scholarly journals Combinatorial Signal Integration by APETALA2/Ethylene Response Factor (ERF)-Transcription Factors and the Involvement of AP2-2 in Starvation Response

2012 ◽  
Vol 13 (5) ◽  
pp. 5933-5951 ◽  
Author(s):  
Marc Oliver Vogel ◽  
Deborah Gomez-Perez ◽  
Nina Probst ◽  
Karl-Josef Dietz
Author(s):  
Rabia Akram ◽  
Farah Deeba ◽  
Maryam Zain ◽  
Nadia Iqbal

Abiotic and biotic stresses are the causes of drastic changes in plants growth and development.These stresses effect crop production and quality, thus result is in economic lose and food insecurity. Many factors play vital role in regulating growth of plants along with developmental pathways during biotic and abiotic stresses. Transcription factors are proteins that control physiological, developmental and stress responses in plants. Ethylene response factors belong to the biggest family of transcription factors, known to participate in various stress tolerance like drought, heat, salt and cold. They are significant regulators of plant gene expression. The objective of this review is to present how ethylene response factor family proteins became the focus of stress tolerance as well as the development and growth of plants.


2021 ◽  
Vol 12 ◽  
Author(s):  
Miyuki T. Nakata ◽  
Shingo Sakamoto ◽  
Nuoendagula ◽  
Shinya Kajita ◽  
Nobutaka Mitsuda

Arabidopsis thaliana transcription factors belonging to the ERFIIId and ERFIIIe subclade (ERFIIId/e) of the APETALA 2/ethylene response factor (AP2/ERF) family enhance primary cell wall (PCW) formation. These transcription factors activate expression of genes encoding PCW-type cellulose synthase (CESA) subunits and other genes for PCW biosynthesis. In this study, we show that fiber-specific expression of ERF035-VP16 and ERF041-VP16, which are VP16-fused proteins of ERFIIId/e members, promote cell wall thickening in a wild-type background with a concomitant increase of alcohol insoluble residues (cell wall content) per fresh weight (FW) and monosaccharides related to the PCW without affecting plant growth. Furthermore, in the ERF041-VP16 lines, the total amount of lignin and the syringyl (S)/guaiacyl (G) ratio decreased, and the enzymatic saccharification yield of glucose from cellulose per fresh weight improved. In these lines, PCW-type CESA genes were upregulated and ferulate 5-hydropxylase1 (F5H1), which is necessary for production of the S unit lignin, was downregulated. In addition, various changes in the expression levels of transcription factors regulating secondary cell wall (SCW) formation were observed. In conclusion, fiber cell-specific ERF041-VP16 improves biomass yield, increases PCW components, and alters lignin composition and deposition and may be suitable for use in future molecular breeding programs of biomass crops.


2017 ◽  
Vol 134 ◽  
pp. 33-44 ◽  
Author(s):  
Rambod Abiri ◽  
Noor Azmi Shaharuddin ◽  
Mahmood Maziah ◽  
Zetty Norhana Balia Yusof ◽  
Narges Atabaki ◽  
...  

Plants ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 1033
Author(s):  
Chunying Wang ◽  
Tingting Lin ◽  
Mengqi Wang ◽  
Xiaoting Qi

Ethylene-responsive elements (EREs), such as the GCC box, are critical for ethylene-regulated transcription in plants. Our previous work identified a 19-bp AC-rich element (ACE) in the promoter of bean (Phaseolus vulgaris) metal response element-binding transcription factor 1 (PvMTF-1). Ethylene response factor 15 (PvERF15) directly binds ACE to enhance PvMTF-1 expression. As a novel ERF-binding element, ACE exhibits a significant difference from the GCC box. Here, we demonstrated that ACE serves as an ERE in Arabidopsis. It conferred the minimal promoter to respond to the ethylene stress and inhibition of ethylene. Moreover, the cis-acting element ACE could specifically bind the nuclear proteins in vitro. We further revealed that the first 9-bp sequence of ACE (ACEcore) is importantly required by the binding of nuclear proteins. In addition, PvERF15 and PvMTF-1 were strongly induced by ethylene in bean seedlings. Since PvERF15 activates PvMTF-1 via ACE, ACE is involved in ethylene-induced PvMTF-1 expression. Taken together, our findings provide genetic and biochemical evidence for a new ERE.


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