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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
1
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pubmed:dateCreated |
2003-5-14
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pubmed:databankReference |
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pubmed:abstractText |
We have used genotypic variation in birch (Betula pendula Roth) to investigate the roles of ozone (O(3))-induced ethylene (ET), jasmonic acid, and salicylic acid in the regulation of tissue tolerance to O(3). Of these hormones, ET evolution correlated best with O(3)-induced cell death. Disruption of ET perception by transformation of birch with the dominant negative mutant allele etr1-1 of the Arabidopsis ET receptor gene ETR1 or blocking of ET perception with 1-methylcyclopropene reduced but did not completely prevent the O(3)-induced cell death, when inhibition of ET biosynthesis with aminooxyacetic acid completely abolished O(3) lesion formation. This suggests the presence of an ET-signaling-independent but ET biosynthesis-dependent component in the ET-mediated stimulation of cell death in O(3)-exposed birch. Functional ET signaling was required for the O(3) induction of the gene encoding beta-cyanoalanine synthase, which catalyzes detoxification of the cyanide formed during ET biosynthesis. The results suggest that functional ET signaling is required to protect birch from the O(3)-induced cell death and that a decrease in ET sensitivity together with a simultaneous, high ET biosynthesis can potentially cause cell death through a deficient detoxification of cyanide.
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pubmed:commentsCorrections |
http://linkedlifedata.com/resource/pubmed/commentcorrection/12746524-10230060,
http://linkedlifedata.com/resource/pubmed/commentcorrection/12746524-10364404,
http://linkedlifedata.com/resource/pubmed/commentcorrection/12746524-10393984,
http://linkedlifedata.com/resource/pubmed/commentcorrection/12746524-10482685,
http://linkedlifedata.com/resource/pubmed/commentcorrection/12746524-1055433,
http://linkedlifedata.com/resource/pubmed/commentcorrection/12746524-10571895,
http://linkedlifedata.com/resource/pubmed/commentcorrection/12746524-10806227,
http://linkedlifedata.com/resource/pubmed/commentcorrection/12746524-10859179,
http://linkedlifedata.com/resource/pubmed/commentcorrection/12746524-10923718,
http://linkedlifedata.com/resource/pubmed/commentcorrection/12746524-11031228,
http://linkedlifedata.com/resource/pubmed/commentcorrection/12746524-11041881,
http://linkedlifedata.com/resource/pubmed/commentcorrection/12746524-11459065,
http://linkedlifedata.com/resource/pubmed/commentcorrection/12746524-11607536,
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http://linkedlifedata.com/resource/pubmed/commentcorrection/12746524-11925032,
http://linkedlifedata.com/resource/pubmed/commentcorrection/12746524-12177505,
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http://linkedlifedata.com/resource/pubmed/commentcorrection/12746524-9426590,
http://linkedlifedata.com/resource/pubmed/commentcorrection/12746524-9465120,
http://linkedlifedata.com/resource/pubmed/commentcorrection/12746524-9576967,
http://linkedlifedata.com/resource/pubmed/commentcorrection/12746524-9707532,
http://linkedlifedata.com/resource/pubmed/commentcorrection/12746524-9844023
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Cyclopentanes,
http://linkedlifedata.com/resource/pubmed/chemical/Ethylenes,
http://linkedlifedata.com/resource/pubmed/chemical/Lyases,
http://linkedlifedata.com/resource/pubmed/chemical/Oxylipins,
http://linkedlifedata.com/resource/pubmed/chemical/Ozone,
http://linkedlifedata.com/resource/pubmed/chemical/RNA, Messenger,
http://linkedlifedata.com/resource/pubmed/chemical/Salicylic Acid,
http://linkedlifedata.com/resource/pubmed/chemical/beta-cyanoalanine synthase,
http://linkedlifedata.com/resource/pubmed/chemical/ethylene,
http://linkedlifedata.com/resource/pubmed/chemical/jasmonic acid
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pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0032-0889
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pubmed:author |
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pubmed:issnType |
Print
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pubmed:volume |
132
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
185-95
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pubmed:dateRevised |
2010-9-14
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pubmed:meshHeading |
pubmed-meshheading:12746524-Adaptation, Physiological,
pubmed-meshheading:12746524-Apoptosis,
pubmed-meshheading:12746524-Betula,
pubmed-meshheading:12746524-Cyclopentanes,
pubmed-meshheading:12746524-Ethylenes,
pubmed-meshheading:12746524-Gene Expression Regulation, Enzymologic,
pubmed-meshheading:12746524-Gene Expression Regulation, Plant,
pubmed-meshheading:12746524-Kinetics,
pubmed-meshheading:12746524-Lyases,
pubmed-meshheading:12746524-Molecular Sequence Data,
pubmed-meshheading:12746524-Oxylipins,
pubmed-meshheading:12746524-Ozone,
pubmed-meshheading:12746524-Plants, Genetically Modified,
pubmed-meshheading:12746524-RNA, Messenger,
pubmed-meshheading:12746524-Salicylic Acid,
pubmed-meshheading:12746524-Signal Transduction
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pubmed:year |
2003
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pubmed:articleTitle |
Ethylene insensitivity modulates ozone-induced cell death in birch.
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pubmed:affiliation |
Institute of Biotechnology and Department of Biosciences, University of Helsinki, POB 56 (Viikinkaari 9), Finland.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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