NDLI: Magnesium deficiency decreases biomass water-use efficiency and increases leaf water-use efficiency and oxidative stress in barley plants

Content Provider	Springer Nature Link
Author	Tränkner, Merle Jákli, Bálint Tavakol, Ershad Geilfus, Christoph Martin Cakmak, Ismail Dittert, Klaus Senbayram, Mehmet
Copyright Year	2016
Abstract	In water-scarce agro-environments a clear understanding of how plant nutrients like magnesium (Mg) affect plant traits related to water-use efficiency (WUE) is of great importance. Magnesium plays a crucial role in photosynthesis and is thus a major determinant of biomass formation. This study investigated the effect of Mg deficiency on leaf and whole plant water-use efficiency, δ$^{13}$C composition, hydrogen peroxide (H$_{2}$O$_{2}$) production and the activity of key enzymes involved in ROS scavenging in barley.Barley (Hordeum vulgare) was grown in hydroponic culture under three different levels of Mg supply (0.01, 0.1, 0.4 mM Mg). WUE was determined on the leaf-level (leaf-WUE), the biomass-level (biomass-WUE) and via carbon isotope discrimination (δ$^{13}$C). Additionally, concentrations of Mg, chlorophyll and H$_{2}$O$_{2}$, and the activities of three antioxidative enzymes (ascorbate peroxidase, glutathione reductase and superoxide dismutase) in youngest fully expanded leaves were analyzed.Dry matter production was significantly decreased (by 34 % compared to control) in Mg deficient barley plants. Mg deficiency also markedly reduced leaf Mg concentrations and chlorophyll concentrations, but increased H$_{2}$O$_{2}$ concentrations (up to 55 % compared to control) and the activity of antioxidative enzymes. Severe Mg deficiency decreased biomass-WUE by 20 %, which was not reflected regarding leaf-WUE. In line with leaf-WUE data, discrimination against $^{13}$C (indicating time-integrated WUE) was significantly reduced under Mg deficiency.Mg deficiency increased oxidative stress indicating impairment in carbon gain and decreased biomass-WUE. Our study suggests that biomass-WUE was not primarily affected by photosynthesis-related processes, but might be dependent on effects of Mg on night-time transpiration, respiration or root exudation.
Starting Page	409
Ending Page	423
Page Count	15
File Format	PDF
ISSN	0032079X
Journal	Plant and Soil
Volume Number	406
Issue Number	1-2
e-ISSN	15735036
Language	English
Publisher	Springer International Publishing
Publisher Date	2016-04-17
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Magnesium Water use efficiency Carbon discrimination Oxidative stress Barley Plant Sciences Soil Science & Conservation Plant Physiology Ecology
Content Type	Text
Resource Type	Article
Subject	Soil Science Plant Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Magnesium deficiency decreases biomass water-use efficiency and increases leaf water-use efficiency and oxidative stress in barley plants

Zinc fertilization and water stress affects plant water relations, stomatal conductance and osmotic adjustment in chickpea (Cicer arientinum L.)

Genotypic variations in carbon isotope discrimination, transpiration efficiency, and biomass production in rice as affected by soil water conditions and N

Physiological and biochemical impacts of magnesium-deficiency in two cultivars of coffee

Differential $^{13}$C Isotopic Discrimination in Maize at Varying Water Stress and at Low to High Nitrogen Availability

Carbon isotope composition, water-use efficiency and biomass productivity of Eucalyptus microtheca populations under different water supplies

Adequate magnesium nutrition mitigates adverse effects of heat stress on maize and wheat

Effects of N and water supply on water use-efficiency of a semiarid grassland in Inner Mongolia

Variability in water use efficiency at the leaf level among Mediterranean plants with different growth forms

Magnesium deficiency decreases biomass water-use efficiency and increases leaf water-use efficiency and oxidative stress in barley plants

Similar Documents

Magnesium deficiency decreases biomass water-use efficiency and increases leaf water-use efficiency and oxidative stress in barley plants

Zinc fertilization and water stress affects plant water relations, stomatal conductance and osmotic adjustment in chickpea (Cicer arientinum L.)

Genotypic variations in carbon isotope discrimination, transpiration efficiency, and biomass production in rice as affected by soil water conditions and N

Physiological and biochemical impacts of magnesium-deficiency in two cultivars of coffee

Differential $^{13}$C Isotopic Discrimination in Maize at Varying Water Stress and at Low to High Nitrogen Availability

Carbon isotope composition, water-use efficiency and biomass productivity of Eucalyptus microtheca populations under different water supplies

Adequate magnesium nutrition mitigates adverse effects of heat stress on maize and wheat

Effects of N and water supply on water use-efficiency of a semiarid grassland in Inner Mongolia

Variability in water use efficiency at the leaf level among Mediterranean plants with different growth forms

Magnesium deficiency decreases biomass water-use efficiency and increases leaf water-use efficiency and oxidative stress in barley plants