Sheath blight development and yield loss on rice in different epidemiological conditions

Khoshkdaman, Maryam; Mousanejad, S.; Elahinia, S. A.; Ebadi, A.; Padasht-Dehkaei, Fereidoun

doi:10.1007/s42161-020-00653-9

Cited by 12 publications

(10 citation statements)

References 21 publications

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“…Some other studies point to higher yield loss even at the flowering stage (Sharma et al., 1990; Vanitha & Thangamani, 1996). The results were consistent with reports showed that significant yield loss (18.50%–20.77%) occurs at booting or flowering stage (Khoshkdaman et al., 2021).…”

Section: Discussionsupporting

confidence: 92%

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Quantification of yield losses with relation to sheath blight development at different growth stages in mega rice varieties of South Asia

Lore

Jain

Hunjan

et al. 2021

Journal of Phytopathology

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Quantification of grain yield losses in mega rice varieties of south Asia due to infection by the sheath blight pathogen (Rhizoctonia solani) at different growth stages was carried out in 2 years in Northern India. Pathogen inoculation was done at the tillering, booting and grain-filling stages of the crop under field conditions. The disease variables viz. disease severity, disease incidence, flag leaf infection and relative yield loss were determined on the mega varieties viz Swarna, Swarna Sub-1 and PR 122.The effect of crop growth stage at inoculation and varieties was more important for disease variables than for relative yield loss. Booting and tillering stages were the most critical for higher sheath blight development with the highest relative yield loss. Among the mega rice varieties Swarna and Swarna-Sub1, no significant difference was observed in all the disease variables and grain yield loss while the local variety PR 122 outperformed both mega varieties in disease variables and grain yield loss. PR 122 had the lowest yield losses due to low disease severity (14.22%-19.23%) during both years. All disease variables were positively correlated with relative yield losses.Regarding disease management strategies the focus should be on managing the disease initiation, particularly at the tillering and booting stages of the crop.

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Section: Discussionsupporting

confidence: 92%

“…The results were consistent with reports showed that significant yield loss (18.50%-20.77%) occurs at booting or flowering stage (Khoshkdaman et al, 2021).…”

Section: Sheath Blight Severity and Yield Losssupporting

confidence: 92%

Quantification of yield losses with relation to sheath blight development at different growth stages in mega rice varieties of South Asia

Lore

Jain

Hunjan

et al. 2021

Journal of Phytopathology

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“…Pusa Basmati-1, wild rice accession O. grandiglumis, and barley cv. NDB-1445 in control and R. solani infected samples at different time intervals (24 hpi [ 1 ], 48 hpi [ 2 ], 72 hpi [ 3 ], 96 hpi [ 4 ], and 120 hpi [ 5 ]). ( a ) Fold change in enzymatic activity of total phenol content.…”

Section: Figurementioning

confidence: 99%

“…The fungal pathogen Rhizoctonia solani has pathogenicity over a broad range of host plants. R. solani causes sheath blight (ShB) in rice and is responsible for up to 25% of yield losses [ 1 ]. This necrotic fungal pathogen has a considerable effect on the production of an extensive range of plants imperative to humanity, including the 15 largest food crops worldwide, and causes root rot disease in wheat and barley [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

“…The researchers’ intentions are to sort new rice genotypes with improved disease resistance and to improve yield potential using genomic and molecular information to shatter the rice yield plateau [ 10 ]. Few early studies attempted to look for the detail of the mode of rice infection by sheath blight pathogen, which can be further utilized for the conception of resistance mechanisms against R. solani [ 1 ]. R. solani isolates produce hydrolytic enzymes such as cellular cellulase, pectolytic, and protease enzymes which help in the invasion of the host’s primary line of defense [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

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Proteo-Molecular Investigation of Cultivated Rice, Wild Rice, and Barley Provides Clues of Defense Responses against Rhizoctonia solani Infection

Shamim

Sharma²,

Bisht³

et al. 2022

Bioengineering

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Rhizoctonia solani is a soil-borne fungus causing sheath blight disease in cereal crops including rice. Genetic resistance to sheath blight disease in cereal crops is not well understood in most of the host(s). Aside from this, a comparative study on the different hosts at the biochemical and proteomic level upon R. solani infection was not reported earlier. Here, we performed proteomic based analysis and studied defense pathways among cultivated rice (cv. Pusa Basmati-1), wild rice accession (Oryza grandiglumis), and barley (cv. NDB-1445) after inoculation with R. solani. Increased levels of phenol, peroxidase, and β-1, 3-glucanase were observed in infected tissue as compared to the control in all of the hosts. Wild rice accession O. grandiglumis showed a higher level of biochemical signals than barley cv. NDB 1445 and cultivated rice cv. Pusa Basmati-1. Using two-dimensional polyacrylamide gel electrophoresis (2D-PAGE) and mass spectrometry (MS), differently expressed proteins were also studied in control and after inoculation with R. solani. Wild rice accession O. grandiglumis induced a cysteine protease inhibitor and zinc finger proteins, which have defense functions and resistance against fungal pathogens. On the other hand, barley cv. NDB-1445 and cultivated rice cv. Pusa Basmati-1 mainly induce energy metabolism-related proteins/signals after inoculation with R. solani in comparison to wild rice accession O. grandiglumis. The present comprehensive study of R. solani interaction using three hosts, namely, Pusa Basmati-1 (cultivated rice), O. grandiglumis (wild rice), and NDB-1445 (barley) would interpret wider possibilities in the dissection of the protein(s) induced during the infection process. These proteins may further be correlated to the gene(s) and other related molecular tools that will help for the marker-assisted breeding and/or gene editing for this distressing disease among the major cereal crops.

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Selection of reference genes for RT-qPCR analysis of rice with Rhizoctonia solani infection and biocontrol PGPR/KSi application

et al. 2023

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Background: Rhizoctonia solani AG1 IA is an important pathogen of rice (Oryza sativa L.) that causes rice sheath blight (RSB). Since control of RSB by conventional measures has failed, novel strategies like application of plant growth-promoting rhizobacteria (PGPR) can be an e cient alternative.Method and Results: mRNA sequences of rice were retrieving from NCBI for candidate reference genes selction, and seven candidate reference genes (RGs), namely 18SrRNA, ACT1, GAPDH2, UBC5, RPS27, eIF4aand CYP28, were selected for their stability in real-time quantitative PCR (RT-qPCR). Different algorithms were exploited, Delta Ct, geNorm, NormFinder, BestKeeper, and Comprehensive ranking by RefFinder, to evaluate RT-qPCR of rice in tissues infected with R. solani and treated with the PGPR strains, Pseudomonas saponiphilia and Pseudomonas protegens, and potassium silicate (KSi) alone or in combination with each PGPR strain. RGs stability was affected by each treatment and treatment-speci c selection was approved and validated for nonexpressor of PR-1(NPR1) for each treatment. Conclusion: Overall, ACT1 was the most stable RG with R. solani infection alone, GAPDH2 with R. solani infection plus KSi, UBC5 with R. solani infection plus P. saponiphilia, and eIF4a with R. solani infection plus P. protegens. Both ACT1 and RPS27 were the most stable with the combination of KSi and P. saponiphilia, while PRS27 was the most stable with the combination of KSi and P. protegens 51. Pfa MW (2001) A new mathematical model for relative quanti cation in real-time RT-PCR. Nucleic acids research 29(9): e45-e45

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Sheath blight development and yield loss on rice in different epidemiological conditions

Cited by 12 publications

References 21 publications

Quantification of yield losses with relation to sheath blight development at different growth stages in mega rice varieties of South Asia

Quantification of yield losses with relation to sheath blight development at different growth stages in mega rice varieties of South Asia

Proteo-Molecular Investigation of Cultivated Rice, Wild Rice, and Barley Provides Clues of Defense Responses against Rhizoctonia solani Infection

Selection of reference genes for RT-qPCR analysis of rice with Rhizoctonia solani infection and biocontrol PGPR/KSi application

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