Dr. Sonika Gupta

Teri University, New Delhi


Expertise:  Plant Molecular Biology,  Biotechnology, Plant tissue culture and downstream processing


Dr. Sonika Gupta has done Doctorate from National Institute of Plant Genome Research (NIPGR), Delhi and later she joined in a Teri University as a lecture and she has many awards and honors. Presently she is working as a assistant professor at Teri University, New Delhi, India.

Presentation :

Title : Stress Response and Adaptations in Plants

Abstract :

In divergence to the majority of animal species, plants are sessile and are, persistently challenged by environmental alarms. Over the eras, our understanding on environmental cues responses of plants has enriched significantly, for example, the mechanisms for transducing environmental stress stimuli into cellular signalling cascades and gene transcription and translation networks among others. Recent studies have shown that plants keep past environmental events memories and also responses to the stress can be inherited.

Plants respond to stress in multiple ways. It can be divided into two primary categories. Abiotic stress is a physical or chemical cue that the environment may impart on a plant. Biotic stress is a biological cue to which a plant may be exposed during its epoch. Some plants may be damaged by a stress, which means that they display one or more metabolic dysfunctions. If the stress is moderate and short term, the damage may be transient and the plant may recover when the stress is removed. If the stress is severe enough, it may inhibit flowering, seed development and may induce senescence leading to plant death. Such plants are considered to be susceptible for that stress. The stress caused by abiotic factors alter plant metabolism leading to undesirable effects on growth, development and productivity of plants. If the stress persists for longer period it may lead to unbearable metabolic load on cells leading to reduced growth and in extreme cases results in plant death.

The significance of altered metabolism under abiotic stress has been highlighted in past as plants adaptions to environmental stresses, for example, the diversion of carbon to polyol biosynthesis among others. To combat these stresses, plants exhibit multiple mechanisms which make them survive the stress with the formation of novel biomolecules. Nevertheless, the degree of tolerance varies from plant to plant, stress tolerance mechanisms start with stress perception followed by the formation of gene products that are involved in cellular protection and repair. The signal transduction pathways that detect stress play a crucial role in the induction of stress adaptation in plants.

Related Journals & Conferences :

International Biotechnology and Pharmaceutical Industry Forum