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Synergistic action of auxin and cytokinin mediates aluminum-induced root growth inhibition in Arabidopsis

(2017) EMBO REPORTS. 18(7). p.1213-1230
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Abstract
Auxin acts synergistically with cytokinin to control the shoot stem-cell niche, while both hormones act antagonistically to maintain the root meristem. In aluminum (Al) stress-induced root growth inhibition, auxin plays an important role. However, the role of cytokinin in this process is not well understood. In this study, we show that cytokinin enhances root growth inhibition under stress by mediating Al-induced auxin signaling. Al stress triggers a local cytokinin response in the root-apex transition zone (TZ) that depends on IPTs, which encode adenosine phosphate isopentenyl-transferases and regulate cytokinin biosynthesis. IPTs are up-regulated specifically in the root-apex TZ in response to Al stress and promote local cytokinin biosynthesis and inhibition of root growth. The process of root growth inhibition is also controlled by ethylene signaling which acts upstream of auxin. In summary, different from the situation in the root meristem, auxin acts with cytokinin in a synergistic way to mediate aluminum-induced root growth inhibition in Arabidopsis.
Keywords
B RESPONSE REGULATORS, PLANT DEVELOPMENT, TRANSITION ZONE, ABSCISIC-ACID, CELL-DIFFERENTIATION, SYSTEM ARCHITECTURE, PHASEOLUS-VULGARIS, MERISTEM ACTIVITY, STRESS-RESPONSE, DROUGHT STRESS, aluminum, auxin, cytokinin, root growth

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MLA
Yang, Zhong-Bao et al. “Synergistic Action of Auxin and Cytokinin Mediates Aluminum-induced Root Growth Inhibition in Arabidopsis.” EMBO REPORTS 18.7 (2017): 1213–1230. Print.
APA
Yang, Z.-B., Liu, G., Liu, J., Zhang, B., Meng, W., Muller, B., Hayashi, K., et al. (2017). Synergistic action of auxin and cytokinin mediates aluminum-induced root growth inhibition in Arabidopsis. EMBO REPORTS, 18(7), 1213–1230.
Chicago author-date
Yang, Zhong-Bao, Guangchao Liu, Jiajia Liu, Bing Zhang, Wenjing Meng, Bruno Muller, Ken-ichiro Hayashi, et al. 2017. “Synergistic Action of Auxin and Cytokinin Mediates Aluminum-induced Root Growth Inhibition in Arabidopsis.” Embo Reports 18 (7): 1213–1230.
Chicago author-date (all authors)
Yang, Zhong-Bao, Guangchao Liu, Jiajia Liu, Bing Zhang, Wenjing Meng, Bruno Muller, Ken-ichiro Hayashi, Xiansheng Zhang, Zhong Zhao, Ive De Smet, and Zhaojun Ding. 2017. “Synergistic Action of Auxin and Cytokinin Mediates Aluminum-induced Root Growth Inhibition in Arabidopsis.” Embo Reports 18 (7): 1213–1230.
Vancouver
1.
Yang Z-B, Liu G, Liu J, Zhang B, Meng W, Muller B, et al. Synergistic action of auxin and cytokinin mediates aluminum-induced root growth inhibition in Arabidopsis. EMBO REPORTS. 2017;18(7):1213–30.
IEEE
[1]
Z.-B. Yang et al., “Synergistic action of auxin and cytokinin mediates aluminum-induced root growth inhibition in Arabidopsis,” EMBO REPORTS, vol. 18, no. 7, pp. 1213–1230, 2017.
@article{8527463,
  abstract     = {Auxin acts synergistically with cytokinin to control the shoot stem-cell niche, while both hormones act antagonistically to maintain the root meristem. In aluminum (Al) stress-induced root growth inhibition, auxin plays an important role. However, the role of cytokinin in this process is not well understood. In this study, we show that cytokinin enhances root growth inhibition under stress by mediating Al-induced auxin signaling. Al stress triggers a local cytokinin response in the root-apex transition zone (TZ) that depends on IPTs, which encode adenosine phosphate isopentenyl-transferases and regulate cytokinin biosynthesis. IPTs are up-regulated specifically in the root-apex TZ in response to Al stress and promote local cytokinin biosynthesis and inhibition of root growth. The process of root growth inhibition is also controlled by ethylene signaling which acts upstream of auxin. In summary, different from the situation in the root meristem, auxin acts with cytokinin in a synergistic way to mediate aluminum-induced root growth inhibition in Arabidopsis.},
  author       = {Yang, Zhong-Bao and Liu, Guangchao and Liu, Jiajia and Zhang, Bing and Meng, Wenjing and Muller, Bruno and Hayashi, Ken-ichiro and Zhang, Xiansheng and Zhao, Zhong and De Smet, Ive and Ding, Zhaojun},
  issn         = {1469-221X},
  journal      = {EMBO REPORTS},
  keywords     = {B RESPONSE REGULATORS,PLANT DEVELOPMENT,TRANSITION ZONE,ABSCISIC-ACID,CELL-DIFFERENTIATION,SYSTEM ARCHITECTURE,PHASEOLUS-VULGARIS,MERISTEM ACTIVITY,STRESS-RESPONSE,DROUGHT STRESS,aluminum,auxin,cytokinin,root growth},
  language     = {eng},
  number       = {7},
  pages        = {1213--1230},
  title        = {Synergistic action of auxin and cytokinin mediates aluminum-induced root growth inhibition in Arabidopsis},
  url          = {http://dx.doi.org/10.15252/embr.201643806},
  volume       = {18},
  year         = {2017},
}

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