Imaging of Dynamic Ion Signaling During Root Gravitropism

2015 ◽  
pp. 43-55
Author(s):  
Gabriele B. Monshausen
Keyword(s):  
Root Gravitropism

Root gravitropism

BioEssays ◽  
1995 ◽  
Vol 17 (2) ◽  
pp. 119-127 ◽  
Author(s):  
Patrick H. Masson
Keyword(s):  
Root Gravitropism

ROS in root gravitropism: the auxin messengers?

2001 ◽  
Vol 6 (12) ◽  
pp. 556 ◽  
Author(s):  
Emilio Cervantes
Keyword(s):  
Root Gravitropism

FERONIAregulates auxin‐mediated lateral root development and primary root gravitropism

FEBS Letters ◽  
2018 ◽  
Vol 593 (1) ◽  
pp. 97-106 ◽  
Author(s):  
QingKun Dong ◽  
ZhiWei Zhang ◽  
YuTing Liu ◽  
Li‐Zhen Tao ◽  
HuiLi Liu
Keyword(s):  
Root Development ◽  
Lateral Root ◽  
Primary Root ◽  
Lateral Root Development ◽  
Root Gravitropism

scholarly journals A type III ACC synthase, ACS7, is involved in root gravitropism in Arabidopsis thaliana

2013 ◽  
Vol 64 (14) ◽  
pp. 4343-4360 ◽  
Author(s):  
Shih-Jhe Huang ◽  
Chia-Lun Chang ◽  
Po-Hsun Wang ◽  
Min-Chieh Tsai ◽  
Pang-Hung Hsu ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Acc Synthase ◽  
Type Iii ◽  
Root Gravitropism

scholarly journals ACORBA: Automated workflow to measure Arabidopsis thaliana root tip angle dynamic

2021 ◽  
Author(s):  
Nelson BC Serre ◽  
Matyas Fendrych
Keyword(s):  
Plant Root ◽  
Automated Image Analysis ◽  
Root Tip ◽  
Spatiotemporal Resolution ◽  
Bending Angle ◽  
Root Angle ◽  
Root Gravitropism ◽  
Microscopy Data ◽  
Automated Software ◽  
Over Time

Plants respond to the surrounding environment in countless ways. One of these responses is their ability to sense and orient their root growth toward the gravity vector. Root gravitropism is studied in many laboratories as a hallmark of auxin-related phenotypes. However, manual analysis of images and microscopy data is known to be subjected to human bias. This is particularly the case for manual measurements of root bending as the selection lines to calculate the angle are set subjectively. Therefore, it is essential to develop and use automated or semi-automated image analysis to produce reproducible and unbiased data. Moreover, the increasing usage of vertical-stage microscopy in plant root biology yields gravitropic experiments with an unprecedented spatiotemporal resolution. To this day, there is no available solution to measure root bending angle over time for vertical-stage microscopy. To address these problems, we developed ACORBA (Automatic Calculation Of Root Bending Angles), a fully automated software to measure root bending angle over time from vertical-stage microscope and flatbed scanner images. Moreover, the software can be used semi-automated for camera, mobile phone or stereomicroscope images. ACORBA represents a flexible approach based on both traditional image processing and deep machine learning segmentation to measure root angle progression over time. By its automated nature, the workflow is limiting human interactions and has high reproducibility. ACORBA will support the plant biologist community by reducing time and labor and by producing quality results from various kinds of inputs.

scholarly journals Genetic analysis of the Arabidopsis TIR1/AFB auxin receptors reveals both overlapping and specialized functions

eLife ◽  
2020 ◽  
Vol 9 ◽  
Author(s):  
Michael J Prigge ◽  
Matthieu Platre ◽  
Nikita Kadakia ◽  
Yi Zhang ◽  
Kathleen Greenham ◽  
...  
Keyword(s):  
Genetic Analysis ◽  
Early Embryo ◽  
Wild Type ◽  
The Family ◽  
Dependent Inhibition ◽  
Root Gravitropism ◽  
Specialized Function ◽  
Mutant Lines

The TIR1/AFB auxin co-receptors mediate diverse responses to the plant hormone auxin. The Arabidopsis genome encodes six TIR1/AFB proteins representing three of the four clades that were established prior to angiosperm radiation. To determine the role of these proteins in plant development we performed an extensive genetic analysis involving the generation and characterization of all possible multiply-mutant lines. We find that loss of all six TIR1/AFB proteins results in early embryo defects and eventually seed abortion, and yet a single wild-type allele of TIR1 or AFB2 is sufficient to support growth throughout development. Our analysis reveals extensive functional overlap between even the most distantly related TIR1/AFB genes except for AFB1. Surprisingly, AFB1 has a specialized function in rapid auxin-dependent inhibition of root growth and early phase of root gravitropism. This activity may be related to a difference in subcellular localization compared to the other members of the family.

scholarly journals Transcriptional regulation of MdPIN3 and MdPIN10 by MdFLP during apple self-rooted stock adventitious root gravitropism

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Zenghui Wang ◽  
Jialin Li ◽  
Yunfei Mao ◽  
Manman Zhang ◽  
Rong Wang ◽  
...  
Keyword(s):  
Transcriptional Regulation ◽  
Adventitious Root ◽  
Root Gravitropism

Negative gravitropic response of roots directs auxin flow to control root gravitropism

2019 ◽  
Vol 42 (8) ◽  
pp. 2372-2383 ◽  
Author(s):  
Liangfa Ge ◽  
Rujin Chen
Keyword(s):  
Gravitropic Response ◽  
Control Root ◽  
Root Gravitropism
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