Characterization and pathogenicity of Fusarium species associated with leaf spot of mango (Mangifera indica L.)

Omar, Nurul Husna; Mohd, Masratul Hawa; Nor, Nik Mohd Izham Mohamed; Zakaria, Latiffah

doi:10.1016/j.micpath.2017.12.026

Cited by 21 publications

(13 citation statements)

References 12 publications

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“…The data were analysed by Microsoft Excel and SPSS 20.0 software. A one‐way ANOVA was used to perform a significant analysis of the difference in pathogenicity at the p = 0.05 level (Omar, Mohd, Nor, & Zakaria, ).…”

Section: Methodsmentioning

confidence: 99%

New leaf and fruit disease of Juglans regia caused by Juglanconis juglandina in Xinjiang, China

Zhao

et al. 2019

Forest Pathology

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Juglans regia L. is an important and scarce natural resource that grows in the part of the western Tianshan Mountains and the Pamir Alai Mountains in Central Asia. They only distribute in Gongliu County, Yili, Xinjiang Uygur Autonomous Region in China. However, the healthy growth of J. regia was seriously affected by a fungal disease affecting leaves, branches and fruit in 2016. Sixty isolates were obtained from diseased branches, leaves and fruit collected. The pathogenicity of the isolates was confirmed by inoculating shoots and fruit collected from healthy J. regia in Gongliu County and by inoculating the leaves of J. regia seedlings. The pathogen was re‐isolated from all inoculated shoots, leaves and fruits, thereby fulfilling Koch's postulates. Furthermore, isolates from leaves were able to infect fruit and shoots and vice versa. The isolate 1429‐1 was more pathogenic to the branches than HG and HY, no significant difference between the other isolates from leaves and fruits. Based on morphological, cultural characteristics and multilocus analyses using the internal transcribed spacer region, the RNA polymerase II subunit 2 gene, the calmodulin gene, the guanine nucleotide‐binding protein subunit beta gene, the translation elongation factor 1‐alpha gene and the β‐tubulin gene sequences, the fungus was identified as Juglanconis juglandina. Although J. juglandina has been reported previously as the causal agent of stem disease, this is the first description of J. juglandina as the causal agent of a leaf and fruit disease of J. regia.

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Section: Methodsmentioning

confidence: 99%

New leaf and fruit disease of Juglans regia caused by Juglanconis juglandina in Xinjiang, China

Zhao

et al. 2019

Forest Pathology

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“…The data were analyzed by Microsoft Excel 2010 and SPSS 20.0 software. One-way ANOVA was used to determine significant differences in lesion size of different isolates and assess the pathogenicity of fungal isolates [55]. The treatment means were compared by Tukey's honest significant difference (HSD) test at p = 0.05 [56].…”

Section: Pathogenicity Testsmentioning

confidence: 99%

Morphology, DNA Phylogeny, and Pathogenicity of Wilsonomyces carpophilus Isolate Causing Shot-Hole Disease of Prunus divaricata and Prunus armeniaca in Wild-Fruit Forest of Western Tianshan Mountains, China

Jia

GuiFang³

et al. 2020

Forests

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Prunus divaricata and Prunus armeniaca are important wild fruit trees that grow in part of the Western Tianshan Mountains in Central Asia, and they have been listed as endangered species in China. Shot-hole disease of stone fruits has become a major threat in the wild-fruit forest of the Western Tianshan Mountains. Twenty-five isolates were selected from diseased P. divaricata and P. armeniaca. According to the morphological characteristics of the culture, the 25 isolates were divided into eight morphological groups. Conidia were spindle-shaped, with ovate apical cells and truncated basal cells, with the majority of conidia comprising 3–4 septa, and the conidia had the same shape and color in morphological groups. Based on morphological and cultural characteristics and multilocus analysis using the internal transcribed spacer (ITS) region, partial large subunit (LSU) nuclear ribosomal RNA (nrRNA) gene, and the translation elongation factor 1-alpha (tef1) gene, the fungus was identified as Wilsonomyces carpophilus. The 25 W. carpophilus isolates had high genetic diversity in phylogenetic analysis, and the morphological groups did not correspond to phylogenetic groups. The pathogenicity of all W. carpophilus isolates was confirmed by inoculating healthy P. divaricata and P. armeniaca leaves and fruits. The pathogen was re-isolated from all inoculated tissues, thereby fulfilling Koch’s postulates. There were no significant differences in the pathogenicity of different isolates inoculated on P. armeniaca and P. divaricata leaves (p > 0.05). On fruit, G053 7m3 and G052 5m2 showed significant differences in inoculation on P. armeniaca, and G010 5m2 showed extremely significant differences with G004 7m2 and G004 5m2 on P. divaricata (p < 0.05). This is the first report on shot-hole disease of P. armeniaca (wild apricot) leaves and P. divaricata induced by W. carpophilus in China.

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“…Phytopathogenic Fusarium fungi can cause leaf spot diseases in various plants, from pteridophytes (Mali et al, 2015) to angiosperms, including tobaccos (Li et al, 2017), tomatoes (Gao et al, 2016), mangos (Omar et al, 2018), screw pines (Dehghan-Niri and Rahimian, 2016), lettuces (Garibaldi et al, 2015), pineapples (Ibrahim et al, 2017), onions (Parkunan and Ji, 2013), oleanders (Mirhosseini et al, 2014) and palms (Ashfaq et al, 2017). The yellow leaf spot disease caused by Fusarium species can only be found in orchids (Han et al, 2015;Ichikawa and Aoki, 2000;Leslie and Summerell, 2006).…”

Section: Introductionmentioning

confidence: 99%

The First Report of Fusarium sacchari Causing Yellow Leaf Spot Disease on Rhynchostylis gigantea Orchids in Thailand

Dekham

Kanchanawatee

2020

American Journal of Agricultural and Biological Sciences

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Yellow leaf spot disease was observed on Rhynchostylis gigantea orchids on an orchid farm in the Nonthaburi province of Thailand. Symptoms started with yellowish patches lacking definitive borders on the leaves of the orchids. The patches slowly expanded and merged, creating larger patches; a brown spot or black necrotic area then emerged at the center of some of the patches. R. gigantea leaves exhibiting these symptoms were used as the source for isolation studies. Based on the morphological characteristics of the fungal isolate (colony appearance, macroconidia, microconidia, conidiophore and chlamydospore structures), phylogenetic analysis of translation elongation factor-1α sequence and fulfillment of Koch's postulates, the causative pathogen was identified as Fusarium sacchari. To our knowledge, this study is the first to report F. sacchari as a pathogen of R. gigantea.

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Characterization and pathogenicity of Fusarium species associated with leaf spot of mango (Mangifera indica L.)

Cited by 21 publications

References 12 publications

New leaf and fruit disease of Juglans regia caused by Juglanconis juglandina in Xinjiang, China

New leaf and fruit disease of Juglans regia caused by Juglanconis juglandina in Xinjiang, China

Morphology, DNA Phylogeny, and Pathogenicity of Wilsonomyces carpophilus Isolate Causing Shot-Hole Disease of Prunus divaricata and Prunus armeniaca in Wild-Fruit Forest of Western Tianshan Mountains, China

The First Report of Fusarium sacchari Causing Yellow Leaf Spot Disease on Rhynchostylis gigantea Orchids in Thailand

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