PMID- 33975509
OWN - NLM
STAT- MEDLINE
DCOM- 20211217
LR  - 20220512
IS  - 1559-2324 (Electronic)
IS  - 1559-2316 (Print)
IS  - 1559-2316 (Linking)
VI  - 16
IP  - 9
DP  - 2021 Sep 2
TI  - A dual mode of ethylene actions contributes to the optimization of hypocotyl 
      growth under fluctuating temperature environments.
PG  - 1926131
LID - 10.1080/15592324.2021.1926131 [doi]
LID - 1926131
AB  - The gaseous phytohormone ethylene plays versatile roles in sustaining plant 
      growth and fitness in response to environmental changes, such as light 
      illumination, flooding, and mechanical pressure. Interestingly, it is well known 
      that the effects of ethylene on plant growth vary profoundly, depending on 
      external conditions. For example, light/dark conditions alter the directionality 
      of ethylene action on hypocotyl growth. Similarly, a recent study has shown that 
      the effects of ethylene on hypocotyl growth are reversed during temperature 
      increases: ethylene attenuates hypocotyl elongation in the light at warm 
      temperatures (28 degrees C), while promoting it at normal temperatures (22 degrees C). The 
      ethylene-activated ETHYLENE-INSENSITIVE 3 (EIN3) transcription factor directly 
      promotes the transcription of both PHYTOCHROM INTERACTING FACTOR 3 (PIF3) and 
      ARABIDOPSIS PP2C CLADE D7 (APD7) genes. At 22 degrees C, the auxin activity is tuned 
      down, and thus ethylene promotes hypocotyl growth via the PIF3-mediated 
      microtubule reorganization. On the other hand, when auxin highly accumulates at 
      28 degrees C, the ethylene-directed growth repression is potentiated through the 
      APD7-mediated repression of auxin responses. APD7 plays a role in integrating 
      ethylene cues into auxin signaling. We propose that the dual mode of 
      EIN3-mediated ethylene actions enables plants to optimize growth under constantly 
      changing environments.
FAU - Kim, Jae Young
AU  - Kim JY
AD  - Department of Chemistry, Seoul National University, Seoul, Korea.
FAU - Park, Chung-Mo
AU  - Park CM
AD  - Department of Chemistry, Seoul National University, Seoul, Korea.
AD  - Plant Genomics and Breeding Institute, Seoul National University, Seoul, Korea.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20210511
PL  - United States
TA  - Plant Signal Behav
JT  - Plant signaling & behavior
JID - 101291431
RN  - 0 (Ethylenes)
SB  - IM
MH  - Adaptation, Physiological
MH  - Arabidopsis/*genetics/*growth & development/*metabolism
MH  - *Cold Temperature
MH  - Ethylenes/*metabolism
MH  - Gene Expression Regulation, Plant/*drug effects
MH  - Hypocotyl/*growth & development
PMC - PMC8280972
OTO - NOTNLM
OT  - APD7
OT  - EIN3
OT  - Ethylene
OT  - PIF4
OT  - auxin
OT  - thermomorphogenesis
EDAT- 2021/05/13 06:00
MHDA- 2021/12/18 06:00
PMCR- 2022/05/11
CRDT- 2021/05/12 05:35
PHST- 2021/05/13 06:00 [pubmed]
PHST- 2021/12/18 06:00 [medline]
PHST- 2021/05/12 05:35 [entrez]
PHST- 2022/05/11 00:00 [pmc-release]
AID - 1926131 [pii]
AID - 10.1080/15592324.2021.1926131 [doi]
PST - ppublish
SO  - Plant Signal Behav. 2021 Sep 2;16(9):1926131. doi: 10.1080/15592324.2021.1926131. 
      Epub 2021 May 11.