Cryptic species of Curvularia in the culture collection of the Queensland Plant Pathology Herbarium

Tan, Yu Pei; Crous, Pedro W.; Shivas, R. G.

doi:10.3897/mycokeys.35.25665

Cited by 40 publications

(38 citation statements)

References 17 publications

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“…In order to accurately identify our strains, phylogenetic analysis included all ex-type and published strains of all Curvularia spp. described recently (Hyde et al 2017;Marin-Felix et al 2017;Dehdari et al 2018;Heidari et al 2018;Hernández-Restrepo et al 2018;Mehrabi-Koushki et al 2018;Tan et al 2018;Jayawardena et al 2019) which are listed in Table 1. The final alignment comprised 2032 characters (each gene fragment was separated with 2 "N") including gaps (ITS: 1−600, GAPDH: 603−1162 and tef1: 1165−2032).…”

Section: Phylogenetic Analysesmentioning

confidence: 99%

Diseases of Cymbopogon citratus (Poaceae) in China: Curvularia nanningensis sp. nov.

Zhang¹,

Yang²,

Cheng³

et al. 2020

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Five Curvularia strains isolated from diseased leaves of lemongrass (Cymbopogon citratus) in Guangxi Province, China, were examined. NCBI-Blast searches of ITS sequences suggested a high degree of similarity (99–100%) to Curvularia akaii, C. akaiiensis, C. bothriochloae, C. heteropogonis and C. sichuanensis. To accurately identify these strains, we further analysed their morphology and phylogenetic relationships based on combinations of ITS, GAPDH, and tef1 gene sequences. Morphological observations indicated that the key character differing from similar species was conidial size, whereas phylogenetic analyses indicated that the five strains represent one species that is also distinct from C. akaii, C. akaiiensis and C. bothriochloae by conidial size and conidiophore length. Thus, the strains examined are found to represent a new species described herein as Curvularia nanningensis. The pathogenicity test on the host and detached leaves confirmed the new species to be pathogenic on Cymbopogon citratus leaves. Standardised requirements for reliable identification of Curvularia pathogens are also proposed.

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Section: Phylogenetic Analysesmentioning

confidence: 99%

Diseases of Cymbopogon citratus (Poaceae) in China: Curvularia nanningensis sp. nov.

Zhang¹,

Yang²,

Cheng³

et al. 2020

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“…The obtained sequences were deposited in GenBank with accession numbers of MK507796 (ITS), MK507794 (gapdh) and MK507795 (tef1). A maximum likelihood tree was constructed using representative isolates of 24 relevant species (Tan et al 2018) to determine the phylogenetic relationship (Fig. 3).…”

mentioning

confidence: 99%

“…In the resulting phylogram, the present isolate was demonstrated as a separate species of Curvularia which supported the morphological results of C. curculiginis (Zhang and Zhang 2003). Its closest phylogenetic species is C. reesii collected from air in Australia (Tan et al 2018). Morphologically, conidia of C. curculiginis were larger than those of C. reesii, which were (28-) 31-35 (−39) × (10-) 12-13 (−14) μm in size (Tan et al 2018).…”

mentioning

confidence: 99%

“…Its closest phylogenetic species is C. reesii collected from air in Australia (Tan et al 2018). Morphologically, conidia of C. curculiginis were larger than those of C. reesii, which were (28-) 31-35 (−39) × (10-) 12-13 (−14) μm in size (Tan et al 2018). Conidia of C. curculiginis were similar to C. oryzae (24-40 × 12-22 μm) and C. tuberculata (23-52 × 13-20 μm) in size (Sivanesan 1987), but it was different from C. oryzae in having a thick middle septum of conidia and distinct from C. tuberculata without verruculose ornamented cell walls (Zhang and Sun 2010).…”

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confidence: 99%

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Curvularia curculiginis causes leaf spot and blight on Curculigo capitulata in China

Liu

Zha

Huang

et al. 2019

Australasian Plant Dis. Notes

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Leaf spot and blight on Curculigo capitulata was found in Fair Lake Botanical Garden, Shenzhen, Guangdong, China in 2018. Curvularia curculiginis, identified by morphology, was associated with the symptoms. Molecular barcodes from the internal transcribed spacer region of rDNA (ITS), and partial fragments of glyceraldehyde-3-phosphate dehydrogenase (gapdh) and translation elongation factor 1-α (tef1) genes were provided. Pathogenicity tests showed for the first time that C. curculiginis was pathogenic on leaves of its host. Keywords Amaryllidaceae. Curvularia. Morphology. Phylogenetic analysis. Pathogenicity C u rc u l i g o c a p i t u l a t a , b e l o n g i n g t o t h e f a m i l y Amaryllidaceae, has a long history of medical use in China and India (Kirtikar and Basu 1935; Nie et al. 2013). Curvularia curculiginis, Pseudocercospora curculiginis and Puccinia curculiginis were associated with Curculigo capitulata according to U.S. National Fungus Collections F u n g u s-H o s t D a t a b a s e (h t t p s : / / n t. a r s-g r i n. g o v / fungaldatabases/fungushost/fungushost.cfm) and previous publications (Arthur and Cummins 1936; Guo and Liu 1992; Zhang and Zhang 2003). Among them, C. curculiginis was described as a new species based on morphology by Zhang and Zhang (2003). The species was collected from living leaves of Curculigo capitulata, in Nanning city, Guangxi province, China. However, there is no mention about its pathogenicity (Zhang and Zhang 2003; Zhang and Sun 2010). In August 2018, leaf spot and blight of Curculigo capitulata was observed in Shenzhen Fair Lake Botanical Garden, Shenzhen city, Guangdong province, China. Many small to large, round or irregular brown necrotic spots surrounded with chlorotic halos occurred throughout the

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“…Botryosphaeriaceae21,22 , Colletotrichum23,24 , Curvularia1,25 , Diaporthe26,27 ).The Queensland Plant Pathology Herbarium holds authoritatively identified specimens of most of the known plant pathogenic fungi in Queensland. The Office of the Chief Scientist has recognised BRIP as a State Significant Collection.…”

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confidence: 99%

Volume 40 Number 3

2019

Microbiol. Aust.

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While reasonable effort has been made to ensure the accuracy of the content, the Australian Society for Microbiology, CSIRO, and CSIRO Publishing accept no responsibility for any loss or damage from the direct or indirect use of or reliance on the content. The opinions expressed in articles, letters, and advertisements in Microbiology Australia are not necessarily those of the Australian Society for Microbiology, the Editorial Board, CSIRO, and CSIRO Publishing. Cover image: Background image: National Animal Serum Bank straws at-80°C (courtesy of CSIRO AAHL); inset photos: storage of cultures (courtesy of Westerdijk Fungal Biodiversity Institute).

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Cryptic species of Curvularia in the culture collection of the Queensland Plant Pathology Herbarium

Cited by 40 publications

References 17 publications

Diseases of Cymbopogon citratus (Poaceae) in China: Curvularia nanningensis sp. nov.

Diseases of Cymbopogon citratus (Poaceae) in China: Curvularia nanningensis sp. nov.

Curvularia curculiginis causes leaf spot and blight on Curculigo capitulata in China

Volume 40 Number 3

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