Dr.D. Nagaraju - Profile on Academia.edu (original) (raw)

Papers by Dr.D. Nagaraju

Ulocladium gpagarwalii and U. lignicola two new sp. nov. from Andhra Pradesh

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.

Trichoderma: Boon for Agriculture

Biodiversity, taxonomy and plant disease diagnostics of plant pathogenic fungi from India

Indian Phytopathology

Spegazzinia saccardo-demataceous hyphomycete from India

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.

Arbuscular mycorrhizal fungi with reference to different cultivars of Sesamum indicum L

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.

International Journal of Advanced Research, 2017

Groundwater is becoming a scant resource in part of Kollegal taluk, Chamarajnagar District, Karna... more Groundwater is becoming a scant resource in part of Kollegal taluk, Chamarajnagar District, Karnataka State. This area receives an average annual rainfall of 696 mm. Groundwater has been the major sources of irrigation and drinking purpose for several years almost 80 percent of area is underlain by hard rocks. The study area is drought prone, most of the people in this area depend on groundwater for drinking water and agriculture. Therefore, constant monitoring and assessment of water resource is necessary. The study area is bounded by Yelandur and T. Narasipura Taluk to the west, Mandya and Bangalore to the North, and East and South it is bounded by Dharamapuri District of TamilNadu this area is located in the south eastern corner of Karnataka. The area is located between 77 0 5 1 to 77 0 30 1 East longitude 11 0 45 1 to 12 0 15 1 North latitude with an areal extent of 1026sq km covering 138 villages coming under the Survey of India Toposheet (SOI) numbers are 57 H/4, 57H/7, 57H/8,, 58E/1 and 58E/5. The study area comes under the semiarid region. In recent years, this region has been facing water scarcity as well as water quality problems. The major sources of employment are sericulture, agriculture and horticulture, engaging almost 70% of the workforce. Water samples have been collected from 68 locations of the study area, during the monsoon year 2016, The collected samples were analysed for chemical parameters. In the study area Ca-Mg-HCO3 type of water predominates during the mansoon season of year 2016. On the basis of hydro-chemical facies classification the water is found to be suitable for irrigation.The other evaluated parameters are SAR, RSC, salinity sodium hazard and USSL Classification.

Mycofloristics of Some Forest Localities in Khammam: Some New Additions to the Fungi of Andhra Pradesh, India

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.

Diversity, Ecology and Utilization of Soil Fungi: Indian Scenario

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...

Biodiversity, taxonomy and plant disease diagnostics of plant pathogenic fungi from India

Indian phytopathology, 2021

Fungi Occurring on Diversified Habitats Around Some Sanctuaries and Water-Bodies of Telangana and Andhra Pradesh, India

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.

Soil fungi from Andhra Pradesh, India

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).

First report of white rust disease on Portulaca Olaracea l. caused by Albugo portulacae (Dc.ex. duby) Kuntze from Indi

The Journal of Indian Botanical Society

Indian phytopathology, 2017

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.

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.

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.

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.

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.

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.

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.

Ulocladium gpagarwalii and U. lignicola two new sp. nov. from Andhra Pradesh

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.

Trichoderma: Boon for Agriculture

Biodiversity, taxonomy and plant disease diagnostics of plant pathogenic fungi from India

Indian Phytopathology

Spegazzinia saccardo-demataceous hyphomycete from India

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.

Arbuscular mycorrhizal fungi with reference to different cultivars of Sesamum indicum L

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.

International Journal of Advanced Research, 2017

Groundwater is becoming a scant resource in part of Kollegal taluk, Chamarajnagar District, Karna... more Groundwater is becoming a scant resource in part of Kollegal taluk, Chamarajnagar District, Karnataka State. This area receives an average annual rainfall of 696 mm. Groundwater has been the major sources of irrigation and drinking purpose for several years almost 80 percent of area is underlain by hard rocks. The study area is drought prone, most of the people in this area depend on groundwater for drinking water and agriculture. Therefore, constant monitoring and assessment of water resource is necessary. The study area is bounded by Yelandur and T. Narasipura Taluk to the west, Mandya and Bangalore to the North, and East and South it is bounded by Dharamapuri District of TamilNadu this area is located in the south eastern corner of Karnataka. The area is located between 77 0 5 1 to 77 0 30 1 East longitude 11 0 45 1 to 12 0 15 1 North latitude with an areal extent of 1026sq km covering 138 villages coming under the Survey of India Toposheet (SOI) numbers are 57 H/4, 57H/7, 57H/8,, 58E/1 and 58E/5. The study area comes under the semiarid region. In recent years, this region has been facing water scarcity as well as water quality problems. The major sources of employment are sericulture, agriculture and horticulture, engaging almost 70% of the workforce. Water samples have been collected from 68 locations of the study area, during the monsoon year 2016, The collected samples were analysed for chemical parameters. In the study area Ca-Mg-HCO3 type of water predominates during the mansoon season of year 2016. On the basis of hydro-chemical facies classification the water is found to be suitable for irrigation.The other evaluated parameters are SAR, RSC, salinity sodium hazard and USSL Classification.

Mycofloristics of Some Forest Localities in Khammam: Some New Additions to the Fungi of Andhra Pradesh, India

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.

Diversity, Ecology and Utilization of Soil Fungi: Indian Scenario

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...

Biodiversity, taxonomy and plant disease diagnostics of plant pathogenic fungi from India

Indian phytopathology, 2021

Fungi Occurring on Diversified Habitats Around Some Sanctuaries and Water-Bodies of Telangana and Andhra Pradesh, India

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.

Soil fungi from Andhra Pradesh, India

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).

First report of white rust disease on Portulaca Olaracea l. caused by Albugo portulacae (Dc.ex. duby) Kuntze from Indi

The Journal of Indian Botanical Society

Indian phytopathology, 2017

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.

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.

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.

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.

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.

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.

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.