Growth and Nutrient Accumulation as Controlled by Oxygen Supply to Plant Roots

Hopkins, H. T.; Specht, Alston W.; Hendricks, S. B.

doi:10.1104/pp.25.2.193

Cited by 82 publications

(27 citation statements)

References 9 publications

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“…After 3 days, the biomass had increased, but this increase was not significant ( unpublished results) and was even accompanied by a slight decrease in biomass. This result agrees with the observation of Hopkins et al (1950) on the same plant and over the same period of oxygen deprivation. After the 6th day of asphyxia, visible symptoms appear in the aerial part in the form of wilting and defoliation preceding the plant's death.…”

Section: Biomass and Mineral Compositionsupporting

confidence: 95%

Effect of oxygen deficiency on uptake of water and mineral nutrients by tomato plants in soilless culture

Morard

Lacoste

Silvestre

2000

Journal of Plant Nutrition

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The consequences of oxygen deficiency on the root system of tomato plants in soilless culture at the beginning of the flowering stage were assessed over a 72-hour period. The study of water uptake and oxygen depletion in the medium was conducted using a process of continuous computerized data processing. Fluctuations in composition of the nutrient solution were monitored every two hours through an analysis of samples. Oxygen deficiency of the nutrient solution had immediate effects on the water and nutrient uptake of the whole plant. The root asphyxia of a tomato plant caused a 20 to 30% decrease of water uptake after 48 hours. After 10 hours it also leads to the end of the uptake process of the nutrients except nitrates. Potassium (K) was the nutrient most sensitive to oxygen deprivation since an efflux into the culture medium was observed after only 4 hours of deprivation. Nitrate uptake was the least affected by oxygen deficiency. The persistent appearance of nitrite in the culture medium 12 hours after the beginning of the asphyxia process could be caused by the reduction of nitrates by the root system of the tomato plant. The plant would use the oxygen from the reduction reaction to 1063 1064 MORARD, LACOSTE, AND SILVESTRE ensure the water and nitrate uptake processes which are the two most important limiting factors of plant nutrition. Thus it seems that under root asphyxia conditions the plant would adapt to the new condition by relying on a metabolism of the "nitrate respiration" type.

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Section: Biomass and Mineral Compositionsupporting

confidence: 95%

Effect of oxygen deficiency on uptake of water and mineral nutrients by tomato plants in soilless culture

Morard

Lacoste

Silvestre

2000

Journal of Plant Nutrition

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“…The resulting Al-cations (Al (III)) are the pH-determining acids in soils at pH values between 3.0 and 5.0 (Vanbreemen et al, 1983). High Al (III)-concentrations are toxic to plants (Kochian, 1995), and low concentration of O 2 at the vent site, can lead to the asphyxiation of plant roots (Hopkins et al, 1950). A high Al (III) and a low O 2 content probably causes the absence of plants in the high-flux core of the CO 2 vent.…”

Section: General Changes In the Soil Environment Due To High Co 2 Conmentioning

confidence: 99%

Soil microbial community changes as a result of long-term exposure to a natural CO2 vent

Oppermann

Michaelis

Blumenberg

et al. 2010

Geochimica et Cosmochimica Acta

145

101

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“…In some species, xylem parenchyma cells become specialized as transfer cells (17). Either mechanism of Na+ exclusion might in principle be impaired by interference in energy-dependent ion transport, and it is noteworthy that abnormal amounts of Na4 uncoupler such as 2,4-dinitrophenol (24) or in anaerobic (02 free) nutrient solution (4,9).…”

mentioning

confidence: 99%

Oxygen-Dependent Exclusion of Sodium Ions from Shoots by Roots of Zea mays (cv Pioneer 3906) in Relation to Salinity Damage

Drew¹,

Läuchli²

1985

Plant Physiol.

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Growth and Nutrient Accumulation as Controlled by Oxygen Supply to Plant Roots

Cited by 82 publications

References 9 publications

Effect of oxygen deficiency on uptake of water and mineral nutrients by tomato plants in soilless culture

Effect of oxygen deficiency on uptake of water and mineral nutrients by tomato plants in soilless culture

Soil microbial community changes as a result of long-term exposure to a natural CO2 vent

Oxygen-Dependent Exclusion of Sodium Ions from Shoots by Roots of Zea mays (cv Pioneer 3906) in Relation to Salinity Damage

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