How does salt affect Arabidopsis?
Salt stress impairs K nutrition in Arabidopsis. With increased concentration of NaCl in the culture medium, Na+ content in plants increases whereas K content decreases.
Is Arabidopsis salt tolerant?
It was not obvious initially whether salt-sensitive mutants could be isolated from Arabidopsis because the plant is salt sensitive to begin with, typical of most glycophytic plants. Nevertheless, Arabidopsis is capable of tolerating up to 100 mmNaCl depending on treatment duration and other conditions.
Which plant is more tolerant to salt stress?
It has been shown that, compared with wild-type plants, camta6 mutants showed more tolerance to salt stress and ABA, with higher germination rate and less Na+ accumulation during seed germination. In contrast, at the seedling stage (4–11 days after germination), camta6 mutants showed more sensitive to salt stress.
How do you mitigate stress and salt?
Application of SA restores photosynthetic rates and photosynthetic pigment levels under salt (NaCl) exposure. Leaf water, osmotic potential, stomatal conductance transpiration rate, and biochemical parameters were also ameliorated in SA-treated plants under saline stress conditions.
How do plants respond to high salt stress?
The earliest response of plants to salt stress is reduction in the rate of leaf surface expansion followed by cessation of expansion as the stress intensifies but growth resumes when the stress is relieved. Metabolic processes like photosynthesis, protein synthesis and lipid metabolisms are affected due to salt stress.
Which physiological processes of plants are severely affected by salt stress?
Salinity stress causes osmotic stress and water deficit, increasing the production of ABA in shoots and roots [154–158]. The accumulation of ABA can mitigate the inhibitory effect of salinity on photosynthesis, growth, and translocation of assimilates [158, 159].
Which of the proteins is associated with salt stress?
thaliana (Du et al., 2008). Accordingly, the loss of function mutant is hypersensitive to salt stress, hence the protein name Salt Tolerance Related Protein (STRP) was proposed (Du et al., 2008). Different pieces of evidence propose the involvement of STRP in the response mechanisms to abiotic stresses.
What is the most salt tolerant crop?
“The most salt-tolerant crops are barley, camelina, rye, safflower, sunflower, and sugar beets,” says Aberle. “We’ve replaced a lot of these crops with the least-tolerant crops, which are dry beans, soybeans, corn, and field peas.”
What is a salt tolerant plant?
The salt tolerance of a plant is often defined as the degree to which the plant can withstand, without significant adverse effects, moderate or high concentrations of salt in water on its leaves or in the soil within reach of its roots.
Where does salt stress occur?
Salt stress occurs as a result of excessive salt accumulation in the soil and the plant cannot take water it needs with roots. Salt stress affects plants by toxicity caused by osmotic stresses and ions . As a result of these effects, some negative changes occur in plants.
Which crop is more tolerant to salinity?
Salt tolerance of cereal crops Most of the major cereal crops exhibit high tolerance to soil salinity. In this group are sorghum, wheat, triticale, ripe, oats and barley. Only exceptions are corn and rice.
How do plants respond to salt stress?