Effects of Bacterial Leaf Blight Occurrence on Rice Yield and Grain Quality in Different Rice Growth Stage

Noh, Tae-Hwan; Lee, Du-Ku; Park, Jong Chul; Shim, Hyeong-Kwon; Choi, Man-Yeong; Kang, Mi-Hyung; Kim, Jae-Duk

doi:10.5423/rpd.2007.13.1.020

Cited by 42 publications

(34 citation statements)

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“…BLB is one of the disastrous diseases that lead to crop failure in tropical and temperate rice growing regions of the world (Mew, 1987;Khan et al, 2014). In Korea, BLB appeared as an emerging disease in past years, affecting yield and grain quality of rice (Noh et al, 2007). Various studies have been carried out related to disease management and control.…”

Section: Introductionmentioning

confidence: 99%

“…In Korea, these isolates have been grouped into five races (K1 to K5). However, the main focus has been concentrated on the K1, K2, K3, and K3a races (Noh et al, 2003;Jeung et al, 2006). Among these races, K1 effect is declining due to rice cultivars bearing Xa1 and Xa3 gens, whereas K2 and K3 races have increased their pathogenicity in Korea.…”

Section: Introductionmentioning

confidence: 99%

“…Among these races, K1 effect is declining due to rice cultivars bearing Xa1 and Xa3 gens, whereas K2 and K3 races have increased their pathogenicity in Korea. In particular, recently evolved race K3a caused a severe damage in the southwestern areas of Korea (Noh et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

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Preliminary genome-wide association mapping of rice bacterial leaf blight resistance loci using major Korean races of Xoo (Xanthomonas oryzae)

Ali¹,

Yoon-Hyun²,

Noh³

et al. 2017

Plant Omics

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Bacterial leaf blight (BLB), caused by X. oryzae pv. oryzae (Xoo), is one of the most destructive diseases of rice due to its high epidemic potential. Understanding BLB resistance at a genetic level is important to further improve the rice breeding that provides one of the best approaches to control BLB disease. In the present investigation, a collection of 96 accessions was used in the genomewide association study (GWAS) for BLB resistance loci against four Korean races of Xoo that were represented by the prevailing BLB isolates under Xoo differential system. The results of the bioassay using a selected set of 96 accessions showed that a large number of accessions (93.75%) were resistant to K1 race, while the least number of accessions (34.37%) resisted K3a race. For races K2 and K3, the resistant germplasm proportion remained between 66.67 to 70.83%. The genotypic data produced SNP matrix for a total of 293,379 SNPs. After imputation the missing data was removed, which exhibited 34,724 SNPs for association analysis. GWAS results showed strong signals of association at a threshold of [-log10(P-value)] more than 5 (K1 and K2) and more than 4 (K3 and K3a) for nine of the 39 SNPs, which are plausible candidate loci of resistance genes. These SNP loci were positioned on rice chromosome 2, 9, and 11 for K1 and K2 races, whereas on chromosome 4, 6, 11, and 12 for K3 and K3a races. The significant loci detected have also been illustrated, NBS-LRR type disease resistance protein, SNARE domain containing protein, Histone deacetylase 19, NADP-dependent oxidoreductase, and other expressed and unknown proteins. Our results provide a better understanding of the distribution of genetic variation of BLB resistance to Korean pathogen races and breeding of resistant rice cultivars.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Preliminary genome-wide association mapping of rice bacterial leaf blight resistance loci using major Korean races of Xoo (Xanthomonas oryzae)

Ali¹,

Yoon-Hyun²,

Noh³

et al. 2017

Plant Omics

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“…of Blight Inoculated Rice Lines and Varieties the plant shows abnormality from the ideal plant characteristics it can be assumed that the plant will not give expected yield. Also, percent infected leaf area and growth stage directly affect the yield production of rice [7]. Moreover, BLB disease clearly shows this kind of phenotypic symptoms where all the plant become diseased and burned and show less effective tiller number with less grain production [11,12].…”

Section: Introductionmentioning

confidence: 99%

“…BLB can reduce grain production by 20-50% [3] by affecting the panicle emergence and grain filling. The yield loss can go up to 80% if severely affected which depends on the crop stage, environmental condition and susceptibility [4][5][6][7]. Besides different control measures, development of resistant cultivar by breeding technique is the best costeffective method to approach the disease [8,9].…”

Section: Introductionmentioning

confidence: 99%

Measurement of Phenotypic Variation for Control and Bacterial Leaf Blight Inoculated Rice Lines and Varieties

Mubassir¹

2016

BIO

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Bacterial leaf blight (BLB) caused by Xanthomonas oryzae pv. oryzae is a devastating disease of rice, the staple food crop of Bangladesh. Under field condition the disease significantly damages the phenotypic characteristics of the plants affecting the yield. An assessment of the phenotypic variations due to the disease in 10 rice lines and 17 rice varieties were studied at the maximum tillering stage in both natural and induced epiphytotic conditions. Along with the indigenous cultivars the test materials including the check resistant and susceptible cultivars were collected from IRRI. Significant differences in both plant height and the number of effective tillers were recorded in the check and inoculated lines and varieties. Among the rice lines, RC222 resulted the maximum reduction in plant height (3.18%) in the inoculated plants whereas RC217 yielded the minimum reduction of 1.27%. Among the rice varieties, Binadhan-8 and Binadhan-10 showed the maximum reduction in plant height (11.43% and 18.22% respectively) for the inoculated plants where IRBB21, IRBB65 and Kumragur resulted 0% reduction. The number of effective tiller among the rice lines, RC251 yielded the maximum reduction of 26.19% in the inoculated plants whereas RC192 showed as minimum as 4.16% reduction. For rice varieties, Binadhan-8, Binadhan-10 and BR-11 yielded the maximum reduction of 52.62%, 50.07% and 50.06% while IRBB21, IRBB65 and Kumragur showed 0 % reduction. The findings of such phenotypic variations may contribute significantly to the selection of best lines and further research to develop the disease free commercial varieties of rice against the disease.

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Sustainable Rice Production Under Biotic and Abiotic Stress Challenges

Iqbal

Zia-ul-Qamar

Yousaf

et al. 2023

Sustainable Agriculture in the Era of the OMICs Revolution

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Effects of Bacterial Leaf Blight Occurrence on Rice Yield and Grain Quality in Different Rice Growth Stage

Cited by 42 publications

References 4 publications

Preliminary genome-wide association mapping of rice bacterial leaf blight resistance loci using major Korean races of Xoo (Xanthomonas oryzae)

Preliminary genome-wide association mapping of rice bacterial leaf blight resistance loci using major Korean races of Xoo (Xanthomonas oryzae)

Measurement of Phenotypic Variation for Control and Bacterial Leaf Blight Inoculated Rice Lines and Varieties

Sustainable Rice Production Under Biotic and Abiotic Stress Challenges

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