scholarly journals Gibberellin Regulates PIN-FORMED Abundance and Is Required for Auxin Transport–Dependent Growth and Development in Arabidopsis thaliana

2011 ◽  
Vol 23 (6) ◽  
pp. 2184-2195 ◽  
Author(s):  
Björn C. Willige ◽  
Erika Isono ◽  
René Richter ◽  
Melina Zourelidou ◽  
Claus Schwechheimer
Keyword(s):  
Arabidopsis Thaliana ◽  
Growth And Development ◽  
Auxin Transport ◽  
Dependent Growth

Influence of Sublethal Concentrations of Herbicides and Growth Regulators on Mouseearcress (Arabidopsis thaliana) Progeny

Weed Science ◽  
1985 ◽  
Vol 33 (4) ◽  
pp. 430-434 ◽  
Author(s):  
Ron Henzell ◽  
John Phillips ◽  
Peter Diggle
Keyword(s):  
Arabidopsis Thaliana ◽  
Electron Transport ◽  
Plant Growth ◽  
Growth Regulators ◽  
Growth And Development ◽  
Auxin Transport ◽  
Photosynthetic Electron Transport ◽  
Persistent Effect ◽  
Transport Inhibitors ◽  
Sublethal Concentrations

The influence of sublethal levels of a number of herbicides and plant growth regulators on the germinability of the seeds and the growth and development of seedlings of mouseearcress [Arabidopsis thaliana(L.) Heynh. ♯ ARBTH] was determined. Only 7 of the 22 chemicals tested had a persistent effect on progeny. Amitrole (3-amino-s-triazole) was one of the most effective compounds. It caused a characteristic bleaching only in shoot tips and pods in parent plants and appeared to act directly on the progeny by accumulation in the seed. Two auxin transport inhibitors, TIBA (2,3,5-triiodobenzoic acid) and CPII (5-O-carboxyphenyl-3-phenylisoxazole), and four of the six photosynthetic electron transport inhibitors included in the study also affected progeny. They appeared to act indirectly by interfering with seed development.

scholarly journals Variation in Expression and Protein Localization of the PIN Family of Auxin Efflux Facilitator Proteins in Flavonoid Mutants with Altered Auxin Transport in Arabidopsis thaliana

2004 ◽  
Vol 16 (7) ◽  
pp. 1898-1911 ◽  
Author(s):  
Wendy Ann Peer ◽  
Anindita Bandyopadhyay ◽  
Joshua J. Blakeslee ◽  
Srinivas N. Makam ◽  
Rujin J. Chen ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Auxin Transport ◽  
Protein Localization

scholarly journals Control of auxin-regulated root development by the Arabidopsis thaliana SHY2/IAA3 gene

Development ◽  
1999 ◽  
Vol 126 (4) ◽  
pp. 711-721 ◽  
Author(s):  
Q. Tian ◽  
J.W. Reed
Keyword(s):  
Arabidopsis Thaliana ◽  
Lateral Root ◽  
Tissue Specificity ◽  
Plant Hormone ◽  
Root Formation ◽  
Auxin Transport ◽  
Feedback Regulation ◽  
Loss Of Function ◽  
Leaf Formation ◽  
Induced Genes

The plant hormone auxin controls many aspects of development and acts in part by inducing expression of various genes. Arabidopsis thaliana semidominant shy2 (short hypocotyl) mutations cause leaf formation in dark-grown plants, suggesting that SHY2 has an important role in regulating development. Here we show that the SHY2 gene encodes IAA3, a previously known member of the Aux/IAA family of auxin-induced genes. Dominant shy2 mutations cause amino acid changes in domain II, conserved among all members of this family. We isolated loss-of-function shy2 alleles including a putative null mutation. Gain-of-function and loss-of-function shy2 mutations affect auxin-dependent root growth, lateral root formation, and timing of gravitropism, indicating that SHY2/IAA3 regulates multiple auxin responses in roots. The phenotypes suggest that SHY2/IAA3 may activate some auxin responses and repress others. Models invoking tissue-specificity, feedback regulation, or control of auxin transport may explain these results.

scholarly journals EIR1, a root-specific protein involved in auxin transport, is required for gravitropism in Arabidopsis thaliana

1998 ◽  
Vol 12 (14) ◽  
pp. 2175-2187 ◽  
Author(s):  
C. Luschnig ◽  
R. A. Gaxiola ◽  
P. Grisafi ◽  
G. R. Fink
Keyword(s):  
Arabidopsis Thaliana ◽  
Auxin Transport ◽  
Specific Protein

The Effect of Ethylene on the Growth and Development of Wild-type and Mutant Arabidopsis thaliana (L.) Heynh

1991 ◽  
Vol 68 (1) ◽  
pp. 55-61 ◽  
Author(s):  
N. V. J. HARPHAM ◽  
A. W. BERRY ◽  
E. M. KNEE ◽  
G. ROVEDA-HOYOS ◽  
I. RASKIN ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Growth And Development ◽  
Wild Type

scholarly journals Redox-Responsive Transcription Factor 1 (RRFT1) Is Involved in Extracellular ATP-Regulated Arabidopsis thaliana Seedling Growth

2020 ◽  
Vol 61 (4) ◽  
pp. 685-698 ◽  
Author(s):  
Ruojia Zhu ◽  
Xiaoxia Dong ◽  
Yingying Xue ◽  
Jiawei Xu ◽  
Aiqi Zhang ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Transcription Factor ◽  
Adenosine Triphosphate ◽  
Seedling Growth ◽  
Growth And Development ◽  
High Throughput Sequencing ◽  
Root Tip ◽  
Loss Of Function ◽  
Redox Responsive ◽  
Transcription Factor 1

Abstract Extracellular adenosine triphosphate (eATP) is an apoplastic signaling molecule that plays an essential role in the growth and development of plants. Arabidopsis seedlings have been reported to respond to eATP; however, the downstream signaling components are still not well understood. In this study, we report that an ethylene-responsive factor, Redox-Responsive Transcription Factor 1 (RRTF1), is involved in eATP-regulated Arabidopsis thaliana seedling growth. Exogenous adenosine triphosphate inhibited green seedling root growth and induced hypocotyl bending of etiolated seedlings. RRTF1 loss-of-function mutant (rrtf1) seedlings showed decreased responses to eATP, while its complementation or overexpression led to recovered or increased eATP responsiveness. RRTF1 was expressed rapidly after eATP stimulation and then migrated into the nuclei of root tip cells. eATP-induced auxin accumulation in root tip or hypocotyl cells was impaired in rrtf1. Chromatin immunoprecipitation and high-throughput sequencing results indicated that eATP induced some genes related to cell growth and development in wild type but not in rrtf1 cells. These results suggest that RRTF1 may be involved in eATP signaling by regulating functional gene expression and cell metabolism in Arabidopsis seedlings.

Into the Evening: Complex Interactions in the Arabidopsis circadian clock

2016 ◽  
Author(s):  
He Huang ◽  
Dmitri A. Nusinow
Keyword(s):  
Arabidopsis Thaliana ◽  
Circadian Clock ◽  
Growth And Development ◽  
Clock Genes ◽  
Day Length ◽  
Interacting Proteins ◽  
Plant Growth And Development ◽  
Complex Interactions ◽  
New Findings ◽  
Direct Regulation

AbstractIn Arabidopsis thaliana, an assembly of proteins named the evening complex (EC) has been established as an essential component of the circadian clock with conserved functions in regulating plant growth and development. Recent studies identifying EC-regulated genes and EC-interacting proteins have expanded our understanding of EC function. In this review, we focus on new progress uncovering how the EC contributes to the circadian network through the integration of environmental inputs and the direct regulation of key clock genes. We also summarize new findings of how the EC directly regulates clock outputs, such as day-length dependent and thermoresponsive growth, and provide new perspectives on future experiments to address unsolved questions related to the EC.

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