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Plant stress
Plant stress
Given that plants are sessile organisms, they face these stresses daily and have devised mechanisms to tolerate and even reduce the effects of these environmental conditions. They sense the external stress, get primed and thus produce physiological responses to confront the stress.Plants are able to defend themselves from predators by synthesizing chemical attractants as a response of a stimuli produced from being attacked. Once the signal is produced, natural predators of the herbivores are attracted to the plant thus effectively reducing the attack from the original predator. These natural chemical messages are called VOCs (Volatile Organic Compounds), these compounds not only function to attract natural predators but are also involved in other types of defense mechanisms, such as S.A.R (Systemic Acquired Resistance).
Oxidative Damage and Antioxidant Defense
Oxidative Damage and Antioxidant Defense
Abiotic stress is defined as the negative impact of non-living factors on living organisms in a specific environment. The stresses include drought, salinity, low or high temperatures, and other environmental extremes. Abiotic stresses, especially hypersalinity and drought, are the primary causes of crop loss worldwide.
Plants may experience physiological stress when an abiotic factor is deficient or in excess (referred to as an imbalance). The deficiency or excess may be chronic or intermittent. ... Different abiotic factors may cause similar primary physiological effects because they affect the same cellular processes.
Plants may experience physiological stress when an abiotic factor is deficient or in excess (referred to as an imbalance). The deficiency or excess may be chronic or intermittent. ... Different abiotic factors may cause similar primary physiological effects because they affect the same cellular processes.
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