HYBRID EVENT: You can participate in person at Rome, Italy or Virtually from your home or work.

3rd Edition of Euro-Global Conference on Biotechnology and Bioengineering

June 14-15 | Hybrid Event

June 14-15, 2023 | Rome, Italy
ECBB 2023

Afsana Praveen

Afsana Praveen, Speaker at Speaker for ECBB 2023
Noida International University, India
Title: Nitric oxide exposure impacts on morphology and auxin transport of Oryza sativa under arsenic stress


Nitric Oxide (NO), a signal molecule plays vital role to provide tolerance to abiotic stress in plants by interplay with reactive oxygen species, and thus promoting their growth and development. Arsenic (As) is a toxic metalloid and its contamination found in crop plants, mainly rice which is an important diet for millions of people. In this study 7 days old hydroponically grown rice seedlings were exposed to As(III) (150 μM), NO (100 μM), As(III)+NO for 48 h and control (without metal). We observed NO-mediated alteration on physiological, biochemical and stress-related parameters along with auxin transporter PIN genes (OsPIN1a, OsPIN1b, OsPIN1c, OsPIN1d, OsPIN2, OsPIN5a, OsPIN5c, OsPIN8, OsPIN9, OsPIN10b), expression under As stress. As exposure reduced the overall plant growth, formation of lateral roots, chlorophyll and protein content and enhanced the oxidative stress by increasing the level of antioxidant enzymes (SOD, CAT, APX, GR), and stress-related parameters (cysteine, proline, MDA, H2O2). Supplementation of NO along with As reduced the accumulation of As in rice seedlings, improved plant growth, and lateral root formation, increased chlorophyll and protein content and diminished the level of antioxidant enzymes and stress-related parameters by reducing ROS generation. The addition of NO also up-regulates the gene expression of auxin transporters. Overall, NO reduced the toxicity of As using various mechanisms and provide tolerance to its stress in rice seedlings.


Afsana completed M.Sc. with distinction from Jamia Millia Islamia, New Delhi (A central University) India. She has qualified the DBT-JRF (Department of Biotechnology, Government of India) and joined the same University for pursuing Ph.D. She Awarded degree in 2019 in Plant Biotechnology. She has joined Noida International University, Greater Noida, Uttar Pradesh, India as an Assistant professor. She has published 9 publications in scopus, SCI(E) journal, 1 book chapter with 206 citations.