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Plant Signaling & Behavior Volume 17, 2022 - Issue 1
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Review

ROS and calcium oscillations are required for polarized root hair growth

Xinxin Zhanga College of Life Sciences, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, P.R. China;b State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, the Chinese Academy of Sciences, Beijing, P.R. ChinaCorrespondence[email protected]
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,
Ang Bianc College of Computer Science, Sichuan University, Chengdu, P.R. ChinaView further author information
,
Teng Lia College of Life Sciences, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, P.R. ChinaView further author information
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Lifei Rend State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, The Chinese Academy of Sciences, Beijing, P.R. ChinaView further author information
,
Li Lie Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing, P.R. ChinaView further author information
,
Yuan Suf College of Life Science and Technology, Guangxi University, Nanning, P.R. ChinaView further author information
&
Qun Zhanga College of Life Sciences, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, P.R. ChinaCorrespondence[email protected]
ORCID Iconhttps://orcid.org/0000-0002-4477-1478View further author information
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Article: 2106410 | Received 31 May 2022, Accepted 23 Jul 2022, Published online: 07 Aug 2022

Figures & data

Figure 1. Regulation of tip growth of root hairs by ROS and Ca2+. This model is based on the previous works.Citation1,Citation6–10Apoplastic ROS generated by PRXs and RBOHC (RHD2) control cell wall expansion or crosslinking in the apical zone of root hairs. Ca2+ oscillations focused in root hair tip are modulated by CNGC5, CNGC6, CNGC9 and CNGC14. The CBL1/CIPK26 complex phosphorylates and activates RBOHC to generate ROS. RSL4 directly regulates the expression of genes encoding RBOHC and PRX01 (At1g05240), PRX44 (At4g26010), PRX73 (At5g67400), and PRX69 (AT5G64100). Blue asterisks indicate cortex. Black asterisks indicate H cell position. Red asterisks indicate N cell position.

Figure 1. Regulation of tip growth of root hairs by ROS and Ca2+. This model is based on the previous works.Citation1,Citation6–10Apoplastic ROS generated by PRXs and RBOHC (RHD2) control cell wall expansion or crosslinking in the apical zone of root hairs. Ca2+ oscillations focused in root hair tip are modulated by CNGC5, CNGC6, CNGC9 and CNGC14. The CBL1/CIPK26 complex phosphorylates and activates RBOHC to generate ROS. RSL4 directly regulates the expression of genes encoding RBOHC and PRX01 (At1g05240), PRX44 (At4g26010), PRX73 (At5g67400), and PRX69 (AT5G64100). Blue asterisks indicate cortex. Black asterisks indicate H cell position. Red asterisks indicate N cell position.

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