Plant diseases caused by fungi in the Philippines

Balendres, Mark Angelo

doi:10.1016/b978-0-323-99489-7.00014-7

Cited by 5 publications

(3 citation statements)

References 43 publications

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“…With the help of DNA barcoding, the interference of morphological variation on species identification can be effectively avoided (Chase & Fay, 2009; Hebert et al., 2003). rDNA ITS is one of the most commonly used barcodes for identifying pathogenic fungi (Balendres, 2020). In our study, two DNA barcodes, ITS and RPB2 , were used to identify B .…”

Section: Discussionmentioning

confidence: 99%

“…A combination of G3PDH , HSP60 and RPB2 sequences have been recommended for the molecular taxonomy of the Botrytis genus (Garfinkel, 2021). In our study, combined with morphological identification, two DNA fragments (rDNA internal transcribed spacer [ITS] and RPB2 ) commonly used in the taxonomy of plant‐pathogenic fungi (Balendres, 2020) were selected for the molecular identification of collected isolates.…”

Section: Introductionmentioning

confidence: 99%

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Phenotype and genotype characterization of Botrytis cinerea isolates from cut roses in Yunnan, China

Yuan,

Han,

et al. 2023

Plant Pathology

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Botrytis cinerea is considered to be the second most destructive fungal pathogen worldwide, causing severe pre‐ and postharvest losses in cut roses. However, to date, no systematic research on its characteristics in cut roses has been reported. In our study, a total of 100 isolates from cut roses from Yunnan, China, were analysed. A combination of morphological characteristics and phylogenetic analysis of RPB2 revealed that 100 isolates were of the species B. cinerea. These isolates were pathogenic on unwounded detached rose petals. Pathogenicity was evaluated according to the size of petal spots and categorized into grades 0–5, from weak to strong. The inhibition rate varied greatly following the addition of procymidone (21.9%–100%) and cyprodinil (25.0%–92.3%). Analysis of Bc‐hch sequences revealed all isolates belong to phylogenetic Group II. According to the presence or absence of transposable elements, 87, 5, 4 and 4 isolates were identified as transposa, vacuma, Boty‐only and Flipper‐only types, respectively. Detection of mating type indicated that all isolates were heterothallic with 45% belonging to MAT1‐1 and 55% to MAT1‐2. Isolates were divided into four subpopulations when analysing single‐nucleotide polymorphisms at the genomic level, with a significant difference in pathogenicity between subpopulations 1 and 4. The evolutionary tree indicated that isolates AN‐02, AN‐22 and SM‐C18 were clustered in the root, suggesting an earlier evolutionary time than other isolates; moreover, they all exhibited low pathogenicity (grade 1). This systematic study of the characteristics of B. cinerea will provide significant support for grey mould control and further research.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Phenotype and genotype characterization of Botrytis cinerea isolates from cut roses in Yunnan, China

Yuan,

Han,

et al. 2023

Plant Pathology

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“…Philippines is considered the 10th most eggplant‐producing country worldwide amounting to 6 Mm tons (1986–2020) (Food and Agriculture Organization of the United Nations, 2022), eggplant production in the country is still increasingly challenged by production constraints such as diseases (Balendres, 2023) brought by various existing and emerging pathogens. In November 2021, leaf blights of eggplant were observed from an eggplant field with an approximate disease incidence of 10–30% in Cavite, Philippines (Figure 1).…”

Section: Figurementioning

confidence: 99%

Diaporthe melongenae sp. nov, a new fungal species causing leaf blight in eggplant

Aumentado,

Balendres

2023

Journal of Phytopathology

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Eggplant is a vegetable crop of the Solanaceae family. In November 2021, leaf blights of eggplant were observed from an eggplant field with an approximate disease incidence of 10%–30% in Cavite, Philippines. The infected leaves had typical symptoms of Phomopsis blight disease. Two fungal isolates were obtained, and morphological characteristics resemble those of a Diaporthe species. Based on the combined multi‐gene phylogenetic analysis, Diaporthe melongenae sp. nov. formed a separate clade from closely related species: D. guangdongensis, D. melonis and D. moriniae with high bootstrap support values of 99/1.0 ML/PP. Moreover, the morphological characteristics of D. melongenae have differences from the closely related species. D. melongenae differs by having a slightly smaller average alpha conidial size than D. guangdongensis and absence of beta conidia. Diaporthe melonis is distinct from D. melongenae by having slightly constricted middle alpha conidia. Together, based on morphology, multi‐locus phylogeny, GCPSRA and ecology (lifestyle, host and pathogenicity) herein we introduce D. melongenae as a novel species. Furthermore, this study presented the current phylogenetic tree of D. sojae species complex based on accepted Diaporthe species.

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Plant pathogenic Paramyrothecium species: distribution, biology, epidemiology and disease management

Aumentado,

Seco,

Corbita

et al. 2024

Eur J Plant Pathol

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Plant diseases caused by fungi in the Philippines

Cited by 5 publications

References 43 publications

Phenotype and genotype characterization of Botrytis cinerea isolates from cut roses in Yunnan, China

Phenotype and genotype characterization of Botrytis cinerea isolates from cut roses in Yunnan, China

Diaporthe melongenae sp. nov, a new fungal species causing leaf blight in eggplant

Plant pathogenic Paramyrothecium species: distribution, biology, epidemiology and disease management

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