Cadmium-induced changes in antioxidative systems and differentiation in roots of contrasted Medicago truncatula lines.
Defense pathways and stress responses induced under Cd stress were illustrated in roots of hydroponically grown Medicago truncatula seedlings. Actually, the ascorbate-glutathione and antioxidative system, secondary metabolism events including peroxidases, phenolic compounds, and lignification launch...
| Published in: | Protoplasma Vol. 254; no. 1; pp. 473 - 490 |
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| Main Authors: | , , , , , , , |
| Format: | Journal Article |
| Published: |
Springer Nature
Jan2017
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=120569745&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 120569745 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 0033183X 2CF jtl: Protoplasma issn: 0033183X maglogo: N pubinfo: dt: Jan2017 vid: 254 iid: 1 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 120569745 10.1007/s00709-016-0968-9 120569745 ppf: 473 ppct: 17 formats: fmt: @attributes: type: P tig: atl: Cadmium-induced changes in antioxidative systems and differentiation in roots of contrasted Medicago truncatula lines. aug: au: Rahoui, Sondès Martinez, Yves Sakouhi, Lamia Ben, Cécile Rickauer, Martina Ferjani, Ezzeddine Gentzbittel, Laurent Chaoui, Abdelilah affil: Fédération de Recherche «Agrobiosciences Interactions et Biodiversité» , 24 Chemin de Borde Rouge-BP 42617 Auzeville 31326 Castanet-Tolosan Cedex France sug: ab: Defense pathways and stress responses induced under Cd stress were illustrated in roots of hydroponically grown Medicago truncatula seedlings. Actually, the ascorbate-glutathione and antioxidative system, secondary metabolism events including peroxidases, phenolic compounds, and lignification launching, and developmental modifications were described. Cd (100 μM) initially increased reactive oxygen species, enhanced antioxidative (total SOD, CAT, and PRX) and ascorbate-glutathione-related metabolism enzymes (APX and MDAR), except in A17 and TN1.11. In agreement with peroxidase enhancement, physiological measurement and in situ observation illustrated soluble phenolic compound accumulation under Cd treatment. However, lignification was restricted to recently created protoxylem elements established in the root tip area, usually constituting the elongation zone. Cell death was increased. In the absence of necrotic reactions, developmental changes including lignin deposition, increase in cellulose and pectin contents, intercellular meatus, and condensed and deformed hairs were noticed in Cd-treated roots. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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