Two new Pythium species from China based on the morphology and DNA sequence data

Long, Yan-Yan; Ji, Wei; Sun, Xiang; He, Yueqiu; Luo, Ji-Tong; Guo, Liang‐Dong

doi:10.1007/s11557-011-0778-6

Cited by 20 publications

(6 citation statements)

References 32 publications

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“…nodosum by faster growth rate, and presence of double oospores. 10 This study significantly improved our understanding of the oomycetes genera Pythium associated with soybean from China. The two species obtained from this study may potentially be highly valuable.…”

Section: Resultsmentioning

confidence: 82%

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Pythium glomeratum and Py. nodosum, two new records from China

Chen¹,

Yu²,

Zhou³

et al. 2020

JMEN

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Two oomycetes, Pythium glomeratum and Py. nodosum were found in southern China, and they are newly recorded in China. These two species were both isolated from roots of soybean. Py. glomeratum is characterized by absence of zoosporangia and zoospores, and slow growth rate. And Py. nodosum is identified from other Pythium species by its smooth oogonia which are crowded with different antheridial branches making a complicated knot, and aplerotic oospores. Illustrations and descriptions of the two new records are provided based on the materials from China.

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Section: Resultsmentioning

confidence: 82%

“…When no growth was observed, the intervals were reduced from 5 to 2 or 1°C and the culture was returned to room temperature to check the revival of the growth. 10…”

Section: Morphology and Growth Ratementioning

confidence: 99%

Pythium glomeratum and Py. nodosum, two new records from China

Chen¹,

Yu²,

Zhou³

et al. 2020

JMEN

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“…To date, 75 species of Pythium s.l. have been reported in China [6,24,25]. As part of an ongoing study on the diversity of the Pythium s.l.…”

Section: Discussionmentioning

confidence: 99%

Molecular and Morphological Characterization of Two New Species of Globisporangium from Southern China, G. pengfuense and G. tenuihyphum

Chen¹,

Zong²,

Huang³

et al. 2022

Diversity

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Two new species of Globisporangium, G. pengfuense and G. tenuihyphum, that were isolated from soybean in China are described and illustrated based on their morphological characters and molecular evidence. The characteristics of G. pengfuense include globose to sub-globose sporangia that are: catenulate, terminal, occasionally with apical papillae or intercalary, smooth oogonia, mostly monoclinous, occasionally diclinous antheridia, fist-shaped to crook-necked, with straight or curved antheridial cells, and plerotic or nearly plerotic with thin-walled oospores (0.5–1.0 µm). Globisporangium tenuihyphum differs from other species in this genus by its relatively narrow hyphae that are: mostly sub-globose to globose, occasionally ovoid-obpyriform sporangia, smooth oogonia, monoclinous antheridia, subclavate, falcate or semicircular to subcircular antheridial cells, and with aplerotic oospores. Phylogenetically, data from the combined internal transcribed spacer (ITS) and cytochrome c oxidase subunit I (Cox1) sequences support the designation of G. pengfuense and G. tenuihyphum as two distinct species of Globisporangium (Pythium sensu lato clades G and J). In addition, the two new species were compared to closely related Globisporangium species, to delineate their phylogenetic positions and morphological features.

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“…When mycelial growth was observed, purification was carried out by cutting a small piece of medium with mycelia at the edge of a colony, and transferring the cutted part into the new medium plates. 12…”

Section: Isolatesmentioning

confidence: 99%

Two species of Phytopythium (Pythiaceae, Pythiales) new to China

Zheng¹,

Chen²,

Han³

2019

JMEN

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Two oomycetes, Phytopythium mercuriale and Pp. sindhum were found in southern China, and they are newly recorded in China. These two species were both isolated from roots of soybean. Pp. mercuriale is characterized by subglobose sporangia with conspicuous apical papillae, and occasionally forming oogonia. And Pp. sindhum is identified from other Phytopythium species by its globose to sub-globose sporangia with conspicuous apical papillae, large and smooth oogonia, monoclinous or diclinous antheridia, and plerotic or nearly plerotic and thick-walled oospores. Illustrations and descriptions of the two new records are provided based on the materials from China.

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Two new Pythium species from China based on the morphology and DNA sequence data

Cited by 20 publications

References 32 publications

Pythium glomeratum and Py. nodosum, two new records from China

Pythium glomeratum and Py. nodosum, two new records from China

Molecular and Morphological Characterization of Two New Species of Globisporangium from Southern China, G. pengfuense and G. tenuihyphum

Two species of Phytopythium (Pythiaceae, Pythiales) new to China

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