#Question id: 11835
#Unit 6. System Physiology – Plant
What is the role of ETO1 (ethylene overproducing 1) in ethylene signalling pathway?
#Question id: 11836
#Unit 6. System Physiology – Plant
During the ethylene signalling, absence of ethylene EIN2 phosphorylates at the C-terminus, and preventing cleavage, these phosphorylation done by
#Question id: 11837
#Unit 6. System Physiology – Plant
Which of the following given hormones are involved in the evolutionarily related to bacterial two-component histidine kinases?
#Question id: 11838
#Unit 6. System Physiology – Plant
Which of the following ethylene receptors in Arabidopsis) have intrinsic histidine kinase activity, and this activity does not appear to play an essential role in signalling?
#Question id: 11839
#Unit 6. System Physiology – Plant
Ethylene receptor are localized in___
#Question id: 11840
#Unit 1. Molecules and their Interaction Relevant to Biology
During an ethylene signalling pathway, what will have done inside cytosol and nucleus . Given below some
prediction about presence and absence of ethylene in column B match with column
A
|
COLUMN A |
COLUMN B |
|
I- In the presence of ethylene |
a) ETR1 signaling is repressed and CTR1 is
inactive |
|
II-
In the absence of ethylene |
b) ETR1 activate CTR1, a Ser/Thr kinase |
|
|
c) CTR1 phosphorylates the C-terminal domain
of EIN2 |
|
|
d) The nonphosphorylated C terminus of EIN2 is
cleaved by a protease |
|
|
e) Phosphorylation of EIN2 inhibits
proteolytic cleavage |
|
|
f) EIN3 transcription factors are
ubiquitinated and degraded in the nucleus by the 26S proteasome |
|
|
g) EIN3 initiates a transcriptional cascade by
activating expression of ethylene-responsive genes, including ERF1
transcription factor, leading to ethylene responses |