Sulphide utilization and injuries in hypoxic roots and rhizomes of common reed (Phragmites australis)

Fürtig, Konrad; Rüegsegger, Adrian; Brunold, Christian; Brändle, Roland (1996). Sulphide utilization and injuries in hypoxic roots and rhizomes of common reed (Phragmites australis). Folia Geobotanica, 31(1), pp. 143-151. Springer 10.1007/BF02804003

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The presented investigations have been carried out in order to estimate toxic sulphide levels and to examine detoxification capabilities in roots and rhizomes of the common reed (Phragmites australis). Underground organs of common reed are sensitive towards sulphide above 1 mM applied exogenously under hypoxia. However, certain tolerance may be achieved by sulphide detoxification. Accumulated sulphide is partially used for the synthesis of npn-toxic thiols, mainly glutathione: But the detoxification capacity of the fw in roots and 300 underground organs is limited. Maximum concentrations of thiols are about 60 nmol/g(-1) nmol/g(-1) fw in rhizomes. Energy metabolism is considerably affected by low sulphide concentrations of 1 mM for 4 days, and immediately disturbed by increased concentrations up to 6 mM sulphide. Adenylate energy charge, total adenylates, posthypoxic respiration, and fermentation capacity decrease significantly. Roots are more sensitive than rhizomes.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Stress Physiology (discontinued)
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Anoxia / Postanoxia (discontinued)
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS)

UniBE Contributor:

Brunold, Christian and Brändle, Roland

Subjects:

500 Science > 580 Plants (Botany)

ISSN:

1211-9520

Publisher:

Springer

Language:

English

Submitter:

Peter Alfred von Ballmoos-Haas

Date Deposited:

06 Jul 2017 09:28

Last Modified:

14 Nov 2017 15:08

Publisher DOI:

10.1007/BF02804003

Additional Information:

Symposium on Adaptation Strategies in Wetland Plants - Links Between Ecology and Physiology, TREBON, CZECH REPUBLIC, SEP 07-10, 1994

Uncontrolled Keywords:

adenylates; detoxification; energy metabolism; glutathione; thiols; viability

BORIS DOI:

10.7892/boris.91765

URI:

https://boris.unibe.ch/id/eprint/91765

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