ArticleBMC plant biology2014
Ectoparasitic growth of Magnaporthe on barley triggers expression of the putative barley wax biosynthesis gene CYP96B22 which is involved in penetration resistance.
Article in BMC plant biology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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17 citing papers in PubMed, 42 citations in OpenAlex.
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- Genetic variation in ZmWAX2 confers maize resistance to Fusarium verticillioides.Plant biotechnology journal · 2023Article
- Role of Cytochrome P450 Enzyme in Plant Microorganisms' Communication: A Focus on Grapevine.International journal of molecular sciences · 2023Review
- Receptor-mediated nonhost resistance in plants.Essays in biochemistry · 2022Review
- Gene deletion and constitutive expression of the pectate lyase gene 1 (MoPL1) lead to diminished virulence of Magnaporthe oryzae.Journal of microbiology (Seoul, Korea) · 2022Article
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- Genome-Wide Characterization of Jasmonates Signaling Components Reveals the Essential Role of ZmCOI1a-ZmJAZ15 Action Module in Regulating Maize Immunity to Gibberella Stalk Rot.International journal of molecular sciences · 2021Article
- Update on Cuticular Wax Biosynthesis and Its Roles in Plant Disease Resistance.International journal of molecular sciences · 2020Review
- A comparative analysis of nonhost resistance across the two Triticeae crop species wheat and barley.BMC plant biology · 2017Article
- Identification and VIGS-based characterization of Bx1 ortholog in rye (Secale cereale L.).PloS one · 2017Article
- WAX INDUCER1 (HvWIN1) transcription factor regulates free fatty acid biosynthetic genes to reinforce cuticle to resist Fusarium head blight in barley spikelets.Journal of experimental botany · 2016Article
- Magnaporthe oryzae effectors MoHEG13 and MoHEG16 interfere with host infection and MoHEG13 counteracts cell death caused by Magnaporthe-NLPs in tobacco.Plant cell reports · 2016Article
- BRITTLE SHEATH1 encoding OsCYP96B4 is involved in secondary cell wall formation in rice.Plant cell reports · 2016Article
- In vivo chemical and structural analysis of plant cuticular waxes using stimulated Raman scattering microscopy.Plant physiology · 2015Article
- Abscisic acid negatively interferes with basal defence of barley against Magnaporthe oryzae.BMC plant biology · 2015Article
- Evolutionary conserved function of barley and Arabidopsis 3-KETOACYL-CoA SYNTHASES in providing wax signals for germination of powdery mildew fungi.Plant physiology · 2014Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundHead blast caused by the fungal plant pathogen Magnaporthe oryzae is an upcoming threat for wheat and barley cultivation. We investigated the nonhost response of barley to an isolate of the Magnaporthe species complex which is pathogenic on Pennisetum spp. as a potential source for novel resistance traits.
resultsArray experiments identified a barley gene encoding a putative cytochrome P450 monooxygenase whose transcripts accumulate to a higher concentration in the nonhost as compared to the host interaction. The gene clusters within the CYP96 clade of the P450 plant gene family and is designated as CYP96B22. Expression of CYP96B22 was triggered during the ectoparasitic growth of the pathogen on the outside of the leaf. Usage of a fungicidal treatment and a Magnaporthe mutant confirmed that penetration was not necessary for this early activation of CYP96B22. Transcriptional silencing of CYP96B22 using Barley stripe mosaic virus led to a decrease in penetration resistance of barley plants to Magnaporthe host and nonhost isolates. This phenotype seems to be specific for the barley-Magnaporthe interaction, since penetration of the adapted barley powdery mildew fungus was not altered in similarly treated plants.
conclusionTaken together our results suggest a cross-talk between barley and Magnaporthe isolates across the plant surface. Since members of the plant CYP96 family are known to be involved in synthesis of epicuticular waxes, these substances or their derivatives might act as signal components. We propose a functional overlap of CYP96B22 in the execution of penetration resistance during basal and nonhost resistance of barley against different Magnaporthe species.
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