Expression of a pea disease resistance response gene in the potato cultivar Shepody

1993 ◽  
Vol 70 (9) ◽  
pp. 635-647 ◽  
Author(s):  
Ming-Mei Chang ◽  
Chin C. Chiang ◽  
Mark W. Martin ◽  
Lee A. Hadwiger
Keyword(s):  
Disease Resistance ◽  
Potato Cultivar ◽  
Response Gene ◽  
Resistance Response

The gene coding for the major birch pollen allergen Betv1, is highly homologous to a pea disease resistance response gene.

1989 ◽  
Vol 8 (7) ◽  
pp. 1935-1938 ◽  
Author(s):  
H. Breiteneder ◽  
K. Pettenburger ◽  
A. Bito ◽  
R. Valenta ◽  
D. Kraft ◽  
...  
Keyword(s):  
Disease Resistance ◽  
Birch Pollen ◽  
Pollen Allergen ◽  
Response Gene ◽  
Resistance Response ◽  
Gene Coding ◽  
Birch Pollen Allergen

scholarly journals Pseudomonas syringae Effector AvrPphB Suppresses AvrB-Induced Activation of RPM1 but Not AvrRpm1-Induced Activation

2015 ◽  
Vol 28 (6) ◽  
pp. 727-735 ◽  
Author(s):  
Andrew R. Russell ◽  
Tom Ashfield ◽  
Roger W. Innes
Keyword(s):  
Disease Resistance ◽  
Protein Kinase ◽  
Molecular Mechanism ◽  
Pseudomonas Syringae ◽  
Hypersensitive Response ◽  
Hypersensitive Resistance ◽  
Nicotiana Glutinosa ◽  
Resistance Response ◽  
Interacting Protein ◽  
Soybean Plants

The Pseudomonas syringae effector AvrB triggers a hypersensitive resistance response in Arabidopsis and soybean plants expressing the disease resistance (R) proteins RPM1 and Rpg1b, respectively. In Arabidopsis, AvrB induces RPM1-interacting protein kinase (RIPK) to phosphorylate a disease regulator known as RIN4, which subsequently activates RPM1-mediated defenses. Here, we show that AvrPphB can suppress activation of RPM1 by AvrB and this suppression is correlated with the cleavage of RIPK by AvrPphB. Significantly, AvrPphB does not suppress activation of RPM1 by AvrRpm1, suggesting that RIPK is not required for AvrRpm1-induced modification of RIN4. This observation indicates that AvrB and AvrRpm1 recognition is mediated by different mechanisms in Arabidopsis, despite their recognition being determined by a single R protein. Moreover, AvrB recognition but not AvrRpm1 recognition is suppressed by AvrPphB in soybean, suggesting that AvrB recognition requires a similar molecular mechanism in soybean and Arabidopsis. In support of this, we found that phosphodeficient mutations in the soybean GmRIN4a and GmRIN4b proteins are sufficient to block Rpg1b-mediated hypersensitive response in transient assays in Nicotiana glutinosa. Taken together, our results indicate that AvrB and AvrPphB target a conserved defense signaling pathway in Arabidopsis and soybean that includes RIPK and RIN4.

scholarly journals Pea–Fusarium solani Interactions Contributions of a System Toward Understanding Disease Resistance

2008 ◽  
Vol 98 (4) ◽  
pp. 372-379 ◽  
Author(s):  
Lee A. Hadwiger
Keyword(s):  
Immune Response ◽  
Transcription Factor ◽  
Disease Resistance ◽  
Fusarium Solani ◽  
Nonhost Resistance ◽  
Chromatin Conformation ◽  
Resistance Response ◽  
Resistance Components ◽  
Pathogenesis Related ◽  
Molecular Aspects

This mini-review points to the usefulness of the pea–Fusarium solani interaction in researching the biochemical and molecular aspects of the nonhost resistance components of peas. This interaction has been researched to evaluate the resistance roles of the phytoalexin, pisatin, the cuticle barrier, and the activation of the nonhost resistance response. Concurrently, evaluations of associated signaling processes and the tools possessed by the pathogen to contend with host obstacles were included. The properties of some pathogenesis-related genes of pea and their regulation and contribution to resistance are discussed. A proposed action of two biotic elicitors on both chromatin conformation and the architectural transcription factor, HMG A, is presented and includes time lines of events within the host immune response.

scholarly journals Effects of Laccaria bicolor on Gene Expression of Populus trichocarpa Root under Poplar Canker Stress

2021 ◽  
Vol 7 (12) ◽  
pp. 1024
Author(s):  
Fengxin Dong ◽  
Yihan Wang ◽  
Ming Tang
Keyword(s):  
Gene Expression ◽  
Disease Resistance ◽  
Plant Disease Resistance ◽  
Mycorrhizal Fungi ◽  
Populus Trichocarpa ◽  
Gene Expression Pattern ◽  
Oxygen Metabolism ◽  
Resistance Response ◽  
Expression Of Genes ◽  
Plant Pathogen Interaction

Poplars can be harmed by poplar canker. Inoculation with mycorrhizal fungi can improve the resistance of poplars to canker, but the molecular mechanism is still unclear. In this study, an aseptic inoculation system of L. bicolor–P. trichocarpa–B. dothidea was constructed, and transcriptome analysis was performed to investigate regulation by L. bicolor of the expression of genes in the roots of P. trichocarpa during the onset of B. dothidea infection, and a total of 3022 differentially expressed genes (DEGs) were identified. Weighted correlation network analysis (WGCNA) was performed on these DEGs, and 661 genes’ expressions were considered to be affected by inoculation with L. bicolor and B. dothidea. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses showed that these 661 DEGs were involved in multiple pathways such as signal transduction, reactive oxygen metabolism, and plant-pathogen interaction. Inoculation with L. bicolor changed the gene expression pattern of the roots, evidencing its involvement in the disease resistance response of P. trichocarpa. This research reveals the mechanism of L. bicolor in inducing resistance to canker of P. trichocarpa at the molecular level and provides a theoretical basis for the practical application of mycorrhizal fungi to improve plant disease resistance.

scholarly journals A 2′-O-Methyltransferase Responsible for Transfer RNA Anticodon Modification Is Pivotal for Resistance to Pseudomonas syringae DC3000 in Arabidopsis

2018 ◽  
Vol 31 (12) ◽  
pp. 1323-1336 ◽  
Author(s):  
Vicente Ramírez ◽  
Beatriz González ◽  
Ana López ◽  
Maria Jose Castelló ◽  
Maria José Gil ◽  
...  
Keyword(s):  
Disease Resistance ◽  
Pseudomonas Syringae ◽  
Bacterial Pathogen ◽  
Transfer Rna ◽  
Resistance Response ◽  
Chemical Structures ◽  
Trna Modifications ◽  
Trna Species ◽  
Living Organisms ◽  
And Function

Transfer RNA (tRNA) is the most highly modified class of RNA species in all living organisms. Recent discoveries have revealed unprecedented complexity in the tRNA chemical structures, modification patterns, regulation, and function, suggesting that each modified nucleoside in tRNA may have its own specific function. However, in plants, our knowledge of the role of individual tRNA modifications and how they are regulated is very limited. In a genetic screen designed to identify factors regulating disease resistance in Arabidopsis, we identified SUPPRESSOR OF CSB3 9 (SCS9). Our results reveal SCS9 encodes a tRNA methyltransferase that mediates the 2′-O-ribose methylation of selected tRNA species in the anticodon loop. These SCS9-mediated tRNA modifications enhance susceptibility during infection with the virulent bacterial pathogen Pseudomonas syringae DC3000. Lack of such tRNA modification, as observed in scs9 mutants, specifically dampens plant resistance against DC3000 without compromising the activation of the salicylic acid signaling pathway or the resistance to other biotrophic pathogens. Our results support a model that gives importance to the control of certain tRNA modifications for mounting an effective disease resistance in Arabidopsis toward DC3000 and, therefore, expands the repertoire of molecular components essential for an efficient disease resistance response.

Characterization and Expression Analysis of Resistance Gene Analogues in Elite Sugarcane Genotypes

2021 ◽  
Vol 28 ◽  
Author(s):  
Aqsa Parvaiz ◽  
Ghulam Mustafa ◽  
Muhammad Sarwar Khan ◽  
Muhammad Amjad Ali
Keyword(s):  
Phylogenetic Analysis ◽  
Disease Resistance ◽  
Resistance Gene ◽  
Critical Role ◽  
Colletotrichum Falcatum ◽  
Resistance Response ◽  
Sequence Characterization ◽  
Dna And Rna ◽  
Disease Resistant ◽  
Cellular Dna

Background: Resistance Gene Analogues (RGAs) are an important source of disease resistance in crop plants and have been extensively studies for their identification, tagging and mapping of Quantitative Trait Loci (QTLs). Tracking these RGAs in sugarcane can be of great help for the selection and screening of disease resistant clones. Objective: In the present study expression of different Resistance Gene Analogues (RGAs) was assessed in indigenous elite sugarcane genotypes which include resistant, highly resistant, susceptible and highly susceptible to disease infestation. Methods: Total cellular DNA and RNA were isolated from fourteen indigenous elite sugarcane genotypes. PCR, semi-quantitative RT PCR and real time qPCR analyses were performed. The resultant amplicons were sequence characterized, chromosomal localization and phylogenetic analysis were performed. Result: All of the 15 RGA primers resulted in amplification of single or multiple fragments from genomic DNA whereas only five RGA primers resulted in amplification from cDNA. Sequence characterization of amplified fragments revealed 86-99% similarity with disease resistance proteins indicating their potential role in disease resistance response. Phylogenetic analysis also validated these findings. Further, expression of RGA-012, RGA-087, RGA-118, RGA-533 and RGA-542 appeared to be upregulated and down regulated in disease resistant and susceptible genotypes, respectively, after inoculation with Colletotrichum falcatum. Conclusion: RGAs are present in most of our indigenous genotypes. Anyhow, differential expression of five RGAs indicated that they have some critical role in disease resistance. So, the retrieved results can not only be employed to devise molecular markers for the screening of disease resistant genotypes but can also be used to develop disease resistant plants through transgenic technology.

scholarly journals Expression and functional analysis of a PR-1 Gene, MuPR1, involved in disease resistance response in mulberry (Morus multicaulis)

2019 ◽  
Vol 14 (1) ◽  
pp. 376-385 ◽  
Author(s):  
Li-Jing Fang ◽  
Rong-Li Qin ◽  
Zhuang Liu ◽  
Chao-Rui Liu ◽  
Ying-Ping Gai ◽  
...  
Keyword(s):  
Functional Analysis ◽  
Disease Resistance ◽  
Resistance Response
Sign in / Sign up

Export Citation Format

Share Document