Effect of Temperature and ABA Exposure on LlaNAC Expression in Transformed Tobacco Plants
Journal: Open Access Journal of Agricultural Research (Vol.2, No. 3)Publication Date: 2017-02-22
Authors : Singh S; Khalid H;
Page : 1-5
Keywords : ABA stress; Temperature stress; Hypersensitive; LlaNAC;
Abstract
NAC is one of the largest TF families in plants, with more than 100 genes per plant. NAC proteins are involved in a panorama of functions in a cell, virtually controlling the growth and development of the plants, as well as, protecting the plants against variety of stresses. We have assessed LlaNAC over-expressor (transgenic) tobacco lines (NC2, NC7b, NC10 and NC18), which were earlier displayed enhanced cold tolerance, biomass, growth and early maturity [1] in comparison to the WT. Here we report, enhanced level of relative transcript abundance in LlaNAC transformed plants to cope with heat stress together with the activation of antioxidant enzymes. The transgenic plants showed maximum of nearly two fold elevations in LlaNAC expression when exposed to temperature stress of 40°C. Exposure to ABA (10 µM) caused upregulation of LlaNAC gene with an elevation of upto 1.45 fold while, higher concentration of ABA (50 µM) renders transgenic plants hypersentive to ABA treatments as compared to wild type plants (WT).
Other Latest Articles
- Role of Plant Extracts in Treatment of Cerebral Ischemia
- AN ASSESSMENT OF THE KNOWLEDGE, ATTITUDES AND PRACTICE OF ADULT EDUCATION PRINCIPLES BY UNIVERSITY EXTENSION EDUCATION PART-TIME TUTORS IN LUSAKA DISTRICT OF ZAMBIA
- Beneficial Role of Curcumin in Diseases Treatment: A Mini Review
- PTSD Symptomatology in Neurology Nurses who Experience Verbal and Physical Abuse from Patients and Families
- Phytochemical Analysis of Traditional Medicinal Plants and their Antimicrobial Activity: An Experience from North East India
Last modified: 2018-05-26 16:08:45