Morphological and molecular characterization of Curvularia lunata pathogenic to andropogon grass

Santos, Patrícia Resplandes Rocha dos; Leão, Evelynne Urzêdo; Aguiar, Raimundo Wagner de Souza; Melo, Maruzanete Pereira de; Santos, Gil Rodrigues dos

doi:10.1590/1678-4499.2017258

Cited by 20 publications

(16 citation statements)

References 15 publications

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“…Chutia et al (2006) discovered that a leaf blight of Cymbopogon winterianus Jowitt is caused by Curvularia spp., resulting in a dramatic change in oil yield and its constituents. Recently, Santos et al (2018) characterised the morphological and molecular diversity of the isolates of C. lunata, associated with Andropogon Linn. seeds.…”

Section: Introductionmentioning

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: Introductionmentioning

confidence: 99%

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

Zhang¹,

Yang²,

Cheng³

et al. 2020

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“…The genera Curvularia [ 54 ], Cladosporium [ 55 ], and Trichoderma [ 56 ] contain plant pathogen species but also others that benefit the growth of many plants. They are ubiquitous with representatives that are considered “indoor fungi”, and well-known for producing different enzymes [ 57 ].…”

Section: Discussionmentioning

confidence: 99%

Fungal Screening for Potential PET Depolymerization

et al. 2023

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Approximately 400 billion PET bottles are produced annually in the world, of which from 8 to 9 million tons are discarded in oceans. This requires developing strategies to urgently recycle them. PET recycling can be carried out using the microbial hydrolysis of polymers when monomers and oligomers are released. Exploring the metabolic activity of fungi is an environmentally friendly way to treat harmful polymeric waste and obtain the production of monomers. The present study addressed: (i) the investigation of potential of strains with the potential for the depolymerization of PET bottles from different manufacturers (crystallinity of 35.5 and 10.4%); (ii) the search for a culture medium that favors the depolymerization process; and (iii) gaining more knowledge on fungal enzymes that can be applied to PET recycling. Four strains (from 100 fungal strains) were found as promising for conversion into terephthalic acid from PET nanoparticles (npPET): Curvularia trifolii CBMAI 2111, Trichoderma sp. CBMAI 2071, Trichoderma atroviride CBMAI 2073, and Cladosporium cladosporioides CBMAI 2075. The fermentation assays in the presence of PET led to the release of terephthalic acid in concentrations above 12 ppm. Biodegradation was also confirmed using mass variation analyses (reducing mass), scanning electron microscopy (SEM) that showed evidence of material roughness, FTIR analysis that showed band modification, enzymatic activities detected for lipase, and esterase and cutinase, confirmed by monomers/oligomers quantification using high performance liquid chromatography (HPLC-UV). Based on the microbial strains PET depolymerization, the results are promising for the exploration of the selected microbial strain.

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“…Para avaliação a caracterização dos gêneros fúngicos, critérios morfológicos, foram adotados conforme literaturas especializadas (NITHIYAA et al, 2012;HAFIZI;SYM, 2013;EHGARTNER et al, 2017;NAYYAR et al, 2017;SANTOS et al, 2018). Os efeitos das concentrações sobre percentual de sementes infestadas foram realizados conforme a fórmula descrita por Sangoi et al (2000).…”

Section: Methodsunclassified

Qualidade Fisiológica E Sanitária Em Sementes De Leucaena Leucocephala (Lam.) De Wit. Tratadas Com Óleo Essencial De Rosmarinus Officinalis L. / Physiological and Sanitary Quality Leucaena Leucocephala (Lam.) From Wit. Seeds Treated With Essential Oil Rosmarinus Officinalis L.

Ferreira

Demartelaere²,

Preston

et al. 2020

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Morphological and molecular characterization of Curvularia lunata pathogenic to andropogon grass

Cited by 20 publications

References 15 publications

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

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

Fungal Screening for Potential PET Depolymerization

Qualidade Fisiológica E Sanitária Em Sementes De Leucaena Leucocephala (Lam.) De Wit. Tratadas Com Óleo Essencial De Rosmarinus Officinalis L. / Physiological and Sanitary Quality Leucaena Leucocephala (Lam.) From Wit. Seeds Treated With Essential Oil Rosmarinus Officinalis L.

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