Tomato plant growth with continuous exposure to sulphur dioxide and nitrogen dioxide

Marie, B. A.; Ormrod, D. P.

doi:10.1016/0143-1471(84)90015-1

Cited by 33 publications

(9 citation statements)

References 16 publications

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“…Thus, the supplied NO, that caused induction of NR in the needles may have been acting as a nitrogen fertilizer. This assumption is supported by reports on growth increments of plants exposed to NO2 (Yoneyama et al 1980, Marie andOrmrod 1984). However, growth reductions have also been reported (Thompson et al 1970, Ashenden andMansfield 1978), demonstrating that NO2" and NO,^ can function both as severe phytotoxic agents and as nutrients, depending on the dosage and the ability of a plant to metabolize NO2 and NO, (Rogers and Campbell 1979) In conclusion, the present investigation demonstrates that fumigation of pine seedlings with low concentrations of NO, as well as NO3 given to detached shoots results in induction of NR in the needles.…”

Section: Compoundsupporting

confidence: 60%

Induction of nitrate reductase in needles of Scots pine seedlings by NO_X and NO₃⁻

Wingsle¹,

Näsholm²,

Lundmark

et al. 1987

Physiologia Plantarum

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The possibility to induce nitrate reductase (NR; EC 1.6.6.2) in needles of Scots pine (Pinus sylvestris L.) seedlings was studied. The NR activity was measured by an in vivo assay. Although increased NR activities were found in the roots after application of NO3−, no such increase could be detected in the needles. Detached seedlings placed in NO3− solution showed increasing NR activities with increasing NO3− concentrations. Exposure of seedlings to NOx (70–80 ppb NO2 and 8–12ppb NO) resulted in an increase of the NR activity from 10–20 nmol NO2− (g fresh weight)−1 h−1 to about 400 nmol NO2− (g fresh weight)−1 h−1. This level was reached after 2–4 days of exposure, thereafter the NR activity decreased to about 200 nmol NO2− (g fresh weight)−1 h−1. Analyses of free amino acids showed low concentrations of arginine and glutamine in NOx‐fumigated seedlings compared to corresponding controls.

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Section: Compoundsupporting

confidence: 60%

Induction of nitrate reductase in needles of Scots pine seedlings by NO_X and NO₃⁻

Wingsle¹,

Näsholm²,

Lundmark

et al. 1987

Physiologia Plantarum

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“…In the longer term (> 48 h), at low levels of NOg (or NO, or both), fumigation studies have usually reported overall reductions in growth but there are exceptions. Some species show positive growth effects with NOg alone (Fujiwara, 1973;Troiano & Leone, 1977;Marie & Ormrod, 1984;Okano et aL, 1985 fl;Sandhu & Gupta, 1989) but none have been observed with NO. Rather than relist the literature on growth effects, this review examines what is known about the uptake of these gases by plants.…”

Section: Introductionmentioning

confidence: 99%

Tansley Review No. 24 Why are atmospheric oxides of nitrogen usually phytotoxic and not alternative fertilizers?

1990

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SUMMARY Atmospheric pollution by the oxides of nitrogen, NO and NO2, can cause reductions in growth but rarely visible injury. This review considers their uptake into foliage, as well as their subsequent metabolism and physiology, and attempts to explain why these gases are often phytotoxic. The combined stresses of resisting cellular acidification, enhanced levels of nitrite (and ammonia), and the direct interference of the free radical ('N=O) with critical enzymes, reaction centres and regulatory mechanisms are thought to be the main reasons why oxides of nitrogen, especially NO, inhibit growth. If other air pollutants such as SO2 are also present with NO or NO2 then free radical‐induced injury, similar to that caused by O3 alone, also occurs.

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“…By day 4, leaf injury was visible and root fresh and dry weights were significantly reduced by the SO 2 + NO 2 treatment. The combination of 0.11 µl SO 2 + 0.11 µl NO 2 /liter for 2 weeks on tomato also caused a significant decrease in root growth without leaf fresh and dry weights diminishing at the same rate (Marie and Ormrod, 1984). Whitmore and Mansfield (1983) also observed that the combination of SO 2 + NO 2 decreased the partitioning of dry matter to the roots in Poa pratensis L. 'Monopoly'.…”

Section: Discussionmentioning

confidence: 94%

Sulfur Dioxide and Nitrogen Dioxide Meet Growth, Gas Exchange, and Water Relations of Potato Plants

Petitte¹,

Ormrod²

1992

jashs

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The effects of SO2 and NO2, singly and in combination, on the growth and physiology of nontuberizing Solarium tuberosum L. `Russet Burbank' plants were studied in controlled conditions. Plants were exposed to 0.11 μl SO2 and/or 0.11 μl NO2/liter for 24 hours a day up to 10 days. Statistically significant effects were observed mainly in the SO2+ NO2 treatments compared with the control plants. Leaf area was reduced from day 2 onward, and root fresh and dry weights were reduced from day 4 onward. Significant reductions in leaf and stem dry weights occurred on day 6. Net CO2 exchange rates were reduced for SO2 exposed compared with control plants beginning on day 3, while water loss rates were increased with SO2 + NO2 beginning on day 3. The increases in water loss rate were possibly due to the development of cuticular injury observed as abaxial glazing on the upper and middle canopy leaves. Leaf osmotic potential (π) of plants with SO2 + NO2 became more negative within the first 24 hours of the exposure. This reduction was accompanied by an increase in reducing sugar concentration. Xylem water potential was reduced in the mature and expanding leaflets by day 2 of the SO2 + NO2 exposure. The most sensitive aspect of the action of SO2 + NO2 appeared to be the increase in reducing sugars that affected osmotic potential in the leaves. Considering the retardation of root growth, these data suggest that the pollutant gases may have interfered with partitioning of dry matter from the leaves to the roots.

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Tomato plant growth with continuous exposure to sulphur dioxide and nitrogen dioxide

Cited by 33 publications

References 16 publications

Induction of nitrate reductase in needles of Scots pine seedlings by NO_X and NO₃⁻

Induction of nitrate reductase in needles of Scots pine seedlings by NO_X and NO₃⁻

Tansley Review No. 24 Why are atmospheric oxides of nitrogen usually phytotoxic and not alternative fertilizers?

Sulfur Dioxide and Nitrogen Dioxide Meet Growth, Gas Exchange, and Water Relations of Potato Plants

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Tomato plant growth with continuous exposure to sulphur dioxide and nitrogen dioxide

Cited by 33 publications

References 16 publications

Induction of nitrate reductase in needles of Scots pine seedlings by NOX and NO3−

Induction of nitrate reductase in needles of Scots pine seedlings by NOX and NO3−

Tansley Review No. 24 Why are atmospheric oxides of nitrogen usually phytotoxic and not alternative fertilizers?

Sulfur Dioxide and Nitrogen Dioxide Meet Growth, Gas Exchange, and Water Relations of Potato Plants

Contact Info

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Induction of nitrate reductase in needles of Scots pine seedlings by NO_X and NO₃⁻

Induction of nitrate reductase in needles of Scots pine seedlings by NO_X and NO₃⁻