Leaf Spot of Tobacco (<i>Nicotiana tabacum</i>) Caused by <i>Curvularia trifolii</i> in Guizhou Province of China

Chen, R. Y.; Zhang, J. H.; Cheng, Jinxiao; Zheng, Chun-Sheng; Li, W. H.; Wang, Y. C.

doi:10.1094/pdis-09-16-1326-pdn

Cited by 5 publications

(2 citation statements)

References 2 publications

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“…Several studies have also described the presence of L. chartarum conidia in indoor air environments where asthma patients reside [14,15]. C. trifolii, a widely distributed, high-temperature pathogen, causing leaf spot on Trifolium alexandrinum (Berseem clover) and leaf blight on Agrostis palustris (creeping bentgrass) [16][17][18]. Moreover, C. trifolii can produce various secondary metabolites in culture, among which, some exhibited excellent anti-inflammatory and antitumor activity [19,20].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Nuclear and Mitochondrial Genomes of Two Tobacco Endophytic Fungi Leptosphaerulina chartarum and Curvularia trifolii and Their Contributions to Phylogenetic Implications in the Pleosporales

Yuan

Cao

Shen

et al. 2020

IJMS

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The symbiont endophytic fungi in tobacco are highly diverse and difficult to classify. Here, we sequenced the genomes of Curvularia trifolii and Leptosphaerulina chartarum isolated from tobacco plants. Finally, 41.68 Mb and 37.95 Mb nuclear genomes were sequenced for C. trifolii and L. chartarum with the scaffold N50, accounting for 638.94 Kb and 284.12 Kb, respectively. Meanwhile, we obtained 68,926 bp and 59,100 bp for their mitochondrial genomes. To more accurately classify C. trifolii and L. chartarum, we extracted seven nuclear genes and 12 mitochondrial genes from these two genomes and their closely related species. The genes were then used for calculation of evolutionary rates and for phylogenetic analysis. Results showed that it was difficult to achieve consistent results using a single gene due to their different evolutionary rates, while the phylogenetic trees obtained by combining datasets showed stable topologies. It is, therefore, more accurate to construct phylogenetic relationships for endophytic fungi based on multi-gene datasets. This study provides new insights into the distribution and characteristics of endophytic fungi in tobacco.

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Section: Introductionmentioning

confidence: 99%

Characterization of Nuclear and Mitochondrial Genomes of Two Tobacco Endophytic Fungi Leptosphaerulina chartarum and Curvularia trifolii and Their Contributions to Phylogenetic Implications in the Pleosporales

Yuan

Cao

Shen

et al. 2020

IJMS

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“…Furthermore, the negative impact of the disease is severe under high temperature, rainfall, and humidity. Curvularia trifolii can cause severe leaf spot disease in numerous plant species, including turf grass, tobacco, and berseem clover [ 5 , 6 , 7 , 8 ]. The disease can spread with rain splashes and can cause yield losses of up to 50–100%.…”

Section: Introductionmentioning

confidence: 99%

Potential of Alpha-(α)-Solanine as a Natural Inhibitor of Fungus Causing Leaf Spot Disease in Strawberry

et al. 2023

Life

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Curvularia trifolii is an important pathogenic fungus that causes leaf spot disease in strawberry and other crops. Increased resistance in pathogenic fungi against chemical fungicides necessitates the search for biological alternatives to control plant fungal diseases. The present study aimed to perform transcriptome and metabolome analysis of C. trifolii fungi. We evaluated the potential of an alkaloid, namely alpha (α)-solanine, to inhibit the growth of Curvularia under in vitro conditions. Furthermore, transcriptomic and metabolomic analysis of treated C. trifolii was performed to identify the differential genes and metabolites. Results revealed that treatment with α-solanine resulted in the poor growth and development of fungal spores. The transcriptome analysis revealed that 1413 genes were differentially expressed (DEGs), among which 340 unigenes were up-regulated, 100 unigenes were down-regulated, and the rest were unaffected in treated samples. Gene ontology analysis revealed that the majority of the genes were related to oxidative stress in the fungus. Additionally, using ultra-high performance liquid chromatography-tandem mass spectrometry, we identified 455 metabolites, among which the majority of metabolites were related to lipid biosynthesis. The high number of genes related to lipid biosynthesis and reactive oxygen species revealed that α-solanine causes oxidative stress in Curvularia, leading to growth inhibition, and can be potentially used as an alternative to chemical fungicides.

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Curvularia trifolii (leaf blight: clover)

2021

CABI Compendium

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Leaf Spot of Tobacco (Nicotiana tabacum) Caused by Curvularia trifolii in Guizhou Province of China

Cited by 5 publications

References 2 publications

Characterization of Nuclear and Mitochondrial Genomes of Two Tobacco Endophytic Fungi Leptosphaerulina chartarum and Curvularia trifolii and Their Contributions to Phylogenetic Implications in the Pleosporales

Characterization of Nuclear and Mitochondrial Genomes of Two Tobacco Endophytic Fungi Leptosphaerulina chartarum and Curvularia trifolii and Their Contributions to Phylogenetic Implications in the Pleosporales

Potential of Alpha-(α)-Solanine as a Natural Inhibitor of Fungus Causing Leaf Spot Disease in Strawberry

Curvularia trifolii (leaf blight: clover)

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