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Effects of Atmospheric NO2 on Azolla-Anabaena Symbiosis.

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Effects of Atmospheric NO2 on Azolla-Anabaena Symbiosis. / Hur, Jae-Seoun; Wellburn, Alan R.
In: Annals of Botany, Vol. 73, No. 2, 1994, p. 137-141.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Hur, J-S & Wellburn, AR 1994, 'Effects of Atmospheric NO2 on Azolla-Anabaena Symbiosis.', Annals of Botany, vol. 73, no. 2, pp. 137-141. https://doi.org/10.1006/anbo.1994.1016

APA

Hur, J.-S., & Wellburn, A. R. (1994). Effects of Atmospheric NO2 on Azolla-Anabaena Symbiosis. Annals of Botany, 73(2), 137-141. https://doi.org/10.1006/anbo.1994.1016

Vancouver

Hur JS, Wellburn AR. Effects of Atmospheric NO2 on Azolla-Anabaena Symbiosis. Annals of Botany. 1994;73(2):137-141. doi: 10.1006/anbo.1994.1016

Author

Hur, Jae-Seoun ; Wellburn, Alan R. / Effects of Atmospheric NO2 on Azolla-Anabaena Symbiosis. In: Annals of Botany. 1994 ; Vol. 73, No. 2. pp. 137-141.

Bibtex

@article{ba9ab0311d9d4912a2dd93c81c84b784,
title = "Effects of Atmospheric NO2 on Azolla-Anabaena Symbiosis.",
abstract = "Cultures of the water fern Azolla pinnata R, Br. exposed for 1 week to atmospheric NO2 (50, 100 or 200 nl l-1) induced additional levels of nitrate reductase (NaR) protein and nitrite reductase (NiR) activity. At low concentrations of NO2 (50 nl l-1), nitrate derived from NO2 provides an alternative N source for Azolla but does not affect rates of acetylene reduction. However, the symbiotic relationship between Azolla and its endosymbiont, Anabaena azollae is only affected adversely by high concentrations (100 and 200 nl l-1) of atmospheric NO2. The resultant decreases in rate of growth, nitrogen fixation, heterocyst formation, and overall nitrogen cycling are probably due to the additional accumulation of N products derived from higher levels of atmospheric NO2. Parallel increases in levels of polyamines suggest that Azolla partially alleviates these harmful effects by incorporating some of the extra NO2-induced N into polyamines.",
keywords = "Azolla-Anabaena symbiosis, nitrogen dioxide pollution, nitrogen metabolism, polyamines",
author = "Jae-Seoun Hur and Wellburn, {Alan R.}",
note = "The definitive publisher-authenticated version Cooper, Rachel Why Hacking is Wrong about Human Kinds British Journal for the Philosophy of Science 2004 55: 73-85 is available online at: http://bjps.oxfordjournals.org/cgi/content/abstract/55/1/73",
year = "1994",
doi = "10.1006/anbo.1994.1016",
language = "English",
volume = "73",
pages = "137--141",
journal = "Annals of Botany",
issn = "1095-8290",
publisher = "OXFORD UNIV PRESS",
number = "2",

}

RIS

TY - JOUR

T1 - Effects of Atmospheric NO2 on Azolla-Anabaena Symbiosis.

AU - Hur, Jae-Seoun

AU - Wellburn, Alan R.

N1 - The definitive publisher-authenticated version Cooper, Rachel Why Hacking is Wrong about Human Kinds British Journal for the Philosophy of Science 2004 55: 73-85 is available online at: http://bjps.oxfordjournals.org/cgi/content/abstract/55/1/73

PY - 1994

Y1 - 1994

N2 - Cultures of the water fern Azolla pinnata R, Br. exposed for 1 week to atmospheric NO2 (50, 100 or 200 nl l-1) induced additional levels of nitrate reductase (NaR) protein and nitrite reductase (NiR) activity. At low concentrations of NO2 (50 nl l-1), nitrate derived from NO2 provides an alternative N source for Azolla but does not affect rates of acetylene reduction. However, the symbiotic relationship between Azolla and its endosymbiont, Anabaena azollae is only affected adversely by high concentrations (100 and 200 nl l-1) of atmospheric NO2. The resultant decreases in rate of growth, nitrogen fixation, heterocyst formation, and overall nitrogen cycling are probably due to the additional accumulation of N products derived from higher levels of atmospheric NO2. Parallel increases in levels of polyamines suggest that Azolla partially alleviates these harmful effects by incorporating some of the extra NO2-induced N into polyamines.

AB - Cultures of the water fern Azolla pinnata R, Br. exposed for 1 week to atmospheric NO2 (50, 100 or 200 nl l-1) induced additional levels of nitrate reductase (NaR) protein and nitrite reductase (NiR) activity. At low concentrations of NO2 (50 nl l-1), nitrate derived from NO2 provides an alternative N source for Azolla but does not affect rates of acetylene reduction. However, the symbiotic relationship between Azolla and its endosymbiont, Anabaena azollae is only affected adversely by high concentrations (100 and 200 nl l-1) of atmospheric NO2. The resultant decreases in rate of growth, nitrogen fixation, heterocyst formation, and overall nitrogen cycling are probably due to the additional accumulation of N products derived from higher levels of atmospheric NO2. Parallel increases in levels of polyamines suggest that Azolla partially alleviates these harmful effects by incorporating some of the extra NO2-induced N into polyamines.

KW - Azolla-Anabaena symbiosis

KW - nitrogen dioxide pollution

KW - nitrogen metabolism

KW - polyamines

U2 - 10.1006/anbo.1994.1016

DO - 10.1006/anbo.1994.1016

M3 - Journal article

VL - 73

SP - 137

EP - 141

JO - Annals of Botany

JF - Annals of Botany

SN - 1095-8290

IS - 2

ER -