Differences in Ionic, Enzymatic, and Photosynthetic Features Characterize Distinct Salt Tolerance in Eucalyptus Species

Balti H, Abassi M, Dietz K-J, Kumar V (2021)
Plants 10(7): 1401.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
Download
OA 3.99 MB
Autor*in
Balti, Hazar; Abassi, Mejda; Dietz, Karl-JosefUniBi; Kumar, VijayUniBi
Abstract / Bemerkung
In the face of rising salinity along coastal regions and in irrigated areas, molecular breeding of tolerant crops and reforestation of exposed areas using tolerant woody species is a two-way strategy. Thus, identification of tolerant plants and of existing tolerance mechanisms are of immense value. In the present study, three Eucalyptus ecotypes with potentially differential salt sensitivity were compared. Soil-grown Eucalyptus plants were exposed to 80 and 170 mM NaCl for 30 days. Besides analysing salt effects on ionic/osmotic balance, and hydrolytic enzymes, plants were compared for dynamics of light-induced redox changes in photosynthetic electron transport chain (pETC) components, namely plastocyanin (PC), photosystem I (PSI) and ferredoxin (Fd), parallel to traditional chlorophyll a fluorescence-based PSII-related parameters. Deconvoluted signals for PC and Fd from PSI allowed identification of PC and PSI as the prime salinity-sensitive components of pETC in tested Eucalyptus species. Eucalyptus loxophleba portrayed efficient K+-Na+ balance (60–90% increased K+) along with a more dynamic range of redox changes for pETC components in old leaves. Young leaves in Eucalyptus loxophleba showed robust endomembrane homeostasis, as underlined by an increased response of hydrolytic enzymes at lower salt concentration (~1.7–2.6-fold increase). Findings are discussed in context of salinity dose dependence among different Eucalyptus species.
Stichworte
Eucalyptus; salinity; photosynthesis; photosystem II; photosystem I; plastocyanin; ferredoxin; redox; osmotic balance; hydrolase
Erscheinungsjahr
2021
Zeitschriftentitel
Plants
Band
10
Ausgabe
7
Art.-Nr.
1401
eISSN
2223-7747
Finanzierungs-Informationen
Open-Access-Publikationskosten wurden durch die Universität Bielefeld gefördert.
Page URI
https://pub.uni-bielefeld.de/record/2956140

Zitieren

Balti H, Abassi M, Dietz K-J, Kumar V. Differences in Ionic, Enzymatic, and Photosynthetic Features Characterize Distinct Salt Tolerance in Eucalyptus Species. Plants. 2021;10(7): 1401.
Balti, H., Abassi, M., Dietz, K. - J., & Kumar, V. (2021). Differences in Ionic, Enzymatic, and Photosynthetic Features Characterize Distinct Salt Tolerance in Eucalyptus Species. Plants, 10(7), 1401. https://doi.org/10.3390/plants10071401
Balti, H., Abassi, M., Dietz, K. - J., and Kumar, V. (2021). Differences in Ionic, Enzymatic, and Photosynthetic Features Characterize Distinct Salt Tolerance in Eucalyptus Species. Plants 10:1401.
Balti, H., et al., 2021. Differences in Ionic, Enzymatic, and Photosynthetic Features Characterize Distinct Salt Tolerance in Eucalyptus Species. Plants, 10(7): 1401.
H. Balti, et al., “Differences in Ionic, Enzymatic, and Photosynthetic Features Characterize Distinct Salt Tolerance in Eucalyptus Species”, Plants, vol. 10, 2021, : 1401.
Balti, H., Abassi, M., Dietz, K.-J., Kumar, V.: Differences in Ionic, Enzymatic, and Photosynthetic Features Characterize Distinct Salt Tolerance in Eucalyptus Species. Plants. 10, : 1401 (2021).
Balti, Hazar, Abassi, Mejda, Dietz, Karl-Josef, and Kumar, Vijay. “Differences in Ionic, Enzymatic, and Photosynthetic Features Characterize Distinct Salt Tolerance in Eucalyptus Species”. Plants 10.7 (2021): 1401.
Alle Dateien verfügbar unter der/den folgenden Lizenz(en):
Creative Commons Namensnennung 4.0 International Public License (CC-BY 4.0):
Volltext(e)
Access Level
OA Open Access
Zuletzt Hochgeladen
2021-07-12T04:26:11Z
MD5 Prüfsumme
d2e3500925bd898cb08141eb17243a22

Export

Markieren/ Markierung löschen
Markierte Publikationen

Open Data PUB

Web of Science

Dieser Datensatz im Web of Science®

Quellen

PMID: 34371604
PubMed | Europe PMC

Suchen in

Google Scholar