Four Unrecorded <i>Aspergillus</i> Species from the Rhizosphere Soil in South Korea

Lee, Junwon; Kim, Sung Hyun; You, Young-Hyun; Lim, Young Woon; Park, Myung Soo

doi:10.1080/12298093.2021.1944461

Cited by 5 publications

(3 citation statements)

References 63 publications

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“…Keragaman mikroba di rhizosfer sangat banyak jumlahnya, termasuk adanya mikroba patogen dan mikroba non-patogen, contoh mikroorganisme yang dapat ditemukan di rhizosfer adalah PGPR(Plant Growth Promiting Rhizobacteria) dan jamur mikoriza AMF (Abuscular Michorizal Fungi) . Keragaman mikrorganisme pada rhizosfer berasal dari golongan PGPR seperti bakteri Burkholderia yang berasal dari rhizosfer tanaman jagung (Sbai Idrissi et al, 2021), AMF (Jabborova et al, 2021), (Abeer , et., al., 2021) dan jamur tanah lainnya seperti Trichoderma (Hernández et al, 2021), (Hammad et al, 2021), (Ofir Degani, Soliman Khatib, Paz Becher, 2021) dan Aspergillus (Lee et al, 2021).…”

Section: Pendahuluanunclassified

Phytohormones (iaa and ga3) produced by rhizosphere mushrooms in shallot (allium ascolonicum l). As a biostimulant

2023

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Plants that are symbiotic with microbes will produce phytohormones optimally so that it will trigger the level of tolerance of plants to abiotic and biotic stress including plant pathogens, so it is necessary to explore the rhizosphere mushroom of onion plants in Enrekang regency and test the production of phytohormones (IAA and GA3) to see its potential as biostimulan in Shallot. This study used soil samples of rhizosphere soil of shallot taken at the shallot farming center in Enrekang regency, isolation and testing production of hormone was conducted in the laboratory of plant diseases of Hasanuddin University. The results achieved there are 20 isolates with the production of IAA hormones ranging from 0.125-3,609 mg / L, the largest IAA production is found in isolates number 3 and 7, while the production of GA3 hormones ranges from 0.991-3,440 mg / L, GA3 production is released in isolate Number 8, 17 and 19. This shows the great potential for rhizosphere mushrooms to become biostimulan.

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Section: Pendahuluanunclassified

Phytohormones (iaa and ga3) produced by rhizosphere mushrooms in shallot (allium ascolonicum l). As a biostimulant

2023

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“…It can be found in air, soil, vegetation, and indoor spaces (Samson et al, 2014;Tsang et al, 2018). Aspergillus species are important in the fields of economics, biotechnology, and medicine due to their ability to produce enzymes, organic acids, antibiotics, and other bioactive metabolites (Lee et al, 2021). However, some species of fungi can have negative effects, such as causing food spoilage, producing mycotoxins, and acting as causative agents of mycoses (Kocsubé et al, 2016;Mageswari et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

First reported aflatoxigenic isolates of Aspergillus flavus in agroforestry systems in Buenaventura, Valle del Cauca-Colombia

Arboleda-Riascos,

Velásquez-Ortiz,

Cossio-Vásquez

et al. 2024

Preprint

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Aspergillus flavus is a common fungus in agricultural and agroforestry systems, and its presence can pose several risks, especially in agroforestry systems. Aflatoxin contamination of staple crops is a major problem in the Pacific region of Colombia. This study aimed to analyze the morphological, molecular and aflatoxigenic characteristics of Aspergillus species found in agroforestry systems in the Buenaventura region of Colombia. The study employed first- and second-degree logarithmic models to analyse fungal growth and its rate of variation over time. Genomic DNA was extracted from individual spore cultures sown on Potato Dextrose Agar (PDA). The DNA was amplified by polymerase chain reaction (PCR) using a reaction mixture consisting of 12.5 µL of PCR Master Mix 2X, 1 µL of each primer and 2 µL of genomic DNA. PCR was used to detect aflatoxins by amplifying the AflS gene using AflS-F and AflS-R. Quantitative analysis was performed using the direct competitive ELISA (CD-ELISA) method. This study presents the initial sequences of Aspergillus flavus linked to agroforestry systems in Buenaventura, Valle del Cauca-Colombia. The sequences for ITS and BenA were deposited in the NCBI GenBank database under the codes PP379903/PP379904 and PP565787/PP565788, respectively. Isolates PP565787 and PP565788 were identified as aflatoxigenic with concentrations of 5.7 ppb and 3.8 ppb, respectively. This article proposes the use of non-toxigenic strains of A flavus and other beneficial microorganisms as biocontrollers through competition, as well as the use of agricultural lime as a sustainable option in agroforestry systems in regions with limited technology.

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“…Species belonging to this genus are ecologically abundant and can be found in the air, soil, vegetation as well as indoor environments [ 1 , 2 ]. Several of the Aspergillus species are economically, biotechnologically, and medically important due to their ability to produce enzymes, organic acids, antibiotics, and other bioactive metabolites [ 3 ]. Nevertheless, some of the species are also frequently reported for their detrimental effects such as food spoilage, mycotoxin production, and as causal agents of mycoses [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Re-Identification of Aspergillus Subgenus Circumdati Strains in Korea Led to the Discovery of Three Unrecorded Species

Mageswari,

Choi,

Thao

et al. 2023

Mycobiology

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Aspergillus is one of the largest and diverse genera of fungi with huge economical, biotechnological, and social significance. Taxonomically, Aspergillus is divided into six subgenera comprising 27 sections. In this study, 235 strains of Aspergillus subgenus Circumdati (section: Candidi , Circumdati , Flavi , Flavipedes , Nigri, and Terrei ) preserved at the Korean Agricultural Culture Collection (KACC) were analyzed and re-identified using a combined dataset of partial β-tubulin ( BenA ), Calmodulin ( CaM ) gene sequences and morphological data. We confirmed nineteen species to be priorly reported in Korea ( A. neotritici , A. terreus , A. floccosus , A. allahabadii , A. steynii , A. westerdijkiae , A. ochraceus , A. ostianus , A. sclerotiorum , A. luchuensis , A. tubingensis , A. niger , A. welwitschiae , A. japonicus , A. nomius , A. tamarii , A. parasiticus , A. flavi , and A. oryzae ). Among the studied strains, three species ( A. subalbidus , A. iizukae , and A. uvarum ), previously unreported or not officially documented, were discovered in Korea, to the best of our knowledge. We have given a detailed description of the characteristic features of the three species, which remain uncharted in Korea.

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Four Unrecorded Aspergillus Species from the Rhizosphere Soil in South Korea

Cited by 5 publications

References 63 publications

Phytohormones (iaa and ga3) produced by rhizosphere mushrooms in shallot (allium ascolonicum l). As a biostimulant

Phytohormones (iaa and ga3) produced by rhizosphere mushrooms in shallot (allium ascolonicum l). As a biostimulant

First reported aflatoxigenic isolates of Aspergillus flavus in agroforestry systems in Buenaventura, Valle del Cauca-Colombia

Re-Identification of Aspergillus Subgenus Circumdati Strains in Korea Led to the Discovery of Three Unrecorded Species

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