Identification and validation of sheath blight resistance in rice (<i>Oryza sativa</i>L.) cultivars against<i>Rhizoctonia solani</i>

Hossain, Kamal; Tze, Ong Shin; Nadarajah, Kalaivani K.; Jena, Kshirod K.; Bhuiyan, Atiqur Rahman; Ratnam, R Wickneswari V

doi:10.1080/07060661.2014.970577

Cited by 20 publications

(12 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Sheath blight (SB) caused by Rhizoctonia solani , is one of the most serious diseases of rice and recently caused large production losses in the Yangtze River region of China (Wang et al 2015; Dey et al 2016). R. solani is a broad-host range saprophyte, and there are no rice cultivars with complete immunity to SB (Eizenga et al 2002; Hossain et al 2014; Zhu et al 2014). Partial resistance exists in some rice cultivars and is conferred by polygenes encoded by quantitative trait loci (QTLs).…”

Section: Introductionmentioning

confidence: 99%

Amino acid substitutions in a polygalacturonase inhibiting protein (OsPGIP2) increases sheath blight resistance in rice

Chen

Zhang

et al. 2019

Rice

View full text Add to dashboard Cite

Background An economic strategy to control plant disease is to improve plant defense to pathogens by deploying resistance genes. Plant polygalacturonase inhibiting proteins (PGIPs) have a vital role in plant defense against phytopathogenic fungi by inhibiting fungal polygalacturonase (PG) activity. We previously reported that rice PGIP1 (OsPGIP1) inhibits PG activity in Rhizoctonia solani , the causal agent of rice sheath blight (SB), and is involved in regulating resistance to SB. Result Here, we report that OsPGIP2, the protein ortholog of OsPGIP1, does not possess PGIP activity; however, a few amino acid substitutions in a derivative of OsPGIP2, of which we provide support for L233F being the causative mutation, appear to impart OsPGIP2 with PG inhibition capability. Furthermore, the overexpression of mutated OsPGIP2 L233F in rice significantly increased the resistance of transgenic lines and decreased SB disease rating scores. OsPGIP2 L233F transgenic lines displayed an increased ability to reduce the tissue degradation caused by R. solani PGs as compared to control plants. Rice plants overexpressing OsPGIP2 L233F showed no difference in agronomic traits and grain yield as compared to controls, thus demonstrating its potential use in rice breeding programs. Conclusions In summary, our results provide a new target gene for breeding SB resistance through genome-editing or natural allele mining. Electronic supplementary material The online version of this article (10.1186/s12284-019-0318-6) contains supplementary material, which is available to authorized users.

show abstract

Section: Introductionmentioning

confidence: 99%

Amino acid substitutions in a polygalacturonase inhibiting protein (OsPGIP2) increases sheath blight resistance in rice

Chen

Zhang

et al. 2019

Rice

View full text Add to dashboard Cite

show abstract

“…The disease manifests initially as water soaked lesions on sheath of lower leaves and moves up the plant infecting both sheaths and leaves by joining the lesions ( Lee and Rush, 1983 ; Kumar et al, 2009 ; XiaoXing et al, 2013 ). Conventional methods of introducing resistance to disease involve selection breeding, molecular breeding ( XiaoXing et al, 2013 ; Hossain et al, 2014 ; Vasudevan et al, 2014 ) and development of transgenics through mapping and expressing different genes ( Datta et al, 2001 ; Kalpana et al, 2006 ; Yadav et al, 2015 ). While the conventional breeding techniques are constraint by requirement of long time, development of transgenics becomes a matter of acceptance and propagation in many countries ( Gewin, 2003 ).…”

Section: Introductionmentioning

confidence: 99%

Unraveling Aspects of Bacillus amyloliquefaciens Mediated Enhanced Production of Rice under Biotic Stress of Rhizoctonia solani

et al. 2016

View full text Add to dashboard Cite

Rhizoctonia solani is a necrotrophic fungi causing sheath blight in rice leading to substantial loss in yield. Excessive and persistent use of preventive chemicals raises human health and environment safety concerns. As an alternative, use of biocontrol agents is highly recommended. In the present study, an abiotic stress tolerant, plant growth promoting rhizobacteria Bacillus amyloliquefaciens (SN13) is demonstrated to act as a biocontrol agent and enhance immune response against R. solani in rice by modulating various physiological, metabolic, and molecular functions. A sustained tolerance by SN13 primed plant over a longer period of time, post R. solani infection may be attributed to several unconventional aspects of the plants’ physiological status. The prolonged stress tolerance observed in presence of SN13 is characterized by (a) involvement of bacterial mycolytic enzymes, (b) sustained maintenance of elicitors to keep the immune system induced involving non-metabolizable sugars such as turanose besides the known elicitors, (c) a delicate balance of ROS and ROS scavengers through production of proline, mannitol, and arabitol and rare sugars like fructopyranose, β-D-glucopyranose and myoinositol and expression of ferric reductases and hypoxia induced proteins, (d) production of metabolites like quinazoline and expression of terpene synthase, and (e) hormonal cross talk. As the novel aspect of biological control this study highlights the role of rare sugars, maintenance of hypoxic conditions, and sucrose and starch metabolism in B. amyloliquefaciens (SN13) mediated sustained biotic stress tolerance in rice.

show abstract

“…Currently, there is only one reported genome of an R. solani AG1-1A isolate from China ( 5 ). Here, we report the draft genome sequence of a Malaysian R. solani strain, 1802/KB (GenBank accession number KF312465), which was isolated from the diseased rice tissues of MR219 variety on paddy fields ( 7 ). MR219 is a popular rice variety in Malaysia, yet it is reported to be highly susceptible to sheath blight ( 8 ).…”

Section: Genome Announcementmentioning

confidence: 99%

Draft Genome Sequence of Rhizoctonia solani Anastomosis Group 1 Subgroup 1A Strain 1802/KB Isolated from Rice

et al. 2017

Self Cite

View full text Add to dashboard Cite

show abstract

Identification and validation of sheath blight resistance in rice (Oryza sativaL.) cultivars againstRhizoctonia solani

Cited by 20 publications

References 28 publications

Amino acid substitutions in a polygalacturonase inhibiting protein (OsPGIP2) increases sheath blight resistance in rice

Amino acid substitutions in a polygalacturonase inhibiting protein (OsPGIP2) increases sheath blight resistance in rice

Unraveling Aspects of Bacillus amyloliquefaciens Mediated Enhanced Production of Rice under Biotic Stress of Rhizoctonia solani

Draft Genome Sequence of Rhizoctonia solani Anastomosis Group 1 Subgroup 1A Strain 1802/KB Isolated from Rice

Contact Info

Product

Resources

About