Results 171 to 180 of about 3,245 (203)

Characterization of IMT1, myo-Inositol O-methyltransferase, from Mesembryanthemum crystallinum

Archives of Biochemistry and Biophysics, 1995
A full-length transcript, Imt1, encoding myo-inositol O-methyltransferase (EC 2.1.1.X) from the halophyte Mesembryanthemum crystallinum was expressed in Escherichia coli. The enzyme, IMT1, uses S-adenosyl-L-methionine to methylate myo-inositol to form D-ononitol.
G, Rammesmayer, H, Pichorner, P, Adams, R G, Jensen, H J, Bohnert   +4 more
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Antioxidative response of Mesembryanthemum crystallinum plants to exogenous SO2 application

Plant Science, 2007
Abstract The facultative halophyte, Mesembryanthemum crystallinum shifts its mode of carbon assimilation from the C3 pathway to crassulacean acid metabolism (CAM) in response to many factors that lead to the generation of reactive oxygen species (ROS) at the cellular level.
Ewa Surówka, Piotr Karolewski, Ewa Niewiadomska, Marta Libik, Zbigniew Miszalski   +4 more
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The photosynthetic apparatus of C3 and CAM-induced Mesembryanthemum crystallinum L.

Acta Applicandae Mathematicae, 1988
Accompanying the CAM induction of Mesembryanthemum crystallinum L. grown in high salinity there are changes in the enzymes of carbon metabolism. However, there are no changes in the electron transport activities, Chla/b ratios or in the distribution of chlorophyll amongst the various pigment-protein complexes of isolated thylakoids.
S, Köster, J M, Anderson
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Ultrastructure of ferritin in the leaves of Mesembryanthemum crystallinum under stress conditions

Russian Journal of Plant Physiology, 2007
The location and structure of ferritin in the parenchyma of leaf minor veins of the common ice plant (Mesembryanthemum crystallinum L.) treated with exogenous putrescine under salinity conditions were investigated by electron microscopy. Considerable aggregates of ferritin were detected in the chloroplasts of bundle sheath cells, in companion phloem ...
N. V. Paramonova, N. I. Shevyakova, Vl. V. Kuznetsov   +2 more
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Water status in Mesembryanthemum crystallinum under heavy metal stress

Environmental and Experimental Botany, 2011
Abstract Heavy metals (HMs) are known to have negative effects on plant water status; however, the mechanisms by which plants rearrange their water relations to adapt to such conditions are poorly understood. Using the model plant Mesembryanthemum crystallinum, we studied disturbances in water status and rapid plant defence responses induced by ...
Valentina Kholodova, Kirill Volkov, Anna Abdeyeva, Vladimir Kuznetsov   +3 more
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Cytokinin as a negative effector of phosphoenolpyruvate carboxylase induction in Mesembryanthemum crystallinum

Journal of Plant Physiology, 1997
Summary The possible role of cytokinin in the signal transduction pathway leading to phospho enol pyruvate carboxylase (PEPCase; EC 4.1.1.31) induction in the halophilic species Mesembryanthemum crystallinum L. was investigated. PEPCase is known to be induced by water stress in this species.
Wilfried Peters, Erwin Beck, Mechtild Piepenbrock, Bettina Lenz, Jürgen M. Schmitt   +4 more
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Changes in Gene Expression Elicited by Salt Stress in Mesembryanthemum crystallinum

1989
Plants are subjected to a variety of environmental stresses such as extreme temperatures, changes in water potential, anaerobiosis, water pollutants or heavy-metal ions. With regard to water or salt stress, a great deal of physiological data has been reported which describes specific responses of plants to stresses induced by drought or salinity.
H. J. Bohnert, J. A. Ostrem, J. M. Schmitt   +2 more
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Some Physicochemical Properties of Carbonic Anhydrase in Mesembryanthemum Crystallinum Leaves

2013
CA extracted from the leaves of C3 plants as well as CAM mode M.crystallinum plants which had been watering with 0.4 mol NaCl for a week manifested a wide range of the pH optimum. The extractable activity of CA from M. crystallinum was similar to that of C3 and C4 higher plants. Subcellular localization of CA from C3 plants and leaves of the CAM mode M.
Sh Bayramov, T. Orujova, H. Babayev, N. Guliyev   +3 more
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Na+/H+ transporters of the halophyte Mesembryanthemum crystallinum L.

2008
The aim of this work was to understand the mechanisms of Na+ accumulation in the halophyte Mesembryanthemum crystallinum L. during NaCl induced transition from C3 photosynthesis to crassulacean acid metabolism (CAM). Under high salinity M. crystallinum is a strong salt includer accumulating high amounts of Na + in leaves.
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Heavy Metal Root Efflux of Mesembryanthemum crystallinum and Nicotiana tabacum

2023
Heavy metal pollution is increasing globally due to anthropogenic activities which create health risks not only for societies, but also native plant species. Plants have shown various methods for metal detoxification within plants, including root efflux which is proposed to flush out excessive and toxic ions from the rhizosphere.
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