Characteristics of ammonium uptake by rice cells in suspension culture

Karasawa, Toshihiko; Hayakawa, Toshihiko; Mae, Tadahiko; Ojima, Kunihiko; Yamaya, Tornoyuki

doi:10.1080/00380768.1994.10413307

Cited by 9 publications

(6 citation statements)

References 16 publications

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“…A second often-cited paper in this context (Kleiner 1981) in fact provides little evidence in favour of NH 3 penetration, presenting instead an equivocal case for fluxes across higher plant membranes; this uncertainty was due to the lack of experimental evidence available at the time. This lack has clearly been superseded by more recent work in the field; the preponderance of recent experimental evidence supports the notion that NH 4 + is the principal chemical species traversing plant plasma membranes under most conditions a, b, Smith 1982, Ullrich et al 1984, Schlee and Komor 1986, Karasawa et al 1994, Ninneman et al 1994, Ryan and Walker 1994, Herrmann and Felle 1995a, 1996, Nielsen and Schjoerring 1998, von Wirén et al 2000, Britto et al 2001a, b, Cerezo et al 2001, and that cytosolic accumulation of NH 4 + , as measured by at least three different techniques (NMR, compartmental analysis, and micro-electrodes; see Lee and Ratcliffe 1991a, Wells and Miller 2000, for examples of each), is substantial enough to indicate that loss of NH 4 + via simple diffusion of NH 3 is not significantly high.…”

Section: Energetics and Primary Nh 4 + Acquisitionmentioning

confidence: 92%

NH4+ toxicity in higher plants: a critical review

Britto

Kronzucker

2002

Journal of Plant Physiology

1,523

1,110

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Section: Energetics and Primary Nh 4 + Acquisitionmentioning

confidence: 92%

NH4+ toxicity in higher plants: a critical review

Britto

Kronzucker

2002

Journal of Plant Physiology

1,523

1,110

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“…It was also found that pH values of urban and background soils were different (on average, 6 for unpolluted sites and 7 for city). Karasawa et al (1994), showed that increase of pH values of soil from 4 to 7 promotes significant increase in ammonium uptake by rice cells. The variations in soil pH probably led to a change in europium mobility and thus to increased europium accumulation in plant tissues, even though the small variation in pH in soils did not cause a difference in the europium content of the soils.…”

Section: Relationship Between Potassium and Calcium In Roots (W) And mentioning

confidence: 98%

Behaviour of Chemical Elements in Plants and Soils

Shtangeeva

1995

Chemistry and Ecology

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Neutron activation analysis was used for the determination of the elemental composition of different plants and soils. Variations in concentrations of elements during the day were found. Mean concentrations, standard deviations and relationships between elements in soils and different parts of plants were studied. It was shown that the behaviour of chemical elements in samples from urban and unpolluted areas have significant differences.

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“…Moreover, the experiments in which NH 4 + metabolism and growth rate are analyzed in rice plants have reported that the decrease in energy cost for FAC does not correlate with the optimized growth (Balkos et al 2010). This low FAC in rice plants may reflect that they have evolved to be NH 4 + tolerant without any energy cost to maintain the NH 4 + balance across the plasma membrane (Karasawa et al 1994;Kronzucker et al 1999Kronzucker et al , 2001).…”

Section: Differences In Effects Of Nh 4 + On Respiration Between Terrmentioning

confidence: 99%

Tolerant mechanisms to O2 deficiency under submergence conditions in plants

Nakamura

Noguchi

2020

J Plant Res

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Wetland plants can tolerate long-term strict hypoxia and anoxic conditions and the subsequent re-oxidative stress compared to terrestrial plants. During O 2 deficiency, both wetland and terrestrial plants use NAD(P) + and ATP that are produced during ethanol fermentation, sucrose degradation, and major amino acid metabolisms. The oxidation of NADH by nonphosphorylating pathways in the mitochondrial respiratory chain is common in both terrestrial and wetland plants. As the wetland plants enhance and combine these traits especially in their roots, they can survive under long-term hypoxic and anoxic stresses. Wetland plants show two contrasting strategies, low O 2 escape and low O 2 quiescence strategies (LOES and LOQS, respectively). Differences between two strategies are ascribed to the different signaling networks related to phytohormones. During O 2 deficiency, LOES-type plants show several unique traits such as shoot elongation, aerenchyma formation and leaf acclimation, whereas the LOQS-type plants cease their growth and save carbohydrate reserves. Many wetland plants utilize NH 4 + as the nitrogen (N) source without NH 4 +-dependent respiratory increase, leading to efficient respiratory O 2 consumption in roots. In contrast, some wetland plants with high O 2 supply system efficiently use NO 3 − from the soil where nitrification occurs. The differences in the N utilization strategies relate to the different systems of anaerobic ATP production, the NO 2 −driven ATP production and fermentation. The different N utilization strategies are functionally related to the hypoxia or anoxia tolerance in the wetland plants.

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Characteristics of ammonium uptake by rice cells in suspension culture

Cited by 9 publications

References 16 publications

NH4+ toxicity in higher plants: a critical review

NH4+ toxicity in higher plants: a critical review

Behaviour of Chemical Elements in Plants and Soils

Tolerant mechanisms to O2 deficiency under submergence conditions in plants

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