Serotonin is ubiquitous across all forms of life and functions in responses to biotic and abiotic *** rice,the conversion of tryptamine to serotonin is catalyzed by Sekiguchi lesion(SL).Previous studies have identifie...
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Serotonin is ubiquitous across all forms of life and functions in responses to biotic and abiotic *** rice,the conversion of tryptamine to serotonin is catalyzed by Sekiguchi lesion(SL).Previous studies have identified an sl mutation(a null mutation of SL)in several rice varieties and confirmed its increase of resistance and cell ***,a systematic understanding of the reprogrammed cellular processes causing cell death and resistance is *** performed a multi-omics analysis to clarify the fundamental mechanisms at the protein,gene transcript,and metabolite *** found that cell death and magnaporthe oryzae(***)infection of the sl-mH-1 mutant activated plant hormone signal transduction involving salicylic acid(SA),jasmonic acid(JA),and abscisic acid(ABA)in multiple regulatory *** characterized the dynamic changes of several key hormone levels during disease progression and under the cell death conditions and showed that SA and JA positively regulated rice cell death and disease ***-overexpressing lines confirmed that the sl-mH-1 mutant positively regulated rice resistance to *** studies shed light on cell death and facilitate further mechanistic dissection of programmed cell death in rice.
mitogen-activated protein kinase（mAPK） cascades play central roles in response to biotic and abiotic ***,the mechanisms by which various mAPK members regulate the plant immune response in rice remain *** this articl...
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mitogen-activated protein kinase（mAPK） cascades play central roles in response to biotic and abiotic ***,the mechanisms by which various mAPK members regulate the plant immune response in rice remain *** this article,to characterize the mechanisms,the knock-out and overexpression mutants of OsmPK15 were constructed and the disease resistance was investigated under the various fungal and bacterial *** knock-out mutant of OsmPK15 resulted in the constitutive expression of pathogenesis-related（PR） genes,increased accumulation of reactive oxygen species（ROS） triggered by the pathogen-associated molecular pattern（PAmP） elicitor chitin,and significantly enhanced the disease resistance to different races of *** and Xanthomonas oryzae ***（Xoo）,which cause the rice blast and bacterial blight diseases,*** contrary,the expression of PR genes and ROS were down-regulated in the OsmPK15-overexpressing（OsmPK15-OE） ***,phytohormones such as salicylic acid（SA） and jasmonic acid（JA） were accumulated in the mpk15 mutant lines but decreased in the OsmPK15-OE *** expression of SA-and JA-pathway associated genes were significantly upregulated in the mpk15 mutant,whereas it was down regulated in the OsmPK15-OE *** conclude that 0 smPK15 may negatively regulate the disease resistance through modulating SA-and JA-mediated signaling pathway.
Short-chain acyl-CoA dehydrogenase(Scad) mediated β-oxidation serves as the fastest route for generating essential energies required to support the survival of organisms under stress or *** this study,we identified t...
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Short-chain acyl-CoA dehydrogenase(Scad) mediated β-oxidation serves as the fastest route for generating essential energies required to support the survival of organisms under stress or *** this study,we identified three putative SCAD genes in the genome of globally destructive rice blast pathogen magnaporthe oryzae,named as moSCAD1,moSCAD1,and *** elucidate their function,we deployed targeted gene deletion strategy to investigate individual and the combined influence of moSCAD genes on growth,stress tolerance,conidiation and pathogenicity of the rice blast ***,localization and co-localization results obtained from this study showed that moScad1 localizes to the peroxisome and endoplasmic reticulum(ER),moScad2 localize exclusively to the mitochondria while moScad3 localize partially to mitochondria and peroxisome during all developmental stages of *** mutants showed they are essential in ER-β-*** observation showed that a minimal but significant growth reduction was caused in the deletion mutants Δmoscad1 andΔmoscad2,while,growth characteristics exhibited by the deletion mutant Δmoscad3 was similar with the wild-type ***,we observed that deletion of moSCAD2 resulted in drastic reduction in conidiation,delayed germination,triggered the development of abnormal appressorium and suppressed host penetration and colonization efficiencies of the Δmoscad1 *** study provides first material evidence confirming the possible existence of ER β-oxidation pathway in *** also infer that mitochondria β-oxidation rather than peroxisomal and ER β-oxidation play an essential role in the vegetative growth,conidiation,appressorial morphogenesis and progression of pathogenesis in ***.
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