Needle cytokinin content as a sensitive bioindicator of N pollution in Sitka spruce
Previous work has shown that conifers growing on sites exposed to aerial pollution exhibit a different pattern of vegetative development in comparison with those on unpolluted sites, and have higher needle cytokinin contents (von Schwartzenberg & Hahn, Journal of Plant Physiology 139, 218–223, 1...
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| Autor*in: |
COLLIER, M. D. [verfasserIn] SHEPPARD, L. J. [verfasserIn] CROSSLEY, A. [verfasserIn] |
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E-Artikel |
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Oxford, UK: Blackwell Science Ltd ; 2003 |
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Online-Ressource |
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2003 ; Blackwell Publishing Journal Backfiles 1879-2005 |
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In: Plant, cell & environment - Oxford [u.a.] : Wiley-Blackwell, 1978, 26(2003), 12, Seite 0 |
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volume:26 ; year:2003 ; number:12 ; pages:0 |
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10.1046/j.1365-3040.2003.01109.x |
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| 520 | |a Previous work has shown that conifers growing on sites exposed to aerial pollution exhibit a different pattern of vegetative development in comparison with those on unpolluted sites, and have higher needle cytokinin contents (von Schwartzenberg & Hahn, Journal of Plant Physiology 139, 218–223, 1991). Physiologically mature Sitka spruce (Picea sitchensis[Bong.] Carr) trees growing in a commercial plantation were sprayed with combinations of S, N and acidity from bud burst until December, for a 3 year period, in order to factor out the effects of individual pollutants and identify the specific component responsible for the high cytokinin content. Cytokinins were monitored using high-performance liquid chromatography/enzyme-linked immunosorbent assay techniques. After 3 years of treatment only needles of neutral N-treated trees contained significantly higher levels of cytokinin than those of trees receiving no spray. The addition of acid S could suppress the effects of added N. Needles from neutral N treatments also contained significantly higher levels of biologically active cytokinins and forms that can be transported in the xylem/phloem. Significantly lower levels of active cytokinins were present in needles sprayed with N in combination with acid sulphate. The results demonstrate that the needle cytokinin content may be used as a sensitive and selective bioindicator of the early stages in N perturbation in coniferous trees. | ||
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10.1046/j.1365-3040.2003.01109.x doi (DE-627)NLEJ243840829 DE-627 ger DE-627 rakwb COLLIER, M. D. verfasserin aut Needle cytokinin content as a sensitive bioindicator of N pollution in Sitka spruce Oxford, UK Blackwell Science Ltd 2003 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Previous work has shown that conifers growing on sites exposed to aerial pollution exhibit a different pattern of vegetative development in comparison with those on unpolluted sites, and have higher needle cytokinin contents (von Schwartzenberg & Hahn, Journal of Plant Physiology 139, 218–223, 1991). Physiologically mature Sitka spruce (Picea sitchensis[Bong.] Carr) trees growing in a commercial plantation were sprayed with combinations of S, N and acidity from bud burst until December, for a 3 year period, in order to factor out the effects of individual pollutants and identify the specific component responsible for the high cytokinin content. Cytokinins were monitored using high-performance liquid chromatography/enzyme-linked immunosorbent assay techniques. After 3 years of treatment only needles of neutral N-treated trees contained significantly higher levels of cytokinin than those of trees receiving no spray. The addition of acid S could suppress the effects of added N. Needles from neutral N treatments also contained significantly higher levels of biologically active cytokinins and forms that can be transported in the xylem/phloem. Significantly lower levels of active cytokinins were present in needles sprayed with N in combination with acid sulphate. The results demonstrate that the needle cytokinin content may be used as a sensitive and selective bioindicator of the early stages in N perturbation in coniferous trees. 2003 Blackwell Publishing Journal Backfiles 1879-2005 |2003|||||||||| bioindicator SHEPPARD, L. J. verfasserin aut CROSSLEY, A. verfasserin aut HANKE, D. E. oth In Plant, cell & environment Oxford [u.a.] : Wiley-Blackwell, 1978 26(2003), 12, Seite 0 Online-Ressource (DE-627)NLEJ243926944 (DE-600)2020843-1 1365-3040 nnns volume:26 year:2003 number:12 pages:0 http://dx.doi.org/10.1046/j.1365-3040.2003.01109.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 26 2003 12 0 |
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10.1046/j.1365-3040.2003.01109.x doi (DE-627)NLEJ243840829 DE-627 ger DE-627 rakwb COLLIER, M. D. verfasserin aut Needle cytokinin content as a sensitive bioindicator of N pollution in Sitka spruce Oxford, UK Blackwell Science Ltd 2003 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Previous work has shown that conifers growing on sites exposed to aerial pollution exhibit a different pattern of vegetative development in comparison with those on unpolluted sites, and have higher needle cytokinin contents (von Schwartzenberg & Hahn, Journal of Plant Physiology 139, 218–223, 1991). Physiologically mature Sitka spruce (Picea sitchensis[Bong.] Carr) trees growing in a commercial plantation were sprayed with combinations of S, N and acidity from bud burst until December, for a 3 year period, in order to factor out the effects of individual pollutants and identify the specific component responsible for the high cytokinin content. Cytokinins were monitored using high-performance liquid chromatography/enzyme-linked immunosorbent assay techniques. After 3 years of treatment only needles of neutral N-treated trees contained significantly higher levels of cytokinin than those of trees receiving no spray. The addition of acid S could suppress the effects of added N. Needles from neutral N treatments also contained significantly higher levels of biologically active cytokinins and forms that can be transported in the xylem/phloem. Significantly lower levels of active cytokinins were present in needles sprayed with N in combination with acid sulphate. The results demonstrate that the needle cytokinin content may be used as a sensitive and selective bioindicator of the early stages in N perturbation in coniferous trees. 2003 Blackwell Publishing Journal Backfiles 1879-2005 |2003|||||||||| bioindicator SHEPPARD, L. J. verfasserin aut CROSSLEY, A. verfasserin aut HANKE, D. E. oth In Plant, cell & environment Oxford [u.a.] : Wiley-Blackwell, 1978 26(2003), 12, Seite 0 Online-Ressource (DE-627)NLEJ243926944 (DE-600)2020843-1 1365-3040 nnns volume:26 year:2003 number:12 pages:0 http://dx.doi.org/10.1046/j.1365-3040.2003.01109.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 26 2003 12 0 |
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10.1046/j.1365-3040.2003.01109.x doi (DE-627)NLEJ243840829 DE-627 ger DE-627 rakwb COLLIER, M. D. verfasserin aut Needle cytokinin content as a sensitive bioindicator of N pollution in Sitka spruce Oxford, UK Blackwell Science Ltd 2003 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Previous work has shown that conifers growing on sites exposed to aerial pollution exhibit a different pattern of vegetative development in comparison with those on unpolluted sites, and have higher needle cytokinin contents (von Schwartzenberg & Hahn, Journal of Plant Physiology 139, 218–223, 1991). Physiologically mature Sitka spruce (Picea sitchensis[Bong.] Carr) trees growing in a commercial plantation were sprayed with combinations of S, N and acidity from bud burst until December, for a 3 year period, in order to factor out the effects of individual pollutants and identify the specific component responsible for the high cytokinin content. Cytokinins were monitored using high-performance liquid chromatography/enzyme-linked immunosorbent assay techniques. After 3 years of treatment only needles of neutral N-treated trees contained significantly higher levels of cytokinin than those of trees receiving no spray. The addition of acid S could suppress the effects of added N. Needles from neutral N treatments also contained significantly higher levels of biologically active cytokinins and forms that can be transported in the xylem/phloem. Significantly lower levels of active cytokinins were present in needles sprayed with N in combination with acid sulphate. The results demonstrate that the needle cytokinin content may be used as a sensitive and selective bioindicator of the early stages in N perturbation in coniferous trees. 2003 Blackwell Publishing Journal Backfiles 1879-2005 |2003|||||||||| bioindicator SHEPPARD, L. J. verfasserin aut CROSSLEY, A. verfasserin aut HANKE, D. E. oth In Plant, cell & environment Oxford [u.a.] : Wiley-Blackwell, 1978 26(2003), 12, Seite 0 Online-Ressource (DE-627)NLEJ243926944 (DE-600)2020843-1 1365-3040 nnns volume:26 year:2003 number:12 pages:0 http://dx.doi.org/10.1046/j.1365-3040.2003.01109.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 26 2003 12 0 |
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10.1046/j.1365-3040.2003.01109.x doi (DE-627)NLEJ243840829 DE-627 ger DE-627 rakwb COLLIER, M. D. verfasserin aut Needle cytokinin content as a sensitive bioindicator of N pollution in Sitka spruce Oxford, UK Blackwell Science Ltd 2003 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Previous work has shown that conifers growing on sites exposed to aerial pollution exhibit a different pattern of vegetative development in comparison with those on unpolluted sites, and have higher needle cytokinin contents (von Schwartzenberg & Hahn, Journal of Plant Physiology 139, 218–223, 1991). Physiologically mature Sitka spruce (Picea sitchensis[Bong.] Carr) trees growing in a commercial plantation were sprayed with combinations of S, N and acidity from bud burst until December, for a 3 year period, in order to factor out the effects of individual pollutants and identify the specific component responsible for the high cytokinin content. Cytokinins were monitored using high-performance liquid chromatography/enzyme-linked immunosorbent assay techniques. After 3 years of treatment only needles of neutral N-treated trees contained significantly higher levels of cytokinin than those of trees receiving no spray. The addition of acid S could suppress the effects of added N. Needles from neutral N treatments also contained significantly higher levels of biologically active cytokinins and forms that can be transported in the xylem/phloem. Significantly lower levels of active cytokinins were present in needles sprayed with N in combination with acid sulphate. The results demonstrate that the needle cytokinin content may be used as a sensitive and selective bioindicator of the early stages in N perturbation in coniferous trees. 2003 Blackwell Publishing Journal Backfiles 1879-2005 |2003|||||||||| bioindicator SHEPPARD, L. J. verfasserin aut CROSSLEY, A. verfasserin aut HANKE, D. E. oth In Plant, cell & environment Oxford [u.a.] : Wiley-Blackwell, 1978 26(2003), 12, Seite 0 Online-Ressource (DE-627)NLEJ243926944 (DE-600)2020843-1 1365-3040 nnns volume:26 year:2003 number:12 pages:0 http://dx.doi.org/10.1046/j.1365-3040.2003.01109.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 26 2003 12 0 |
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10.1046/j.1365-3040.2003.01109.x doi (DE-627)NLEJ243840829 DE-627 ger DE-627 rakwb COLLIER, M. D. verfasserin aut Needle cytokinin content as a sensitive bioindicator of N pollution in Sitka spruce Oxford, UK Blackwell Science Ltd 2003 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Previous work has shown that conifers growing on sites exposed to aerial pollution exhibit a different pattern of vegetative development in comparison with those on unpolluted sites, and have higher needle cytokinin contents (von Schwartzenberg & Hahn, Journal of Plant Physiology 139, 218–223, 1991). Physiologically mature Sitka spruce (Picea sitchensis[Bong.] Carr) trees growing in a commercial plantation were sprayed with combinations of S, N and acidity from bud burst until December, for a 3 year period, in order to factor out the effects of individual pollutants and identify the specific component responsible for the high cytokinin content. Cytokinins were monitored using high-performance liquid chromatography/enzyme-linked immunosorbent assay techniques. After 3 years of treatment only needles of neutral N-treated trees contained significantly higher levels of cytokinin than those of trees receiving no spray. The addition of acid S could suppress the effects of added N. Needles from neutral N treatments also contained significantly higher levels of biologically active cytokinins and forms that can be transported in the xylem/phloem. Significantly lower levels of active cytokinins were present in needles sprayed with N in combination with acid sulphate. The results demonstrate that the needle cytokinin content may be used as a sensitive and selective bioindicator of the early stages in N perturbation in coniferous trees. 2003 Blackwell Publishing Journal Backfiles 1879-2005 |2003|||||||||| bioindicator SHEPPARD, L. J. verfasserin aut CROSSLEY, A. verfasserin aut HANKE, D. E. oth In Plant, cell & environment Oxford [u.a.] : Wiley-Blackwell, 1978 26(2003), 12, Seite 0 Online-Ressource (DE-627)NLEJ243926944 (DE-600)2020843-1 1365-3040 nnns volume:26 year:2003 number:12 pages:0 http://dx.doi.org/10.1046/j.1365-3040.2003.01109.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 26 2003 12 0 |
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Needle cytokinin content as a sensitive bioindicator of N pollution in Sitka spruce |
| abstract |
Previous work has shown that conifers growing on sites exposed to aerial pollution exhibit a different pattern of vegetative development in comparison with those on unpolluted sites, and have higher needle cytokinin contents (von Schwartzenberg & Hahn, Journal of Plant Physiology 139, 218–223, 1991). Physiologically mature Sitka spruce (Picea sitchensis[Bong.] Carr) trees growing in a commercial plantation were sprayed with combinations of S, N and acidity from bud burst until December, for a 3 year period, in order to factor out the effects of individual pollutants and identify the specific component responsible for the high cytokinin content. Cytokinins were monitored using high-performance liquid chromatography/enzyme-linked immunosorbent assay techniques. After 3 years of treatment only needles of neutral N-treated trees contained significantly higher levels of cytokinin than those of trees receiving no spray. The addition of acid S could suppress the effects of added N. Needles from neutral N treatments also contained significantly higher levels of biologically active cytokinins and forms that can be transported in the xylem/phloem. Significantly lower levels of active cytokinins were present in needles sprayed with N in combination with acid sulphate. The results demonstrate that the needle cytokinin content may be used as a sensitive and selective bioindicator of the early stages in N perturbation in coniferous trees. |
| abstractGer |
Previous work has shown that conifers growing on sites exposed to aerial pollution exhibit a different pattern of vegetative development in comparison with those on unpolluted sites, and have higher needle cytokinin contents (von Schwartzenberg & Hahn, Journal of Plant Physiology 139, 218–223, 1991). Physiologically mature Sitka spruce (Picea sitchensis[Bong.] Carr) trees growing in a commercial plantation were sprayed with combinations of S, N and acidity from bud burst until December, for a 3 year period, in order to factor out the effects of individual pollutants and identify the specific component responsible for the high cytokinin content. Cytokinins were monitored using high-performance liquid chromatography/enzyme-linked immunosorbent assay techniques. After 3 years of treatment only needles of neutral N-treated trees contained significantly higher levels of cytokinin than those of trees receiving no spray. The addition of acid S could suppress the effects of added N. Needles from neutral N treatments also contained significantly higher levels of biologically active cytokinins and forms that can be transported in the xylem/phloem. Significantly lower levels of active cytokinins were present in needles sprayed with N in combination with acid sulphate. The results demonstrate that the needle cytokinin content may be used as a sensitive and selective bioindicator of the early stages in N perturbation in coniferous trees. |
| abstract_unstemmed |
Previous work has shown that conifers growing on sites exposed to aerial pollution exhibit a different pattern of vegetative development in comparison with those on unpolluted sites, and have higher needle cytokinin contents (von Schwartzenberg & Hahn, Journal of Plant Physiology 139, 218–223, 1991). Physiologically mature Sitka spruce (Picea sitchensis[Bong.] Carr) trees growing in a commercial plantation were sprayed with combinations of S, N and acidity from bud burst until December, for a 3 year period, in order to factor out the effects of individual pollutants and identify the specific component responsible for the high cytokinin content. Cytokinins were monitored using high-performance liquid chromatography/enzyme-linked immunosorbent assay techniques. After 3 years of treatment only needles of neutral N-treated trees contained significantly higher levels of cytokinin than those of trees receiving no spray. The addition of acid S could suppress the effects of added N. Needles from neutral N treatments also contained significantly higher levels of biologically active cytokinins and forms that can be transported in the xylem/phloem. Significantly lower levels of active cytokinins were present in needles sprayed with N in combination with acid sulphate. The results demonstrate that the needle cytokinin content may be used as a sensitive and selective bioindicator of the early stages in N perturbation in coniferous trees. |
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| title_short |
Needle cytokinin content as a sensitive bioindicator of N pollution in Sitka spruce |
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http://dx.doi.org/10.1046/j.1365-3040.2003.01109.x |
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SHEPPARD, L. J. CROSSLEY, A. HANKE, D. E. |
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SHEPPARD, L. J. CROSSLEY, A. HANKE, D. E. |
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10.1046/j.1365-3040.2003.01109.x |
| up_date |
2024-07-06T06:41:43.021Z |
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