First Report of <i>Fusarium lichenicola</i> as a Causal Agent of Fruit Rot in Pomelo (<i>Citrus maxima</i>)

Amby, Daniel Buchvaldt; Thuy, Tran Thi Thanh; Ho, B. D.; Kosawang, Chatchai; Son., T. B. West; Jørgensen, Hans Jørgen Lyngs

doi:10.1094/pdis-10-14-1017-pdn

Cited by 6 publications

(4 citation statements)

References 3 publications

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“…Previously, the pathogen had been isolated from pomelo fruits grown in Vietnam, as a post-harvest pathogen during shipment, causing watersoaking and soft rot symptoms on fruits of Citrus spp. (Amby et al 2015). The TEF-1 sequence identity between this isolate and the one from cannabis was 99.4%.…”

Section: Discussionmentioning

confidence: 80%

The Fusarium solani species complex infecting cannabis (Cannabis sativa L., marijuana) plants and a first report of Fusarium (Cylindrocarpon) lichenicola causing root and crown rot

Punja

Roberts

2021

Canadian Journal of Plant Pathology

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Greenhouse-grown cannabis (Cannabis sativa L., marijuana) plants with yellowing, crown rot and root-browning symptoms were sampled from six production facilities during 2019-2020. Among 34 fungal isolates recovered, 28 were identified as Fusarium solani and six isolates were provisionally identified as Cylindrocarpon sp. based on morphology. These latter isolates produced slowgrowing colonies with grey-white aerial mycelium and a chestnut-brown colour below. Cylindrical 1-3 septate conidia without a distinctive foot cell were produced. Microconidia were absent and chlamydospores were produced in culture. Phylogenetic analysis of three isolates based on the elongation factor (TEF-1 α) and ITS1-5.8S-ITS2 regions identified them as Fusarium lichenicola (formerly Cylindrocarpon lichenicola), a member of F. solani species complex (FSSC) subclade 16. Pathogenicity tests using a mycelial and spore suspension were performed on cannabis cuttings and rooted plants. Isolates of F. solani originating from diseased crowns caused symptoms in 10-14 days, while those of F. lichenicola caused yellowing and wilting after 3 weeks, suggesting that F. lichenicola is less virulent. Inoculum of F. lichenicola was detected in coco coir samples used for plant propagation. Previous reports of F. lichenicola are from tropical climates, where the fungus has been associated with dermal and ocular infections of human tissues, with a few reports of it causing diseases on pomelo fruits, taro corms and tea plants. This study demonstrates the first occurrence worldwide of F. lichenicola on cannabis plants, on which it is considered a weak introduced tropical pathogen, likely to have originated from coco coir imported into Canada.

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Section: Discussionmentioning

confidence: 80%

The Fusarium solani species complex infecting cannabis (Cannabis sativa L., marijuana) plants and a first report of Fusarium (Cylindrocarpon) lichenicola causing root and crown rot

Punja

Roberts

2021

Canadian Journal of Plant Pathology

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“…Notes — This species is an infrequent agent of human disease, known from localised and invasive infections such as keratitis (Champa et al 2013), onychomycosis (Guevara-Suarez et al 2016), mycetoma (Chazan et al 2004), intertrigo in warm climates, disseminated infection (Rodriguez-Villalobos et al 2003) and peritonitis (Liu 2011). In addition, it is acknowledged as a phytopathogenic agent infecting Camellia sinensis (Shaw 1984), and causing corm rot of Colocasia esculenta (Usharani & Ramarao 1981) and fruit rot of pomelo ( Citrus maxima ) (Amby et al 2015, Farr & Rossman 2017).…”

Section: Resultsmentioning

confidence: 99%

Removing chaos from confusion: assigning names to common human and animal pathogens in Neocosmospora

Sandoval-Denis

Crous

2018

persoonia

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The genus Neocosmospora encompasses highly prevalent and aggressive human and animal fungal pathogens. Here we assign formal descriptions and Latin binomials to some of the most clinically relevant phylogenetic species of the genus. Three new species, named Neocosmospora catenata , N. gamsii and N. suttoniana (previously assigned to the informal names ‘ Fusarium ’ solani species complex (FSSC) lineages, FSSC 43, FSSC 7 and FSSC 20, respectively) are described on the basis of multilocus phylogenetic analyses (using EF-1α , ITS, LSU and RPB2 loci) and morphological characters. Lineage FSSC 9 is conspecific with the ex-type strain of Cylindrocarpon tonkinense , thus the new combination Neocosmospora tonkinensis is proposed. In addition, and based on the latest taxonomy for this generic complex, new combinations are introduced for four medically important taxa : Neocosmospora keratoplastica , N. lichenicola , N. metavorans and N. petroliphila . The most significant distinctive features for all the clinically relevant species treated here are compared and illustrated.

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“…However, Fusarium species, including F. oxysporum and F. avenaceum, also play crucial roles in the root rot complex [2,[9][10][11]. In recent years, F. proliferatum has been reported with increasing frequency as a cause of root rot, crown rot, yellowing, and wilting in various vegetable, fruit, and field crops [12][13][14][15]. Several Fusarium spp., including F. proliferatum, were the most frequently isolated fungi in diseased canola root and stem samples collected from central and northern Alberta, Canada, in 2021 [9].…”

Section: Introductionmentioning

confidence: 99%

Characterization of the Virulence and Yield Impact of Fusarium Species on Canola (Brassica napus)

Yu,

Chang,

Hwang

et al. 2023

Plants

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Multiple species of Fusarium can contribute to the development of root rot in canola (Brassica napus), making disease management difficult. We conducted field and greenhouse experiments to investigate the impacts of Fusarium avenaceum and Fusarium proliferatum, and the interaction between Fusarium oxysporum and F. proliferatum on root rot severity and canola yields. Inoculation with any of the three Fusarium spp. resulted in significant disease severity and reduced seedling emergence compared with non-inoculated controls, leading to yield reductions of up to 35%. Notably, there was a strong correlation (r = 0.93) between root rot severity at the seedling stage and at maturity. Regression analysis indicated a linear decline in seedling emergence with increasing disease severity. Furthermore, disease severity at maturity adversely affected the pod number per plant and the seed weight per plant, with both parameters ultimately approaching zero at a severity of 4.0 on a 0–4 scale. Co-inoculation with F. oxysporum and F. proliferatum induced more severe root rot than inoculation with each species on its own, suggesting synergistic interactions between these fungi. Knowledge of these interactions and the relative virulence of Fusarium spp. will contribute to the improved management of root rot in canola.

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First Report of Fusarium lichenicola as a Causal Agent of Fruit Rot in Pomelo (Citrus maxima)

Cited by 6 publications

References 3 publications

The Fusarium solani species complex infecting cannabis (Cannabis sativa L., marijuana) plants and a first report of Fusarium (Cylindrocarpon) lichenicola causing root and crown rot

The Fusarium solani species complex infecting cannabis (Cannabis sativa L., marijuana) plants and a first report of Fusarium (Cylindrocarpon) lichenicola causing root and crown rot

Removing chaos from confusion: assigning names to common human and animal pathogens in Neocosmospora

Characterization of the Virulence and Yield Impact of Fusarium Species on Canola (Brassica napus)

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