Two new species of Stemphylium from Northwest China

Wang, Yong; Fu, Hongbo; O’Neill, Nichole R.; Zhang, Xiuguo

doi:10.1007/s11557-009-0600-x

Cited by 9 publications

(6 citation statements)

References 9 publications

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“…(2009) S. herbarum Broadly ovoid or broadly ellipsoid, sometimes inequilateral35–45 × 20–27ND6–71–3Conspicuously and densely verrucoseSimmons (1985) S. mali Oblong18–22 × 13–161.3–1.61–33–5Conspicuoulsy punctateWang et al. (2009)Subspherical14–16.5 (diam)ND1(–3)2–4Conspicuoulsy punctateWang et al. (2009) S. sedicola Broadly ellipsoid or oblong30–35 × 18–20ND2–31–3Smooth or usually punctateSimmons (2001) S. tomatonis Oblong, broadly ellipsoid (or subglobose)46–48 × 13–162.4–3 (or 1–1.5)4–71–2PunctulateSimmons (2001) S. vesicarium Oblong or broadly oval, sometimes inequilateral25–42(–48) × 12–221.5–2.71–5(–6)1–2(–3)Conspicuously and densely verrucoseSimmons (1969)1

ND: not determined.

…”

Section: Resultsmentioning

confidence: 99%

“…Five synonymised species under S. lycopersici were described based on morphology alone. Stemphylium oblongum, S. plantaginis, S. pruni, S. pyrina and S. sophorae were described as new species from China ( Wang and Zhang, 2006 , Wang et al., 2009 , Wang and Zhang, 2009 ), with some even appearing in the same manuscript. However, the broad conidial size range (21–60 × 12–24 μm) and described shape of conidia (ellipsoidal, ovoid, short cylindrical or shortly obclavate) of S. lycopersici by Yamamoto (1960) , results in the fact that all described species fit the concept of S. lycopersici .…”

Section: Resultsmentioning

confidence: 99%

“…(2010) S. cremathodii Oblong to oblong-ellipsoid 18–31 × 9–19 1.5–2.6 1–3 0–3 Micromaculate Pei et al. (2009) S. herbarum Broadly ovoid or broadly ellipsoid, sometimes inequilateral 35–45 × 20–27 ND 6–7 1–3 Conspicuously and densely verrucose Simmons (1985) S. mali Oblong 18–22 × 13–16 1.3–1.6 1–3 3–5 Conspicuoulsy punctate Wang et al. (2009) Subspherical 14–16.5 (diam) ND 1(–3) 2–4 Conspicuoulsy punctate Wang et al.…”

Section: Resultsmentioning

confidence: 99%

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Stemphylium revisited

Woudenberg¹,

Hanse²,

Leeuwen³

et al. 2017

Studies in Mycology

101

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In 2007 a new Stemphylium leaf spot disease of Beta vulgaris (sugar beet) spread through the Netherlands. Attempts to identify this destructive Stemphylium sp. in sugar beet led to a phylogenetic revision of the genus. The name Stemphylium has been recommended for use over that of its sexual morph, Pleospora, which is polyphyletic. Stemphylium forms a well-defined monophyletic genus in the Pleosporaceae, Pleosporales (Dothideomycetes), but lacks an up-to-date phylogeny. To address this issue, the internal transcribed spacer 1 and 2 and intervening 5.8S nr DNA (ITS) of all available Stemphylium and Pleospora isolates from the CBS culture collection of the Westerdijk Institute (N = 418), and from 23 freshly collected isolates obtained from sugar beet and related hosts, were sequenced to construct an overview phylogeny (N = 350). Based on their phylogenetic informativeness, parts of the protein-coding genes calmodulin and glyceraldehyde-3-phosphate dehydrogenase were also sequenced for a subset of isolates (N = 149). This resulted in a multi-gene phylogeny of the genus Stemphylium containing 28 species-clades, of which five were found to represent new species. The majority of the sugar beet isolates, including isolates from the Netherlands, Germany and the UK, clustered together in a species clade for which the name S. beticola was recently proposed. Morphological studies were performed to describe the new species. Twenty-two names were reduced to synonymy, and two new combinations proposed. Three epitypes, one lectotype and two neotypes were also designated in order to create a uniform taxonomy for Stemphylium.

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ND: not determined.

…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Stemphylium revisited

Woudenberg¹,

Hanse²,

Leeuwen³

et al. 2017

Studies in Mycology

101

View full text Add to dashboard Cite

show abstract

“…Stemphylium species are mostly saprophytic growing on dead plant materials, however, S. botryosum, S. solani, S. vesicarium and S. loti have been known as pathogens of agriculturally important crops and stone fruits (Wang et al, 2009). Simmons (1967) established criteria for morphological identification of various Stemphylium spp.…”

Section: Introductionmentioning

confidence: 99%

Alternaria infectoria and Stemphylium herbarum, two new pathogens of pyrethrum (Tanacetum cinerariifolium) in Australia

Moslemi

Ades

Groom

et al. 2017

Australasian Plant Pathol.

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Perithecia at the base of dead flower stems of pyrethrum (Tanacetum cinerariifolium) plants in yield-decline affected fields of northern Tasmania were identified as Alternaria infectoria and Stemphylium herbarum.Identification was based on morphological description of cultures established from single ascospores; and conidiospores; ascospore shape and septation; and multigene phylogenetic analyses using the internal transcribed spacer (ITS) region, translation elongation factor 1-α (EF1), polymerase II second largest subunit (RPB2) and glyceraldehyde 3-phosphate dehydrogenase (GAPDH) genes. Stemphylium herbarum produced necrotic leaf lesions on both sides of the spray inoculated pyrethrum leaves which coalesced to encompass the entire leaf in in vivo and in vitro experiments. Alternaria infectoria produced small necrotic leaf lesions on both sides of the leaves two weeks after inoculation which did not expand and hence, was considered as a minor pathogen of pyrethrum. This is the first report of A. infectoria and S. herbarum as pathogens of pyrethrum in Australia. The role of A. infectoria and S. herbarum in the complex syndrome called pyrethrum yield-decline in northern Tasmania needs to be evaluated.

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“…Recently, 10 new species have been proposed (Deng et al 2014;Pei et al 2011;Wang and Zhang 2006;Wang et al 2009Wang et al , 2010. Many Stemphylium species cause diseases on economically important agricultural crops worldwide.…”

Section: Introductionmentioning

confidence: 99%

Taxonomic re-examination of several Japanese Stemphylium strains based on morphological and molecular phylogenetic analyses

et al. 2015

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Most of the many Stemphylium species on record as plant pathogens in Japan have been identified by morphology. Using molecular phylogenetic analysis of four loci (rDNA-ITS, EF-1a, GPD, and vmaA-vpsA) combined, we re-examined the taxonomy of 31 Stemphylium strains that had been identified morphologically before or after their deposit in the NIAS Genebank, Japan. In the present study, these Japanese strains were separated into three groups (Groups A, C, and E). Sixteen Japanese strains formed a new subgroup (designated Subgroup C2) that contained no type or ex-type strains of existing species. Four of the strains had been identified correctly, whereas the other 27 strains appear to have been misidentified based on our phylogenetic analysis. We examined the conidial morphology of four representative misidentified strains selected from each clade. While the morphological characteristics of a strain isolated from Welsh onion resembles those of the S. vesicarium type, this strain belongs to Subgroup C2 rather than Subgroup C1 and, therefore, could not be identified at the species level. Conversely, three pathogenic strains isolated from aster, asparagus, and Chinese chive were re-identified based on our combined morphological and phylogenetic data. We propose the scientific names of the aster leaf spot pathogen as S. lycopersici, and the asparagus Stemphylium leaf spot and Chinese chive brown leaf blight pathogens as S. herbarum.

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Two new species of Stemphylium from Northwest China

Cited by 9 publications

References 9 publications

Stemphylium revisited

Stemphylium revisited

Alternaria infectoria and Stemphylium herbarum, two new pathogens of pyrethrum (Tanacetum cinerariifolium) in Australia

Taxonomic re-examination of several Japanese Stemphylium strains based on morphological and molecular phylogenetic analyses

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