Role of Exogenous Application of Proline and Glycine Betaine in the Salinity Tolerance of Solanaceae Family: A Review

Aman Shamil N*

BSc. Agriculture, Lovely Professional University, India

*Corresponding Author: Aman Shamil N, BSc. Agriculture, Lovely Professional University, India.

Received: July 18, 2022; Published: August 30, 2022

Abstract

Salinity stress is a major abiotic constraint affecting plant productivity and crop yield throughout the world. Solanaceae family comprising important food, ornamentals and medicinal species is an important family of cultivated crops in which salinity stress is acute. Solanaceae family in general is made of glycophytes and relies on salt-resistant mechanisms. Usage of potent osmoprotectants that are compatible plays an important role in counteracting the effect of osmotic stress. Exogenous application is a shortcut approach to induce protective osmolytes in plant species as compared to conventional breeding and transgenic approaches. Proline and Glycine betaine are widely acknowledged for their reduction in the harmful effects of salinity through osmoregulation. They also act as a scavenger of reactive oxygen species (ROS), stabilize sub-cellular structures, and act as a signal molecule interacting with other metabolic pathways during salt stress. A significant improvement in germination, growth, photosynthesis, and yield is observed when these osmolytes are applied exogenously under saline conditions. Despite numerous pieces of literature agreeing on the positive roles of proline and glycine betaine, the effects are not always apparent. Furthermore, sometimes sensitive plants accumulate higher concentrations of proline, and GB or negative effects are associated with plants due to toxicity. This review evaluates the understanding of the effects of exogenous application of proline and glycine betaine on major solanaceous crops and their relation with salt tolerance. This paradigm is also compared to the multiple salt tolerance mechanisms found in extreme halophytes of genus Lycium particularly the antioxidant capacity and proline content.

Keywords: Salinity tolerance; Osmolytes; Proline; Glycine Betaine; Solanaceae

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Citation

Citation: Aman Shamil N. “Role of Exogenous Application of Proline and Glycine Betaine in the Salinity Tolerance of Solanaceae Family: A Review". Acta Scientific Agriculture 6.9 (2022): 46-54.

Copyright

Copyright: © 2022 Aman Shamil N. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.