scholarly journals Induced Systemic Resistance against Botrytis cinerea by Bacillus cereus AR156 through a JA/ET- and NPR1-Dependent Signaling Pathway and Activates PAMP-Triggered Immunity in Arabidopsis

2017 ◽  
Vol 8 ◽  
Author(s):  
Pingping Nie ◽  
Xia Li ◽  
Shune Wang ◽  
Jianhua Guo ◽  
Hongwei Zhao ◽  
...  
Keyword(s):  
Bacillus Cereus ◽  
Botrytis Cinerea ◽  
Signaling Pathway ◽  
Induced Systemic Resistance ◽  
Systemic Resistance ◽  
Dependent Signaling Pathway

Dimethyl disulfide is an induced systemic resistance elicitor produced by Bacillus cereus C1L

2012 ◽  
Vol 68 (9) ◽  
pp. 1306-1310 ◽  
Author(s):  
Chien-Jui Huang ◽  
Jia-Fang Tsay ◽  
Shu-Yu Chang ◽  
Hsiu-Ping Yang ◽  
Wen-Shi Wu ◽  
...  
Keyword(s):  
Bacillus Cereus ◽  
Induced Systemic Resistance ◽  
Dimethyl Disulfide ◽  
Systemic Resistance

scholarly journals Bacillus cereus AR156 primes induced systemic resistance by suppressing miR825/825* and activating defense-related genes in Arabidopsis

2016 ◽  
Vol 58 (4) ◽  
pp. 426-439 ◽  
Author(s):  
Dongdong Niu ◽  
Jing Xia ◽  
Chunhao Jiang ◽  
Beibei Qi ◽  
Xiaoyu Ling ◽  
...  
Keyword(s):  
Bacillus Cereus ◽  
Induced Systemic Resistance ◽  
Systemic Resistance

scholarly journals Function of miR825 and miR825* as Negative Regulators in Bacillus cereus AR156-elicited Systemic Resistance to Botrytis cinerea in Arabidopsis thaliana

2019 ◽  
Vol 20 (20) ◽  
pp. 5032 ◽  
Author(s):  
Pingping Nie ◽  
Chen Chen ◽  
Qian Yin ◽  
Chunhao Jiang ◽  
Jianhua Guo ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Bacillus Cereus ◽  
Botrytis Cinerea ◽  
Target Genes ◽  
Interactive Effect ◽  
Defense Responses ◽  
Northern Blotting ◽  
Systemic Resistance ◽  
Negative Regulators ◽  
Callose Deposition

Small RNAs function to regulate plant defense responses to pathogens. We previously showed that miR825 and miR825* downregulate Bacillus cereus AR156 (AR156)-triggered systemic resistance to Pseudomonassyringae pv. tomato DC3000 in Arabidopsis thaliana (Arabidopsis). Here, Northern blotting revealed that miR825 and miR825* were more strongly downregulated in wild type Arabidopsis Col-0 (Col-0) plants pretreated with AR156 than in nontreated plants upon Botrytis cinerea (B. cinerea) B1301 infection. Furthermore, compared with Col-0, transgenic plants with attenuated miR825 and miR825* expression were more resistant to B. cinerea B1301, yet miR825- and miR825*-overexpressing (OE) plants were more susceptible to the pathogen. With AR156 pretreatment, the transcription of four defense-related genes (PR1, PR2, PR5, and PDF1.2) and cellular defense responses (hydrogen peroxide production and callose deposition) were faster and stronger in miR825 and miR825* knockdown lines but weaker in their OE plants than in Col-0 plants upon pathogen attack. Also, AR156 pretreatment caused stronger phosphorylation of MPK3 and MPK6 and expression of FRK1 and WRKY53 genes upon B. cinerea B1301 inoculation in miR825 and miR825* knockdown plants than in Col-0 plants. Additionally, the assay of agrobacterium-mediated transient co-expression in Nicotiana benthamiana confirmed that AT5G40910, AT5G38850, AT3G04220, and AT5G44940 are target genes of miR825 or miR825*. Compared with Col-0, the target mutant lines showed higher susceptibility to B. cinerea B1301, while still expressing AR156-triggered induced systemic resistance (ISR). The two-way analysis of variance (ANOVA) revealed a significant (P < 0.01) interactive effect of treatment and genotype on the defense responses. Hence, miR825 and miR825*act as negative regulators of AR156-mediated systemic resistance to B. cinerea B1301 in Arabidopsis.

Effects of postharvest methyl jasmonate treatments against Botrytis cinerea on Geraldton waxflower (Chamelaucium uncinatum)

2006 ◽  
Vol 46 (5) ◽  
pp. 717 ◽  
Author(s):  
J. X. Eyre ◽  
J. Faragher ◽  
D. C. Joyce ◽  
P. R. Franz
Keyword(s):  
Methyl Jasmonate ◽  
Botrytis Cinerea ◽  
Induced Systemic Resistance ◽  
Floral Organ ◽  
Ethylene Biosynthesis ◽  
Systemic Resistance ◽  
Meja Treatment ◽  
Flower Abscission ◽  
Chamelaucium Uncinatum

Cut Geraldton waxflower (Chamelaucium uncinatum Schauer) flowers are often infected with Botrytis cinerea. Release of infection from quiescence can cause ethylene production by invaded host tissues and result in flower abscission. Postharvest floral organ abscission is a major problem for the commercial waxflower industry. Methyl jasmonate (MeJA) occurs naturally in plant tissue and has a signalling role in eliciting induced systemic resistance against disease. MeJA treatments have been shown to suppress B. cinerea infecting cut rose flowers. The present experiments investigated the potential of exogenous MeJA treatments for B. cinerea management on harvested waxflower. MeJA treatments of 10 and 100 µL liquid MeJA/L of air applied to cv. Purple Pride and 1 µL MeJA/L to cv. Mullering Brook gave reductions in disease severity for uninoculated stems. However, concentrations of 100 µL MeJA/L applied to Purple Pride in addition to 1 and 10 µL MeJA/L applied to Mullering Brook increased the incidence of floral organ fall. Flower abscission upon treatment with MeJA may be due to induced systemic resistance-associated upregulation of ethylene biosynthesis. MeJA treatments had no direct effect on B. cinerea hyphal elongation in vitro. Collectively, these results show that while MeJA treatment may elicit defence in waxflower against Botrytis, the chemical also causes floral organ fall. Thus, exogenous MeJA treatments do not have potential for B. cinerea management on harvested waxflower.

scholarly journals A Novel Signaling Pathway Controlling Induced Systemic Resistance in Arabidopsis

1998 ◽  
Vol 10 (9) ◽  
pp. 1571-1580 ◽  
Author(s):  
Corné M. J. Pieterse ◽  
Saskia C. M. van Wees ◽  
Johan A. van Pelt ◽  
Marga Knoester ◽  
Ramon Laan ◽  
...  
Keyword(s):  
Signaling Pathway ◽  
Induced Systemic Resistance ◽  
Systemic Resistance

scholarly journals Induction of systemic resistance in tomato by the autochthonous phylloplane resident Bacillus cereus

2006 ◽  
Vol 41 (8) ◽  
pp. 1247-1252 ◽  
Author(s):  
Bernardo de Almeida Halfeld-Vieira ◽  
José Roberto Vieira Júnior ◽  
Reginaldo da Silva Romeiro ◽  
Harllen Sandro Alves Silva ◽  
Maria Cristina Baracat-Pereira
Keyword(s):  
Bacillus Cereus ◽  
Induced Resistance ◽  
Pseudomonas Syringae ◽  
Induced Systemic Resistance ◽  
Resistance Mechanism ◽  
Systemic Resistance ◽  
Tomato Plants

The objective of this work was to verify if the induced resistance mechanism is responsible for the capacity of a phylloplane resident bacteria (Bacillus cereus), isolated from healthy tomato plants, to control several diseases of this crop. A strain of Pseudomonas syringae pv. tomato was used as the challenging pathogen. The absence of direct antibiosis of the antagonist against the pathogen, the significant increase in peroxidases activity in tomato plants exposed to the antagonist and then inoculated with the challenging pathogen, as well as the character of the protection, are evidences wich suggest that biocontrol efficiency presented by the antagonist in previous works might be due to induced systemic resistance (ISR).

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