Metabolic changes in Citrus leaf volatiles in response to environmental stress.
Identifieur interne : 000135 ( Main/Exploration ); précédent : 000134; suivant : 000136Metabolic changes in Citrus leaf volatiles in response to environmental stress.
Auteurs : Tomonori Asai [Japon] ; Tetsuya Matsukawa [Japon] ; Shin'Ichiro Kajiyama [Japon]Source :
- Journal of bioscience and bioengineering [ 1347-4421 ] ; 2016.
English descriptors
- KwdEn :
- Aldehydes (metabolism), Citrus (drug effects), Citrus (metabolism), Cyclopentanes (pharmacology), Environment, Oxylipins (pharmacology), Plant Leaves (drug effects), Plant Leaves (metabolism), Salicylic Acid (metabolism), Sesquiterpenes (pharmacology), Stress, Physiological, Volatile Organic Compounds (metabolism).
- MESH :
- chemical , metabolism : Aldehydes, Salicylic Acid, Volatile Organic Compounds.
- drug effects : Citrus, Plant Leaves.
- metabolism : Citrus, Plant Leaves.
- chemical , pharmacology : Cyclopentanes, Oxylipins, Sesquiterpenes.
- Environment, Stress, Physiological.
Abstract
Citrus plants are well known as a rich source of VOCs, and several have important roles in defense responses. However, how VOCs are regulated in response to environmental stress is not yet well understood. In this study, we investigated dynamic changes of VOCs present in leaves of seven Citrus species (Citrus sinensis, C. limon, C. paradisi, C. unshiu, C. kinokuni, C. grandis, and C. hassaku) in response to mechanical wounding, jasmonic acid (JA), and salicylic acid (SA) as determined by gas chromatography/mass spectrometric analysis followed by multivariate analysis (principal component analysis, PCA, and orthogonal partial least squares-discriminant analysis, OPLS-DA). PCA and OPLS-DA suggested that changes in VOC profiles against stress stimuli were much diverse among Citrus species. OPLS-DA showed that C6 volatiles, such as hexanal and trans-2-hexenal, were induced in response to JA and SA stimuli in C. sinensis and C. grandis, while the other VOCs were decreased under all tested stress conditions. α-Farnesene was induced in all species except C. hassaku after wounding or JA treatment. In addition, α-farnesene was also induced in response to SA stimuli in C. unshiu and C. kinokuni. Therefore these volatiles can be candidates of the common stress biomarkers in Citrus. Our results will give a new insight into defense mechanisms in Citrus species.
DOI: 10.1016/j.jbiosc.2015.06.004
PubMed: 26188419
Affiliations:
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Electronic address: kajiyama@waka.kindai.ac.jp.</nlm:affiliation><country xml:lang="fr">Japon</country><wicri:regionArea>Graduated School of Biology-Oriented Science and Technology, Kinki University, 930 Nishimitani, Kinokawa City, Wakayama, 649-6493</wicri:regionArea><wicri:noRegion>649-6493</wicri:noRegion></affiliation></author></analytic><series><title level="j">Journal of bioscience and bioengineering</title><idno type="eISSN">1347-4421</idno><imprint><date when="2016" type="published">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aldehydes (metabolism)</term><term>Citrus (drug effects)</term><term>Citrus (metabolism)</term><term>Cyclopentanes (pharmacology)</term><term>Environment</term><term>Oxylipins (pharmacology)</term><term>Plant Leaves (drug effects)</term><term>Plant Leaves (metabolism)</term><term>Salicylic Acid (metabolism)</term><term>Sesquiterpenes (pharmacology)</term><term>Stress, Physiological</term><term>Volatile Organic Compounds (metabolism)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Aldehydes</term><term>Salicylic Acid</term><term>Volatile Organic Compounds</term></keywords><keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Citrus</term><term>Plant Leaves</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Citrus</term><term>Plant Leaves</term></keywords><keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Cyclopentanes</term><term>Oxylipins</term><term>Sesquiterpenes</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Environment</term><term>Stress, Physiological</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Citrus plants are well known as a rich source of VOCs, and several have important roles in defense responses. However, how VOCs are regulated in response to environmental stress is not yet well understood. In this study, we investigated dynamic changes of VOCs present in leaves of seven Citrus species (Citrus sinensis, C. limon, C. paradisi, C. unshiu, C. kinokuni, C. grandis, and C. hassaku) in response to mechanical wounding, jasmonic acid (JA), and salicylic acid (SA) as determined by gas chromatography/mass spectrometric analysis followed by multivariate analysis (principal component analysis, PCA, and orthogonal partial least squares-discriminant analysis, OPLS-DA). PCA and OPLS-DA suggested that changes in VOC profiles against stress stimuli were much diverse among Citrus species. OPLS-DA showed that C6 volatiles, such as hexanal and trans-2-hexenal, were induced in response to JA and SA stimuli in C. sinensis and C. grandis, while the other VOCs were decreased under all tested stress conditions. α-Farnesene was induced in all species except C. hassaku after wounding or JA treatment. In addition, α-farnesene was also induced in response to SA stimuli in C. unshiu and C. kinokuni. Therefore these volatiles can be candidates of the common stress biomarkers in Citrus. Our results will give a new insight into defense mechanisms in Citrus species.</div></front></TEI><affiliations><list><country><li>Japon</li></country></list><tree><country name="Japon"><noRegion><name sortKey="Asai, Tomonori" sort="Asai, Tomonori" uniqKey="Asai T" first="Tomonori" last="Asai">Tomonori Asai</name></noRegion><name sortKey="Kajiyama, Shin Ichiro" sort="Kajiyama, Shin Ichiro" uniqKey="Kajiyama S" first="Shin'Ichiro" last="Kajiyama">Shin'Ichiro Kajiyama</name><name sortKey="Matsukawa, Tetsuya" sort="Matsukawa, Tetsuya" uniqKey="Matsukawa T" first="Tetsuya" last="Matsukawa">Tetsuya Matsukawa</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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