Abiotic Stress Alleviation in Peppermint Using Conventional Plant Growth Regulators

Résumé fourni par la source

58 Abiotic stressors namely cold, salinity, severe temperatures, water scarcity, heavy metal, and metalloid toxicity usually limit plant growth in peppermint. The negative consequences of these stresses result in low chlorophyll concentration, which has a direct impact on photosystems, causing altered glucose metabolism and triggering secondary strains such as nutritional stress, and oxidative damage, resulting in decreased plant development. Plant growth regulators (PGRs) are signaling elements generated inside plants. Under climatic or stressful conditions, biosynthetic pathways normally regulate development and growth that either operate at synthesis site or are transferred to another plant parts. Several phytohormones, comprising abscisic acids, auxins, brassinosteroid, cytokinin, ethylene, and gibberellin regulate developmental activities and plant growth. However, new chemicals such as strigolactones, nitric oxide, and polyamines are now included in this list of PGRs in the past few years. PGRs are essential for expansion and progress of plant, and influence functional and biochemical processes of peppermint. Researchers have stated the importance of PGRs in reducing abiotic stress in plants. This chapter&s;s main goal is to emphasize how various plant-growth regulators can be used to lessen abiotic stress in peppermint. Numerous signaling pathways are also highlighted, which are engaged in response mechanisms and improve plant survival in harsh environmental conditions.

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