Search results
Results from the WOW.Com Content Network
Hydraulic signals in plants are detected as changes in the organism's water potential that are caused by environmental stress like drought or wounding. [1] The cohesion and tension properties of water allow for these water potential changes to be transmitted throughout the plant. Plants respond to external stimuli through thigmomorphogenesis.
Calcium signaling is the use of calcium ions (Ca 2+) to communicate and drive intracellular processes often as a step in signal transduction. Ca 2+ is important for cellular signalling , for once it enters the cytosol of the cytoplasm it exerts allosteric regulatory effects on many enzymes and proteins .
Furthermore, the unstressed plants were able to send additional stress cues to other neighboring unstressed plants in order to relay the signal. A cascade effect of stomatal closure was observed in neighboring unstressed plants that shared their rooting system but was not observed in the unstressed plants that did not share their rooting system ...
Plant stress research looks at the response of plants to limitations and excesses of the main abiotic factors (light, temperature, water and nutrients), and of other stress factors that are important in particular situations (e.g. pests, pathogens, or pollutants). Plant stress measurement usually focuses on taking measurements from living plants.
Plants respond to high salinity soils by accumulating sodium and chlorine, and reducing uptake of macronutrients and other ions. This accumulation results in inhibition of calcium signaling. [25] In order to combat this type of stress, plants must have strategies and adaptations in place for survival, such as osmotic stress pathways. [26]
A plant with a large mass of leaves in relation to the root system is prone to drought stress as the leaves may lose water faster than the roots can supply it. Newly planted plants and poorly established plants may be especially susceptible to dehydration stress because of the limited root system or the large mass of stems and leaves in ...
In botany, drought tolerance is the ability by which a plant maintains its biomass production during arid or drought conditions. [1] [2] [3] Some plants are naturally adapted to dry conditions, surviving with protection mechanisms such as desiccation tolerance, detoxification, or repair of xylem embolism. [3]
Under moderate drought conditions, root architectural changes exerted a predominant effect on increased RRD, but under severe drought, root-shoot allocation and root architecture played equally important roles. These results tell us that the root architecture adjustments being made and root-shoot allocation caused deep rooting in P. euphratica ...