Compositional shifts in the fungal diversity of garlic scapes during postharvest transportation and cold storage

Chen, Junran; Yan, Rong; Hu, Yuanliang; Zhang, Na; Hu, Hanyan

doi:10.1016/j.lwt.2019.108453

Cited by 17 publications

(8 citation statements)

References 43 publications

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“…Garlic scapes, as a fresh vegetable, are rich in protein, carbohydrate, vitamins and minerals that can meet the nutritional needs of human beings. Moreover, garlic scapes exhibit potent antibacterial and healthy functions due to their allicin and other active components 1,2 . However, the harvest of garlic scapes occurs mostly in high‐temperature seasons.…”

Section: Introductionmentioning

confidence: 99%

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The determination of low oxygen threshold in garlic scapes during controlled atmosphere storage

Wang

Peng

et al. 2022

J Sci Food Agric

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BACKGROUND: Garlic scapes are susceptible to browning and rot during storage. In order to extend the storage time, controlled or modified atmosphere storage is usually used to maintain postharvest quality. However, low O 2 or high CO 2 damage easily occurs during atmosphere storage due to its respiration and unsuitable packaging. Therefore, the identification of low O 2 threshold signal has been an urgent issue during atmosphere storage. This work investigated the quality changes and threshold signal during the controlled atmosphere storage of garlic scapes by the detection of ethanol and chlorophyll fluorescence. RESULTS:The results showed that 7% CO 2 /3% O 2 treatment could effectively slow down the decrease of chlorophyll and ascorbic acid, inhibit the accumulation of ethanol and maintain good sensory quality. Under dynamic atmosphere, garlic scapes had a tolerable minimum O 2 threshold of 1.5% by the detection of ethanol, respiratory quotient and chlorophyll fluorescence F0. However, no obvious fluorescence F v /F m breakpoint was detected during dynamic atmosphere storage.CONCLUSIONS: Ethanol and chlorophyll fluorescence F 0 could be used as an indicator of low O 2 damage during atmosphere storage of garlic scapes. The tolerable low O 2 threshold was 1.5% O 2 for garlic scapes storage. This work provided a new insight into the preservation of garlic scapes during atmosphere storage.

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Section: Introductionmentioning

confidence: 99%

“…Moreover, garlic scapes exhibit potent antibacterial and healthy functions due to their allicin and other active components. 1,2 However, the harvest of garlic scapes occurs mostly in high-temperature seasons. After harvest, the garlic scapes are prone to browning, rot, stalk bud swelling and stalk shrinkage during storage.…”

Section: Introductionmentioning

confidence: 99%

The determination of low oxygen threshold in garlic scapes during controlled atmosphere storage

Wang

Peng

et al. 2022

J Sci Food Agric

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“…Upon disease-induced damages, the fungal communities experienced abnormal development in their overall community size and microbial network structure. Microbial co-occurrence networks illustrated the core phyllosphere mycobiota of field-grown broccoli, and mainly comprised members of six genera ( Purpureocillium , Filobasidium , Cystofilobasidium , Papiliotrema , Aureobasidium , and unclassified genera of Capnodiales) that were not observed in other fresh fruits and vegetables [ 4 , 10 , 20 , 47 , 50 , 57 – 59 ]. Using Purpureocillium spp.…”

Section: Discussionmentioning

confidence: 99%

“…Importantly, microbial communities that develop during plant growth persist long after harvest [ 11 ], and the initial composition and diversity of preharvest microbiota have an important influence on the communities that develop during postharvest storage [ 18 ]. Furthermore, preharvest microbiota have also been shown to contribute to food spoilage in harvested crops [ 19 ], via antagonistic or agonistic interactions between commensal and pathogenic community members [ 3 , 20 ]. Such interspecies interactions can be exploited to suppress the growth of potential plant pathogens and improve crop quality by treatment with biocontrol strains in the field and during postharvest storage [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

Composition and variability of core phyllosphere fungal mycobiota on field-grown broccoli

Kim

Park

2023

Environmental Microbiome

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Background Fresh vegetables harbor an assemblage of different microorganisms on their surfaces. The phyllosphere microbiota is important for maintaining plant health and managing crop quality before and after harvest. However, the diversity and ecology of fungal communities are largely unexplored in fresh vegetables. This study investigated the phyllosphere mycobiota of field-grown broccoli florets (n = 66) collected from 22 farms across four regions in Korea, using culturing, amplicon sequencing of the internal transcribed spacer region, and microbial network analysis. Results Microbial network analysis identified core genera (Purpureocillium, Filobasidium, Cystofilobasidium, Papiliotrema, Aureobasidium, and unclassified genera of Capnodiales) specific to the broccoli phyllosphere. The composition and network complexity of core and unique populations varied among farming regions, and was associated with local agro-meteorological conditions. The complexity of microbial associations was higher in mature communities than in immature communities, but complexity was lost upon development of plant pathogenic disease. Broccoli mycobiota were classified according to the dominance of Purpurecillium. While Purpurecillium-type microbiota were prevalent in normal samples, Filobasidium-type microbiota were frequently observed in immature, damaged, or postharvest samples. Conclusions Together, fungal communities were important components of phyllosphere microbiota on fresh vegetables, and have substantial potential for exploitation to enhance and stabilize plant health and growth.

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“…The fungal primers ITS1F (5′-CTTGGTCATTTAGAGGAAGTAA-3′) and ITS2R (5′- GCTGCGTTCTTCATCGATGC-3′) with specific barcodes were used to amplify the ITS1 region of fungal ITS rRNA genes (J. Chen, Yan, Hu, Zhang, & Hu, 2019 ). The TruSeq ® DNA PCR-Free Sample Preparation Kit (Illumina, San Diego, USA) was used to generate the sequencing libraries of bacterial 16S rRNA genes and fungal ITS rRNA genes for high-throughput sequencing.…”

Section: Methodsmentioning

confidence: 99%

The study of microbial diversity and volatile compounds in Tartary buckwheat sourdoughs

et al. 2022

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Compositional shifts in the fungal diversity of garlic scapes during postharvest transportation and cold storage

Cited by 17 publications

References 43 publications

The determination of low oxygen threshold in garlic scapes during controlled atmosphere storage

The determination of low oxygen threshold in garlic scapes during controlled atmosphere storage

Composition and variability of core phyllosphere fungal mycobiota on field-grown broccoli

The study of microbial diversity and volatile compounds in Tartary buckwheat sourdoughs

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