scholarly journals Nitric oxide is essential for vesicle formation and trafficking in Arabidopsis root hair growth

2012 ◽  
Vol 63 (13) ◽  
pp. 4875-4885 ◽  
Author(s):  
M. C. Lombardo ◽  
L. Lamattina
Keyword(s):  
Nitric Oxide ◽  
Root Hair ◽  
Hair Growth ◽  
Vesicle Formation ◽  
Arabidopsis Root ◽  
Root Hair Growth

scholarly journals Extracellular ATP and nitric oxide signaling pathways regulate redox-dependent responses associated to root hair growth in etiolated Arabidopsis seedlings

2010 ◽  
Vol 5 (6) ◽  
pp. 698-701 ◽  
Author(s):  
María Cecilia Terrile ◽  
Claudia Virginia Tonón ◽  
María José Iglesias ◽  
Lorenzo Lamattina ◽  
Claudia Anahí Casalongué
Keyword(s):  
Nitric Oxide ◽  
Signaling Pathways ◽  
Root Hair ◽  
Hair Growth ◽  
Extracellular Atp ◽  
Nitric Oxide Signaling ◽  
Root Hair Growth

scholarly journals Multi-Walled Carbon Nanotubes Can Promote Brassica napus L. and Arabidopsis thaliana L. Root Hair Development through Nitric Oxide and Ethylene Pathways

2020 ◽  
Vol 21 (23) ◽  
pp. 9109
Author(s):  
Gan Zhao ◽  
Yingying Zhao ◽  
Wang Lou ◽  
Dyaaaldin Abdalmegeed ◽  
Rongzhan Guan ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Carbon Nanotubes ◽  
Root Hair ◽  
Hair Growth ◽  
Root Hair Development ◽  
Multi Walled Carbon Nanotubes ◽  
Root Hair Growth ◽  
Hair Development ◽  
Walled Carbon Nanotubes ◽  
Hair Morphogenesis

Here, we report that multi-walled carbon nanotubes (MWCNTs) can promote plant root hair growth in the species analyzed in this study; however, low and excessive concentrations of MWCNTs had no significant effect or even an inhibiting influence. Further results show that MWCNTs can enter rapeseed root cells. Meanwhile, nitrate reductase (NR)-dependent nitric oxide (NO) and ethylene syntheses, as well as root hair formation, were significantly stimulated by MWCNTs. Transcription of root hair growth-related genes were also modulated. The above responses were sensitive to the removal of endogenous NO or ethylene with a scavenger of NO or NO/ethylene synthesis inhibitors. Pharmacological and molecular evidence suggested that ethylene might act downstream of NR-dependent NO in MWCNTs-induced root hair morphogenesis. Genetic evidence in Arabidopsis further revealed that MWCNTs-triggered root hair growth was abolished in ethylene-insensitive mutants ein2-5 and ein3-1, and NR mutant nia1/2, but not in noa1 mutant. Further data placed NO synthesis linearly before ethylene production in root hair development triggered by MWCNTs. The above findings thus provide some insights into the molecular mechanism underlying MWCNTs control of root hair morphogenesis.

scholarly journals Early Arabidopsis root hair growth stimulation by pathogenic strains of Pseudomonas syringae

2017 ◽  
Vol 120 (3) ◽  
pp. 437-446 ◽  
Author(s):  
Tamara Pečenková ◽  
Martin Janda ◽  
Jitka Ortmannová ◽  
Vladimíra Hajná ◽  
Zuzana Stehlíková ◽  
...  
Keyword(s):  
Pseudomonas Syringae ◽  
Root Hair ◽  
Hair Growth ◽  
Growth Stimulation ◽  
Arabidopsis Root ◽  
Root Hair Growth

scholarly journals Multi-Walled Carbon Nanotubes can Promote Root Hair Development Through Nitric Oxide and Ethylene Pathways

2020 ◽  
Author(s):  
Gan Zhao ◽  
Yingying Zhao ◽  
Wang Lou ◽  
Dyaaaldin Abdalmegeed ◽  
Rongzhan Guan ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Carbon Nanotubes ◽  
Root Hair ◽  
Hair Growth ◽  
Plant Root ◽  
Molecular Data ◽  
Root Cells ◽  
Root Hair Development ◽  
Root Hair Growth ◽  
Hair Development

Abstract Background: Although carbon nanotubes (CNTs) have the risk of polluting the ecological system, it still cannot deny its huge potential in agriculture. Studying the effects of CNTs on plant growth will help to make new assessments of the application of CNTs in agriculture. Results: Here, we observed that the stimulation of plant root hair growth triggered by multi-walled carbon nanotube (MWCNTs) with appropriate concentrations is a universal event; however, low or excessive had no significant effect or even inhibition. Further results showed that MWCNTs could enter rapeseed root cells. Meanwhile, nitrate reductase (NR)-dependent nitric oxide (NO) and ethylene syntheses, as well as root hair formation were significantly stimulated by MWCNTs. Transcription of root hair growth related genes were also modulated. Above responses were obviously blocked by the removal of endogenous NO and ethylene with a scavenger of NO or NO/ethylene synthetic inhibitors. Similarly, MWCNTs-triggered root hair growth was obviously impaired in ein2-5 and ein3-1, two ethylene-insensitive mutants, and nia1/2, a nitric reductase defective mutant, but not in noa1 mutant, with impaired in NO-associated protein 1. Further molecular data placed NR-dependent NO synthesis linearly before ethylene production in root hair development triggered by MWCNTs.Conclusion: Above results revealed that MWCNTs could promote root hair growth. Ethylene and NR-dependent NO were required for MWCNTs-induced root hair morphogenesis via regulating genes related to root hair development, and ethylene might act downstream of NO in this process. Since root hair is one of important components for root organogenesis, above findings open a new window for the possible usage of CNTs in agriculture.

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