[Ethylene signal transduction pathway].
Ethylene is involved in the regulation of many growth and developmental processes in plants. Signaling pathways of the hormone are activated by five receptors, which are localized in membranes of endoplasmic reticulum and are similar to bacterial two-component histidine kinases. In the air, ethylene receptors activate CTR1 protein, which is a negative regulator (repressor) of nuclear protein--EIN2. In turn, EIN2 is an activator of transcriptional factors cascade responsible for the regulation of the expression of ethylene response genes. The level of EIN3, as well as other elements of ethylene signal transduction pathway, is subjected to complicated regulations on transcriptional and posttranslational levels, in which other internal and environmental factors are involved.
Frankowski
Kamil
K
Zakład Fizjologii i Biologii Molekularnej Roślin, Instytut Biologii Ogólnej i Molekularnej, Uniwersytet Mikołaja Kopernika, Toruń. Kamil.Frankowski@uni.torun.pl
Kesy
Jacek
J
Kotarba
Wojciech
W
Kopcewicz
Jan
J
D029681:Arabidopsis Proteins / Q000502:physiology; D004268:DNA-Binding Proteins; D004721:Endoplasmic Reticulum / Q000502:physiology*; D005030:Ethylenes / Q000378:metabolism*; D015870:Gene Expression; D018506:Gene Expression Regulation, Plant; D009687:Nuclear Proteins / Q000502:physiology; D010937:Plant Growth Regulators / Q000378:metabolism*; D011494:Protein Kinases / Q000502:physiology; D011956:Receptors, Cell Surface / Q000502:physiology; D015398:Signal Transduction; D014157:Transcription Factors / Q000502:physiology
D029681:Arabidopsis Proteins; D004268:DNA-Binding Proteins; C119963:EIN2 protein, Arabidopsis; C106987:EIN3 protein, Arabidopsis; D005030:Ethylenes; D009687:Nuclear Proteins; D010937:Plant Growth Regulators; D011956:Receptors, Cell Surface; D014157:Transcription Factors; C036216:ethylene; D011494:Protein Kinases; C477753:CTR1 protein, Arabidopsis