scholarly journals MAPK signaling in plant hormone ethylene signal transduction

2008 ◽  
Vol 3 (10) ◽  
pp. 848-849 ◽  
Author(s):  
Sang-Dong Yoo ◽  
Jen Sheen
Keyword(s):  
Signal Transduction ◽  
Plant Hormone ◽  
Mapk Signaling ◽  
Ethylene Signal Transduction ◽  
Ethylene Signal

scholarly journals Transcriptomic analysis reveals ethylene signal transduction genes involved in pistil development of pumpkin

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e9677
Author(s):  
Qingfei Li ◽  
Li Zhang ◽  
Feifei Pan ◽  
Weili Guo ◽  
Bihua Chen ◽  
...  
Keyword(s):  
Signal Transduction ◽  
Transcription Factor ◽  
Sex Determination ◽  
Plant Hormone ◽  
Expression Levels ◽  
Ethylene Signal Transduction ◽  
Pistil Development ◽  
Signal Transduction Genes ◽  
Female Flowers ◽  
Ethylene Signal

Development of female flowers is an important process that directly affects the yield of Cucubits. Little information is available on the sex determination and development of female flowers in pumpkin, a typical monoecious plant. In the present study, we used aborted and normal pistils of pumpkin for RNA-Seq analysis and determined the differentially expressed genes (DEGs) to gain insights into the molecular mechanism underlying pistil development in pumpkin. A total of 3,817 DEGs were identified, among which 1,341 were upregulated and 2,476 were downregulated. The results of transcriptome analysis were confirmed by real-time quantitative RT-PCR. KEGG enrichment analysis showed that the DEGs were significantly enriched in plant hormone signal transduction and phenylpropanoid biosynthesis pathway. Eighty-four DEGs were enriched in the plant hormone signal transduction pathway, which accounted for 12.54% of the significant DEGs, and most of them were annotated as predicted ethylene responsive or insensitive transcription factor genes. Furthermore, the expression levels of four ethylene signal transduction genes in different flower structures (female calyx, pistil, male calyx, stamen, leaf, and ovary) were investigated. The ethyleneresponsive DNA binding factor, ERDBF3, and ethylene responsive transcription factor, ERTF10, showed the highest expression in pistils and the lowest expression in stamens, and their expression levels were 78- and 162-times more than that in stamens, respectively. These results suggest that plant hormone signal transduction genes, especially ethylene signal transduction genes, play an important role in the development of pistils in pumpkin. Our study provides a theoretical basis for further understanding of the mechanism of regulation of ethylene signal transduction genes in pistil development and sex determination in pumpkin.

scholarly journals Isolation and characterization of four ethylene signal transduction elements in plums (Prunus salicina L.)

2007 ◽  
Vol 58 (13) ◽  
pp. 3631-3643 ◽  
Author(s):  
I. El-Sharkawy ◽  
W. S. Kim ◽  
A. El-Kereamy ◽  
S. Jayasankar ◽  
A. M. Svircev ◽  
...  
Keyword(s):  
Signal Transduction ◽  
Prunus Salicina ◽  
Isolation And Characterization ◽  
Ethylene Signal Transduction ◽  
Ethylene Signal

Histidine kinase activity and the regulation of ethylene signal transduction

2005 ◽  
Vol 83 (6) ◽  
pp. 563-570 ◽  
Author(s):  
Michael G Mason ◽  
G Eric Schaller
Keyword(s):  
Signal Transduction ◽  
Plant Growth ◽  
Histidine Kinase ◽  
Kinase Activity ◽  
Ethylene Receptor ◽  
Serine Threonine Kinase ◽  
Two Component ◽  
Ethylene Signal Transduction ◽  
Ethylene Signal

Ethylene is a gaseous hormone that regulates many aspects of plant growth and development. Although the effect of ethylene on plant growth was discovered a century ago, the key players in the ethylene response pathway were only identified over the last 15 years. In Arabidopsis, ethylene is perceived by a family of five receptors (ETR1, ETR2, ERS1, ERS2, and EIN4) that resemble two-component histidine kinases. Of these, only ETR1 and ERS1 contain all the conserved residues required for histidine kinase activity. The ethylene receptors appear to function primarily through CTR1, a serine/threonine kinase that actively suppresses ethylene responses in air (absence of ethylene). Despite recent progress toward understanding ethylene signal transduction, the role of the ethylene-receptor histidine-kinase activity remains unclear. This review considers the significance of histidine kinase activity in ethylene signaling and possible mechanisms by which it may modulate ethylene responses.Key words: ethylene receptor, ETR1, histidine kinase, two-component, phosphorylation, Arabidopsis.

scholarly journals Ethylene signal transduction elements involved in chilling injury in non-climacteric loquat fruit

2009 ◽  
Vol 61 (1) ◽  
pp. 179-190 ◽  
Author(s):  
P. Wang ◽  
B. Zhang ◽  
X. Li ◽  
C. Xu ◽  
X. Yin ◽  
...  
Keyword(s):  
Signal Transduction ◽  
Chilling Injury ◽  
Ethylene Signal Transduction ◽  
Ethylene Signal

scholarly journals Differential Gene Expression Analysis of Resistant and Susceptible Flax Cultivars in Response to Fusarium oxysporum Stress

2021 ◽  
Author(s):  
He Rui ◽  
Chang Yin Dong ◽  
Wang Jian Ming
Keyword(s):  
Signal Transduction ◽  
Disease Resistance ◽  
Fusarium Oxysporum ◽  
Signaling Pathway ◽  
Plant Hormone ◽  
Enrichment Analysis ◽  
Mapk Signaling ◽  
Resistant Cultivar ◽  
Susceptible Cultivar ◽  
Significant Difference

A plant’s early response to pathogen stress is a vital indicator of its disease resistance. In order to study the response mechanism of resistant and susceptible flax cultivars to Fusarium oxysporum f. sp. lini (Foln), we applied RNA-sequencing to analyze transcriptomes of flax with Foln 0.5, 2 and 8 hours post inoculation (hpi). We found a significant difference in the number of differential expression genes (DEGs) between resistant and susceptible flax clutivars. The number of DEGs in the Fusarium-resistant cultivar increased dramatically at 2 hpi, and a large number of DEGs participated in the Fusarium-susceptible cultivar response to Foln infection 0.5 hpi. GO enrichment analysis determined that the up-regulated DEGs of both flax cultivars were enriched such as oxidoreductase activity and oxidation-reduction process. At the same time, the genes involved in diterpenoid synthesis were up-regulated in resistant cultivar, while those involved in extracellular region, cell wall and organophosphate ester transport were down-regulated in susceptible cultivar. KEGG enrichment analysis showed the genes encoded WRKY 22 and WRKY33 which involved in MAPK signaling pathway were up-regulated expressed in S-29 and down-regulated expressed in R-7, negatively regulated the disease resistance of flax; The genes encoded Hsp 90 family which in involved in plant pathogen interaction pathway were up-regulated in R-7 and down-regulated in S-29, which positively regulated the disease resistance of flax; The genes encoded MYC2 transcription factor and TIFY proteins which involved in plant hormone signaling pathway were up-regulated in R-7, and regulated the jasmonic acid metabolism of flax and the signal transduction of plant hormones. Meanwhile seven regulatory genes with the most correlation were screened out, Among Lus10025000.g and Lus10026447.g regulated other genes expressed both in plant hormone signal transduction pathway and MAPK signal pathway. In conclusion, these findings will facilitate further studies on the function of these candidate genes in flax of response to Fusarium stress, and the breeding of disease-resistant flax cultivar.

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