Effect of postharvest practices including degreening on citrus carpoplane microbial biomes

Gomba, Annancietar; Chidamba, Lizyben; Korsten, Lisé

doi:10.1111/jam.13396

Cited by 21 publications

(10 citation statements)

References 43 publications

(117 reference statements)

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“…Several factors including the frequent visit by the insects and the presence of sugar-rich nectar in the ower could provide an explanation to the development of the ower microbiome, which is unique to that of fruit and leaves (Massoni et al 2020). Likewise, a higher abundance of Pseudoclavibacter was recorded in lotus fruit, this observation was in corroboration to the previous reports on the high abundance of members of Pseudoclavibacter in the unwashed citrus fruits (Gomba et al 2017). Further, the lotus leaves and rhizomes exhibited a high abundance of lactic acid bacteria (LAB) like, Weissella and Leuconostoc.…”

Section: Relative Abundance Of Prokaryotic Communities In the Microha...supporting

confidence: 92%

Prokaryotic communities adapted to microhabitats on the Indian lotus (Nelumbo nucifera) growing in the high-altitude urban Dal Lake

et al. 2022

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Indian lotus (Nelumbo nucifera) is one of the dominant aquatic plants cultivated in Dal Lake, situated at 1586 m above MSL in the northeast of Srinagar, Kashmir. Despite their economic and ecological role, the microbial communities associated with the lotus plant are still unexplored. In this study, we investigated prokaryotic communities harboured by different lotus microhabitats (roots, rhizome, leaves, owers and fruits), lake water, and sediments using 16S rRNA gene amplicon sequencing. Overall, prokaryotic diversity decreased signi cantly on the lotus in comparison to the lake water and sediments. Among the microhabitats of lotus, roots and leaves harboured more diverse communities in comparison to rhizomes, fruits and owers. A total of 98 genera were shared by lotus and the Dal Lake sediments and water.However, signi cant differences were found in their relative abundance, like Pseudomonas was the most dominant genus on most lotus microhabitats. On the other hand, Flavobacterium was highly abundant in the lake water, while a higher abundance of Acinetobacter was recorded in sediments. Additionally, signi cant differences were recorded in the proportion of several genera including Pseudomonas, Clostridium, Sphingomonas, Erwinia, Lactococcus, Rhizobium, Weissella, and Raoultella among the lotus microhabitats. Predicted functions of prokaryotic communities revealed a higher abundance of genes associated with nutrient uptake in the microhabitats of the lotus. This study offered rst-hand information on the prokaryotic communities harboured by lotus plants and water and sediments of the Dal Lake and demonstrated the adaptation of diverse communities to microhabitats of lotus.

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Section: Relative Abundance Of Prokaryotic Communities In the Microha...supporting

confidence: 92%

Prokaryotic communities adapted to microhabitats on the Indian lotus (Nelumbo nucifera) growing in the high-altitude urban Dal Lake

et al. 2022

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“…Products of great concern include cucumbers and tomatoes, which are produced in large amounts in Qatar and are among the most highly consumed vegetables in the Middle East, as well as oranges and strawberries, which are used in great quantities for the production of fresh juices. Therefore, it is of significant concern to understand the spoiling agents behind their shelf-life termination [10,11].…”

Section: Introductionmentioning

confidence: 99%

Fungal food spoilage of supermarkets' displayed fruits

Saleh

Al‐Thani

2019

Vet World

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Background and Aim: Post-harvest fungal infection of fruits and vegetables is mainly caused by fungal pathogens that can be harmful to both human and animals as they produce mycotoxins, post-harvest diseases in fruits and vegetables are a serious problem that results in the loss of a large percentage of crops reaching 50% in some fruits. This study aims at screening the post-purchasing shelf-life of four highly consumed fruits and vegetables and at identifying the fungal strains behind their spoilage in Qatar. Materials and Methods: Fruits and vegetables were collected from the market to study their post-purchasing shelf-life and to identify the fungal types involved in samples rotting. Factors that affect samples' shelf-life were also analyzed. Results: A total of 73 fungal isolates were isolated and identified, with the highest percentage of Penicillium (21.9%) followed by Rhizopus (17.8%). Interestingly, many mycotoxins producing and diseases inducing fungi were identified in this study; this includes Rhizopus, Aspergillus, Penicillium, Alternaria, Fusarium, Cladosporium, Botrytis, Geotrichum, and Colletotrichum. Statistical analysis shows that different fruits have significantly different shelf-life and different predispositions for spoilage. In many cases, a strong relationship was shown between the fungal types isolated and the country of origin of the fruit. Finally, the price of the commodity did not have a significant effect on its contamination level nor did the market from which the sample was purchased. This indicates that the fruit displaying methods in Qatar do not affect their contamination level. Conclusion: The study is among the first reports about fungal types involved in fruits and vegetables rotting in Qatar and it highlights the strong link between spoiling fungi and their country of origin.

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“…The microbial community of foods, such as R. differens, may likely be influenced by the environment from which it is harvested and by the post-harvest handling conditions and processes (Gomba et al, 2017;Leff and Fierer, 2013). In Uganda, following harvesting using light traps (Ssepuuya, 2010), R. differens is manually (by hands) removed from the drums, packaged into aerated polythene/nylon/sisal bags and transported to trading points.…”

Section: Introductionmentioning

confidence: 99%

Microbial characterisation of the edible grasshopper Ruspolia differens in raw condition after wild-harvesting in Uganda

et al. 2019

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This research aimed at establishing the chemical intrinsic properties and the microbial quality of an edible grasshopper Ruspolia differens and the effect of its source (geographical area) in Uganda, trading point, swarming season and plucking on these parameters. The intrinsic properties of the grasshopper can support the growth of a wide variety of microorganisms. High counts of total aerobic microbes, Enterobacteriaceae, lactic acid bacteria, total aerobic spores, and yeasts and moulds were obtained. Metagenetic analyses yielded 1793 Operational Taxonomic Units (OTUs) belonging to 24 phyla. Actinobacteria, Bacteroidetes, Firmicutes, Fusobacteria and Proteobacteria were the most abundant phyla, while members of the genera Acinetobacter, Buttiauxella, Lactococcus, Staphylococcus and Undibacterium were the most abundant OTUs. A number of genera harbouring potential pathogens (Acinetobacter, Bacillus, Buttiauxella, Campylobacter, Clostridium, Staphylococcus, Pseudomonas and Neisseria) were identified. The geographical area, trading point, swarming season and plucking significantly influenced microbial counts and bacterial diversity. The high microbial counts predispose R. differens to fast microbial spoilage, while the presence of Clostridium and Campylobacter makes this grasshopper a potential source of food borne diseases. Further research should identify the specific spoilage microorganisms of R. differens and assess the characteristics of this grasshopper that support growth of food pathogens.

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Effect of postharvest practices including degreening on citrus carpoplane microbial biomes

Cited by 21 publications

References 43 publications

Prokaryotic communities adapted to microhabitats on the Indian lotus (Nelumbo nucifera) growing in the high-altitude urban Dal Lake

Prokaryotic communities adapted to microhabitats on the Indian lotus (Nelumbo nucifera) growing in the high-altitude urban Dal Lake

Fungal food spoilage of supermarkets' displayed fruits

Microbial characterisation of the edible grasshopper Ruspolia differens in raw condition after wild-harvesting in Uganda

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