Morphological and Pathogenic Variability in Bipolaris sorokiniana Causing Spot Blotch in Wheat (Triticum aestivum, T. durum, T. dicoccum) in India

Chauhan, Pushpendra; Singh, Dalbir; Karwasra, S. S.

doi:10.20546/ijcmas.2017.611.412

Cited by 10 publications

(6 citation statements)

References 7 publications

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“…The range of colour of cytoplasm was witnessed in spores of different isolates of B. sorokiniana and the colour was light blue, blue, brown and greenish blue in the cytoplasm of spores, after staining (Table 2) [41]. The radial mycelial growth rate, color of the colony, surface texture of the colony, shape of the colony, conidia production ability and shape and color of conidia of B. sorokiniana the mycelial growth rate of the isolates ranged from 1.39 to 4.46 mm/day.…”

Section: Morphological Variability Colony Growth Behavior and Pathoge...mentioning

confidence: 99%

“…She found that at 10 days old culture give the best result but decreased gradually with the age [55]. Optimal growth of B. sorokiniana in four media such as the Potato dextrose agar (PDA), corn meal agar (CMA), V8 agar (V8A) and water [41]. A geographical racial differentiation of Bipolaris sorokiniana as he found a tendency for isolates from warm and dry regions to be less virulent and most virulent isolates came from southern and central Africa [17].…”

Section: Morphological Variability Colony Growth Behavior and Pathoge...mentioning

confidence: 99%

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Efficacy of Plant Extracts on Morphology and Cultural Characteristics of <i>Bipolaris sorokiniana</i>, Causing Black Point Disease of Wheat in Bangladesh

Yesmin,

Azad,

Aminuzzaman

et al. 2023

AJPS

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Black point of wheat caused by Bipolaris sorokiniana (Bs) is very destructive disease of wheat in Bangladesh and all over the world. The symptoms of diseases caused by Bipolaris sorokiniana can vary depending on the host plant and environmental conditions. The conidia of Bs germinate from two poles, which differ physiologically as indicated by the rate, growth character, of length, breadth and number of septa on different media. The aim of this study was to evaluate the efficacy of selected plant extracts on the morphology and cultural characteristics of the fungus Bipolaris sorokiniana causing black point disease in wheat crops in Bangladesh. The efficacy of fifteen plant extracts on the growth and characteristics of Bs was conducted in vitro in 2019-2020. The treatments were: Untreated control, T 1 -Black berry Leaves, T 2 -Guava Leaves, T 3 -Lantena camera leaves, T 4 -Eucalyptus Leaves, T 5 -Turmeric Leaves, T 6 -Khoksha Leaves, T 7 -Papaya leaves, T 8 -Gurlic Bulb, T 9 -Chili dust, T 10 -Nigella seeds, T 11 -Turmeric dust, T 12 -Cloves, T 13 -Bohera fruits, T 14 -Black pepper and T 15 -Neem leaves. After 15 days of inoculation of Bipolaris sorokiniana, colony color and shapes were Gerrish blackish, greenish blackish, greyish blackish and shapes were round or irregular. In our study, conidia color was dark brown to light brown, conidiophore color was brown, dark brown, grayish brown, dark olivaceous, light brown and conidia shapes were elliptical, oblong or slightly curved. The septation of conidia was 2 -5 and highest septation was seen in T 4 and T 14 treatments. The highest conidial length was 17.79 µm recorded in T 2 treatment and lowest was 6.62 µm T 9 treatment where conidial breath was 8.27 µm in control and lowest was 3.79 µm in T 8 treatment. Mycelial growth rate of Bipolaris sorokiniana was different in different treatments in different days af-How to cite this paper:

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Section: Morphological Variability Colony Growth Behavior and Pathoge...mentioning

confidence: 99%

Section: Morphological Variability Colony Growth Behavior and Pathoge...mentioning

confidence: 99%

Efficacy of Plant Extracts on Morphology and Cultural Characteristics of <i>Bipolaris sorokiniana</i>, Causing Black Point Disease of Wheat in Bangladesh

Yesmin,

Azad,

Aminuzzaman

et al. 2023

AJPS

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show abstract

“…The pathogen ( B. sorokiniana ) has also been studied for occurrence of races/pathotypes and identification of genes involved in pathogenesis. In several studies, isolates have been collected from specific geographical regions and differentials suggested for classification of these isolates into groups, sometimes erroneously described as pathotypes ( Aggarwal et al., 2009 ; Chauhan et al., 2017 ; also see reviews by Gupta et al., 2018a and Navathe et al., 2022 ). So far, no physiological races or pathotypes have been identified and described, although a virulence gene has been identified ( VHv1 in barley and VTa1 in wheat; Zhong et al., 2002 ).…”

Section: Introductionmentioning

confidence: 99%

Genetics of spot blotch resistance in bread wheat (Triticum aestivum L.) using five models for GWAS

Singh

Gaurav²,

Vasistha³

et al. 2023

Front. Plant Sci.

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Genetic architecture of resistance to spot blotch in wheat was examined using a Genome-Wide Association Study (GWAS) involving an association panel comprising 303 diverse genotypes. The association panel was evaluated at two different locations in India including Banaras Hindu University (BHU), Varanasi (Uttar Pradesh), and Borlaug Institute for South Asia (BISA), Pusa, Samastipur (Bihar) for two consecutive years (2017-2018 and 2018-2019), thus making four environments (E1, BHU 2017-18; E2, BHU 2018-19; E3, PUSA, 2017-18; E4, PUSA, 2018-19). The panel was genotyped for 12,196 SNPs based on DArT-seq (outsourced to DArT Ltd by CIMMYT); these SNPs included 5,400 SNPs, which could not be assigned to individual chromosomes and were therefore, described as unassigned by the vendor. Phenotypic data was recorded on the following three disease-related traits: (i) Area Under Disease Progress Curve (AUDPC), (ii) Incubation Period (IP), and (iii) Lesion Number (LN). GWAS was conducted using each of five different models, which included two single-locus models (CMLM and SUPER) and three multi-locus models (MLMM, FarmCPU, and BLINK). This exercise gave 306 MTAs, but only 89 MTAs (33 for AUDPC, 30 for IP and 26 for LN) including a solitary MTA detected using all the five models and 88 identified using four of the five models (barring SUPER) were considered to be important. These were used for further analysis, which included identification of candidate genes (CGs) and their annotation. A majority of these MTAs were novel. Only 70 of the 89 MTAs were assigned to individual chromosomes; the remaining 19 MTAs belonged to unassigned SNPs, for which chromosomes were not known. Seven MTAs were selected on the basis of minimum P value, number of models, number of environments and location on chromosomes with respect to QTLs reported earlier. These 7 MTAs, which included five main effect MTAs and two for epistatic interactions, were considered to be important for marker-assisted selection (MAS). The present study thus improved our understanding of the genetics of resistance against spot blotch in wheat and provided seven MTAs, which may be used for MAS after due validation.

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“…și D. sorokiniana [6,9]. Creșterea frecvenței de distribuție spațială, cât și a patogenității fungului D. sorokiniana este explicabilă prin prezența pigmentului de melanină în celulele fungului, care permite organismelor melanizate să existe în condiții extreme cu insolație crescută, uscăciune și temperaturi ridicate și, de asemenea, previne liza miceliului acestor organisme [4].…”

Section: Introducereunclassified

“…Modalitatea cea mai eficientă în gestionarea pierderilor cauzate de helmintosporioze la cereale constituie creșterea rezistenței gazdei. În menținerea sănătății ecosistemului precum și obținerea rezistenței durabile, de o importanță majoră se impun abordările genetice și ecologice [4,6,7,9]. Brunificarea frunzelor cauzată de B. sorokiniana determină randamente și pierderi de calitate semnificative în condițiile agroecologce calde și umede ale lumii.…”

Section: Introducereunclassified

Efectele genetice implicate în răspunsul grăului comun la filtratul de cultură Drechslera sorokiniana (SACC.) subram

Elena¹

2021

Genetics, Physiology and Plant Breeding

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Helminthosporiosis caused by the fungus Drechslera sorokiniana (Sacc.) causes significant crop and quality losses to Triticum aestivum L. in agroecological conditions with extreme humidity. Increasing the resistance is considered the most cost-effective and sustainable approach to disease control. The aim of this study was to determine the genetic effects involved in the inheritance of resistance, using the ge-netic model of character reproduction in descendants of wheat. Generations F1, F2, BCP1 and BCP2, de-scended from the mutual crossing of the parents Basarabeanca / Moldova 30 and Moldova 30 / Moldova 3 (P1 and P2) were evaluated for the response of callus characters to the action of D. sorokiniana culture filtrate on the medium Murashige Skoog. Fungal metabolites have decreased the effects of gene actions and epistatic interactions, but also their variance. The phenomenon corresponds to the decrease of callus indices. A great importance for the heredity of the character of the surface of the callus manifested the epistatic effects of additive-dominant (ad) type. In the case of callus biomass comparable to the mean val-ues were the a actions, but also the ad and dd epistatic effects. The predominant involvement of epistatic effects indicates the need for resistance selections to helminthosporiosis in late generations of wheat.

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Morphological and Pathogenic Variability in Bipolaris sorokiniana Causing Spot Blotch in Wheat (Triticum aestivum, T. durum, T. dicoccum) in India

Cited by 10 publications

References 7 publications

Efficacy of Plant Extracts on Morphology and Cultural Characteristics of <i>Bipolaris sorokiniana</i>, Causing Black Point Disease of Wheat in Bangladesh

Efficacy of Plant Extracts on Morphology and Cultural Characteristics of <i>Bipolaris sorokiniana</i>, Causing Black Point Disease of Wheat in Bangladesh

Genetics of spot blotch resistance in bread wheat (Triticum aestivum L.) using five models for GWAS

Efectele genetice implicate în răspunsul grăului comun la filtratul de cultură Drechslera sorokiniana (SACC.) subram

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Morphological and Pathogenic Variability in Bipolaris sorokiniana Causing Spot Blotch in Wheat (Triticum aestivum, T. durum, T. dicoccum) in India

Cited by 10 publications

References 7 publications

Efficacy of Plant Extracts on Morphology and Cultural Characteristics of &lt;i&gt;Bipolaris sorokiniana&lt;/i&gt;, Causing Black Point Disease of Wheat in Bangladesh

Efficacy of Plant Extracts on Morphology and Cultural Characteristics of &lt;i&gt;Bipolaris sorokiniana&lt;/i&gt;, Causing Black Point Disease of Wheat in Bangladesh

Genetics of spot blotch resistance in bread wheat (Triticum aestivum L.) using five models for GWAS

Efectele genetice implicate în răspunsul grăului comun la filtratul de cultură Drechslera sorokiniana (SACC.) subram

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Efficacy of Plant Extracts on Morphology and Cultural Characteristics of <i>Bipolaris sorokiniana</i>, Causing Black Point Disease of Wheat in Bangladesh

Efficacy of Plant Extracts on Morphology and Cultural Characteristics of <i>Bipolaris sorokiniana</i>, Causing Black Point Disease of Wheat in Bangladesh