Rust Fungi on Medicinal Plants in Guizhou Province with Descriptions of Three New Species

Wu, Qianzhen; He, Minghui; Liu, Tiezhi; Hu, Hongmin; Liu, Lili; Zhao, Peng; Li, Qirui

doi:10.3390/jof9090953

Cited by 3 publications

(2 citation statements)

References 86 publications

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“…Our phylogenetic study supported the notion that N. cedrelae is a rust pathogen affecting Aralia elata in Korea as well as Toona sinensis in Japan and Korea. Although our samples were morphologically similar to Nyssopsora altissima which has been described from Ailanthus altissima in China [20], they exhibited many sequence differences in the ITS regions. As rust diseases pose a significant risk to forestry and agricultural productivity due to their severe impact on crop yield and quality [22,23], understanding their life cycles, especially their alternate hosts, can potentially enhance disease management strategies [3,4].…”

Section: Discussionsupporting

confidence: 47%

Unraveling the Life Cycle of Nyssopsora cedrelae: A Study of Rust Diseases on Aralia elata and Toona sinensis

Lee,

Kakishima,

Park

et al. 2024

JoF

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Rust disease poses a major threat to global agriculture and forestry. It is caused by types of Pucciniales, which often require alternate hosts for their life cycles. Nyssopsora cedrelae was previously identified as a rust pathogen on Toona sinensis in East and Southeast Asia. Although this species had been reported to be autoecious, completing its life cycle solely on T. sinensis, we hypothesized that it has a heteroecious life cycle, requiring an alternate host, since the spermogonial and aecial stages on Aralia elata, a plant native to East Asia, are frequently observed around the same area where N. cedrelae causes rust disease on T. sinensis. Upon collecting rust samples from both A. elata and T. sinensis, we confirmed that the rust species from both tree species exhibited matching internal transcribed spacer (ITS), large subunit (LSU) rDNA, and cytochrome oxidase subunit III (CO3) mtDNA sequences. Through cross-inoculations, we verified that aeciospores from A. elata produced a uredinial stage on T. sinensis. This study is the first report to clarify A. elata as an alternate host for N. cedrelae, thus providing initial evidence that the Nyssopsora species exhibits a heteroecious life cycle.

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Section: Discussionsupporting

confidence: 47%

Unraveling the Life Cycle of Nyssopsora cedrelae: A Study of Rust Diseases on Aralia elata and Toona sinensis

Lee,

Kakishima,

Park

et al. 2024

JoF

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“…In the original publication [1], there were two mistakes in Figure 3 as published. The names of two new species were incorrect.…”

Section: Error In Figurementioning

confidence: 99%

Correction: Wu et al. Rust Fungi on Medicinal Plants in Guizhou Province with Descriptions of Three New Species. J. Fungi 2023, 9, 953

Wu,

He,

Liu

et al. 2023

JoF

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Leaf Rust Pathogens on Hypericum pseudohenryi: Describing Melampsora danbaensis sp. nov. and M. hyperici-pseudohenryi sp. nov. from China

Peng,

Xu,

Tong

et al. 2024

Microb Ecol

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Based on morphological and phylogenetic evidence, two novel species of Melampsora were discovered on Hypericum pseudohenryi in China and have been thoroughly characterized. One of these species, designated as M. danbaensis , exhibits distinct features such as aecia of Uredo -type, typically appearing in gregarious or grouped arrangements, and presenting a shallowly pulvinate structure. Aeciospores exhibit tremendous variations in size, ranging in shape from globose to ellipsoidal and bearing pronounced verrucose texture. Telia resemble crusts one-spore deep, covering nearly the entire abaxial leaf surface, with sessile teliospores reaching sizes of up to 65.8 µm, and exhibiting a clavate to cylindrical shape. Another species, designated as M. hyperici-pseudohenryi , is distinguished by Uredo -type uredinia, which are hypophyllous, scattered or grouped, and interspersed with numerous paraphyses. Its urediniospores tend to be globose, ellipsoidal or obovoid, echinulate, and are accompanied by clavate to capitate paraphyses reaching lengths up to 77.6 µm. Phylogenetically, both species form a novel monophyletic clade within the Melampsora genus, with robust support demonstrated by a high Maximum likelihood bootstrap support (MLBS) value of 100% and a Bayesian posterior probability (BPP) of 1. This study enriches our understanding of the diversity and geographical distribution of Melampsora species that infect Hypericum plants in China.

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Rust Fungi on Medicinal Plants in Guizhou Province with Descriptions of Three New Species

Cited by 3 publications

References 86 publications

Unraveling the Life Cycle of Nyssopsora cedrelae: A Study of Rust Diseases on Aralia elata and Toona sinensis

Unraveling the Life Cycle of Nyssopsora cedrelae: A Study of Rust Diseases on Aralia elata and Toona sinensis

Correction: Wu et al. Rust Fungi on Medicinal Plants in Guizhou Province with Descriptions of Three New Species. J. Fungi 2023, 9, 953

Leaf Rust Pathogens on Hypericum pseudohenryi: Describing Melampsora danbaensis sp. nov. and M. hyperici-pseudohenryi sp. nov. from China

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