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

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WELLBURN, ALAN R.·1990·New Phytologist

Abstract

SUMMARY: Atmospheric pollution by the oxides of nitrogen, NO and NO 2, 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 SO 2 are also present with NO or NO 2 then free radical‐induced injury, similar to that caused by O 3 alone, also occurs. CONTENTSSummary395I.Introduction396II.Uptake and cycling of oxides of nitrogen396III.Biochemical responses to NO and NO 2405IV.Physiological responses to NO and NO 2410V.Combinations of NO and NO 2 with other pollutants416VI.Recapitulation and beyond418Acknowledgements420References420

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Metadata

Authors
WELLBURN, A. R.
Venue
New Phytologist
Publisher
Wiley
Published
1990-07
Volume
115
Issue
3
Pages
395-429
ISSN
  • 0028-646X (ISSN-L)
  • 1469-8137
OpenAlex
W2078717859
Cited by
310
References
49
FWCI
20.05
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Tansley Review No. 24 Why are atmospheric oxides of nitrogen usually phytotoxic and not alternative fertilizers? https://app.cochat.ai/papers/10.1111/j.1469-8137.1990.tb00467.x
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WELLBURN, A. R. (1990). Tansley Review No. 24 Why are atmospheric oxides of nitrogen usually phytotoxic and not alternative fertilizers? New Phytologist. https://doi.org/10.1111/j.1469-8137.1990.tb00467.x

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