Desert soil fungi isolated from Saudi Arabia: cultivable fungal community and biochemical production

Ameen, Fuad; AlNadhari, Saleh; Yassin, Mohamed A.; Al-Sabri, Ahmed; Almansob, Abobakr; Alqahtani, Norah; Stephenson, Steven L.

doi:10.1016/j.sjbs.2021.12.011

Cited by 18 publications

(8 citation statements)

References 48 publications

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“…The genus Acremonium and Trichoderma were recorded in moderate occurrence while the remining nine genera namely:, Chaetomium, Circinella, Cladosporium, Curvularia, Emericella, Fennellia, Humicola, Mucor and Rhizopus were recovered in low occurrence. From soil samples collected from different sites in Saudi Arabian deserts, Aspergillus, Penicillium, Alternaria, Fusariam, Ulocladium, Trichoderma, Chaetomium, Curvularia, Stemphylium, Talaromyces and Cladophialophora genera were isolated ( 25 ). Many investigators have previously recorded all of the above genera and species at various levels on a variety of media using soil samples collected from various locations in the Saudi Arabian desert ( 26 – 30 ).…”

Section: Discussionmentioning

confidence: 99%

Fungi associated with ornamental plants in some Nurseries in Al–Qurayyat, Jouf region, Saudi Arabia

Massoud¹,

Khalil²

2023

IJM

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Background and Objectives: Fungi communities are important soil components as decomposers and plant symbionts, and they play an important part in natural ecological and biogeochemical processes. In this study, isolation and identification of terrestrial and zoosporic fungi were detected. Materials and Methods: Sixty–seven fungal species from thirty–four genera were isolated from 45 soil samples obtained randomly from nurseries in Al–Qurayyat, Jouf reagon, Saudi Arabia using the soil dilution technique on glucose–Czapek’s agar medium, cellulose–Czapek’s agar, and Potato dextrose agar medium.Authentic fungus manuals were then used to identify and characterise the mycoflora. Results: A total of 46 fungal species belonging to 22 terrestrial fungal genera were recovered on glucose–Czapek’s agar, 38 species belonging to 20 terrestrial fungal genera were recovered on cellulos–Czapek’s agar and 27 fungal species belonging to 15 terrestrial fungal genera were recovered on PDA medium while 12 species belonging to 7 genera zoosporic fungal genera were discovered. Conclusion: The most common terrestrial fungal genera were Aspergillus, Penicillium, Fusarium, Trichoderma, Acremonium, and Cladosopium while in zoosporic fungus. Allomyces was the most prevalent, followed by Achlya and Pythium.

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Section: Discussionmentioning

confidence: 99%

Fungi associated with ornamental plants in some Nurseries in Al–Qurayyat, Jouf region, Saudi Arabia

Massoud¹,

Khalil²

2023

IJM

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“…Soil conditions in the Arabian Peninsula are known to be very nutrient-limited, high in minerals, such as calcium, magnesium, calcium carbonate, etc., and near neutral pH [ 5 , 37 ]. Nevertheless, microbes and plants can exist in these conditions.…”

Section: Discussionmentioning

confidence: 99%

“…Desert soils are low in nutrients and high in minerals [ 37 ] which can be limiting to plant growth. Associating with PGPB is an adaptation by plants to overcome these limiting factors.…”

Section: Discussionmentioning

confidence: 99%

Microbiome of Citrullus colocynthis (L.) Schrad. Reveals a Potential Association with Non-Photosynthetic Cyanobacteria

et al. 2022

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Citrullus colocynthis grows in the sandy desert soil of the Arabian Peninsula with limited access to water, aside from occasional precipitation or dew. Understanding its ability to produce water-filled fruit and nutrient-rich seeds despite the harsh environment, can be useful for agricultural applications. However, information regarding the microbiome of C. colocynthis is lacking. We hypothesized that C. colocynthis associates with bacteria that aid its survival, like what has been observed in other desert plants. Here, we used 16S rRNA gene data to gain insight into the microbiome of C. colocynthis to identify its associated bacteria. In total, 9818 and 6983 OTUs were generated from root, soil, and leaf samples combined. Overall, bulk soils had the highest alpha diversity, followed by rhizosphere and root zone soils. Furthermore, C. colocynthis is associated with known plant-growth-promoting bacteria (including Acidobacteria, Bacterioidetes, and Actinobacteria), and interestingly a class of non-photosynthetic Cyanobacteria (Melainabacteria) that is more abundant on the inside and outside of the root surface than control samples, suggesting its involvement in the rhizophagy process. This study will provide a foundation for functional studies to further understand how C. colocynthis-microbes interactions help them grow in the desert, paving the path for possible agricultural applications.

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“…About 25 species of Aspergillus have been reported from Saudi Arabia ( Kamel, 2014 ; Taha et al, 2021 ). A. koreanus , a previously unknown species of Aspergillus , has just been described ( Ameen et al, 2022 ). Recently, six more species have been documented in Saudi Arabia, A. asperescens and A. flavips , A. ustus, A. egyptiacus , A. versiolor and A. terreus ( El-Samawaty et al, 2012 ).…”

Section: Introductionmentioning

confidence: 99%

Identification and biodiversity patterns ofAspergillusspecies isolated from some soil invertebrates at high altitude using morphological characteristics and phylogenetic analyses

Awad

Albogami

Mwabvu

et al. 2023

PeerJ

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Background The carcinogenic, mutagenic, and teratogenic chemicals such as aflatoxin are a worldwide health problem. Aspergillus spp., responsible for most cases of aflatoxin contamination, are common in the environment and spread easily to many different types of food. The objectives of this study were to conduct a survey of fungi associated with three soil invertebrates in Taif, Saudi Arabia, identify these isolates and explore mycotoxins formation. Methods In total, 114 fungal isolates were collected from various soil invertebrates (millipedes, Armadillidium vulgare and Porcellio laevis) in Taif, Saudi Arabia, among them, 22 isolates were identified as Aspergillus spp. based on morphological and molecular characteristics followed by both Fusarium and Penicillium. Results The sequences of ITS 1 and ITS 4 were utilized. Using bootstrap analysis, phylogenetic tree was split into two distinct clusters. Five sub clusters were included inside the first major cluster, and their bootstrap value was 99%. While, there were two small clusters in the second major cluster. All the tested Aspergillus strains were able to have a single PCR fragment amplified using the primer AspTef. TEF-1 DNA sequence bootstrap analysis with 1,000 replicates revealed two distinct groups. Additionally, the Aspergillus isolates were grouped into two different clusters with about 65% genetic similarity using ISSR-PCR analysis. The standard polymerase chain reaction was used to effectively amplify the Aopks, afl-A and omt-A genes in aflatoxigenic Aspergillus strains. Four Aspergillus strains used in this investigation were shown to generate aflatoxin B1. While, three Aspergillus stains showed ochratoxin genes. Conclusions In conclusion, the results indicate significant differences in the fungal community between ecoregions and soil invertebrates. Moreover, mycotoxin detection and identification among Aspergillus isolates were elucidated. This study could shed light on the risk of mycotoxin contamination along the supply chain.

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Desert soil fungi isolated from Saudi Arabia: cultivable fungal community and biochemical production

Cited by 18 publications

References 48 publications

Fungi associated with ornamental plants in some Nurseries in Al–Qurayyat, Jouf region, Saudi Arabia

Fungi associated with ornamental plants in some Nurseries in Al–Qurayyat, Jouf region, Saudi Arabia

Microbiome of Citrullus colocynthis (L.) Schrad. Reveals a Potential Association with Non-Photosynthetic Cyanobacteria

Identification and biodiversity patterns ofAspergillusspecies isolated from some soil invertebrates at high altitude using morphological characteristics and phylogenetic analyses

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