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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2013.10.018
|2 doi
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|a pubmed24n0788.xml
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|a (DE-627)NLM236458957
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|a (NLM)24635903
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|a (PII)S0176-1617(13)00442-2
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Hu, Yanbo
|e verfasserin
|4 aut
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| 245 |
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|a Exogenous sodium sulfide improves morphological and physiological responses of a hybrid Populus species to nitrogen dioxide
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 13.01.2015
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2013 Elsevier GmbH. All rights reserved.
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|a Gaseous nitrogen dioxide (NO2) can disturb normal plant growth and trigger complex physiological responses. NO2-induced responses are influenced by biotic or abiotic factors. In this study, we investigated the effects of exogenous sodium sulfide (Na2S, 5mmolL(-1)) on epidermis and stomata related physico-chemical responses of hybrid poplar cuttings (Pouplus alba×P. berolinensis) to gaseous NO2 (4μl1(-1)) for three time periods (0, 14 and 48h). We also investigated hydrogen sulfide (H2S), nitrate-nitrogen and nitrate reductase activity (NR) in control and Na2S treated plants. Our results showed that NO2 exposure for 48h led to the decline of NR, maximal PSII quantum yield (Fv/Fm), net photosynthetic rate (Pn), and dark respiration rate (Rd). The maximum rate for the post-illumination carbon dioxide burst (PIB) occurred in 48-h exposed leaves 13-15s after darkening. Moreover, NO2 exposure resulted in a significant increase in nitrogen percentage (from 0 to 33%) and a decrease in the macro and micro-elements of leaf surface. Spraying Na2S aqueous solution on the leaf surfaces significantly increased the thicknesses of palisade/spongy tissue and H2S content. Na2S pretreatment alleviated NO2-caused toxic effects as indicated by increased NR and higher values of Pn, Fv/Fm, and actual photochemical efficiency in light (ФPSII) compared with the control. Na2S pretreatment had no significant impacts on PIB-based photorespiration or elements composition of a leaf surface
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Nitrate reductase activity
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|a Nitrogen dioxide
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|a Photosynthesis
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|a Populus trees
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|a Sodium sulfide
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|a Nitrates
|2 NLM
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|a Plant Proteins
|2 NLM
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|a Sulfides
|2 NLM
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| 650 |
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|a Chlorophyll
|2 NLM
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|a 1406-65-1
|2 NLM
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|a Carbon Dioxide
|2 NLM
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| 650 |
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|a 142M471B3J
|2 NLM
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|a Nitrate Reductase
|2 NLM
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| 650 |
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|a EC 1.7.99.4
|2 NLM
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|a Nitrogen Dioxide
|2 NLM
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| 650 |
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|a S7G510RUBH
|2 NLM
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|a sodium sulfide
|2 NLM
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| 650 |
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|a YGR27ZW0Y7
|2 NLM
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| 700 |
1 |
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|a Bellaloui, Nacer
|e verfasserin
|4 aut
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| 700 |
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|a Sun, Guangyu
|e verfasserin
|4 aut
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| 700 |
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|a Tigabu, Mulualem
|e verfasserin
|4 aut
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| 700 |
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|a Wang, Jinghong
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 171(2014), 10 vom: 15. Juni, Seite 868-75
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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| 773 |
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|g volume:171
|g year:2014
|g number:10
|g day:15
|g month:06
|g pages:868-75
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|u http://dx.doi.org/10.1016/j.jplph.2013.10.018
|3 Volltext
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|d 171
|j 2014
|e 10
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|h 868-75
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