Dr.D. Nagaraju | Osmania University (original) (raw)
Papers by Dr.D. Nagaraju
Indian phytopathology, 2009
Survey of microfungi from Khammam forest, Andhra Pradesh, yielded two novel anamorphic dematiaceo... more Survey of microfungi from Khammam forest, Andhra Pradesh, yielded two novel anamorphic dematiaceous hyphomycetous fungi belonging to the genus Ulocladium Preuss. These fungi differ from the documented species of Ulocladium , hence described as new species viz. Ulocladium gpagarwalii sp. nov. and Ulocladium lignicola sp. nov.
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Indian Phytopathology
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The Journal of Indian Botanical Society, 2017
India is rich in fungal diversity and there is hidden fungal wealth. During survey2012-2014 of so... more India is rich in fungal diversity and there is hidden fungal wealth. During survey2012-2014 of some forest localities for microfungi five valid species of Spegazzinia Saccardo are encountered. A key has been proposed and all five species are described.
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Indian Phytopathology, 2018
Arbuscular mycorrhizal (AM) fungi are the symbiotic association with plant roots and support plan... more Arbuscular mycorrhizal (AM) fungi are the symbiotic association with plant roots and support plant growth through increased nutrient transport besides offering many other benefits. In the present investigation the role of AM fungi has been worked out in relation to six cultivars of Sesamum indicum L. The data reports the association of six AM fungi, root colonization plant height and yield. Gowri cultivar has exhibited more colonization, plant height, yield, oil content and other factors. Quantitative data of AM fungi has also been presented along with soil-physico-chemical factors.
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International Journal of Advanced Research, 2017
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Microbial Diversity and Biotechnology in Food Security, 2014
India with its varied topography, climate, forest types, soil types, altitudes and specialized ec... more India with its varied topography, climate, forest types, soil types, altitudes and specialized ecological niches possesses a much diversified mycoflora. India has been the cradle for fungi and one-third of global fungal diversity exists in India. The forests of Bhadrachalam, Kothagudem and Paloncha of Khammam District, AP, India which were not explored earlier were surveyed (2007–2010) for micro- and macrofungi colonizing litter, fruit, bark, humid soils, wood and dung. It is interesting to note that the survey has resulted in the critical evaluation of 11 fungi which form new additions to the fungi of A P, India.
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Advancing Frontiers in Mycology & Mycotechnology, 2019
Soil is a dynamic medium and complex ecosystem harbouring millions of microbes including fungi. S... more Soil is a dynamic medium and complex ecosystem harbouring millions of microbes including fungi. Soil maintains a dynamic equilibrium of fungi and other microbes in spite of the constellation of physico-chemical factors. Vegetation along with multiple and minute habitats of varied physico-chemical setup influences the soil fungal communities. Soil fungi can be isolated by conventional, non-conventional and molecular methods. Interestingly, very little is known about the patterns of soil fungal diversity and their functional roles over large geographic scales. Most dominant fungi are Aspergilli and Penicilli followed by anamorphic fungi and others. There is a need to emphasize more on the ecological grouping of soil fungi. Soil and plant health is dependent on the functional activity of soil fungi. Soil fungi are known to play an important role in the cycling of elements, biogeographical demarcation, biogeochemical transformations, recycling of stored energy, degradation of organic ma...
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Indian phytopathology, 2021
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Kavaka, 2021
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Journal of Experimental Biology and Agricultural Sciences, 2014
In the present study 28 localities of Telangana and Andhra Pradesh were surveyed (2001-2002) for ... more In the present study 28 localities of Telangana and Andhra Pradesh were surveyed (2001-2002) for the occurrence of fungi from various substrates like litter, wood, bark, humid soil, leaves, decaying dead leaves, plant debris, twigs and others. Altogether 66 fungal species were isolated and among these anamorphic fungi formed the bulk of fungal flora. Periconiella cocoes, Pseudobotrytis bisbyi, Ramichloridium musae and Saccardea echinocephala are the new additions to the fungi of Telangana and Andhra Pradesh. Some fungi like Ganoderma sps. and Memnoniella sps. have already been established for their biotechnological importance.
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The Journal of Indian Botanical Society, 2014
Various soils viz. pond mud soil, forest soils, cultivated soils supporting different crop plants... more Various soils viz. pond mud soil, forest soils, cultivated soils supporting different crop plants and rhizosphere soils of some crop plants from Andhra Pradesh were surveyed during 1964–2011 for microfungi. Altogether 348 fungal species have been isolated, identified and deposited. The data indicates that there is a hidden wealth of fungi in soil habitat. Among the fungi isolated hyphomycetous fungi have dominated the soils. Members of Basidiomycotina, Mastigomycotina (zoosporic fungi) and Zygomycotina were less frequent. Amongst the genera Aspergillus (38 species) and Penicillium (35 species) were predominant followed by Chaetomium (26 species) and Trichoderma (18 species).
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The Journal of Indian Botanical Society
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Indian phytopathology, 2017
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AM fungi are the plant root obligate symbiotic associates with greater ability of soil exploratio... more AM fungi are the plant root obligate symbiotic associates with greater ability of soil exploration and increasing nutritional uptake and phosphorus. 70-80% of crop plants naturally associated with AM fungi in phosphorus deficient crop soils. AM fungi are known to increase plant growth, yield, tolerate abiotic, biotic stress besides increasing immunity of plant. AM fungi are present in rhizosphere soil in abundance and produce external and internal hyphae, vesicles and arbuscules inside the root cortex, besides hydropho-bic glycoprotein and glomalin. AM fungi increases soil binding capacity and acts as a bio fertilizer. Le-gumes relatively have " P " requirement for nodule development and nitrogen fixation. Vigna crop is grown throughout the country. Therefore, AM fungi have been isolated from non-rhizosphere and rhizosphere soil supporting Vigna plantation. Data on AM fungal spore count morpho-taxonomy of AM fungi, percentage , root colonization, impact of pH, orgnic carbon and phosphorous are evaluated. The data also has indicated that Acaulospora bireticulata , Zygosporium rostratum are the AM fungi associated with Vigna radiata.
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Phylloplane fungi associated with the leaves of Vitex negundo Linn., (Perennial Medicinal Plant) ... more Phylloplane fungi associated with the leaves of Vitex negundo Linn., (Perennial Medicinal Plant) collected from Bhadrachalam forest localities of Telangana region has been worked out for a period of 12 months (2015-2016) at monthly intervals using dilution plate technique and leaf impression methods respectively. Fungi have been identified up to species level. Altogether 127 fungal species belonging to 61 genera are recorded. There is not much difference in the fungal species composition of abaxial and adaxial leaf surfaces. 16 fungi have been reported as new additions to the fungi of Telangana state. This is the first report of phylloplane fungi of Vitex negundo Linn.
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India is rich in fungal diversity and there is hidden fungal wealth. During survey2012-2014 of so... more India is rich in fungal diversity and there is hidden fungal wealth. During survey2012-2014 of some forest localities for microfungi five valid species of Spegazzinia Saccardo are encountered. A key has been proposed and all five species are described.
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Phosphorus is an important nutrient required for plant growth, yield and adaptability to differen... more Phosphorus is an important nutrient required for plant growth, yield and adaptability to different ecological conditions. Many Indian soils are
deficient in phosphorus. The organic form of available phosphorus is meagre and mineral phosphorus such as rock phosphate is found in large
quantities. The mineral phosphorus needs to be solubilized by varied groups of microorganisms, thus making 'P' available for crop plants and
forestry. This review presents information on role of phosphate solubilizing fungi and microbes for sustainable agriculture and agro-forestry.
KEYWORDS: Agriculture, agroforestry, fungi, microbes, phosphorus, rock phosphate.
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This communication deals with thirty myxomycetous taxa collected and identified from different fo... more This communication deals with thirty myxomycetous taxa collected and identified from different forests of Telangana state, India. This report is an addition to the previously described taxa from India.
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Survey of microfungi from Bhadrachalam forest, Andhra Pradesh, yielded a novel synnematous hyphom... more Survey of microfungi from Bhadrachalam forest, Andhra Pradesh, yielded a novel synnematous hyphomycetous fungus. The synnemata on substrate are erect to suberect, white, capitate with loosely packed conidiophores, conidiogenous cells bearing one celled, 4-6 botryose conidia on denticles. This fungus differs from the documented genera of synnematous fungi, and hence described as a new genus viz. Bhadradriella hyalina gen. et sp. nov.
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Indian phytopathology, 2009
Survey of microfungi from Khammam forest, Andhra Pradesh, yielded two novel anamorphic dematiaceo... more Survey of microfungi from Khammam forest, Andhra Pradesh, yielded two novel anamorphic dematiaceous hyphomycetous fungi belonging to the genus Ulocladium Preuss. These fungi differ from the documented species of Ulocladium , hence described as new species viz. Ulocladium gpagarwalii sp. nov. and Ulocladium lignicola sp. nov.
Bookmarks Related papers MentionsView impact
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Indian Phytopathology
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The Journal of Indian Botanical Society, 2017
India is rich in fungal diversity and there is hidden fungal wealth. During survey2012-2014 of so... more India is rich in fungal diversity and there is hidden fungal wealth. During survey2012-2014 of some forest localities for microfungi five valid species of Spegazzinia Saccardo are encountered. A key has been proposed and all five species are described.
Bookmarks Related papers MentionsView impact
Indian Phytopathology, 2018
Arbuscular mycorrhizal (AM) fungi are the symbiotic association with plant roots and support plan... more Arbuscular mycorrhizal (AM) fungi are the symbiotic association with plant roots and support plant growth through increased nutrient transport besides offering many other benefits. In the present investigation the role of AM fungi has been worked out in relation to six cultivars of Sesamum indicum L. The data reports the association of six AM fungi, root colonization plant height and yield. Gowri cultivar has exhibited more colonization, plant height, yield, oil content and other factors. Quantitative data of AM fungi has also been presented along with soil-physico-chemical factors.
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International Journal of Advanced Research, 2017
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Microbial Diversity and Biotechnology in Food Security, 2014
India with its varied topography, climate, forest types, soil types, altitudes and specialized ec... more India with its varied topography, climate, forest types, soil types, altitudes and specialized ecological niches possesses a much diversified mycoflora. India has been the cradle for fungi and one-third of global fungal diversity exists in India. The forests of Bhadrachalam, Kothagudem and Paloncha of Khammam District, AP, India which were not explored earlier were surveyed (2007–2010) for micro- and macrofungi colonizing litter, fruit, bark, humid soils, wood and dung. It is interesting to note that the survey has resulted in the critical evaluation of 11 fungi which form new additions to the fungi of A P, India.
Bookmarks Related papers MentionsView impact
Advancing Frontiers in Mycology & Mycotechnology, 2019
Soil is a dynamic medium and complex ecosystem harbouring millions of microbes including fungi. S... more Soil is a dynamic medium and complex ecosystem harbouring millions of microbes including fungi. Soil maintains a dynamic equilibrium of fungi and other microbes in spite of the constellation of physico-chemical factors. Vegetation along with multiple and minute habitats of varied physico-chemical setup influences the soil fungal communities. Soil fungi can be isolated by conventional, non-conventional and molecular methods. Interestingly, very little is known about the patterns of soil fungal diversity and their functional roles over large geographic scales. Most dominant fungi are Aspergilli and Penicilli followed by anamorphic fungi and others. There is a need to emphasize more on the ecological grouping of soil fungi. Soil and plant health is dependent on the functional activity of soil fungi. Soil fungi are known to play an important role in the cycling of elements, biogeographical demarcation, biogeochemical transformations, recycling of stored energy, degradation of organic ma...
Bookmarks Related papers MentionsView impact
Indian phytopathology, 2021
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Kavaka, 2021
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Journal of Experimental Biology and Agricultural Sciences, 2014
In the present study 28 localities of Telangana and Andhra Pradesh were surveyed (2001-2002) for ... more In the present study 28 localities of Telangana and Andhra Pradesh were surveyed (2001-2002) for the occurrence of fungi from various substrates like litter, wood, bark, humid soil, leaves, decaying dead leaves, plant debris, twigs and others. Altogether 66 fungal species were isolated and among these anamorphic fungi formed the bulk of fungal flora. Periconiella cocoes, Pseudobotrytis bisbyi, Ramichloridium musae and Saccardea echinocephala are the new additions to the fungi of Telangana and Andhra Pradesh. Some fungi like Ganoderma sps. and Memnoniella sps. have already been established for their biotechnological importance.
Bookmarks Related papers MentionsView impact
The Journal of Indian Botanical Society, 2014
Various soils viz. pond mud soil, forest soils, cultivated soils supporting different crop plants... more Various soils viz. pond mud soil, forest soils, cultivated soils supporting different crop plants and rhizosphere soils of some crop plants from Andhra Pradesh were surveyed during 1964–2011 for microfungi. Altogether 348 fungal species have been isolated, identified and deposited. The data indicates that there is a hidden wealth of fungi in soil habitat. Among the fungi isolated hyphomycetous fungi have dominated the soils. Members of Basidiomycotina, Mastigomycotina (zoosporic fungi) and Zygomycotina were less frequent. Amongst the genera Aspergillus (38 species) and Penicillium (35 species) were predominant followed by Chaetomium (26 species) and Trichoderma (18 species).
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The Journal of Indian Botanical Society
Bookmarks Related papers MentionsView impact
Indian phytopathology, 2017
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AM fungi are the plant root obligate symbiotic associates with greater ability of soil exploratio... more AM fungi are the plant root obligate symbiotic associates with greater ability of soil exploration and increasing nutritional uptake and phosphorus. 70-80% of crop plants naturally associated with AM fungi in phosphorus deficient crop soils. AM fungi are known to increase plant growth, yield, tolerate abiotic, biotic stress besides increasing immunity of plant. AM fungi are present in rhizosphere soil in abundance and produce external and internal hyphae, vesicles and arbuscules inside the root cortex, besides hydropho-bic glycoprotein and glomalin. AM fungi increases soil binding capacity and acts as a bio fertilizer. Le-gumes relatively have " P " requirement for nodule development and nitrogen fixation. Vigna crop is grown throughout the country. Therefore, AM fungi have been isolated from non-rhizosphere and rhizosphere soil supporting Vigna plantation. Data on AM fungal spore count morpho-taxonomy of AM fungi, percentage , root colonization, impact of pH, orgnic carbon and phosphorous are evaluated. The data also has indicated that Acaulospora bireticulata , Zygosporium rostratum are the AM fungi associated with Vigna radiata.
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Phylloplane fungi associated with the leaves of Vitex negundo Linn., (Perennial Medicinal Plant) ... more Phylloplane fungi associated with the leaves of Vitex negundo Linn., (Perennial Medicinal Plant) collected from Bhadrachalam forest localities of Telangana region has been worked out for a period of 12 months (2015-2016) at monthly intervals using dilution plate technique and leaf impression methods respectively. Fungi have been identified up to species level. Altogether 127 fungal species belonging to 61 genera are recorded. There is not much difference in the fungal species composition of abaxial and adaxial leaf surfaces. 16 fungi have been reported as new additions to the fungi of Telangana state. This is the first report of phylloplane fungi of Vitex negundo Linn.
Bookmarks Related papers MentionsView impact
India is rich in fungal diversity and there is hidden fungal wealth. During survey2012-2014 of so... more India is rich in fungal diversity and there is hidden fungal wealth. During survey2012-2014 of some forest localities for microfungi five valid species of Spegazzinia Saccardo are encountered. A key has been proposed and all five species are described.
Bookmarks Related papers MentionsView impact
Phosphorus is an important nutrient required for plant growth, yield and adaptability to differen... more Phosphorus is an important nutrient required for plant growth, yield and adaptability to different ecological conditions. Many Indian soils are
deficient in phosphorus. The organic form of available phosphorus is meagre and mineral phosphorus such as rock phosphate is found in large
quantities. The mineral phosphorus needs to be solubilized by varied groups of microorganisms, thus making 'P' available for crop plants and
forestry. This review presents information on role of phosphate solubilizing fungi and microbes for sustainable agriculture and agro-forestry.
KEYWORDS: Agriculture, agroforestry, fungi, microbes, phosphorus, rock phosphate.
Bookmarks Related papers MentionsView impact
This communication deals with thirty myxomycetous taxa collected and identified from different fo... more This communication deals with thirty myxomycetous taxa collected and identified from different forests of Telangana state, India. This report is an addition to the previously described taxa from India.
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Survey of microfungi from Bhadrachalam forest, Andhra Pradesh, yielded a novel synnematous hyphom... more Survey of microfungi from Bhadrachalam forest, Andhra Pradesh, yielded a novel synnematous hyphomycetous fungus. The synnemata on substrate are erect to suberect, white, capitate with loosely packed conidiophores, conidiogenous cells bearing one celled, 4-6 botryose conidia on denticles. This fungus differs from the documented genera of synnematous fungi, and hence described as a new genus viz. Bhadradriella hyalina gen. et sp. nov.
Bookmarks Related papers MentionsView impact