Conventional Identification of Pathogenic Fungi Isolated from Fresh Water Aquarium Fish (O. niloticus and C. gariepinus) Combined with Molecular Identification of Saprolegnia parasitica in Egypt

Younis, Gamal; Esawy, Abo El Kheir M.; Elkenany, Rasha; Deen, Muhammad M. Shams El

doi:10.17582/journal.aavs/2020/8.1.77.88

Cited by 4 publications

(16 citation statements)

References 19 publications

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“…In addition, Russo and Yanong (2010) reported signs of aflatoxicosis in fish which included liver tumours that appeared as pale yellow lesions. Likely, Iqbal and Sajjad (2013) and Younis et al (2020) revealed that Aspergillus infection results in mortality and economic losses in koi fish and Nile catfish. In addition, Parveen and Bari (2018) described the clinical signs in Clarius batrachus caused by Aspergillus that showed haemorrhagic lesions on the skin, excess mucus secretions and damaged gills.…”

Section: Discussionmentioning

confidence: 98%

“…In addition, Russo and Yanong (2010) reported signs of aflatoxicosis in fish which included liver tumours that appeared as pale yellow lesions. Likely, Iqbal and Sajjad (2013) and Younis et al (2020) revealed that Aspergillus infection results in mortality and economic losses in koi fish and Nile catfish. In addition, The major P/M finding in experimentally infected fish with A.…”

Section: Discussionmentioning

confidence: 98%

“…Our results were supported by many previous studies; Tartor et al (2018) isolated C . parapsilosis from kidneys of African catfish; and Younis et al (2020) isolated A . flavus and Cladosporium from the liver of African catfish.…”

Section: Discussionmentioning

confidence: 99%

“…Candida spp. are pathogenic yeasts that infect Zebrafish, African catfish and Nile tilapia resulting in skin ulcers and higher mortalities (Chao et al, 2010; Eissa, Tharwat & Zaki, 2013; Tartor et al, 2018; Younis et al, 2020). Cladosporium spp.…”

Section: Introductionmentioning

confidence: 99%

“…Cladosporium spp. induces mycosis in Lutjanus campechanus , Clownfish, Rainbow trout and Nile catfish (Blaylock, Overstreet & Klich, 2001; Fadaeifard;, Raissay, Bahrami, Rahimi & Najafipoor, 2011; Silphaduang, Hatai, Wada & Noga, 2000; Younis et al, 2020). In aquaculture, assessment of oxidative stress biomarkers is a vital indicator in response to infection or pollution (Abdelkhalek; et al, 2021); Abdel‐Daim, Dawood, Aleya & Saad, 2020; Abdel‐Daim, Dawood, Elbadawy, Aleya & Alkahtani, 2020.…”

Section: Introductionmentioning

confidence: 99%

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Detection, diagnosis, Koch’s postulate, hepatorenal and antioxidant indicators for some systemic pathogenic fungi invading the liver and kidneys of African catfish ( Clarias gariepinus ) in Egypt with a histopathological approach

Mahboub

Nada

Abdel‐Ghany

et al. 2022

Aquaculture Research

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Recently, systemic fungal infections have emerged as significant causes of fish morbidity and mortality. Hence, the current study investigates the occurrence of some pathogenic systemic fungi inducing severe lesions in the liver and kidneys of African catfish. Two hundred diseased African catfish were collected from private fish farms in Egypt, and only 120 fish were infected with 212 different fungal isolates at a rate of 60%. The seasonal survey revealed isolation of 72 isolates of yeast (Candida albicans) and 140 isolates of moulds including non‐pigmented moulds, Aspergillus ochraceous and Aspergillus flavus, as well as pigmented mould (Cladosporium herbarum). The isolated fungi induced characteristic post‐mortem lesions. To date, this is the first report for isolation of C. herbarum and C. parapsilosis from Nile catfish liver and kidneys. Various techniques were performed to identify the fungi including gross observation, microscopic examination of tissue squashes, in vitro culture and histopathology. Koch's postulate was fulfilled to confirm the fungal pathogenicity. The challenged fungi altered the hepatorenal indicators (ALP, AST, ALT, urea and creatinine) and oxidative stress biomarkers (MDA, CAT and SOD). The results indicate the virulence of the isolated fungi, and future studies are needed for treatment trials.

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Section: Discussionmentioning

confidence: 98%

“…In addition, Russo and Yanong (2010) reported signs of aflatoxicosis in fish which included liver tumours that appeared as pale yellow lesions. Likely, Iqbal and Sajjad (2013) and Younis et al (2020) revealed that Aspergillus infection results in mortality and economic losses in koi fish and Nile catfish. In addition, The major P/M finding in experimentally infected fish with A.…”

Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Detection, diagnosis, Koch’s postulate, hepatorenal and antioxidant indicators for some systemic pathogenic fungi invading the liver and kidneys of African catfish ( Clarias gariepinus ) in Egypt with a histopathological approach

Mahboub

Nada

Abdel‐Ghany

et al. 2022

Aquaculture Research

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show abstract

Diseases in Aquaculture

Elabd,

Othman,

Mahboub

2024

Essentials of Aquaculture Practices

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Isolation and Identification of Aspergillus sp. in Tilapia (Oreochromis sp.) Sold for Consumption in Bogor

Arumugam,

Budiono,

Widyananta

2024

J. Med. Vet.

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This study investigated the prevalence of Aspergillus sp. in tilapia sold for consumption at Pasarean Village in Bogor District. A total of 50 fish were sampled for further investigation. The clinical signs of fish were eroded fins, gills, haemorrhages, and wounds. The presence of pathogenic fungi was confirmed through fungal isolation from the skin, gills, and cloaca and subsequent culturing on potato dextrose agar. Macroscopic and microscopic observations determined Aspergillus sp. The results showed that four Aspergillus species were identified i.e., A. terreus (2%), A. flavus (4%), A. fumigatus (42%), and A. niger (4%), with the occurrence of co-infection between A. fumigatus and A. flavus (2%); A. fumigatus and A. terreus (2%); and between A. fumigatus, A. flavus, and A. niger (2%) reported a total prevalence of 58%. Further study is necessary to mitigate the crucial impact of fungal diseases in aquaculture systems, leading to effective prevention and control strategies, thus ensuring the safety and sustainability of aquaculture practices in Indonesia.

show abstract

Conventional Identification of Pathogenic Fungi Isolated from Fresh Water Aquarium Fish (O. niloticus and C. gariepinus) Combined with Molecular Identification of Saprolegnia parasitica in Egypt

Cited by 4 publications

References 19 publications

Detection, diagnosis, Koch’s postulate, hepatorenal and antioxidant indicators for some systemic pathogenic fungi invading the liver and kidneys of African catfish ( Clarias gariepinus ) in Egypt with a histopathological approach

Detection, diagnosis, Koch’s postulate, hepatorenal and antioxidant indicators for some systemic pathogenic fungi invading the liver and kidneys of African catfish ( Clarias gariepinus ) in Egypt with a histopathological approach

Diseases in Aquaculture

Isolation and Identification of Aspergillus sp. in Tilapia (Oreochromis sp.) Sold for Consumption in Bogor

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