Fungi Colonization of the Rhizoplane of Okra (Hibiscusesculentus) Plant

Olanrewaju, Samson Olaitan; Akinro, E.B.; Oladipupo, O. A.

doi:10.9790/2402-08221822

Cited by 3 publications

(3 citation statements)

References 5 publications

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“…This may be attributed to the varying content of the exudates released by the roots and also the particular mycoflora present at that stage of plant development. This result is in line with that obtained by Huang et al [18]; Olanrewaju et al [19]; Olahan et al [20]. Liu et al [21] also observed that root exudates have a greater effect on rhizosphere microbes in sandy loamy soil.…”

Section: Resultssupporting

confidence: 90%

Fungal Diversity in the Rhizosphere and Rhizoplane of Okra (Abelmoschus esculentus L.) Moench. in Nsukka, Enugu State, Nigeria

Onaebi

Okoro

Anyaogu

2020

ARRB

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Aim: The growth and development of economically important crops are usually affected positively or negatively by the microbes present in the rhizosphere and rhizoplane. Based on this, the study was carried out to determine the fungal diversity in the rhizosphere and rhizoplane of okra plant. Methods: Okra seeds were purchased from an agricultural shop in Nsukka main market and were planted at Botanic garden, Department of Plant Science and Biotechnology, University of Nigeria, Nsukka. Physicochemical properties of the soil sample were evaluated prior to planting and as the plant aged. Rhizosphere and rhizoplane samples were collected at two weeks interval and dilution plate method was used in fungi isolation after which they were identified. The frequency of occurrence and the colony forming unit per gram of the sample (cfu/g) were evaluated. Results: The Physicochemical properties of the soil samples fluctuated as plant aged at two weeks intervals. The pH was slightly acidic to neutral which is ideal for most plant to grow. The water retention capacity, moisture content and organic matter content increased from 11.47-27.90 ml/g, 5.03-21.07% and 2.35-3.68% respectively at two weeks interval but fluctuates at subsequent weeks. A total of eleven (11) fungi were isolated from the rhizosphere and were identified as, Aspergillus niger, Aspergillus fumigatus, Aspergillus flavus, Aspergillus bertholletius, Fusarium oxysporum, Galactomyces candidum, Helminthosporium solani, Rhizopus stolonifer, Mucor racemosus, Penicillium citrinum and Trichoderma viride. All fungi were present in the rhizoplane except Aspergillus bertholletius and Penicillium citrinum. Rhizosphere had a greater number of fungi than the rhizoplane. Aspergillus species were predominant in both the rhizosphere and rhizoplane. A. niger had the highest frequency of occurrence of 58.67% on the 6th week and 65.79% on the 4th week in rhizosphere and rhizoplane respectively. The colony forming unit (cfu/g) of Aspergillus niger was significantly different from all other isolates at P≤0.001 followed by Mucor racemosus and Fusarium oxysporum with significant differences at P≤0.05 and P≤0.01 respectively. Conclusion: The rhizosphere and rhizoplane of okra plants has been shown to be rich in fungal diversity and a greater number were obtained from the rhizosphere. The data obtained from this work could be exploited by microbial ecologist to ascertain ecological associations and biomass increase by the fungal communities which also forms part of ecosystem. The fungi had no pathological effect on the plant which suggest positive effect on the growth and development of okra plant as the plant aged.

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Section: Resultssupporting

confidence: 90%

Fungal Diversity in the Rhizosphere and Rhizoplane of Okra (Abelmoschus esculentus L.) Moench. in Nsukka, Enugu State, Nigeria

Onaebi

Okoro

Anyaogu

2020

ARRB

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“…Soil with high organic matter content has higher microbial activity, leading to faster decomposition. Root exudates, such as volatile and dissolved exudates, influence microbial growth in the soil surrounding roots, with most activities associated with roots or newly decomposing organic matter (Helweg, 1975;Olanrewaju et al, 2014).…”

Section: How Soil Pores Influence Processes Like Soil Organic Matter ...mentioning

confidence: 99%

The Hidden World Beneath Our Feet: Unraveling the Role of Soil Pores in the Complex Mechanisms of Soil Carbon Sequestration

Philip James,

Unimke,

Mohammed

et al. 2024

Preprint

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Purpose: The study investigates soil pores' impact on carbon dynamics and sequestration processes, examining their physical and chemical characteristics and their mechanisms for carbon sequestration.Research Method: Existing literature and research on soil pores, carbon dynamics, and carbon sequestration are analyzed. The interrelationships between soil pore structure, water movement, microbial activity, root penetration, carbon input, soil aggregation, and gas exchange are examined. Traditional techniques and advanced imaging methods are used to quantify and characterize soil pores.Findings: Soil pores play a critical role in facilitating carbon sequestration through various mechanisms. They affect water movement, microbial activity, root penetration, carbon input, soil aggregation, and gas exchange. Understanding these relationships is crucial for sustainable soil management.Research Limitations: This study relies on existing literature and research, which may have limitations and uncertainties. Further research is needed to address these gaps and enhance understanding.Originality Value: This research enhances the existing knowledge by comprehensively examining the significance of soil pores in carbon dynamics and sequestration. It incorporates both traditional and advanced methods, providing insights for soil management and contributing to climate change mitigation efforts.

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“…Many of these species were isolated during research with soya bean. A total number of 12 species including A. flavus, A. niger, Mucor, Paecilomyces, Rhizopus and Trichoderma species were isolated by Dawar et al, 3 from the rhizosphere of Amaranthus viridis L. while Olanrewaju et al, 35 reported discovering 12 fungi from okra plant's rhizoplane. Devi and Chhetry, 26 reported greater spectrum of fungal species in the rhizosphere of pigeon pea.…”

Section: Physicochemical Attributes Of the Experimental Soilmentioning

confidence: 99%

Molecular Characterization of Fungal Rhizosphere Community of Soya Beans (Glycine max (L.) Merril) and Their In Vitro Antagonistic Activity

2023

TJNPR

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The rhizosphere is a sophisticated micro-ecological region directly influenced by plant roots. It serves as hotspot for the interaction of a wide range of organisms with their physical environments, including bacteria, fungus, protozoa, and nematodes. These interactions support soil fertility, organic matter decomposition, nutrient cycling, plant feeding, soil structure, and pathogen suppression. [1][2][3] More so, the rhizosphere offers a unique nutritive environment to diverse microbes as the plant roots provide constant supply of nutrients. 4 Interestingly, the physicochemical properties of the soil are known to have influence on the fungal communities of the rhizosphere. The availability of water, pH, and organic matter content are some of the components that determine rhizosphere communities in the soil. Tension is generated within the leaf as water transpires across its surface, and this tension is eventually transmitted to the root system.

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Fungi Colonization of the Rhizoplane of Okra (Hibiscusesculentus) Plant

Cited by 3 publications

References 5 publications

Fungal Diversity in the Rhizosphere and Rhizoplane of Okra (Abelmoschus esculentus L.) Moench. in Nsukka, Enugu State, Nigeria

Fungal Diversity in the Rhizosphere and Rhizoplane of Okra (Abelmoschus esculentus L.) Moench. in Nsukka, Enugu State, Nigeria

The Hidden World Beneath Our Feet: Unraveling the Role of Soil Pores in the Complex Mechanisms of Soil Carbon Sequestration

Molecular Characterization of Fungal Rhizosphere Community of Soya Beans (Glycine max (L.) Merril) and Their In Vitro Antagonistic Activity

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