International Journal of Science , Engineering and Management (IJSEM)

Monthly Journal for Science , Engineering and Management

Volume2,December 2017,

Topic : Plant Abiotic Stress Challenges from the Changing Environment: How to develop plants capable of mitigating climate change

Authors:Amrina Shafi || Ashaq Hussain Mir, Insha Zahoor, Umar Mushtaq, Saife Niaz

Abstract:Climate change is a multifaceted phenomenon with a wide range of impacts on the environment. Currently, with the competing uses of land and the growing world population, we are challenged to produce more in less area with diminishing resources, confronted with climate change and the unpredictable local microclimate adversely affecting crop productivity. Biotic and abiotic stress is a result of climate change. Abiotic stresses will remain a challenge to the natural environment and agriculture. The challenges before us in plant biology and crop improvement are to integrate the systems level information on abiotic stress response pathways, identify stress protective networks, and engineer environmentally stable crops that yield more. Plants evolve defence mechanisms to withstand these stresses, e.g. antioxidants and antioxidant enzymes. In the present study, two different antioxidant enzymes namely copper-zinc superoxide dismutase derived from Potentilla astrisanguinea (Cu-Zn/SOD) and ascorbate peroxidase (APX) from Rheum austral both of which are high altitude cold niche area plants of Western Himalaya were cloned and simultaneously over-expressed in Arabidopsis thaliana to alleviate salt stress. It was found that the transgenic plants over- expressing both the genes were more tolerant to salt stress than either of the single gene expressing transgenic plants during growth and development. Further, the transcriptomic analysis showed that most of the genes related to secondary metabolite production and phytohormones were overexpressed in transgenic lines under stress conditions. Thus, genetically engineered plants or biotech crops can contribute significantly both to sustainability and for the mitigation of the arduous challenges associated with possible climate change and global warming..

Keywords: Arabidopsis thaliana, Salinity, RNA sequencing, Phytohormones, Secondary metabolites, Climate Change

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DOI: 01.1617/vol4/iss12/pid07539

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Editor Image

Dr.Muhammad Ishtiaq,
Mirpur University of
Science & Technology,
Mirpur, Azad Kasmir.

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ISSN(Online): 2456-1304

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Thomson Reuters ID : q-6288-2016.
ORCiD Research ID : 0000-0001-9540-6799

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Journal Code : IJSEM
Electronic ISSN : 2456-1304
Impact Factor : 2.7
Frequency : Monthly
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