Report of postharvest rot of kiwifruit in Korea caused by Sclerotinia sclerotiorum

Lee, Jung Han; Kwon, Young Ho; Kwack, Yong-Bum; Kwak, Youn‐Sig

doi:10.1016/j.ijfoodmicro.2015.05.001

Cited by 12 publications

(9 citation statements)

References 6 publications

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“…However, with the rapid expansion of kiwifruit planting and the increase in tree age, the number of diseases and insect pests caused by pathogen infection during kiwifruit planting and storage is increasing. Soft rot is an important disease of kiwifruit during ripening and storage at room temperature, causing great economic losses (Lee et al., 2015). The average incidence of kiwifruit in Sichuan, Guizhou, Jiangxi and other major kiwifruit‐producing areas in China is 20%–50%.…”

Section: Discussionmentioning

confidence: 99%

Diaporthe xiuwenensis sp. nov, a new fungal species causing postharvest kiwifruit rot in Guizhou

Ren,

Liu,

et al. 2024

Journal of Phytopathology

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Diaporthe spp. (including their asexual Phomopsis states) are important plant pathogens found widely in different host plants, such as pathogens, endophytes or saprobes. In this study, a new species of Diaporthe causing fruit rot in kiwifruit, Diaporthe xiuwenensis sp. nov was isolated from kiwifruit with apparent soft rot symptoms during storage in Guizhou Province, China. Identification was made using morphology and comparison of DNA sequence data of the nuclear ribosomal ITS (internal transcribed spacer) + tef1 (translation elongation factor‐1α) + tub2 (β‐tubulin) + cal (calmodulin) + his (histone H3) gene regions. This study further described a new Diaporthe species and discussed its morphology and phylogenetic relationships with other Diaporthe species. Koch's postulates tests identified the causative agents of kiwifruit soft rot. The results of pathogenicity test showed that Diaporthe xiuwenensis sp. nov was pathogenic to kiwifruit, and the Koch's postulates were completed.

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Section: Discussionmentioning

confidence: 99%

Diaporthe xiuwenensis sp. nov, a new fungal species causing postharvest kiwifruit rot in Guizhou

Ren,

Liu,

et al. 2024

Journal of Phytopathology

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“…S. sclerotiorum can cause diseases with different symptoms such as sclerotinia rot, stem rot, white mold, stem canker, shoot blight, blossom blight, crown rot, and fruit rot [ 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 ]. In Oregon, USA, and central Chile, it has been reported that S. sclerotiorum caused blossom blight and fruit rot on sweet cherry [ 14 , 21 ].…”

Section: Discussionmentioning

confidence: 99%

“…A preliminary identification was conducted based on colony morphology and sclerotia characteristics [ 34 ]. To observe colony morphology, 5-mm mycelial plugs taken from the edges of the actively growing cultures were placed on PDA and incubated at 25 °C under a 12 h photoperiod.…”

Section: Methodsmentioning

confidence: 99%

Occurrence and Characterization of Sclerotinia sclerotiorum Causing Fruit Rot on Sweet Cherry in Southern China

Ruan,

Huang,

Luo

et al. 2023

Plants

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Sweet cherry (Prunus avium L.) is widely planted in northern China due to its high economic value, and its cultivation has gradually spread south to warm regions. However, fruit rot, observed on the young fruits, poses a considerable threat to the development of sweet cherry. To determine the causal agent, morphological observation, molecular identification, and pathogenicity tests were performed on isolates obtained from diseased fruits. As a result, Sclerotinia sclerotiorum was identified as the pathogen. Pathogenicity tests on different sweet cherry cultivars indicated that ‘Summit’ was highly sensitive to S. sclerotiorum, whereas ‘Hongmi’ showed significant resistance. Besides sweet cherry, S. sclerotiorum could also infect other vegetable crops we tested, such as cowpea, soybean, tomato, and chili. Fungicide sensitivity and efficacy assays showed that both fludioxonil and pyraclostrobin can effectively inhibit the mycelial growth of S. sclerotiorum and decrease disease incidences on the young fruits of sweet cherry. Furthermore, genome sequencing resulted in a 37.8 Mb assembly of S. sclerotiorum strain ScSs1, showing abundant SNPs, InDels, and SVs with the genome of S. sclerotiorum reference strain 1980 UF-70. The above results provide an important basis for controlling the fruit rot of sweet cherry caused by S. sclerotiorum in China.

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“…Using the conventional tissue separation method 11 as described in Section S1 (Data S1), pathogenicity tests proved Koch's postulates, 11 and a strongly pathogenic strain was selected for morphological and molecular identification. The morphological identification of the strain was performed as previously described.…”

Section: Methodsmentioning

confidence: 99%

Honokiol inhibits Botryosphaeria dothidea, the causal pathogen of kiwifruit soft rot, by targeting membrane lipid biosynthesis

Zhang,

Chen,

Yin

et al. 2023

Pest Management Science

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BACKGROUNDKiwifruit soft rot is mainly caused by Botryosphaeria dothidea, representing a considerable threat to kiwifruit industry. This investigation assessed the inhibitory consequences and mechanisms of honokiol against B. dothidea, evaluating the inhibitory effects and underlying mechanism.RESULTSA strain of B.dothidea (XFCT‐2) was isolated from infected soft rot kiwifruit. The findings indicate that honokiol hindered the mycelial growth, conidial germination, and pathogenicity of B. dothidea in a dose‐dependent manner, both in vitro and in vivo. Furthermore, ultrastructural examinations showed that honokiol impaired the integrity of B. dothidea, leading to an elevation in cell membrane permeability, engendering a multitude of intracellular substance extravasations and hampering energy metabolism. Transcriptome analysis exhibited that honokiol‐regulated genes were related to membrane lipid biosynthesis, comprising ACC1, FAS2, Arp2, gk, Cesle, and Etnk1. These findings indicate that honokiol impedes B. dothidea by obstructing lipid biosynthesis within the cell membrane and compromising its integrity, halting the growth of the mycelia, which could potentially cause cellular demise.CONCLUSIONThis investigation illustrates how honokiol functions as an eco‐friendly approach to prevent the occurrence of soft rot in kiwifruits. © 2023 Society of Chemical Industry.

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Report of postharvest rot of kiwifruit in Korea caused by Sclerotinia sclerotiorum

Cited by 12 publications

References 6 publications

Diaporthe xiuwenensis sp. nov, a new fungal species causing postharvest kiwifruit rot in Guizhou

Diaporthe xiuwenensis sp. nov, a new fungal species causing postharvest kiwifruit rot in Guizhou

Occurrence and Characterization of Sclerotinia sclerotiorum Causing Fruit Rot on Sweet Cherry in Southern China

Honokiol inhibits Botryosphaeria dothidea, the causal pathogen of kiwifruit soft rot, by targeting membrane lipid biosynthesis

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