Cytokinin-Auxin interactions in plant development (Arabidopsis thaliana)

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3Shoot branchingRoot apical meristemAHKs isopentenyltransferase (IPT)Root transition zoneLateral rootinitiationAuxin exportMAX4BRC1IPT1StrigolactoneAuxinSHY2AHK3AHP61ARR1ARR10ARR12CytokininIPT2IPT3IPT4IPT5IPT9IPT8IPT7IPT6AuxinCytokininIPT5PIN3PIN1PIN7PIN6ARR1ARR12CytokininPIN1AHK41HistidinePhosphotransmitter (HP)AHK2AHK1AHK32, 4-7AHK411AHK5CytokininAHP3AHP2AHP4AHP5AHP1AHP-LikeARR1ARR12PIN1PIN7AuxinAuxin exportShoot apical meristem (SAM)MPARR15ARR78AuxinCytokininCLV3WUSARR5CLV19CLV2


The plant growth hormones auxin and cytokinin along with strigolactones play an active role in plant development. The pathway diagram shows interaction of growth hormone mediated regulation of gene activities and role in various plant part development. In the root apical meristem development section the paralogs of A. thaliana AHKs and AHPs were listed as family group members and not as members of the complex.

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  1. Tran LS, Urao T, Qin F, Maruyama K, Kakimoto T, Shinozaki K, Yamaguchi-Shinozaki K; ''Functional analysis of AHK1/ATHK1 and cytokinin receptor histidine kinases in response to abscisic acid, drought, and salt stress in Arabidopsis.''; Proc Natl Acad Sci U S A, 2007 PubMed Europe PMC Scholia
  2. Urao T, Yamaguchi-Shinozaki K, Shinozaki K; ''Plant histidine kinases: an emerging picture of two-component signal transduction in hormone and environmental responses.''; Sci STKE, 2001 PubMed Europe PMC Scholia
  3. Gordon SP, Chickarmane VS, Ohno C, Meyerowitz EM; ''Multiple feedback loops through cytokinin signaling control stem cell number within the Arabidopsis shoot meristem.''; Proc Natl Acad Sci U S A, 2009 PubMed Europe PMC Scholia
  4. Wohlbach DJ, Quirino BF, Sussman MR; ''Analysis of the Arabidopsis histidine kinase ATHK1 reveals a connection between vegetative osmotic stress sensing and seed maturation.''; Plant Cell, 2008 PubMed Europe PMC Scholia
  5. Marhavý P, Duclercq J, Weller B, Feraru E, Bielach A, Offringa R, Friml J, Schwechheimer C, Murphy A, Benková E; ''Cytokinin controls polarity of PIN1-dependent auxin transport during lateral root organogenesis.''; Curr Biol, 2014 PubMed Europe PMC Scholia
  6. Shkolnik-Inbar D, Bar-Zvi D; ''ABI4 mediates abscisic acid and cytokinin inhibition of lateral root formation by reducing polar auxin transport in Arabidopsis.''; Plant Cell, 2010 PubMed Europe PMC Scholia
  7. Caesar K, Thamm AM, Witthöft J, Elgass K, Huppenberger P, Grefen C, Horak J, Harter K; ''Evidence for the localization of the Arabidopsis cytokinin receptors AHK3 and AHK4 in the endoplasmic reticulum.''; J Exp Bot, 2011 PubMed Europe PMC Scholia
  8. El-Showk S, Ruonala R, Helariutta Y; ''Crossing paths: cytokinin signalling and crosstalk.''; Development, 2013 PubMed Europe PMC Scholia
  9. Lee DJ, Park JY, Ku SJ, Ha YM, Kim S, Kim MD, Oh MH, Kim J; ''Genome-wide expression profiling of ARABIDOPSIS RESPONSE REGULATOR 7(ARR7) overexpression in cytokinin response.''; Mol Genet Genomics, 2007 PubMed Europe PMC Scholia
  10. Urao T, Yakubov B, Satoh R, Yamaguchi-Shinozaki K, Seki M, Hirayama T, Shinozaki K; ''A transmembrane hybrid-type histidine kinase in Arabidopsis functions as an osmosensor.''; Plant Cell, 1999 PubMed Europe PMC Scholia
  11. Hao GP, Wu ZY, Chen MS, Cao MQ, Pelletier G, Huang CL, Yang Q; ''[ATHK1 gene regulates signal transduction of osmotic stress in Arabidopsis thaliana].''; Zhi Wu Sheng Li Yu Fen Zi Sheng Wu Xue Xue Bao, 2004 PubMed Europe PMC Scholia


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107046view14:13, 17 September 2019MaintBotChEBI identifier normalization
87355view09:29, 22 July 2016MaintBotadded missing graphids
87213view14:19, 19 July 2016SusanOntology Term : 'hormone signaling pathway' added !
80380view18:16, 12 June 2015Pjaiswalcorrected spelling
80371view17:06, 10 June 2015PjaiswalAdded ABI4 and PIn1 interaction
80370view16:58, 10 June 2015Pjaiswaladded PMID 24768050
80369view16:52, 10 June 2015PjaiswalModified description
80368view16:46, 10 June 2015Pjaiswalfixed connector shape
80367view16:43, 10 June 2015Pjaiswalrepasted the SAM section with previous edits
80366view16:42, 10 June 2015Pjaiswaladded more components in the SAM section
80360view23:19, 9 June 2015Pjaiswalconenctor type fixed in shoot branching section
80359view23:16, 9 June 2015PjaiswalModified description
80358view23:16, 9 June 2015PjaiswalModified description
80357view23:12, 9 June 2015Pjaiswalfixed connector in shoot branching section
80356view23:10, 9 June 2015Pjaiswalfixed connections and aded label
80355view23:06, 9 June 2015PjaiswalNew pathway

External references


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NameTypeDatabase referenceComment
AHK1GeneProductAT2G17820 (Ensembl Plants) Histidine Kinase 1
AHK2GeneProductAT5G35750 (Ensembl Plants) Histidine Kinase 2
AHK3GeneProductAT1G27320 (Ensembl Plants) Histidine Kinase 3
AHK4GeneProductAT2G01830 (Ensembl Plants) Histidine Kinase 4
AHK5GeneProductAT5G10720 (Ensembl Plants) Histidine Kinase 5
AHP-LikeGeneProductAT4G04402 (Ensembl Plants) histidine phosphotransfer protein like
AHP1GeneProductAT3G21510 (Ensembl Plants) histidine phosphotransfer protein 1
AHP2GeneProductAT3G29350 (Ensembl Plants) histidine phosphotransfer protein 2
AHP3GeneProductAT5G39340 (Ensembl Plants) histidine phosphotransfer protein 3
AHP4GeneProductAT3G16360 (Ensembl Plants) histidine phosphotransfer protein 4
AHP5GeneProductAT1G03430 (Ensembl Plants) histidine phosphotransfer protein 5
AHP6GeneProductAT1G80100 (Ensembl Plants) histidine phosphotransfer protein 6
ARR10GeneProductAt4g31920 (Ensembl Plants) Type-B Arabidopsis (Arabidopsis thaliana) response regulator 10
ARR12GeneProductAt2g25180 (Ensembl Plants) Type-B Arabidopsis (Arabidopsis thaliana) response regulator 12
ARR15GeneProductAT1G74890 (Ensembl Plants) Type-A Arabidopsis (Arabidopsis thaliana) response regulator 15
ARR1GeneProductAt3g16857 (Ensembl Plants) Type-B Arabidopsis (Arabidopsis thaliana) response regulator 1
ARR5GeneProductAt3g48100 (Ensembl Plants) Type-A Arabidopsis (Arabidopsis thaliana) response regulator 5
ARR7GeneProductAT1G19050 (Ensembl Plants) Type-A Arabidopsis (Arabidopsis thaliana) response regulator 7
AuxinMetabolite22676 (ChEBI)
BRC1GeneProductAT3G18550 (Ensembl Plants) branched 1
CLV1GeneProductAT1G75820 (Ensembl Plants) CLAVATA1
CLV2GeneProductAT1G65380 (Ensembl Plants) CLAVATA2
CLV3GeneProductAT2G27250 (Ensembl Plants) CLAVATA3
CytokininMetabolite23530 (ChEBI)
IPT1GeneProductAT1G68460 (Ensembl Plants) isopentenyltransferase 1
IPT2GeneProductAT2G27760 (Ensembl Plants) isopentenyltransferase 2
IPT3GeneProductAT3G63110 (Ensembl Plants) isopentenyltransferase 3
IPT4GeneProductAT4G24650 (Ensembl Plants) isopentenyltransferase 4
IPT5GeneProductAT5G19040 (Ensembl Plants) isopentenyltransferase 5
IPT6GeneProductAT1G25410 (Ensembl Plants) isopentenyltransferase 6
IPT7GeneProductAT3G23630 (Ensembl Plants) isopentenyltransferase 7
IPT8GeneProductAT3G19160 (Ensembl Plants) isopentenyltransferase 8
IPT9GeneProductAT5G20040 (Ensembl Plants) isopentenyltransferase 9
MAX4GeneProductAT4G32810 (Ensembl Plants) MORE AXILLARY BRANCHING 4
MPGeneProductAT1G19850 (Ensembl Plants) MONOPTEROS
PIN1GeneProductAT2G01420 (Ensembl Plants) Auxin efflux carrier family protein
PIN3GeneProductAT1G23080 (Ensembl Plants) Auxin efflux carrier family protein
PIN6GeneProductAT1G77110 (Ensembl Plants) Auxin efflux carrier family protein
PIN7GeneProductAT1G70940 (Ensembl Plants) Auxin efflux carrier family protein
SHY2GeneProductAT1G04240 (Ensembl Plants) SHORT HYPOCOTYL 2, IAA3, AUX/IAA transcriptional regulator family protein
StrigolactoneMetabolite68487 (ChEBI)
WUSGeneProductAT2G17950 (Ensembl Plants) WUSCHEL, WUSCHEL1, WUS1

Annotated Interactions

No annotated interactions

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