Article
Multidisciplinary Sciences
Tsubasa Kawai, Kyosuke Shibata, Ryosuke Akahoshi, Shunsaku Nishiuchi, Hirokazu Takahashi, Mikio Nakazono, Takaaki Kojima, Misuzu Nosaka-Takahashi, Yutaka Sato, Atsushi Toyoda, Nonawin Lucob-Agustin, Mana Kano-Nakata, Roel R. Suralta, Jonathan M. Niones, Yinglong Chen, Kadambot H. M. Siddique, Akira Yamauchi, Yoshiaki Inukai
Summary: The development of a plastic root system is crucial for stable crop production. In this study, the molecular mechanisms underlying the control of lateral root primordium size in rice were investigated. Two WOX genes were found to have opposing roles in controlling primordium size.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Plant Sciences
Tsubasa Kawai, Ryosuke Akahoshi, Israt J. Shelley, Takaaki Kojima, Moeko Sato, Hiroyuki Tsuji, Yoshiaki Inukai
Summary: This study reveals the important role of auxin signaling in regulating the diameter of lateral roots in plants. The protein DRP is identified as a key factor in controlling lateral root diameter. The upregulation of auxin signaling in lateral root primordia promotes the expression of a positive regulator, OsWOX10, leading to an increase in lateral root diameter.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Genetics & Heredity
Bobo Wang, Xiuli Zhu, Xiaoli Guo, Xuejiao Qi, Fan Feng, Yali Zhang, Quanzhi Zhao, Dan Han, Huwei Sun
Summary: Nitrate plays a crucial role in stimulating lateral root formation and growth in plants, affecting auxin response and transport in rice, with the involvement of strigolactones.
Article
Plant Sciences
Yinwei Zeng, Inge Verstraeten, Hoang Khai Trinh, Robin Lardon, Sebastien Schotte, Damilola Olatunji, Thomas Heugebaert, Christian Stevens, Mussa Quareshy, Richard Napier, Sara Paola Nastasi, Alex Costa, Bert De Rybel, Catherine Bellini, Tom Beeckman, Steffen Vanneste, Danny Geelen
Summary: This study reveals the molecular processes involved in the initiation of adventitious root (AR) formation along the hypocotyl of Arabidopsis seedlings exposed to light. The results show that AR induction by HYSPARIN involves nuclear TIR1/AFB and plasma membrane TMK auxin signaling, as well as multiple downstream LR development genes. Additionally, SAUR19, OFP4, and AGC2 are identified as novel regulators of AR formation.
Article
Multidisciplinary Sciences
Shiqi Zhang, Ruixue Yu, Dongxue Yu, Pengjie Chang, Shiqi Guo, Xiaona Yang, Xinchun Liu, Chongyi Xu, Yuxin Hu
Summary: This study reveals the interplay between the calcium signaling module and auxin signaling in Arabidopsis, showing their important roles in callus and lateral root formation. The physical interaction between CaM-IQM and IAA proteins in a calcium-dependent manner is found to regulate auxin-induced callus formation.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Plant Sciences
Bobo Wang, Xiaoli Guo, Xuejiao Qi, Fan Feng, Xiuli Zhu, Yibo Hu, Junzhou Li, Quanzhi Zhao, Huwei Sun
Summary: This study investigated the interaction between strigolactones (SLs) and auxin in regulating rice root elongation under nitrogen-deficient conditions. The results showed that the downstream transcription factor of strigolactone signaling, SPL14, played a role in modulating root elongation under low nitrogen supply. This study provides insights into the response mechanism of rice roots to nitrogen limitation.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2022)
Article
Plant Sciences
Qing Wang, Hugues De Gernier, Xingliang Duan, Yuanming Xie, Danny Geelen, Ken-ishiro Hayashi, Wei Xuan, Markus Geisler, Kirsten ten Tusscher, Tom Beeckman, Steffen Vanneste
Summary: LR positioning and development are regulated by auxin production, transport, and inactivation. This study demonstrates the impact of GH3-type auxin conjugating enzymes and DAO1 in LR development. The gh3hex mutants exhibit increased LR density due to enhanced initiation and faster progression, with GH3 activities controlling LR formation. GH3-mediated auxin inactivation attenuates LR development by modulating meristem activities and apical meristem size, resulting in accelerated auxin response oscillations and increased LR initiation rates.
Review
Plant Sciences
Noel Blanco-Tourinan, Christian S. Hardtke
Summary: The vascular system plays a crucial role in the growth and reproduction of plants by transporting water, nutrients, and minerals throughout the plant body. While our understanding of the regulatory mechanisms in vascular tissue development is mainly based on studies in the primary root of Arabidopsis, it remains unclear to what extent these mechanisms apply to other organs. This review focuses on recent advances in the formation of cotyledon veins, with an emphasis on polar auxin transport-dependent and -independent mechanisms. We also provide an overview of vascular formation in postembryonic organs, particularly lateral roots, which involves the coordinated action of multiple tissues.
CURRENT OPINION IN PLANT BIOLOGY
(2023)
Article
Plant Sciences
Qing-ping Zhao, Jing Wang, Hong-ru Yan, Meng-ya Yang, Jin Wang, Xiang Zhao, Xiao Zhang
Summary: Copper (Cu2+) is essential for plant growth but toxic in excess. AtNOA1 regulates Cu2+-induced lateral root (LR) formation by mediating LR elongation, affecting Cu2+ homeostasis and auxin redistribution.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2021)
Article
Plant Sciences
Qingfang Lin, Jiaxin Gong, Zhiliang Zhang, Zizi Meng, Jianyong Wang, Song Wang, Jing Sun, Xu Gu, Yuting Jin, Tong Wu, Nuo Yan, Yuxin Wang, Lei Kai, Jihong Jiang, Shilian Qi
Summary: Roots are vital for plants in water and nutrient absorption. The phytohormone auxin plays a crucial role in root growth by regulating its synthesis, distribution, and polar transport. The AtTPPI gene from Arabidopsis thaliana improves root architecture and the tppi1 mutant shows shortened primary roots. The mechanism underlying this phenotype, as well as the signaling pathways and genes regulated by AtTPPI, are unclear. Through experiments, it was demonstrated that the AtTPPI gene promotes auxin accumulation in plants and upregulates auxin-related genes. Furthermore, increased AtTPPI expression leads to better primary root growth and lateral root elongation under different nitrate concentrations.
FRONTIERS IN PLANT SCIENCE
(2023)
Editorial Material
Plant Sciences
Le Luo, Yuanming Xie, Wei Xuan
Summary: This study investigates the mechanism of lateral root formation in plants and identifies prohibitin 3 as a regulator of lateral root initiation. Prohibitin 3 affects the accumulation of endogenous nitric oxide and degradation of IAA proteins, leading to the activation of lateral root initiation.
JOURNAL OF EXPERIMENTAL BOTANY
(2022)
Article
Plant Sciences
Jie Gao, Yong Zhao, Zhikun Zhao, Wei Liu, Conghui Jiang, Jinjie Li, Zhanying Zhang, Hongliang Zhang, Yage Zhang, Xiaoning Wang, Xingming Sun, Zichao Li
Summary: In this study, a negative regulator gene of root development called RRS1 was cloned, which represses root development by activating the expression of the OsIAA3 gene involved in auxin signaling pathway. Natural variation in RRS1 changes its protein's transcriptional activity, leading to increased root length and enhanced drought resistance. This study provides a new gene resource for improving root systems and cultivating drought-resistant rice varieties with important values in agricultural applications.
Article
Biochemistry & Molecular Biology
Michael Stitz, David Kuster, Maximilian Reinert, Mikhail Schepetilnikov, Beatrice Berthet, Jazmin Reyes-Hernandez, Denis Janocha, Anthony Artins, Marc Boix, Rossana Henriques, Anne Pfeiffer, Jan Lohmann, Emmanuel Gaquerel, Alexis Maizel
Summary: Plant organogenesis requires the matching of metabolic resources with developmental programs. The root system in Arabidopsis is determined by primary root-derived lateral roots (LRs) and adventitious roots (ARs) formed from non-root organs. Lateral root formation requires the activation of transcription factors ARF7, ARF19, and LBD16. Adventitious root formation relies on the activation of LBD16 by auxin and WOX11. The allocation of shoot-derived sugar to the roots affects branching, but the mechanism of LRs formation is still unknown.
Article
Biochemistry & Molecular Biology
Ting-Ting Zhang, Hui Kang, Lu-Lu Fu, Wei-Jian Sun, Wen-Sheng Gao, Chun-Xiang You, Xiao-Fei Wang, Yu-Jin Hao
Summary: The study revealed that NLP7 activates TAR2 expression by binding to its promoter, thereby regulating lateral root development in response to nitrate levels in the soil.
Article
Biochemistry & Molecular Biology
Dong Xu, Zhuchou Lu, Guirong Qiao, Wenmin Qiu, Longhua Wu, Xiaojiao Han, Renying Zhuo
Summary: The research showed that the development of lateral roots (LR) in plants is regulated by auxin response factor SaARF4, which affects LR development by inhibiting ethylene biosynthesis. This process has an impact on plant growth and development.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
