Results 71 to 80 of about 112,117 (254)

Parsimonious Model of Vascular Patterning Links Transverse Hormone Fluxes to Lateral Root Initiation: Auxin Leads the Way, while Cytokinin Levels Out.

PLoS Computational Biology, 2015
An auxin maximum is positioned along the xylem axis of the Arabidopsis root tip. The pattern depends on mutual feedback between auxin and cytokinins mediated by the PIN class of auxin efflux transporters and AHP6, an inhibitor of cytokinin signalling ...
Sedeer el-Showk, Hanna Help-Rinta-Rahko, Tiina Blomster, Riccardo Siligato, Athanasius F M Marée, Ari Pekka Mähönen, Verônica A Grieneisen   +6 more
doaj   +1 more source

A family of auxin conjugate hydrolases from Solanum lycopersicum and analysis of their roles in flower pedicel abscission

BMC Plant Biology, 2019
Background Auxin conjugates are hydrolyzed to release free auxin to ensure defined cellular auxin levels or gradients within tissues for proper development or response to environmental signals.
Xin Fu, Zihang Shi, Yun Jiang, Lingling Jiang, Mingfang Qi, Tao Xu, Tianlai Li   +6 more
doaj   +1 more source

A magnetically enabled simulation of microgravity represses the auxin response during early seed germination on a microfluidic platform

Microsystems & Nanoengineering, 2022
For plants on Earth, the phytohormone auxin is essential for gravitropism-regulated seedling establishment and plant growth. However, little is known about auxin responses under microgravity conditions due to the lack of a tool that can provide an ...
Jing Du, Lin Zeng, Zitong Yu, Sihui Chen, Xi Chen, Yi Zhang, Hui Yang   +6 more
doaj   +1 more source

Temporal integration of auxin information for the regulation of patterning

eLife, 2020
Positional information is essential for coordinating the development of multicellular organisms. In plants, positional information provided by the hormone auxin regulates rhythmic organ production at the shoot apex, but the spatio-temporal dynamics of ...
Carlos S Galvan-Ampudia, Guillaume Cerutti, Jonathan Legrand, G. Brunoud, Raquel Martin-Arevalillo, Romain Azais, V. Bayle, S. Moussu, Christian Wenzl, Y. Jaillais, J. Lohmann, C. Godin, T. Vernoux   +12 more
semanticscholar   +1 more source

The Biphasic Root Growth Response to Abscisic Acid in Arabidopsis Involves Interaction with Ethylene and Auxin Signalling Pathways

Frontiers in Plant Science, 2017
Exogenous abscisic acid (ABA) is known to either stimulate or inhibit root growth, depending on its concentration. In this study, the roles of ethylene and auxin in this biphasic effect of ABA on root elongation were investigated using chemical ...
Xiaoqing Li, Lin Chen, Brian G. Forde, William J. Davies   +3 more
doaj   +1 more source

The Roles of Auxin Biosynthesis YUCCA Gene Family in Plants

International Journal of Molecular Sciences, 2019
Auxin plays essential roles in plant normal growth and development. The auxin signaling pathway relies on the auxin gradient within tissues and cells, which is facilitated by both local auxin biosynthesis and polar auxin transport (PAT).
Xu Cao, Honglei Yang, Chunqiong Shang, Sang-Yong Ma, Li Liu, Jialing Cheng   +5 more
semanticscholar   +1 more source

A phosphorylation-based switch controls TAA1-mediated auxin biosynthesis in plants

Nature Communications, 2020
Auxin determines the developmental fate of plant tissues, and local auxin concentration is precisely controlled. The role of auxin transport in modulating local auxin concentration has been widely studied but the regulation of local auxin biosynthesis is
Qian Wang, Qian Wang, Guochen Qin, Min Cao, Min Cao, Rong Chen, Yuming He, Liyuan Yang, Zhejun Zeng, Yongqiang Yu, Yangtao Gu, Weiman Xing, W. A. Tao, Tongda Xu   +13 more
semanticscholar   +1 more source

Auxin controls the division of root endodermal cells [PDF]

, 2021
Deok Hyun Seo, Haewon Jeong, Yang Do Choi, Geupil Jang   +3 more
openalex   +1 more source

Regulation of polar auxin transport by AtPIN1 in Arabidopsis vascular tissue.

Science, 1998
Polar auxin transport controls multiple developmental processes in plants, including the formation of vascular tissue. Mutations affecting the PIN-FORMED (PIN1) gene diminish polar auxin transport in Arabidopsis thaliana inflorescence axes.
L. Gälweiler, C. Guan, Andreas Müller, E. Wisman, K. Mendgen, A. Yephremov, K. Palme   +6 more
semanticscholar   +1 more source

Developmental Roles of AUX1/LAX Auxin Influx Carriers in Plants

Frontiers in Plant Science, 2019
Plant hormone auxin regulates several aspects of plant growth and development. Auxin is predominantly synthesized in the shoot apex and developing leaf primordia and from there it is transported to the target tissues e.g. roots.
R. Swarup, R. Bhosale
semanticscholar   +1 more source