A Comparative Account of the Diversity and Distribution of Fungi in Tropical Forest Soils and Sand Dunes of Orissa, India

Panda, T.; Pani, Padmini; Mishra, N.; Mohanty, Ricky

doi:10.1080/09766901.2010.11884716

Cited by 9 publications

(7 citation statements)

References 5 publications

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“…When attempted, it is fairly easy to grow and identify fungi from corneal scrapings and the most common fungi isolated are either Fusarium or Aspergillus spp [2,4,6,7]. The source of these fungi is obviously the environment which is rife with similar species of fungi [12]. Candida spp.…”

Section: Discussionmentioning

confidence: 99%

Diagnosis and treatment outcome of mycotic keratitis at a tertiary eye care center in eastern india

et al. 2011

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BackgroundMycotic keratitis is an important cause of corneal blindness world over including India. Geographical location and climate are known to influence the profile of fungal diseases. While there are several reports on mycotic keratitis from southern India, comprehensive clinico-microbiological reports from eastern India are few. The reported prevalence of mycotic keratitis are 36.7%,36.3%,25.6%,7.3% in southern, western, north- eastern and northern India respectively. This study reports the epidemiological characteristics, microbiological diagnosis and treatment outcome of mycotic keratitis at a tertiary eye care center in eastern India.MethodsA retrospective review of medical and microbiology records was done for all patients with laboratory proven fungal keratitis.ResultsBetween July 2006 and December 2009, 997 patients were clinically diagnosed as microbial keratitis. While no organisms were found in 25.4% (253/997) corneal samples, 23.4% (233/997) were bacterial, 26.4% (264/997) were fungal (45 cases mixed with bacteria), 1.4% (14/997) were Acanthamoeba with or without bacteria and 23.4% (233/997) were microsporidial with or without bacteria. Two hundred fifteen of 264 (81.4%, 215/264) samples grew fungus in culture while 49 corneal scrapings were positive for fungal elements only in direct microscopy. Clinical diagnosis of fungal keratitis was made in 186 of 264 (70.5%) cases. The microscopic detection of fungal elements was achieved by 10% potassium hydroxide with 0.1% calcoflour white stain in 94.8%(238/251) cases. Aspergillus species (27.9%, 60/215) and Fusarium species (23.2%, 50/215) were the major fungal isolates. Concomitant bacterial infection was seen in 45 (17.1%, 45/264) cases of mycotic keratitis. Clinical outcome of healed scar was achieved in 94 (35.6%, 94/264) cases. Fifty two patients (19.7%, 52/264) required therapeutic PK, 9 (3.4%, 9/264) went for evisceration, 18.9% (50/264) received glue application with bandage contact lens (BCL) for impending perforation, 6.1% (16/264) were unchanged and 16.3% (43/264) were lost to follow up. Poor prognosis like PK (40/52, 75.9%, p < 0.001) and BCL (30/50, 60%, p < 0.001) was seen in significantly larger number of patients with late presentation (> 10 days).ConclusionsThe relative prevalence of mycotic keratitis in eastern India is lower than southern, western and north-eastern India but higher than northern India, however, Aspergillus and Fusarium are the predominant genera associated with fungal keratitis across India. The response to medical treatment is poor in patients with late presentation.

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Section: Discussionmentioning

confidence: 99%

Diagnosis and treatment outcome of mycotic keratitis at a tertiary eye care center in eastern india

et al. 2011

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“…have also been isolated from sand dunes [42]. More than 100 species of fungi including sugar fungi have been enumerated from the coastal dunes of Odisha, the majorities of which belonged to the genus Aspergillus followed by Penicillium and Trichoderma [43, 44]. Penicillium population was evenly distributed in those dunes having more than 40 species [45].…”

Section: Sparse Microfungal Diversitymentioning

confidence: 99%

Potential of Microbial Diversity of Coastal Sand Dunes: Need for Exploration in Odisha Coast of India

Nayak

Behera

Dash

2019

The Scientific World Journal

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Coastal sand dunes are hips and strips formed by sand particles which are eroded and ground rock, derived from terrestrial and oceanic sources. This is considered as a specialized ecosystem characterized by conditions which are hostile for life forms like high salt, low moisture, and low organic matter content. However, dunes are also inhabited by diverse groups of flora, fauna, and microorganisms specifically adapted to these situations. Microbial groups like fungi, bacteria, and actinobacteria are quite abundant in the rhizosphere, phyllosphere, and inside plants which are very much essential for the integration of dunes. Microorganisms in this ecosystem have been found to produce a number of bioactive metabolites which are of great importance to agriculture and industries. Many species of arbuscular mycorrhizal fungi and Rhizobia associated with the roots of dune flora are prolific producers of plant growth promoting biochemicals like indole acetic acid. In addition to that bacteria belonging to Pseudomonas sp., Gammaproteobacteria have been found to have antagonistic activity towards plant pathogens like Rhizoctonia solani, Pythium ultimum, Fusarium oxysporum, and Botrytis cinerea. Many neutrophilic and alkaliphilic eubacterial species, endophytic fungi from dunes have proved their ability for the production of extracellular enzymes like cellulase, pectinase, amylase, protease, tannase, chitinase, etc., which are of great importance to various industries. In this context, it is relevant to observe that the state of Odisha in India has a 480km long coast having numerous sand dunes. These dunes are rich in floral and faunal diversity. However, a comprehensive study is yet to be taken up to explore the microbial diversity and their bioactive potential in this region. The current review sheds light on the enormous potential of sand dune microorganisms in the coast and surfaced the idea and need for such exploration in the state of Odisha, India.

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“…These enzymes have wide application in Pharmaceutical industry, agriculture, medicine, food industry, textiles, bioremediation, natural cycling, and many other ways. Fungal biotechnology has become an integral part of the human welfare [4]. The studies indicate that some fungi associated with living tree leaves are also found in association with decomposing leaf litter.…”

Section: Role Of Fungi In Litter Decompositionmentioning

confidence: 99%

A Review on Litter Decomposition by Soil Fungal Community

Geethanjali¹,

Jayashankar²

2016

IOSR

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A Comparative Account of the Diversity and Distribution of Fungi in Tropical Forest Soils and Sand Dunes of Orissa, India

Cited by 9 publications

References 5 publications

Diagnosis and treatment outcome of mycotic keratitis at a tertiary eye care center in eastern india

Diagnosis and treatment outcome of mycotic keratitis at a tertiary eye care center in eastern india

Potential of Microbial Diversity of Coastal Sand Dunes: Need for Exploration in Odisha Coast of India

A Review on Litter Decomposition by Soil Fungal Community

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