the biocontrol mechanisms on table grapes have been widely investigated, the antagonism of yeasts against B. cinerea in raisin grapes is poorly documented. The work of Ribereau-Gayon in 1970 [ 82 ] suggested that B. cinerea acts as an active component in the raisins of certain grapes. The role of Botrytis depends on the environmental conditions.…”

Section: Yeast Applications Against Pathogenic Fungi Of the Grape In Post-harvestmentioning

confidence: 99%

The Role of Yeasts as Biocontrol Agents for Pathogenic Fungi on Postharvest Grapes: A Review

Canito

Mateo-Vargas

Mazzieri

et al. 2021

Foods

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In view of the growing concern about the impact of synthetic fungicides on human health and the environment, several government bodies have decided to ban them. As a result, a great number of studies have been carried out in recent decades with the aim of finding a biological alternative to inhibit the growth of fungal pathogens. In order to avoid the large losses of fruit and vegetables that these pathogens cause every year, the biological alternative’s efficacy should be the same as that of a chemical pesticide. In this review, the main studies discussed concern Saccharomyces and non-Saccharomyces yeasts as potential antagonists against phytopathogenic fungi of the genera Penicillium and Aspergillus and the species Botrytis cinerea on table grapes, wine grapes, and raisins.

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Exploring the microbial communities associated with Botrytis cinerea during berry development in table grape with emphasis on potential biocontrol yeasts

Cited by 11 publications

References 48 publications

Fungal microbiome shifts on avocado fruit associated with a combination of postharvest chemical and physical interventions

Fungal microbiome shifts on avocado fruit associated with a combination of postharvest chemical and physical interventions

Mango Endophyte and Epiphyte Microbiome Composition during Fruit Development and Post-Harvest Stages

The Role of Yeasts as Biocontrol Agents for Pathogenic Fungi on Postharvest Grapes: A Review

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