<i>Fusarium avenaceum</i> and <i>Fusarium crookwellens</i> cause onion basal rot in Iran

Jahedi, A.; Safaie, Naser; Goltapeh, Ebrahim Mohammadi

doi:10.1080/03235408.2019.1672913

Cited by 3 publications

(2 citation statements)

References 36 publications

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“…cepae. Other species of the genus Fusarium that also can be the causal agents include F. solani, F. culmorum, F. proliferatum (Jahedi et al, 2019), F. falciforme, and F. brachygibbosum (Tirado-Ramirez et al, 2021). Fo disease attacks shallot plants starting from a bulb phase in storage and infects plants in the field (Cramer, 2000;Tirado-Ramirez et al, 2021).…”

Section: Resultsmentioning

confidence: 99%

Assessing the Impact of Farming Method in Off-Season Period on the Productivity of Shallot (Allium cepa L.): The Case of Low-Organic Sandy-Clay Soil

2023

Agrivita.J.Agr.Sci

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The low productivity of shallot 'Bima Brebes' during the rainy season contributed to increasing Indonesia's economic inflation. This study aimed to assess the sustainability of shallot cultivation in low-organic sandy clay soil during the rainy season in South Sumatera, Indonesia. The study observed the farmer group's actual shallot cultivation method. The research findings were expected to explain the phenomenon of shallot production (Cohen f2) at least 0.50 with a maximum error rate (α) of 0.05 and a probability of making the right decisions (1-β) at least 80%. The variables included climate, soil characteristics, cultivation methods carried out by farmers, plant growth, and shallot production. The cultivated field has sufficient porosity to drain water quickly. Still, it tends to make compaction easier. The diameter of the shallot bulb produced fell into category 1 (size over 2.5 cm) by as much as 31.0%, category 2 (between 2.0-2.5 cm) by 38.0%, and category 3 (between 1.5-2.0 cm) by 17.8%. The loss caused by Fusarium disease was 20.29%. Sustainability of low disease-resistance shallot variety cultivation in low-carbon sandy clay soil during rainy seasons was possible by regulating soil humidity rather than fungicide application.

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Section: Resultsmentioning

confidence: 99%

Assessing the Impact of Farming Method in Off-Season Period on the Productivity of Shallot (Allium cepa L.): The Case of Low-Organic Sandy-Clay Soil

2023

Agrivita.J.Agr.Sci

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“…F. oxysporum has been linked to banana and strawberry wilt (Chand et al, 2021; Koike et al, 2009), potato dry rot (Bayona et al, 2011), ginger rhizome rot (Harsha et al, 2021) and Pinus pinea damping‐off disease (Tahat et al, 2021). Onion basal rot (Jahedi et al, 2019), durum wheat late blight (Gorczyca et al, 2017), damping‐off disease of beech seedlings (Montecchio, 2005) and soybean root rot (Chang et al, 2015) are all caused by F. avenaceum . However, this is the first report of needle blight caused by F. oxysporum and F. avenaceum on P. asperata .…”

Section: Discussionmentioning

confidence: 99%

Morphological and molecular characterization of Fusarium oxysporum and Fusarium avenaceum causing a novel needle blight of Picea asperata in China

Yang

Cui

et al. 2022

Forest Pathology

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Picea asperata is an important native Chinese tree because of its economic and ecological values. As the wood texture of P. asperata is dense, detailed and elastic, the good wood can be used as building, furniture and musical instrument material (Dinulic et al., 2021;Keskin & Atar, 2011;Schuetze, 2018), and it has been reported that P. asperata has great value in paper making (Joelsson et al., 2020). P. asperata is widely used for ornamental and urban greening because of the beautiful figure and evergreen (Kul'kova et al., 2018). In addition, as one of the most important afforestation tree species in western China, it plays an important role in water conservation, soil conservation and ecosystems formation and maintenance in forest areas (Xiong et al., 2019; Yue et al., 2018). However, some pathogens have caused serious diseases in spruce and reduced the economic and ecological value of spruce. A recent report by Stępniewska et al. (2020) showed that Calonectria montana causes damping-off disease in spruce seedlings. An investigation by Swedjemark and Stenlid (1993) indicated that Heterobasidion annosum induced root rot of spruce. Wang et al. (2022) demonstrated that rust fungus Chrysomyxa unger (Coleosporiaceae, Pucciniales) is capable of causing spruce needle and cone rust, especially in spruce plantations and natural forests in northwestern and southwestern China, where needle disease has led to great economic losses. Needle blight

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First Report of Fusarium avenaceum Causing Leaf Spot on Angelica sinensis in China

Zhang

Zhang²,

Zhang

et al. 2022

Plant Disease

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Angelica sinensis (Oliv) Diels (Umbelliferae) is a popular Chinese herb that is mainly distributed in Gansu Province, China, accounting for more than 90% of the national output and sales. A survey for diseases of A. sinensis in Gansu Province in August 2019 found foliar disease with an incidence of 60 to100%, and severities ranging from 5 to 15%. The disease mainly occurred in late July and August. The initial symptoms included many light brown, small lesions, round or irregular in shape, which gradually increased in size. White mycelia was visible in the lesions. Severely affected leaves became chlorotic, withered and died. In the Angelica planting area in Weiyuan County (33°26′N, 104°02′E) diseased leaves from 20 plants were collected by the five-point sampling method (Zheng et al. 2018), and small samples (4 × 4 mm2) wee cut from the border between diseased and healthy tissue, successively sterilized with 75% ethanol for 30 sec, washed three times with sterilized water and dried on sterilized filter paper, and placed on potato dextrose agar plates. After 5 days at 25°C, five morphologically similar colonies were obtained. Colonies were somewhat round with pink overall and formed abundant fluffy white mycelium in the center. Conidia were solitary, macrospores slender, straight to slightly falcate with 2 to 6 septa, and ranged from 20.0 to 77.6 µm × 2.5 to 3.6 µm (n=50). The microspores were elliptical and ranged from 3.0 to 8.0 µm × 2.5 to 3.0 µm (n=5). The strong pink pigment was observed on the reverse side of the PDA culture. The morphological characteristics were consistent with the description of Fusarium avenaceum (Parikh et al. 2018; Jahedi et al. 2019). To further identify the strains, the internal transcribed spacer (ITS), β-tubulin, translation elongation factor 1α (EF1-α), and RNA polymerase second largest subunit (RPB2) gene regions were amplified with ITS1/ITS4, Bt2a/Bt2b, EF1/EF2, and 5f2/7cr (Glass and Donaldson 1995; O’Donnell et al. 2010; White et al. 1990), respectively. The sequences of the five strains were identical, and that of representative strain K0721 were deposited in GenBank (ITS, MZ389899; TUB2, MZ398139; EF1-α, MZ388462; RPB2, MZ394004). BLAST analysis revealed that the ITS, β-tubulin, EF1-α, and RPB2 sequences were 100% (563/563), 100% (423/423), 99% (643/649), and 99% (930/935) homology, with those of F. avenaceum (KP295511.1, KY475586.1, KU999088.1, and MH582082.1), respectively. A multigene phylogenetic tree was inferred by Maximum likelihood phylogenetic analyses based on the combined data set with ITS, EF1-α and RPB2. The strain K0721 was clustered with F. avenaceum. Pathogenicity tests were performed on five 1-month-old healthy plants in plastic pots (20 cm. diam.) with sterilized soil. Each was sprayed with 50 μl of a conidial suspension (1×104 conidia/mL), and 5 healthy plants were sprayed with sterile water as controls. Small lesions were observed after 5 days at 25℃ in a greenhouse. Symptoms were similar to those observed under field conditions. Control plants remained symptomless. Six isolates were reisolated from infected leaves and all confirmed to be F. avenaceum based on morphological observations and molecular identification. To our knowledge, only Septoria anthrisci has been previously reported as a pathogen of A. sinensis leaf spot (Wang et al. 2018), and this is the first report of F. avenaceum causing this disease. This discovery needs to be considered in developing and implementing disease management programs in A. sinensis production.

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Fusarium avenaceum and Fusarium crookwellens cause onion basal rot in Iran

Cited by 3 publications

References 36 publications

Assessing the Impact of Farming Method in Off-Season Period on the Productivity of Shallot (Allium cepa L.): The Case of Low-Organic Sandy-Clay Soil

Assessing the Impact of Farming Method in Off-Season Period on the Productivity of Shallot (Allium cepa L.): The Case of Low-Organic Sandy-Clay Soil

Morphological and molecular characterization of Fusarium oxysporum and Fusarium avenaceum causing a novel needle blight of Picea asperata in China

First Report of Fusarium avenaceum Causing Leaf Spot on Angelica sinensis in China

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