scholarly journals Formation of a barrier to radial oxygen loss in L-type lateral roots of rice

Plant Root ◽  
2020 ◽  
Vol 14 (0) ◽  
pp. 33-41
Author(s):  
Siti Noorrohmah ◽  
Hirokazu Takahashi ◽  
Mikio Nakazono
Keyword(s):  
Lateral Roots ◽  
Radial Oxygen Loss ◽  
Oxygen Loss

A lack of aerenchyma and high rates of radial oxygen loss from the root base contribute to the waterlogging intolerance of Brassica napus

1999 ◽  
Vol 26 (1) ◽  
pp. 87 ◽  
Author(s):  
L.A.C.J. Voesenek ◽  
W. Armstrong ◽  
G.M. Bögemann ◽  
T.D. Colmer ◽  
M.P. McDonald
Keyword(s):  
Brassica Napus ◽  
Lateral Roots ◽  
Biomass Accumulation ◽  
Radial Oxygen Loss ◽  
Low Oxygen ◽  
Root Porosity ◽  
Oxygen Loss ◽  
Basal Portion ◽  
Pre Treatment ◽  
Oxygen Profiles

The morphology and physiology of the response of two cultivars of Brassica napus to an anaerobic root medium was investigated. The cultivars Chikuzen and Topas showed a large reduction in growth rate when their roots were exposed to a de-oxygenated stagnant nutrient solution containing 0.1% w/v agar. Older seedlings (11 d old) were more sensitive to stagnant agar, expressed as biomass accumulation, than younger ones (5 d old). Brassica napus was characterized by a constitutively low root porosity (3–5%), typical for plant species with a low tolerance to waterlogging. A hypoxia pre- treatment (16 h; 2.25% O2) before exposure to de-oxygenated stagnant agar had no effect on the final number or length of lateral roots and adventitious roots. Brassica napus cv. Chikuzen is characterized by radial oxygen loss being most at the basal portion of the root, when a strong oxygen sink surrounds the root. Oxygen profiles through laterals of Brassica napus cv. Chikuzen show a typical pattern with low oxygen concentrations in the stele and somewhat higher levels in the cortex. Despite the continuum of intercellular air spaces in the root cortical tissue the lack of aerenchyma and therefore low rates of internal oxygen diffusion restricts root growth in anaerobic media and presumably contributes to the sensitivity of Brassica napus to waterlogging.

Lateral roots, in addition to adventitious roots, form a barrier to radial oxygen loss in Zea nicaraguensis and a chromosome segment introgression line in maize

2020 ◽  
Vol 229 (1) ◽  
pp. 94-105 ◽  
Author(s):  
Ole Pedersen ◽  
Yohei Nakayama ◽  
Hiroki Yasue ◽  
Yusuke Kurokawa ◽  
Hirokazu Takahashi ◽  
...  
Keyword(s):  
Adventitious Roots ◽  
Lateral Roots ◽  
Introgression Line ◽  
Chromosome Segment ◽  
Radial Oxygen Loss ◽  
Oxygen Loss

Radial oxygen loss, a plastic property of dune slack plant species

2005 ◽  
Vol 271 (1-2) ◽  
pp. 351-364 ◽  
Author(s):  
Peter M. van. Bodegom ◽  
Marleen de Kanter ◽  
Chris Bakker Rien Aerts
Keyword(s):  
Plant Species ◽  
Plastic Property ◽  
Dune Slack ◽  
Radial Oxygen Loss ◽  
Oxygen Loss

Cadmium accumulation in and tolerance of rice (Oryza sativa L.) varieties with different rates of radial oxygen loss

2011 ◽  
Vol 159 (6) ◽  
pp. 1730-1736 ◽  
Author(s):  
M.Y. Wang ◽  
A.K. Chen ◽  
M.H. Wong ◽  
R.L. Qiu ◽  
H. Cheng ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Cadmium Accumulation ◽  
Radial Oxygen Loss ◽  
Oxygen Loss

Rice acclimation to soil flooding: Low concentrations of organic acids can trigger a barrier to radial oxygen loss in roots

2019 ◽  
Vol 42 (7) ◽  
pp. 2183-2197 ◽  
Author(s):  
Timothy David Colmer ◽  
Lukasz Kotula ◽  
Al Imran Malik ◽  
Hirokazu Takahashi ◽  
Dennis Konnerup ◽  
...  
Keyword(s):  
Organic Acids ◽  
Radial Oxygen Loss ◽  
Oxygen Loss ◽  
Soil Flooding ◽  
Low Concentrations

The ability of aquatic macrophytes to increase root porosity and radial oxygen loss determines their resistance to sediment anoxia

2012 ◽  
Vol 46 (2) ◽  
pp. 191-200 ◽  
Author(s):  
Damien G. Lemoine ◽  
Florian Mermillod-Blondin ◽  
Marie-Hélène Barrat-Segretain ◽  
Corinne Massé ◽  
Emmanuel Malet
Keyword(s):  
Aquatic Macrophytes ◽  
Radial Oxygen Loss ◽  
Root Porosity ◽  
Oxygen Loss ◽  
Sediment Anoxia
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