scholarly journals Keeping the Ethylene Response Fluid: GDSL Lipase MHZ11 Modulates Sterol Levels and Ethylene Signaling in Rice Roots

2020 ◽  
Vol 32 (5) ◽  
pp. 1352-1353
Author(s):  
Josh Strable
Keyword(s):  
Ethylene Signaling ◽  
Rice Roots ◽  
Ethylene Response ◽  
Gdsl Lipase

scholarly journals The GDSL Lipase MHZ11 Modulates Ethylene Signaling in Rice Roots

2020 ◽  
Vol 32 (5) ◽  
pp. 1626-1643 ◽  
Author(s):  
He Zhao ◽  
Biao Ma ◽  
Kai-Xuan Duan ◽  
Xin-Kai Li ◽  
Xiang Lu ◽  
...  
Keyword(s):  
Ethylene Signaling ◽  
Rice Roots ◽  
Gdsl Lipase

scholarly journals Membrane protein MHZ3 stabilizes OsEIN2 in rice by interacting with its Nramp-like domain

2018 ◽  
Vol 115 (10) ◽  
pp. 2520-2525 ◽  
Author(s):  
Biao Ma ◽  
Yang Zhou ◽  
Hui Chen ◽  
Si-Jie He ◽  
Yi-Hua Huang ◽  
...  
Keyword(s):  
Membrane Protein ◽  
Ethylene Signaling ◽  
Loss Of Function ◽  
Wild Type ◽  
Protein Ubiquitination ◽  
Ethylene Response ◽  
Gene And Protein Expression ◽  
Domain Loss ◽  
Ethylene Insensitivity ◽  
Insight Into

The phytohormone ethylene regulates many aspects of plant growth and development. EIN2 is the central regulator of ethylene signaling, and its turnover is crucial for triggering ethylene responses. Here, we identified a stabilizer of OsEIN2 through analysis of the rice ethylene-response mutant mhz3. Loss-of-function mutations lead to ethylene insensitivity in etiolated rice seedlings. MHZ3 encodes a previously uncharacterized membrane protein localized to the endoplasmic reticulum. Ethylene induces MHZ3 gene and protein expression. Genetically, MHZ3 acts at the OsEIN2 level in the signaling pathway. MHZ3 physically interacts with OsEIN2, and both the N- and C-termini of MHZ3 specifically associate with the OsEIN2 Nramp-like domain. Loss of mhz3 function reduces OsEIN2 abundance and attenuates ethylene-induced OsEIN2 accumulation, whereas MHZ3 overexpression elevates the abundance of both wild-type and mutated OsEIN2 proteins, suggesting that MHZ3 is required for proper accumulation of OsEIN2 protein. The association of MHZ3 with the Nramp-like domain is crucial for OsEIN2 accumulation, demonstrating the significance of the OsEIN2 transmembrane domains in ethylene signaling. Moreover, MHZ3 negatively modulates OsEIN2 ubiquitination, protecting OsEIN2 from proteasome-mediated degradation. Together, these results suggest that ethylene-induced MHZ3 stabilizes OsEIN2 likely by binding to its Nramp-like domain and impeding protein ubiquitination to facilitate ethylene signal transduction. Our findings provide insight into the mechanisms of ethylene signaling.

scholarly journals Jasmonate and Ethylene-Regulated Ethylene Response Factor 22 Promotes Lanolin-Induced Anthocyanin Biosynthesis in ‘Zaosu’ Pear (Pyrus bretschneideri Rehd.) Fruit

Biomolecules ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 278
Author(s):  
Ting Wu ◽  
Han-Ting Liu ◽  
Guang-Ping Zhao ◽  
Jun-Xing Song ◽  
Xiao-Li Wang ◽  
...  
Keyword(s):  
Anthocyanin Biosynthesis ◽  
Luciferase Assay ◽  
Pcr Analysis ◽  
Ethylene Response Factor ◽  
Response Factor ◽  
Ethylene Signaling ◽  
Pear Fruit ◽  
Ethylene Response ◽  
Erf Family ◽  
New Perspective

Anthocyanin contributes to the coloration of pear fruit and enhances plant defenses. Members of the ethylene response factor (ERF) family play vital roles in hormone and stress signaling and are involved in anthocyanin biosynthesis. Here, PbERF22 was identified from the lanolin-induced red fruit of ‘Zaosu’ pear (Pyrus bretschneideri Rehd.) using a comparative transcriptome analysis. Its expression level was up- and down-regulated by methyl jasmonate and 1-methylcyclopropene plus lanolin treatments, respectively, which indicated that PbERF22 responded to the jasmonate- and ethylene-signaling pathways. In addition, transiently overexpressed PbERF22 induced anthocyanin biosynthesis in ‘Zaosu’ fruit, and a quantitative PCR analysis further confirmed that PbERF22 facilitated the expression of anthocyanin biosynthetic structural and regulatory genes. Moreover, a dual luciferase assay showed that PbERF22 enhanced the activation effects of PbMYB10 and PbMYB10b on the PbUFGT promoter. Therefore, PbERF22 responses to jasmonate and ethylene signals and regulates anthocyanin biosynthesis. This provides a new perspective on the correlation between jasmonate–ethylene crosstalk and anthocyanin biosynthesis.

scholarly journals GDSL lipase 1 regulates ethylene signaling and ethylene-associated systemic immunity inArabidopsis

FEBS Letters ◽  
2014 ◽  
Vol 588 (9) ◽  
pp. 1652-1658 ◽  
Author(s):  
Hye Gi Kim ◽  
Sun Jae Kwon ◽  
Young Jin Jang ◽  
Joo Hee Chung ◽  
Myung Hee Nam ◽  
...  
Keyword(s):  
Ethylene Signaling ◽  
Systemic Immunity ◽  
Gdsl Lipase

GDSL lipase-like 1 regulates systemic resistance associated with ethylene signaling in Arabidopsis

2009 ◽  
Vol 58 (2) ◽  
pp. 235-245 ◽  
Author(s):  
Sun Jae Kwon ◽  
Hak Chul Jin ◽  
Soohyun Lee ◽  
Myung Hee Nam ◽  
Joo Hee Chung ◽  
...  
Keyword(s):  
Systemic Resistance ◽  
Ethylene Signaling ◽  
Gdsl Lipase

scholarly journals Ethylene-triggered subcellular trafficking of CTR1 suppresses the response to ethylene gas

2020 ◽  
Author(s):  
Han Yong Lee ◽  
Dong Hye Seo ◽  
Arkadipta Bakshi ◽  
Hye Lin Park ◽  
Chanung Park ◽  
...  
Keyword(s):  
Stress Responses ◽  
Underlying Mechanism ◽  
Negative Regulator ◽  
Ethylene Signaling ◽  
Growth Reduction ◽  
Subcellular Trafficking ◽  
Ethylene Response ◽  
Ethylene Signaling Pathway ◽  
Signaling Components ◽  
Dramatic Growth

SummaryEthylene gas controls plant growth and stress responses. Ethylene-exposed dark-grown seedlings exhibit a dramatic growth reduction, yet the seedlings rapidly return to the basal growth rate when ethylene gas is removed. However, the underlying mechanism governing this remarkable reversible acclimation of dark-grown seedlings to ethylene remains enigmatic. Here, we report that ethylene triggers the translocation of the Raf-like protein kinase CONSTITUTIVE TRIPLE RESPONSE1 (CTR1), a negative regulator of ethylene signaling, from the endoplasmic reticulum to the nucleus. Nuclear-localized CTR1 inhibits the ETHYLENE-INSENSITIVE3 (EIN3) transcription factor via the EIN3-BINDING F-box Proteins, resulting in rapid suppression of the ethylene response, thus promoting fast growth recovery. These findings uncover a mechanism of the ethylene signaling pathway that links the spatiotemporal dynamics of cellular signaling components to organismal responses.

scholarly journals Ethylene Signaling Renders the Jasmonate Response of Arabidopsis Insensitive to Future Suppression by Salicylic Acid

2010 ◽  
Vol 23 (2) ◽  
pp. 187-197 ◽  
Author(s):  
Antonio Leon-Reyes ◽  
Yujuan Du ◽  
Annemart Koornneef ◽  
Silvia Proietti ◽  
Ana P. Körbes ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Constitutive Expression ◽  
Alternaria Brassicicola ◽  
Marker Genes ◽  
Ethylene Response Factor ◽  
Hormone Signaling ◽  
Ethylene Signaling ◽  
Ethylene Response ◽  
Potential Mediator ◽  
Fine Tune

Cross-talk between jasmonate (JA), ethylene (ET), and Salicylic acid (SA) signaling is thought to operate as a mechanism to fine-tune induced defenses that are activated in response to multiple attackers. Here, 43 Arabidopsis genotypes impaired in hormone signaling or defense-related processes were screened for their ability to express SA-mediated suppression of JA-responsive gene expression. Mutant cev1, which displays constitutive expression of JA and ET responses, appeared to be insensitive to SA-mediated suppression of the JA-responsive marker genes PDF1.2 and VSP2. Accordingly, strong activation of JA and ET responses by the necrotrophic pathogens Botrytis cinerea and Alternaria brassicicola prior to SA treatment counteracted the ability of SA to suppress the JA response. Pharmacological assays, mutant analysis, and studies with the ET-signaling inhibitor 1-methylcyclopropene revealed that ET signaling renders the JA response insensitive to subsequent suppression by SA. The APETALA2/ETHYLENE RESPONSE FACTOR transcription factor ORA59, which regulates JA/ET-responsive genes such as PDF1.2, emerged as a potential mediator in this process. Collectively, our results point to a model in which simultaneous induction of the JA and ET pathway renders the plant insensitive to future SA-mediated suppression of JA-dependent defenses, which may prioritize the JA/ET pathway over the SA pathway during multi-attacker interactions.

scholarly journals Ethylene signaling via Ethylene Response Factors (ERFs) modifies wood development in hybrid aspen

2011 ◽  
Vol 5 (Suppl 7) ◽  
pp. I15 ◽  
Author(s):  
Judith Felten ◽  
Jorma Vahala ◽  
Jonathan Love ◽  
András Gorzsás ◽  
Lorenz Gerber ◽  
...  
Keyword(s):  
Hybrid Aspen ◽  
Ethylene Signaling ◽  
Response Factors ◽  
Wood Development ◽  
Ethylene Response ◽  
Ethylene Response Factors
Sign in / Sign up

Export Citation Format

Share Document