Aureobasidium mangrovei sp. nov., an ascomycetous species recovered from Hara protected forests in the Persian Gulf, Iran

Nasr, Shaghayegh; Mohammadimehr, Mona; Vaghei, Marzieh Geranpayeh; Amoozegar, Mohammad Ali; Fazeli, Seyed Abolhassan Shahzadeh

doi:10.1007/s10482-018-1059-z

Cited by 17 publications

(10 citation statements)

References 28 publications

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“…Mangrove is a shrub/small tree that grows in saline environments. The mangrove Avicennia marina is present in coastal areas of several countries, including Oman, China, Iran, and others (Ghazanfar, 1999; Al-Nadabi & Sulaiman, 2018; Nasr et al, 2018; Tong et al, 2019). Mangrove has been reported to be rich in biological diversity (Dias et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Aspergillus terreus obtained from mangrove exhibits antagonistic activities against Pythium aphanidermatum-induced damping-off of cucumber

Al-Shibli

Dobretsov

Al-Nabhani

et al. 2019

PeerJ

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A study was conducted to investigate the potential of Aspergillus terreus obtained from Avicennia marina mangrove roots in inhibiting Pythium aphanidermatum and damping-off disease of cucumber. Aspergillus terreus exhibited in vitro inhibition of Pythium aphanidermatum growth. Electron microscope examination revealed that the antagonistic fungal isolate resulted in shrinking and groves in Pythium hypha. When Aspergillus terreus culture filtrate was added to Pythium aphanidermatum, it resulted in a significant increase (by 73%) in electrolyte leakage from Pythium hypha compared to the control, as well as significant reduction (by 71%) in oospore production. The Aspergillus terreus culture was also found to produce a cellulase enzyme, which is suggested to be involved in the antagonism against Pythium aphanidermatum. Adding Aspergillus terreus to soil infested with Pythium aphanidermatum significantly reduced percent mortality in cucumber seedlings by 70%. Aspergillus terreus, when applied alone on cucumber seedlings, did not show any suppressive effects on cucumber growth (length and fresh and dry weight). This appears to be the first report of isolation from mangrove of Aspergillus terreus with antagonistic activity against Pythium aphanidermatum-induced damping-off of cucumber. The study indicates that fungal isolates obtained from marine environments may serve as potential biocontrol agents against some plant pathogens.

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Section: Introductionmentioning

confidence: 99%

Aspergillus terreus obtained from mangrove exhibits antagonistic activities against Pythium aphanidermatum-induced damping-off of cucumber

Al-Shibli

Dobretsov

Al-Nabhani

et al. 2019

PeerJ

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“…Fungal structures were transferred to microscope slides and mounted on 85% lactic acid drops. M40Y and M60Y media were prepared as described [15,19]. MEA media containing salt were prepared by adding analytical grade NaCl to the MEA prior to sterilization.…”

Section: Observation Of Morphologymentioning

confidence: 99%

“…In recent years, with the high accessibility of sequencing services and a large amount of available molecular data, the number of novel Aureobasidium species is increasing. Thirteen new species have been proposed, namely, Aureobasidium acericola [10], A. aerium [11], A. castaneae [12], A. iranianum [13], A. leucospermi [14], A. mangrovei [15], A. microtermitis [16], A. mustum [17], A. pini [18], A. thailandense [19], A. tremulum [20], and A. uvarum and A. vineae [17].…”

Section: Introductionmentioning

confidence: 99%

Proposal of Four New Aureobasidium Species for Exopolysaccharide Production

Feng

Wang

et al. 2023

JoF

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In this study, 99 strains of Aureobasidium species were isolated from various samples collected from different locations in China, among which 14 isolates showed different morphological characteristics to other strains identified as known Aureobasidium species. Based on morphological characteristics, those 14 strains were classified into four groups, represented by stains of KCL139, MDSC−10, XZY411−4, and MQL9−100, respectively. Molecular analysis of the internal transcriptional spacer (ITS) and part of the large ribosome subunit (D1/D2 domains) indicated that those four groups represent four new species in the Aureobasidium. Therefore, the names Aureobasidium insectorum sp. nov., A. planticola sp. nov., A. motuoense sp. nov., and A. intercalariosporum sp. nov. are proposed for KCL139, MDSC−10, XZY411−4, and MQL9−100, respectively. We also found that there were differences in the yield of exopolysaccharides (EPS) among and within species, indicating strain-related exopolysaccharide-producing diversity.

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“…Aureobasidiu (A.) mangrovei S. Nasr is a saprophytic black yeast-like fungus that was isolated from healthy leaves of Avicinnia marina in Iran [7]. The species has some resemblance to Aurebasidium pullulans which is also a yeast-like fungus capable of producing pullulan.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Pullulan-Mediated Silver Nanoparticles (AgNPs) and their Antimicrobial Activities

Al-Owasi

Elshafie

Sivakumar

et al. 2020

SQU Journal for Science

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The synthesis of silver nanoparticles (AgNPs), using plant extracts, bacteria, fungi and yeasts, and their antimicrobial activities have been widely investigated and well documented. However, pullulan AgNPs and their antimicrobial activities have not received much attention. The objective of this study was to synthesize pullulan AgNPs, characterize them, and test their antibacterial and antifungal activities. Pullulan was extracted from Aureobasidium mangrovei isolated from Oman and, using UV-Vis spectroscopy and Fourier Transform Infrared (FT-IR), found to be identical to the commercial pullulan obtained from Sigma, USA. Transmission electron microscopy (TEM) showed that most of the synthesized particles were poly-dispersed, irregular in shape, and most were spherical with an average size of 9.76 nm. Pullulan-mediated AgNPs were found to have antibacterial activities, and the ANOVA test showed that there were no significant differences between AgNO3, Pullulan and pullulan-mediated AgNPs for all the bacteria tested. Pullulan-mediated nanoparticles were found to have antifungal activity against Curvularia lunata, Fusarium incarnatum, Aspergillus niger, Aspergillus flavus, Aspergillus ochraceus and Penicillium sp. The ANOVA test also revealed that there was a significant difference in antifungal activity between pullulan and pullulan-mediated AgNPs, pullulan-mediated nanoparticles having shown a higher inhibitory activity than pullulan. Pullulan and pullulan-mediated nanoparticles could be used in the food industry and are safer than silver nitrates.

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Aureobasidium mangrovei sp. nov., an ascomycetous species recovered from Hara protected forests in the Persian Gulf, Iran

Cited by 17 publications

References 28 publications

Aspergillus terreus obtained from mangrove exhibits antagonistic activities against Pythium aphanidermatum-induced damping-off of cucumber

Aspergillus terreus obtained from mangrove exhibits antagonistic activities against Pythium aphanidermatum-induced damping-off of cucumber

Proposal of Four New Aureobasidium Species for Exopolysaccharide Production

Synthesis of Pullulan-Mediated Silver Nanoparticles (AgNPs) and their Antimicrobial Activities

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