Effect of chlorogenic acid on controlling kiwifruit postharvest decay caused by Diaporthe sp.

Zhang, Danfeng; Bi, Wanling; Kai, Kai; Ye, Yingwang; Liu, Jia

doi:10.1016/j.lwt.2020.109805

Cited by 32 publications

(14 citation statements)

References 49 publications

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“…Kiwifruit is susceptible to infection by various pathogens during storage and transport, resulting in serious deterioration in fruit quality and considerable economic losses [37].…”

Section: Discussionmentioning

confidence: 99%

Antifungal Activity and Biocontrol Mechanism of Fusicolla violacea J-1 against Soft Rot in Kiwifruit Caused by Alternaria alternata

Long

et al. 2021

JoF

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Alternaria alternata is the main pathogenic species of various crops, including kiwifruit (Actinidia cinensis). In this study, an antagonistic fungus, J-1, with high antifungal activity against A. alternata was isolated from A. cinensis “Hongyang.” The strain J-1 was identified as Fusicolla violacea via morphological identification and DNA sequencing. This study aimed to evaluate the antifungal activity and potential mechanism of the strain J-1 against A. alternata. The strain J-1 exhibited antifungal activity against A. alternata, with an inhibition rate of 66.1% in vitro. Aseptic filtrate (AF) produced by the strain J-1 could suppress the mycelial growth and conidia germination of A. alternata at the inhibition rates of 66.8% and 80%, respectively, as well as suppress the spread of Alternaria rot in fresh kiwifruit. We observed that many clusters of spherical protrusions appeared at the mycelial tips of A. alternata after treatment with 200 mL L−1 AF of J-1. Scanning electron microscopy analysis results showed that the mycelial structures were bent and/or malformed and the surfaces were rough and protuberant. Variations in temperature, pH, and storage time had little effect on the antifungal activity of the AF. Moreover, the AF could damage the integrity of cell membranes and cause intracellular content leakage. Meanwhile, the chitinase and β-1,3-glucanase enzyme activities increased significantly, indicating that the function of A. alternata cell wall was seriously injured. Eleven antimicrobial metabolites were identified by gas chromatography–mass spectrometry (GC–MS). The strain J-I and its AF exhibited well broad-spectrum antifungal activity against Diaporthe eres, Epicoccum sorghinum, Fusarium graminearum, Phomopsis sp., and Botryosphaeria dothidea, with inhibition rates ranging from 34.4% to 75.1% and 42.7% to 75.2%, respectively. Fusicolla violacea J-1 is a potential biocontrol agent against A. alternata and other fungal phytopathogens.

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“…Kiwifruit is susceptible to infection by various pathogens during storage and transport, resulting in serious deterioration in fruit quality and considerable economic losses [37].…”

Section: Discussionmentioning

confidence: 99%

Antifungal Activity and Biocontrol Mechanism of Fusicolla violacea J-1 against Soft Rot in Kiwifruit Caused by Alternaria alternata

Long

et al. 2021

JoF

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“…Kiwifruit is rich in nutrients, making it susceptible to infection by various pathogens during growth, storage, and transportation. As a result, the appearance and taste of the fruits are seriously affected, and the reduction in fruit quality can lead to huge economic losses [ 42 ]. With improved quality of life, consumers are paying more attention to food safety.…”

Section: Discussionmentioning

confidence: 99%

Antifungal Activities of Bacillus mojavensis BQ-33 towards the Kiwifruit Black Spot Disease Caused by the Fungal Pathogen Didymella glomerata

et al. 2022

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‘Hongyang’ kiwifruit (Actinidia chinensis, cultivar ‘Hongyang’) black spot disease is caused by the fungal pathogen Didymella glomerata, and is a serious disease, causing considerable losses to the kiwifruit industry during growth of the fruit. Hence, we aimed to identify a potential biocontrol agent against D. glomerata. In this study, bacterial isolates from the rhizosphere soil of kiwifruit were tested for their potential antifungal activity against selected fungal pathogens. Based on a phylogenetic tree constructed using sequences of 16S rDNA and the gyrA gene, BQ-33 with the best antifungal activity was identified as Bacillus mojavensis. We evaluated the antagonistic activity and inhibitory mechanism of BQ-33 against D. glomerata. Confrontation experiments showed that both BQ-33 suspension and the sterile supernatant (SS) produced by BQ-33 possessed excellent broad-spectrum antifungal activity. Furthermore, the SS damaged the cell membrane and cell wall of the mycelia, resulting in the leakage of a large quantity of small ions (Na+, K+), soluble proteins and nucleic acids. Chitinase and β-1,3-glucanase activities in SS increased in correlation with incubation time and remained at a high level for several days. An in vivo control efficacy assay indicated that 400 mL L−1 of SS completely inhibited kiwifruit black spot disease caused by D. glomerata. Therefore, BQ-33 is a potential biocontrol agent against kiwifruit black spot and plant diseases caused by other fungal pathogens. To our knowledge, this is the first report of the use of a rhizosphere microorganism as a biocontrol agent against kiwifruit black spot disease caused by D. glomerata.

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“…Other studies have shown that flavonoids in the plant extracts have certain antibacterial activities (Al-Huqail et al, 2019;Suhaili Shamsi et al, 2018). Chlorogenic acid has been known for antibacterial activities against fungal spore germination, germ tube elongation, and mycelial growth (Zhang et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

The analysis of flavonoids and triterpenes extracted from Urtica by LC‐MS and the antimicrobial activity of the extracts

Quan¹,

Sun²,

Liu³

et al. 2021

J. Food Process. Preserv.

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Functional foods and drug industries have been rapidly developed.Natural products can be used as antioxidants, antimicrobial agents, and raw materials in pharmaceutical production (Dai & Mumper, 2010).Bioactive substances extracted from plants are widely used in medicine and food. Several methods have been developed for extracting, isolating, and purifying flavonoids and triterpenoids. However, more simple, efficient, and less expensive methods to produce large-scale high-quality products are urgently needed.Urtica fissa E. Pritz., Urticaceae is a perennial herb with 100-180cm of the whole plant height, transverse rhizome, tetra-prismatic, densely ciliate and puberulent, sparsely branched. It is a common shadeloving plant, featured by vigorous life, rapid growth, lax soil requirements, favoring of warm and wet characteristics. It usually grows in the hillside, roadside, or house half shade wet place (Weigend, 2006).Urtica is a relatively common wild plant. Its generic name comes from the Latin word urere, meaning "to rub or burn." Stems and leaves of urtica are covered with fine cilia, containing ingredients such as formic acid and histamine. There is an intense burning sensation when stunning (Bourgeois et al., 2016). Urtica is also widely distributed geographically. It grows in Eurasia, North America, and North Africa,

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Effect of chlorogenic acid on controlling kiwifruit postharvest decay caused by Diaporthe sp.

Cited by 32 publications

References 49 publications

Antifungal Activity and Biocontrol Mechanism of Fusicolla violacea J-1 against Soft Rot in Kiwifruit Caused by Alternaria alternata

Antifungal Activity and Biocontrol Mechanism of Fusicolla violacea J-1 against Soft Rot in Kiwifruit Caused by Alternaria alternata

Antifungal Activities of Bacillus mojavensis BQ-33 towards the Kiwifruit Black Spot Disease Caused by the Fungal Pathogen Didymella glomerata

The analysis of flavonoids and triterpenes extracted from Urtica by LC‐MS and the antimicrobial activity of the extracts

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