Gene network mediated by WRKY13 to regulate resistance against sheath infecting fungi in rice (Oryza sativa L.)

Jimmy, John Lilly; Babu, Subramanian

doi:10.1016/j.plantsci.2018.12.017

Cited by 37 publications

(12 citation statements)

References 37 publications

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“…Resistance to C. beticola in sugar beet and to F. verticillioides in maize has been attributed to the JA/ET signalling pathway while the role of ABA is not well understood for these pathosystems (Schmidt et al 2008;Lanubile et al 2014;Vaughan et al 2014Vaughan et al , 2016. Moreover, overexpression of WRKY13 in rice generates partial resistance against S. oryzae (Lilly and Subramanian 2019) which, in high concentrations, blocks the JA-pathway and the abiotic stress response (Qiu et al 2007;Xiao et al 2013; De Vleesschauwer et al 2014).…”

Section: Discussionmentioning

confidence: 99%

Auxin, abscisic acid and jasmonate are the central players in rice sheath rot caused by Sarocladium oryzae and Pseudomonas fuscovaginae

Peeters

Ameye

Demeestere

et al. 2020

Preprint

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Sheath rot is an emerging rice disease that causes severe yield losses worldwide. The main causal agents are the toxin producers Sarocladium oryzae and Pseudomonas fuscovaginae. The fungus S. oryzae produces helvolic acid and cerulenin and the bacterium P. fuscovaginae produces cyclic lipopeptides. Helvolic acid and the lipopeptide, fuscopeptin, inhibit membrane-bound H+-ATPase pumps in the rice plant. To manage rice sheath rot, a better understanding of the host response and virulence strategies of the pathogens is required. This study investigated the interaction of the sheath rot pathogens with their host and the role of their toxins herein. Japonica rice was inoculated with high- and low-helvolic acid-producing S. oryzae isolates or with P. fuscovaginae wild type and fuscopeptin mutant strains. During infection, cerulenin, helvolic acid and the phytohormones abscisic acid, jasmonate, auxin and salicylic acid were quantified in the sheath. In addition, disease severity and grain yield parameters were assessed. Rice plants responded to high-toxin-producing S. oryzae and P. fuscovaginae strains with an increase in abscisic acid, jasmonate and auxin levels. We conclude that, for both pathogens, toxins play a core role during sheath rot infection. S. oryzae and P. fuscovaginae interact with their host in a similar way. This may explain why both sheath rot pathogens cause very similar symptoms despite their different nature.

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Section: Discussionmentioning

confidence: 99%

Auxin, abscisic acid and jasmonate are the central players in rice sheath rot caused by Sarocladium oryzae and Pseudomonas fuscovaginae

Peeters

Ameye

Demeestere

et al. 2020

Preprint

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“…The JAZ and ERF TFs are involved in the JA and ethylene signalling pathways, respectively [72,73]. Consistently, these WRKY genes are involved in ABA-mediated signalling pathway and the cross-talk among pathways that are mediated by different hormones [74,75,76,77].…”

Section: Resultsmentioning

confidence: 98%

“…Similarly, OsWRKY70 , which is up-regulated under cold stress, is related to cold tolerance in three cold-tolerant genotypes [26]. Moreover, OsWRKY24 and OsWRKY71 are both involved in ABA-dependent pathways that are related to cold [74,81,82] and oxidative stress response [83], and are in network with OsWRKY108 and a TIFY TF encoding gene, which is involved in JA, ethylene, and ABA signalling [75].…”

Section: Resultsmentioning

confidence: 99%

A Meta-Analysis of Comparative Transcriptomic Data Reveals a Set of Key Genes Involved in the Tolerance to Abiotic Stresses in Rice

Buti

Baldoni

Formentin

et al. 2019

IJMS

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Several environmental factors, such as drought, salinity, and extreme temperatures, negatively affect plant growth and development, which leads to yield losses. The tolerance or sensitivity to abiotic stressors are the expression of a complex machinery involving molecular, biochemical, and physiological mechanisms. Here, a meta-analysis on previously published RNA-Seq data was performed to identify the genes conferring tolerance to chilling, osmotic, and salt stresses, by comparing the transcriptomic changes between tolerant and susceptible rice genotypes. Several genes encoding transcription factors (TFs) were identified, suggesting that abiotic stress tolerance involves upstream regulatory pathways. A gene co-expression network defined the metabolic and signalling pathways with a prominent role in the differentiation between tolerance and susceptibility: (i) the regulation of endogenous abscisic acid (ABA) levels, through the modulation of genes that are related to its biosynthesis/catabolism, (ii) the signalling pathways mediated by ABA and jasmonic acid, (iii) the activity of the “Drought and Salt Tolerance” TF, involved in the negative regulation of stomatal closure, and (iv) the regulation of flavonoid biosynthesis by specific MYB TFs. The identified genes represent putative key players for conferring tolerance to a broad range of abiotic stresses in rice; a fine-tuning of their expression seems to be crucial for rice plants to cope with environmental cues.

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“…Ancient gene transfer events were considered as the origin of these non-plant WRKYs based on distribution pattern analysis [11]. Numerous WRKY TFs have been experimentally revealed in various plant species, including (Arabidopsis thaliana) [12], sugarcane (Saccharum spontaneum) [13], barley (Hordeum vulgare) [14], rice (Oryza sativa) [15], physic nut (Jatropha curcas) [16], maize (Zea mays) [17], wheat (Triticum aestivum) [18], cotton (Gossypium hirsutum) [19] and so on (Table 1).…”

Section: Classification and Diversification Of Wrky Genes Familymentioning

confidence: 99%

Transcription Factors in Plant Stress Responses: Challenges and Potential for Sugarcane Improvement

Javed

Shabbir

Ali

et al. 2020

Plants

150

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Increasing vulnerability of crops to a wide range of abiotic and biotic stresses can have a marked influence on the growth and yield of major crops, especially sugarcane (Saccharum spp.). In response to various stresses, plants have evolved a variety of complex defense systems of signal perception and transduction networks. Transcription factors (TFs) that are activated by different pathways of signal transduction and can directly or indirectly combine with cis-acting elements to modulate the transcription efficiency of target genes, which play key regulators for crop genetic improvement. Over the past decade, significant progresses have been made in deciphering the role of plant TFs as key regulators of environmental responses in particular important cereal crops; however, a limited amount of studies have focused on sugarcane. This review summarizes the potential functions of major TF families, such as WRKY, NAC, MYB and AP2/ERF, in regulating gene expression in the response of plants to abiotic and biotic stresses, which provides important clues for the engineering of stress-tolerant cultivars in sugarcane.

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Gene network mediated by WRKY13 to regulate resistance against sheath infecting fungi in rice (Oryza sativa L.)

Cited by 37 publications

References 37 publications

Auxin, abscisic acid and jasmonate are the central players in rice sheath rot caused by Sarocladium oryzae and Pseudomonas fuscovaginae

Auxin, abscisic acid and jasmonate are the central players in rice sheath rot caused by Sarocladium oryzae and Pseudomonas fuscovaginae

A Meta-Analysis of Comparative Transcriptomic Data Reveals a Set of Key Genes Involved in the Tolerance to Abiotic Stresses in Rice

Transcription Factors in Plant Stress Responses: Challenges and Potential for Sugarcane Improvement

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