43 / 61
Volume10, Issue 12 (Suppl)
J Proteomics Bioinform, an open access journal
ISSN: 0974-276X
Page 100
conferenceseries
.com
World Biomarkers & Pharma Biotech 2017
December 07-09, 2017
December 07-09, 2017 | Madrid, Spain
&
20
th
International Conference on
PHARMACEUTICAL BIOTECHNOLOGY
9
th
WORLD BIOMARKERS CONGRESS
JOINT EVENT ON
Potassium and zinc increase tolerance to salt stress in wheat (
Triticum aestivum
L.)
Amin Ullah Jan
1
and
Fazal Hadi
2
1
Shaheed Benazir Bhutto University, Pakistan
2
University of Malakand, Pakistan
P
otassium and zinc are essential elements in plant growth and metabolism and plays a vital role in salt stress tolerance. To
investigate the physiological mechanism of salt stress tolerance, a pot experiment was conducted. Potassium and zinc significantly
minimize the oxidative stress and increase root, shoot and spike length in wheat varieties. Fresh and dry biomass was significantly
increased by potassium followed by zinc as compared to control C. The photosynthetic pigment and osmolyte regulator (proline,
total phenolic, and total carbohydrate) were significantly enhanced by potassium and zinc. Salt stress increase MDA content in wheat
varieties while potassium and zinc counteract the adverse effect of salinity and significantly increased membrane stability index. Salt
stress decrease the activities of antioxidant enzymes (superoxide dismutase, catalase and ascorbate peroxidase) while the exogenous
application of potassium and zinc significantly enhanced the activities of this enzyme. Significant positive correlation was found of
spike length with proline (R2=0.966 ***), phenolic (R2=0.741*) and chlorophyll (R2=0.853**). The MDA content showed significant
negative correlation (R2=0.983***) with MSI. It is concluded that potassium and zinc reduced toxic effect of salinity while its combine
application showed synergetic effect and significantly enhanced salt tolerance.
aminjan@sbbu.edu.pkJ Proteomics Bioinform 2017, 10:12(Suppl)
DOI: 10.4172/0974-276X-C1-110