glycophyte


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

glycophyte

[′gli·kə‚fīt]
(botany)
A plant requiring more than 0.5% sodium chloride solution in the substratum.
Mentioned in ?
References in periodicals archive ?
petiolaris are salt-intolerant species (glycophytes), but H.
(2014) A comparative study of the early osmotic, ionic, redox and hormonal signaling response in leaves and roots of two halophytes and a glycophyte to salinity.
2 A) which was far greater than 1 a minimum value suggested for optimal efficiency of protein synthesis and normal growth of glycophyte plants under saline conditions (Imadaet al.
Of the recorded species, Sesuvium portulacastrum and Batis maritima were classified as strict halophytes (H) due to their ability to withstand high concentrations of salt in the soil (>40 psu), 12 were facultative halophytes (FH) and the rest were terrestrial glycophytes (G).
Absence of halophytes from the less saline soils in upper zones of salt marshes often is hypothesized to be due to their inability to compete with less salt-tolerant glycophytes that dominate these brackish and freshwater habitats (Purer, 1942; Hinde, 1954; Ungar et al., 1979; Bertness & Ellison, 1987; Bertness, 1991a, 1991b; Wilson et al., 1996).
Moreover, it has been well documented that salt treatment of plants induces the activities of the plasma membrane proton pumps both in Halophytes and Glycophytes. Accumulation of mRNAs of PM [H.sup.+]-ATPase under NaCl stress and the positive correlation with salt tolerance are well documented [10, 13, 6, 15].
The harmful action of salinity on gs (Figure 2A) is a common response of glycophytes to salt stress, as a way to minimize water losses and maintain high cell water potential (Kusvuran, 2012; Freire et al., 2014; Sousa et al., 2016), probably regulated by the occurrence of a chemical signaling between roots and shoots after perceiving the osmotic stress, which stimulates stomatal closure (Souza et al., 2011).
The role of [Na.sup.+] and [K.sup.+] transporters in salt stress adaptation in glycophytes. Frontiers in Physiology 8: 509.
For accessions [m.sup.2], [m.sup.3], m6, m7, m9, m11, m14 and m15, the Na (+)/Ca (++) and Na (+)/Mg (++) relations at 250 DAT (Figure 4) did not represent the antagonism between nutrients or even showed relative toxicity to ion sodium because such ionic relationships with values below 0.60 are considered suitable for optima efficiency of metabolism in glycophytes (Ribeiro-Barros et al., 2016).
The difference in salt tolerance mechanism of halophytes with that of glycophytes has already been underlined in the plants of saline land.
[Na.sup.+] was a key toxic cation of salt stress, and neither halophytes nor glycophytes could tolerate large amounts of [Na.sup.+] in the cytoplasm.
Plants on the basis of adaptive evolution can be classified roughly into two major types: the halophytes (that can withstand salinity) and the glycophytes (that cannot withstand salinity and eventually die).