Evaluation of Polyamine and Proline Levels during Low Temperature Acclimation of Citrus.
Identifieur interne : 000F72 ( PubMed/Corpus ); précédent : 000F71; suivant : 000F73Evaluation of Polyamine and Proline Levels during Low Temperature Acclimation of Citrus.
Auteurs : M M Kushad ; G. YelenoskySource :
- Plant physiology [ 0032-0889 ] ; 1987.
Abstract
The polyamines (PA) putrescine (Put), spermidine (Spd), and spermine (Spm) were measured during 3 weeks exposure to cold hardening (15.6 degrees C day and 4.4 degrees C night) and nonhardening (32.2 degrees C day and 21.1 degrees C night) temperature regimes in three citrus cultivars: sour orange (SO) (Citrus aurantium L.), ;valencia' (VAL) (Citrus sinensis L. Osbeck), and rough lemon (RL) (Citrus jambhiri Lush). The changes in PA were compared to the amount of free proline, percent wood kill and percent leaf kill. A 2- to 3-fold increase in Spd concentrations were observed in hardened RL, SO, and VAL leaves compared to nonhardened leaves. Spermidine reached its highest level of approximately 200 nanomoles per gram fresh weight after 1 week of acclimation in both SO and VAL leaves, while RL spermidine content continued to increase up to the third week of acclimation. Spm levels in acclimated VAL and RL leaves increased 1- to 4-fold. However, SO leaves Spm content decreased with acclimation. Putrescine levels in SO and VAL increased 20 to 60% during the first 2 weeks of acclimation then declined after 3 weeks. RL putrescine content was not affected by cold acclimation. The data presented here provided direct relationship between increased Spd concentration and citrus cold hardiness. Free proline was 3- to 6-fold higher in acclimated than in nonacclimated trees. Results also demonstrate that in acclimated versus nonacclimated citrus trees the absolute amount rather than the ratio of increase in free proline is more important in predicting their ability to survive freezing stress.
PubMed: 16665504
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Evaluation of Polyamine and Proline Levels during Low Temperature Acclimation of Citrus.</title><author><name sortKey="Kushad, M M" sort="Kushad, M M" uniqKey="Kushad M" first="M M" last="Kushad">M M Kushad</name><affiliation><nlm:affiliation>Department of Horticulture, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061.</nlm:affiliation></affiliation></author><author><name sortKey="Yelenosky, G" sort="Yelenosky, G" uniqKey="Yelenosky G" first="G" last="Yelenosky">G. Yelenosky</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="1987">1987</date><idno type="RBID">pubmed:16665504</idno><idno type="pmid">16665504</idno><idno type="wicri:Area/PubMed/Corpus">000F72</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Evaluation of Polyamine and Proline Levels during Low Temperature Acclimation of Citrus.</title><author><name sortKey="Kushad, M M" sort="Kushad, M M" uniqKey="Kushad M" first="M M" last="Kushad">M M Kushad</name><affiliation><nlm:affiliation>Department of Horticulture, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061.</nlm:affiliation></affiliation></author><author><name sortKey="Yelenosky, G" sort="Yelenosky, G" uniqKey="Yelenosky G" first="G" last="Yelenosky">G. Yelenosky</name></author></analytic><series><title level="j">Plant physiology</title><idno type="ISSN">0032-0889</idno><imprint><date when="1987" type="published">1987</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The polyamines (PA) putrescine (Put), spermidine (Spd), and spermine (Spm) were measured during 3 weeks exposure to cold hardening (15.6 degrees C day and 4.4 degrees C night) and nonhardening (32.2 degrees C day and 21.1 degrees C night) temperature regimes in three citrus cultivars: sour orange (SO) (Citrus aurantium L.), ;valencia' (VAL) (Citrus sinensis L. Osbeck), and rough lemon (RL) (Citrus jambhiri Lush). The changes in PA were compared to the amount of free proline, percent wood kill and percent leaf kill. A 2- to 3-fold increase in Spd concentrations were observed in hardened RL, SO, and VAL leaves compared to nonhardened leaves. Spermidine reached its highest level of approximately 200 nanomoles per gram fresh weight after 1 week of acclimation in both SO and VAL leaves, while RL spermidine content continued to increase up to the third week of acclimation. Spm levels in acclimated VAL and RL leaves increased 1- to 4-fold. However, SO leaves Spm content decreased with acclimation. Putrescine levels in SO and VAL increased 20 to 60% during the first 2 weeks of acclimation then declined after 3 weeks. RL putrescine content was not affected by cold acclimation. The data presented here provided direct relationship between increased Spd concentration and citrus cold hardiness. Free proline was 3- to 6-fold higher in acclimated than in nonacclimated trees. Results also demonstrate that in acclimated versus nonacclimated citrus trees the absolute amount rather than the ratio of increase in free proline is more important in predicting their ability to survive freezing stress.</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">16665504</PMID><DateCreated><Year>2010</Year><Month>6</Month><Day>29</Day></DateCreated><DateCompleted><Year>2010</Year><Month>06</Month><Day>29</Day></DateCompleted><DateRevised><Year>2010</Year><Month>9</Month><Day>14</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0032-0889</ISSN><JournalIssue CitedMedium="Print"><Volume>84</Volume><Issue>3</Issue><PubDate><Year>1987</Year><Month>Jul</Month></PubDate></JournalIssue><Title>Plant physiology</Title><ISOAbbreviation>Plant Physiol.</ISOAbbreviation></Journal><ArticleTitle>Evaluation of Polyamine and Proline Levels during Low Temperature Acclimation of Citrus.</ArticleTitle><Pagination><MedlinePgn>692-5</MedlinePgn></Pagination><Abstract><AbstractText>The polyamines (PA) putrescine (Put), spermidine (Spd), and spermine (Spm) were measured during 3 weeks exposure to cold hardening (15.6 degrees C day and 4.4 degrees C night) and nonhardening (32.2 degrees C day and 21.1 degrees C night) temperature regimes in three citrus cultivars: sour orange (SO) (Citrus aurantium L.), ;valencia' (VAL) (Citrus sinensis L. Osbeck), and rough lemon (RL) (Citrus jambhiri Lush). The changes in PA were compared to the amount of free proline, percent wood kill and percent leaf kill. A 2- to 3-fold increase in Spd concentrations were observed in hardened RL, SO, and VAL leaves compared to nonhardened leaves. Spermidine reached its highest level of approximately 200 nanomoles per gram fresh weight after 1 week of acclimation in both SO and VAL leaves, while RL spermidine content continued to increase up to the third week of acclimation. Spm levels in acclimated VAL and RL leaves increased 1- to 4-fold. However, SO leaves Spm content decreased with acclimation. Putrescine levels in SO and VAL increased 20 to 60% during the first 2 weeks of acclimation then declined after 3 weeks. RL putrescine content was not affected by cold acclimation. The data presented here provided direct relationship between increased Spd concentration and citrus cold hardiness. Free proline was 3- to 6-fold higher in acclimated than in nonacclimated trees. Results also demonstrate that in acclimated versus nonacclimated citrus trees the absolute amount rather than the ratio of increase in free proline is more important in predicting their ability to survive freezing stress.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Kushad</LastName><ForeName>M M</ForeName><Initials>MM</Initials><AffiliationInfo><Affiliation>Department of Horticulture, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Yelenosky</LastName><ForeName>G</ForeName><Initials>G</Initials></Author></AuthorList><Language>ENG</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Plant Physiol</MedlineTA><NlmUniqueID>0401224</NlmUniqueID><ISSNLinking>0032-0889</ISSNLinking></MedlineJournalInfo><CommentsCorrectionsList><CommentsCorrections RefType="Cites"><RefSource>Plant Physiol. 1983 Apr;71(4):767-71</RefSource><PMID Version="1">16662904</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Plant Physiol. 1986 Sep;82(1):324-6</RefSource><PMID Version="1">16665015</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Science. 1982 Sep 24;217(4566):1259-61</RefSource><PMID Version="1">17837648</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Plant Physiol. 1982 Mar;69(3):701-6</RefSource><PMID Version="1">16662279</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Plant Physiol. 1982 Feb;69(2):405-10</RefSource><PMID Version="1">16662218</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Plant Physiol. 1971 Jan;47(1):164-7</RefSource><PMID Version="1">16657575</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Plant Physiol. 1977 Oct;60(4):570-4</RefSource><PMID Version="1">16660139</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Plant Physiol. 1985 May;78(1):25-8</RefSource><PMID Version="1">16664201</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Nature. 1952 Sep 13;170(4324):460</RefSource><PMID Version="1">12993199</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Plant Physiol. 1986;82:641-5</RefSource><PMID Version="1">11539091</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Biol Rev Camb Philos Soc. 1971 May;46(2):201-41</RefSource><PMID Version="1">4942955</PMID></CommentsCorrections><CommentsCorrections RefType="Cites"><RefSource>Plant Physiol. 1979 Sep;64(3):425-7</RefSource><PMID Version="1">16660980</PMID></CommentsCorrections></CommentsCorrectionsList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>1987</Year><Month>7</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>1987</Year><Month>7</Month><Day>1</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>1987</Year><Month>7</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">16665504</ArticleId><ArticleId IdType="pmc">PMC1056652</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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