Acute and Subacute Damage to Vegetation by Ammonia Following Accidental Pollution

Temmerman, Leen De

doi:10.1016/b978-0-408-10705-1.50037-5

Cited by 2 publications

(1 citation statement)

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“…Negative efTects of ammonia on plant growth are known (De Temmerman, 1982;Van der Eerden, 1982), although none was observed in this ex-periment, Heijne et al (1992) found a detrimental effect of ammonium sulphate on A. montana when applied at high concentrations to -VAM plants during 2 yr under field conditions. The lack of a detrimental effect in this experiment may be due to the short duration of exposure to the nitrogenous pollutants.…”

Section: Plant Growthmentioning

confidence: 99%

Effects of atmospheric ammonia and ammonium sulphate on vesicular–arbuscular mycorrhizal colonization in three heathland species

Heijne

Dueck²,

Eerden³

et al. 1994

New Phytologist

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SUMM.'\RYThree heathland species, Amiea moniana l^., Viola caiiina L. and Nardus sirida L,, were exposed to gaseous ammonia and artificial rain containing ammonium sulphate for 11 wk. Plants infected with Glomus fasciculatum (Thaxter sensu Gerdemann) Gerd. & Trappe grew faster than non-mycorrhizal plants. Anunonia increased the shoot dry weight of both mycorrhizal and non-mycorrhizal V. canina and tnycorrhizal A\ stricta. Only mycorrhizal V. canina and non-mycorrhizal N. stricta grew faster w hen supplied with increasing concentrations of ammonium sulphate. The tiitrogen tissue concentration, in all three species, was not influenced by vesicular-arbuscular mycorrhiza (VAM), but increased when plants were treated v>ith ammonia. Mycorrhizal and non-inycorrhizal JV, stricta and tnycorrhizal V. canina had a higher N tissue concentration when supplied with ammonium sulphate. The phosphorus tissue concentration was higher when plants were infected vvith VAM, but tended to be lower in the presence of ammonia or ammonium sulphate. Mycorrhizal plants had higher total amounts of N and P than non-mycorrhizal plants and plants treated vvith ammonia had higher total amounts of N than non-treated plants, VAM colonization increased in all three species when treated vvith ammonia but was not aflected by exposure to ammonium sulphate, Mycorrhiza decreased the sensitivity of JV, sfi'icta to drought, while ammonia decreased the sensitivity to drought for all three species. The effects of additional nitrogen in relation to N/P ratios are discussed with respect to the ecological consequences for these heathland species.

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Section: Plant Growthmentioning

confidence: 99%

Effects of atmospheric ammonia and ammonium sulphate on vesicular–arbuscular mycorrhizal colonization in three heathland species

Heijne

Dueck²,

Eerden³

et al. 1994

New Phytologist

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Physiological effects of long‐term exposure to low and moderate concentrations of atmospheric NH₃ on poplar leaves

Hove

Kooten

Adema

et al. 1989

Plant Cell & Environment

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Abstract. Poplar shoots (Populus euramericana L.) obtained from cuttings were exposed for 6 or 8 weeks to NH3 concentrations of 50 and 100 μgm−3 or filtered air in fumigation chambers. After this exposure the rates of NH3 uptake, transpiration, CO2 assimilation and respiration of leaves were measured using a leaf chamber. During the long‐term exposure also modulated chlorophyll fluorescence measurements were carried out to obtain information about the photosynthetic performance of individual leaves. Both fluorescence and leaf chamber measurements showed a higher photosynthetic activity of leaves exposed to 100 μg NH3 m−3. These leaves showed also a larger leaf conductance and a larger uptake rate of NH3 than leaves exposed to 50 μg m−3 NH3 or filtered air. The long‐term NH3 exposure did not induce an internal resistance against NH3 transport in the leaf, nor did it affect the leaf cuticle. So, not only at a short time exposure, but also at a long‐term exposure NH3 uptake into leaves can be calculated from data on the boundary layer and stomatal resistance for H2O and ambient NH3‐concentration. Furthermore, the NH3 exposure had no effect on the relation between CO2‐assimilation and stomatal conductance, indicating that NH3 in concentrations up to 100 μg m−3 has no direct effect on stomatal behaviour; for example, by affecting the guard or contiguous cells of the stomata.

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Acute and Subacute Damage to Vegetation by Ammonia Following Accidental Pollution

Cited by 2 publications

References 0 publications

Effects of atmospheric ammonia and ammonium sulphate on vesicular–arbuscular mycorrhizal colonization in three heathland species

Effects of atmospheric ammonia and ammonium sulphate on vesicular–arbuscular mycorrhizal colonization in three heathland species

Physiological effects of long‐term exposure to low and moderate concentrations of atmospheric NH₃ on poplar leaves

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Acute and Subacute Damage to Vegetation by Ammonia Following Accidental Pollution

Cited by 2 publications

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Effects of atmospheric ammonia and ammonium sulphate on vesicular–arbuscular mycorrhizal colonization in three heathland species

Effects of atmospheric ammonia and ammonium sulphate on vesicular–arbuscular mycorrhizal colonization in three heathland species

Physiological effects of long‐term exposure to low and moderate concentrations of atmospheric NH3 on poplar leaves

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Physiological effects of long‐term exposure to low and moderate concentrations of atmospheric NH₃ on poplar leaves