PAID ACCESS | Published on : 03-Feb-2025 | Pages: 16-22 | Doi : 10.37446/edibook242025/16-22
Waterlogging represents a major abiotic stress for plants, leading to the prohibition of aerobic respiration and constraining energy metabolism, thereby impeding growth and various developmental processes. Anoxia is a condition developed, which ultimately allows fermentation i.e., anaerobic respiration due to the unavailability of oxygen. Plants can adapt to waterlogging by making changes to their morphological structure, energy production, photosynthesis, respiration, oxidative stress, hormone synthesis and signalling cascades following exposure to waterlogging stress. Morphological changes like epinasty, lenticle formation help to mitigate this stress. Flooding stress remains as a nightmare for major crops like Pigeon pea, millets and other crops. In this chapter, we outline the features of primary aerenchyma including schizogenous and lysigenous types, and discuss about other adaptative mechanism the plant exhibits to overcome waterlogging stress.
Waterlogging, Anoxia, Oxidative stress, Epinasty, Aerenchyma
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