NITRIC OXIDE ASSOCIATED PROTEIN1 (AtNOA1) is necessary for copper-induced lateral root elongation in Arabidopsis thaliana

2021 ◽  
pp. 104544
Author(s):  
Qing-ping Zhao ◽  
Jing Wang ◽  
Hong-ru Yan ◽  
Meng-ya Yang ◽  
Jin Wang ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Arabidopsis Thaliana ◽  
Lateral Root ◽  
Root Elongation

Differential Response of First-Order Lateral Root Elongation to Low Potassium Involves Nitric Oxide in Two Tobacco Cultivars

2017 ◽  
Vol 37 (1) ◽  
pp. 114-127 ◽  
Author(s):  
Wenjing Song ◽  
Ren Xue ◽  
Yao Song ◽  
Yang Bi ◽  
Zhihao Liang ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Lateral Root ◽  
Root Elongation ◽  
Differential Response ◽  
First Order ◽  
Low Potassium

scholarly journals Nitrate Regulates Maize Root Transcriptome through Nitric Oxide Dependent and Independent Mechanisms

2021 ◽  
Vol 22 (17) ◽  
pp. 9527
Author(s):  
Laura Ravazzolo ◽  
Sara Trevisan ◽  
Silvia Iori ◽  
Cristian Forestan ◽  
Mario Malagoli ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Gene Ontology ◽  
Transcription Factors ◽  
Functional Annotation ◽  
Lateral Root ◽  
Root Elongation ◽  
Primary Root ◽  
Maize Root ◽  
Molecular Signatures ◽  
Root Response

Maize root responds to nitrate by modulating its development through the coordinated action of many interacting players. Nitric oxide is produced in primary root early after the nitrate provision, thus inducing root elongation. In this study, RNA sequencing was applied to discover the main molecular signatures distinguishing the response of maize root to nitrate according to their dependency on, or independency of, nitric oxide, thus discriminating the signaling pathways regulated by nitrate through nitric oxide from those regulated by nitrate itself of by further downstream factors. A set of subsequent detailed functional annotation tools (Gene Ontology enrichment, MapMan, KEGG reconstruction pathway, transcription factors detection) were used to gain further information and the lateral root density was measured both in the presence of nitrate and in the presence of nitrate plus cPTIO, a specific NO scavenger, and compared to that observed for N-depleted roots. Our results led us to identify six clusters of transcripts according to their responsiveness to nitric oxide and to their regulation by nitrate provision. In general, shared and specific features for the six clusters were identified, allowing us to determine the overall root response to nitrate according to its dependency on nitric oxide.

scholarly journals Two Expansin Genes, AtEXPA4 and AtEXPB5, Are Redundantly Required for Pollen Tube Growth and AtEXPA4 Is Involved in Primary Root Elongation in Arabidopsis thaliana

Genes ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 249
Author(s):  
Weimiao Liu ◽  
Liai Xu ◽  
Hui Lin ◽  
Jiashu Cao
Keyword(s):  
Arabidopsis Thaliana ◽  
Pollen Tube ◽  
Pollen Tube Growth ◽  
Cell Walls ◽  
Root Elongation ◽  
Expression Patterns ◽  
Primary Root ◽  
Pollen Grains ◽  
Tube Growth ◽  
Cell Wall Binding

The growth of plant cells is inseparable from relaxation and expansion of cell walls. Expansins are a class of cell wall binding proteins, which play important roles in the relaxation of cell walls. Although there are many members in expansin gene family, the functions of most expansin genes in plant growth and development are still poorly understood. In this study, the functions of two expansin genes, AtEXPA4 and AtEXPB5 were characterized in Arabidopsis thaliana. AtEXPA4 and AtEXPB5 displayed consistent expression patterns in mature pollen grains and pollen tubes, but AtEXPA4 also showed a high expression level in primary roots. Two single mutants, atexpa4 and atexpb5, showed normal reproductive development, whereas atexpa4atexpb5 double mutant was defective in pollen tube growth. Moreover, AtEXPA4 overexpression enhanced primary root elongation, on the contrary, knocking out AtEXPA4 made the growth of primary root slower. Our results indicated that AtEXPA4 and AtEXPB5 were redundantly involved in pollen tube growth and AtEXPA4 was required for primary root elongation.

Tissue culture of Arabidopsis thaliana explants reveals a stimulatory effect of alkamides on adventitious root formation and nitric oxide accumulation

Plant Science ◽  
2008 ◽  
Vol 174 (2) ◽  
pp. 165-173 ◽  
Author(s):  
Juan Carlos Campos-Cuevas ◽  
Ramón Pelagio-Flores ◽  
Javier Raya-González ◽  
Alfonso Méndez-Bravo ◽  
Randy Ortiz-Castro ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Tissue Culture ◽  
Arabidopsis Thaliana ◽  
Adventitious Root ◽  
Root Formation ◽  
Adventitious Root Formation

scholarly journals Involvement of calmodulin in regulation of primary root elongation by N-3-oxo-hexanoyl homoserine lactone in Arabidopsis thaliana

2015 ◽  
Vol 5 ◽  
Author(s):  
Qian Zhao ◽  
Chao Zhang ◽  
Zhenhua Jia ◽  
Yali Huang ◽  
Haili Li ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Root Elongation ◽  
Primary Root ◽  
Homoserine Lactone

scholarly journals Nitric Oxide Mediated Transcriptome Profiling Reveals Activation of Multiple Regulatory Pathways in Arabidopsis thaliana

2016 ◽  
Vol 7 ◽  
Author(s):  
Adil Hussain ◽  
Bong-Gyu Mun ◽  
Qari M. Imran ◽  
Sang-Uk Lee ◽  
Teferi A. Adamu ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Arabidopsis Thaliana ◽  
Transcriptome Profiling ◽  
Regulatory Pathways

scholarly journals Arabidopsis thaliana AtUTr7 Encodes a Golgi-Localized UDP–Glucose/UDP–Galactose Transporter that Affects Lateral Root Emergence

2012 ◽  
Vol 5 (6) ◽  
pp. 1263-1280 ◽  
Author(s):  
Michael Handford ◽  
Cecilia Rodríguez-Furlán ◽  
Lorena Marchant ◽  
Marcelo Segura ◽  
Daniela Gómez ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Lateral Root

scholarly journals Cross–talk between nitric oxide and Ca2+in elevated CO2-induced lateral root formation

2013 ◽  
Vol 8 (2) ◽  
pp. e23106 ◽  
Author(s):  
Huan Wang ◽  
Yaofang Niu ◽  
Rushan Chai ◽  
Miao Liu ◽  
Yongsong Zhang
Keyword(s):  
Nitric Oxide ◽  
Elevated Co2 ◽  
Cross Talk ◽  
Lateral Root ◽  
Root Formation ◽  
Lateral Root Formation

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.

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