Halophytes: An Integrative Anatomical Study

Abstract

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Anatomical Modifications in two <i style='mso-bidi-font-style:normal'>Juncus</i> Species under Salt Stress Conditions

“…The anatomical features in both control and salt-treated plants fit to the general structural plan of Juncus species (Blau, 1904;Burduja andToniuc, 1983-1984;Cutler, 1969;NappZinn, 1973;1974;1984;Vierhapper, 1930;Grigore et al, 2014). Several anatomical differences between the two species are evident, independently of the stress treatment.…”

“…The pith was parenchymatous, with many cells containing tannin; a few central cells appeared to be in the process of disorganisation. adaptation, stricto sensu (Grigore, 2012;Grigore et al, 2014). There is little experimental data to reveal whether the same features occur when halophytes are not exposed to salinity.…”

“…There is little experimental data to reveal whether the same features occur when halophytes are not exposed to salinity. According to Grigore et al (2014) the action of salt on halophytes, at least in histo-anatomical terms, should be rather considered as having a formative effect in an ecological and adaptive sense. This would apply for halophytes growing in nature, while -for those cultivated under controlled conditions -these changes are still open to discussion (Grigore et al, 2014).…”

“…Since aerenchyma forms in both, control and salt-stressed plants, it should be assumed that this is a constitutive feature rather than a response to the salt treatment. Formation of aerenchyma must be related instead to the conditions where this species grows, in a marsh, where this is a common anatomical feature (Grigore et al, 2014). In the control plants, the aerenchyma seems to be in direct contact with the central cylinder, while in treated plants it is separated from the stele by several layers of parenchyma cells.…”

Evaluation of Phytodesalination Potential of Vegetated Bioreactors Treating Greenhouse Effluent

“…While the high tolerance of halophytes to salinity is recognized as the common characteristic of these species, there is no universally-agreed definition for these plants [5,6]. Although some authors base their definition on the plants ability to complete the life cycle in a rather high salinity level of about 11.7 g NaCl L −1 (200 mM NaCl) [6], a recent database presents a broader list of halophytes by including the species that can tolerate a minimum salinity of 4.7 g NaCl L −1 (80 mM NaCl) [7].…”