Molecular and Physiological Insights into Plant Stress Tolerance and Applications in Agriculture- Part 2

The Role of Terpenoids in Plant Development and Stress Tolerance

Author(s): Fatima El Amerany * .

Pp: 71-98 (28)

DOI: 10.2174/9789815179699124010006

* (Excluding Mailing and Handling)

Abstract

Plant terpenoids and their precursors, terpenes, are among the most important classes of plant secondary metabolites that have provoked increased interest regarding their application in the medical field to treat different health issues. Additionally, terpenoids are known to play a crucial role in many different plant processes, such as photosynthesis, root growth, flower production, fruit set, and plant interaction with the environment. A plant can produce different kinds of terpenoids with diverse structures and functions. These compounds are usually liberated in the atmosphere in the form of flavors or fragrance compounds or stored in plant organs, such as glandular trichomes. Due to increased water scarcity, salt stress, mineral deficit, temperature level, and pathogens resistance, it has become difficult to provide natural conditions for the development of some plant species, which has led to a shortage in levels of some naturally occurring compounds, such as terpenoids. So, to reduce the alteration of terpenoid production, some strategies have been recently applied, like metabolic engineering and applying biofertilizers. Thus, this chapter will define the different classes of terpenoids produced by plants, their metabolic pathways, and their roles in plant development and physiology, nodule formation, mycorrhizal symbiosis, wounding healing, and plant defense as well as recent advances regarding the increase in the accumulation of terpenoids through metabolic engineering and exogenous application of natural substances.

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