Morphological and Pathogenic Variability among Rhizoctonia bataticola Isolates Associated with Soybean (Glycine max L.) from India

Gade, R. M.; Belkar, Y.K.; Ingle, Y. V.

doi:10.20546/ijcmas.2018.701.310

Cited by 4 publications

(5 citation statements)

References 16 publications

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“…The colony Mp-1 (JBP) , Mp-2 (NAR) and Mp-14 (SHR) , had more than 70.0 sclerotia per microscopic field. Our findings revealed that isolates were variable concerning growth pattern, colony appearance and morphological traits, which are in agreement with the previous finding that also depicted variabilities in M. phaseolina isolated from different areas (Aghakhani and Dubey, 2009;Iqbal and Mukhtar, 2014;Gade et al, 2018).…”

Section: Cultural and Morphological Characteristics Of Isolatessupporting

confidence: 92%

Distribution of Charcoal Rot of Soybean, its Influencing Factors and Pathogenic Variabilities in Different Regions of Madhya Pradesh

Amrate,

Chaukika,

Kharte

et al. 2024

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Background: Macrophomina phaseolina (Tassi) Goid is a necrotrophic soil-inhabiting fungus that causes disease in several economic plants worldwide and has now become a serious threat to soybean cultivation in central India. Methods: The random surveys were done during 2018 and 2019 to determine the present status of charcoal rot (M. phaseolina) in key soybean growing districts of Madhya Pradesh. Sixteen isolates of pathogen were characterized based on morpho-cultural and pathogenic variability by using cut stem inoculation techniques at J.N.K.V.V., Jabalpur. Result: Charcoal rot was prevalent in all surveyed sixteen districts of Madhya Pradesh. Out of six, Kymore plateau and Satpura hills (44.5%), Satpura plateau (42.5%), Central Narmada Valley (42.0%) and Vindhyan plateau agroclimatic zones (35.0%) were identified as favouable zones for charcoal rot. Malwa plateau (16.25%) and Northern hill region (24.5%) had low incidences of charcoal rot. Among varieties, JS 95-60, JS 93-05 and JS 20-29 were highly affected, whereas, JS 20-34, JS 20-98 and JS 20-69 were least affected. Incidence of charcoal rot was comparatively higher in the fields that had Maize-Chickpea (26.32%), Maize-Wheat, Soybean- Pea and Soybean - Chickpea cropping patterns in the previous year and lowest in Rice-Chickpea (12.00%) and Rice - Wheat (12.45%) cropping patterns. The incidence of charcoal rot was partially higher in the fields with light soil (21.3%) than in heavy soil (19.0%). Isolates investigation revealed that isolates from Jabalpur, Hoshangabad, Chhindwara and Sagar were fast-growing variables and highly aggressive in developing necrotic lesions on the cut stem of soybean. This investigation could be instrumental in forewarning sensitive areas of charcoal rot, varietal options and crop rotation to be followed to minimize the incidence of charcoal rot. Moreover, identified variable aggressive isolates could be utilized in genotype resistance screening programs.

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Section: Cultural and Morphological Characteristics Of Isolatessupporting

confidence: 92%

Distribution of Charcoal Rot of Soybean, its Influencing Factors and Pathogenic Variabilities in Different Regions of Madhya Pradesh

Amrate,

Chaukika,

Kharte

et al. 2024

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“…The pathogenic variability among the isolates of M. phaseolina was reported by several studies with different crops. The occurrence of 40 M. phaseolina isolates from major soybean-growing states of India was reported ( Gade et al., 2018 ), as well as in safflower ( Prasad et al., 2011 ). The variation in the incidence of root rot disease might be due to the differences in pathogen isolates’ virulence in surveyed locations.…”

Section: Discussionmentioning

confidence: 99%

“…Pathogenic variability of all the 60 M. phaseolina isolates was carried out by soil infestation technique in an earthen pot under controlled environmental conditions ( Gade et al., 2018 ) by using cultivars JL-24 (Phule Pragati) and K-6 (Kadiri-6), with three replications for each isolate in a completely randomized design. Sterilized soil filled in 6-inch diameter earthen pots and inoculum was mixed in soil with each isolate of M. phaseolina in 1:9 proportions (inoculum + soil) 10 days before sowing.…”

Section: Methodsmentioning

confidence: 99%

“…The dry root rot incidence was recorded 45 days after sowing, and the percent disease incidence was calculated. Based on the percent disease incidence in the host, the M. phaseolina isolates were categorized into four groups: weakly pathogenic, moderately pathogenic, strongly pathogenic, and aggressively pathogenic ( Gade et al., 2018 ).…”

Section: Methodsmentioning

confidence: 99%

“…Understanding the disease epidemiology and host-pathogen interactions is greatly dependent on knowledge of the diversity of the pathogen at the crop field level (Prasad et al, 2011). Variations in morphological and cultural characteristics of dry root rot pathogen and differences in the pathogenicity or host preference among isolates have previously been reported (Aghakhani and Dubey, 2009;Sharma et al, 2012;Gowdra et al, 2015;Gade et al, 2018). A recent comprehensive study conducted in India and Myanmar used multiple methods, such as paper towel assay, glasshouse assay, and field conditions, to analyze mungbean dry root rot, incited by M. phaseolina.…”

Section: Introductionmentioning

confidence: 99%

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Prevalence of groundnut dry root rot (Macrophomina phaseolina (Tassi) Goid.) and its pathogenic variability in Southern India

Pamala,

Jayalakshmi,

Vemana

et al. 2023

Front. Fungal Biol.

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Macrophomina phaseolina is the most devastating and emerging threat to groundnut production in India. An increase in average temperature and inconsistent rainfalls resulting from changing climatic conditions are strongly believed to aggravate the disease and cause severe yield losses. The present study aims to conduct a holistic survey to assess the prevalence and incidence of dry root rot of groundnut in major groundnut growing regions of Southern India, viz., Andhra Pradesh, Telangana, Karnataka, and Tamil Nadu. Furthermore, the pathogenic variability was determined using different assays such as morphological, cultural, pathogenic, and molecular assays. Results indicate that disease incidence in surveyed locations ranged from 8.06 to 20.61%. Both temperature and rainfall played a major role in increasing the disease incidence. The pathogenic variability of M. phaseolina isolates differed significantly, based on the percent disease incidence induced on cultivars of JL-24 groundnut and K-6 groundnut. Morphological variations in terms of growth pattern, culture color, sclerotia number, and sclerotia size were observed. The molecular characterization of M. phaseolina isolates done by ITS rDNA region using ITS1 and ITS4 primers yielded approximately 600 bp PCR amplicons, sequenced and deposited in GenBank (NCBI). Molecular variability analysis using SSR primers indicated the genetic variation among the isolates collected from different states. The present investigation revealed significant variations in pathogenic variability among isolates of M. phaseolina and these may be considered important in disease management and the development of resistant cultivars against groundnut dry root rot disease.

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Morphological, molecular and pathogenic characterization of Rhizoctonia bataticola isolates causing dry root rot of chickpea in Turkey

Basbagci¹,

Dolar

2022

Archives of Phytopathology and Plant Protection

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Morphological and Pathogenic Variability among Rhizoctonia bataticola Isolates Associated with Soybean (Glycine max L.) from India

Cited by 4 publications

References 16 publications

Distribution of Charcoal Rot of Soybean, its Influencing Factors and Pathogenic Variabilities in Different Regions of Madhya Pradesh

Distribution of Charcoal Rot of Soybean, its Influencing Factors and Pathogenic Variabilities in Different Regions of Madhya Pradesh

Prevalence of groundnut dry root rot (Macrophomina phaseolina (Tassi) Goid.) and its pathogenic variability in Southern India

Morphological, molecular and pathogenic characterization of Rhizoctonia bataticola isolates causing dry root rot of chickpea in Turkey

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