-
Article
Cerium Relieves the Inhibition of Chlorophyll Biosynthesis of Maize Caused by Magnesium Deficiency
Lanthanoids (Ln) were demonstrated to improve chlorophyll formation and the growth of plants. But the mechanism of the fact that Ln promotes chlorophyll biosynthesis of plants is poorly understood. The main ai...
-
Article
Effects of Cerium on Key Enzymes of Carbon Assimilation of Spinach Under Magnesium Deficiency
The mechanism of the fact that cerium improves the photosynthesis of plants under magnesium deficiency is poorly understood. The main aim of the study was to determine the role of cerium in the amelioration of...
-
Article
Physico-chemical Property of Rare Earths—Effects on the Energy Regulation of Photosystem II in Arabidopsis thaliana
Photosystem II (PSII) from Arabidopsis thaliana treated by lanthanum (La3+), cerium (Ce3+), and neodymium (Nd3+) were isolated to investigate the effects of 4f electron characteristics and alternation valence of ...
-
Article
Effects of Pb2+ on the Structure and Function of Photosystem II of Spirodela polyrrhiza
Lead (Pb2+) is a well-known highly toxic element, and Spirodela polyrrhiza is one of the hydrophytes most sensitive to Pb2+, which might be highly toxic to photosynthesis. However, the mechanism by which Pb2+ inh...
-
Article
Oxidative Stress Induced by Lead in Chloroplast of Spinach
Seedlings of spinach were grown in Hoagland’s medium containing 0, 20, 40, 60, 80, 100 μM PbCl2, respectively, for 4 weeks. Chloroplasts were assayed for overproduction of reactive oxygen species (ROS) such as su...
-
Article
Effects of Lead on Activities of Photochemical Reaction and Key Enzymes of Carbon Assimilation in Spinach Chloroplast
Photosynthesis is one of the most sensitive processes to lead, but the effects of lead on the transformation of light energy of plants are still not clearly understood. In the present paper, spinach was cultiv...
-
Article
Effects of Nano-Anatase on Ribulose-1, 5-Bisphosphate Carboxylase/Oxygenase mRNA Expression in Spinach
Being a proven photocatalyst, nano-anatase is capable of undergoing electron transfer reactions under light. In previous studies, we had proven that nano-anatase improved photosynthesis and greatly promoted sp...
-
Article
Absorption and Transfer of Light and Photoreduction Activities of Spinach Chloroplasts under Calcium Deficiency: Promotion by Cerium
Chloroplasts were isolated from spinach cultured in calcium-deficient, cerium-chloride-administered calcium-present Hoagland’s media or that of calcium-deficient Hoagland’s media and demonstrated the effects o...
-
Article
Rubisco Activase mRNA Expression in Spinach: Modulation by Nanoanatase Treatment
Characterized by a photocatalysis property, nanoanatase is closely related to the photosynthesis of spinach. It could not only improve light absorbance, transformation from light energy to electron energy, and...
-
Article
Nano-Anatase Relieves the Inhibition of Electron Transport Caused by Linolenic Acid in Chloroplasts of Spinach
Linolenic acid is an inhibitor of electron transport in chloroplasts of higher plants. It has obvious effects on the structure and function of chloroplasts. In the present paper, we investigated the nano-anata...
-
Article
Effect of Mg2+ on the Structure and Function of Ribulose-1,5-Bisphosphate Carboxylase/Oxygenase
Mg2+ in various concentrations was added to purified Rubisco in vitro to gain insight into the mechanism of molecular interactions between Mg2+ and Rubisco. The enzyme activity assays showed that the reaction bet...
-
Article
Influences of Lead (II) Chloride on the Nitrogen Metabolism of Spinach
Lead (Pb2+) is a well-known highly toxic element. The mechanisms of the Pb2+ toxicity are not well understood for nitrogen metabolism of higher plants. In this paper, we studied the effects of various concentrati...
-
Article
Influences of Calcium Deficiency and Cerium on Growth of Spinach Plants
The main aim of the study was to determine the role of cerium in the amelioration of calcium-deficiency effects in spinach plants. Spinach plants were cultivated in Hoagland’s solution. They were subjected to ...
-
Article
Antioxidant Stress is Promoted by Nano-anatase in Spinach Chloroplasts Under UV-B Radiation
A proven photocatalyst, titanium dioxide in the form of nano-anatase, is capable of undergoing electron transfer reactions under light. In previous studies, we had proven that nano-anatase could absorb ultravi...
-
Article
Effects of Nano-anatase on Spectral Characteristics and Distribution of LHCII on the Thylakoid Membranes of Spinach
In the article, we report that effects of nano-anatase on the spectral characteristics and content of light-harvesting complex II (LHCII) on the thylakoid membranes of spinach were investigated. The results sh...
-
Article
Promotion of Energy Transfer and Oxygen Evolution in Spinach Photosystem II by Nano-anatase TiO2
Being a proven photocatalyst, nano-anatase is capable of undergoing electron transfer reactions under light. In previous studies we had proven that nano-anatase improved photosynthesis and greatly promoted spi...
-
Article
Effects of Nanoanatase TiO2 on Photosynthesis of Spinach Chloroplasts Under Different Light Illumination
With a photocatalyzed characteristic, nanoanatase TiO2 under light could cause an oxidation–reduction reaction. Our studies had proved that nano-TiO2 could promote photosynthesis and greatly improve spinach growt...
-
Article
Effects of Nano-anatase TiO2 on Absorption, Distribution of Light, and Photoreduction Activities of Chloroplast Membrane of Spinach
The effects of nano-anatase TiO2 on light absorption, distribution, and conversion, and photoreduction activities of spinach chloroplast were studied by spectroscopy. Several effects of nano-anatase TiO2 were obs...
-
Article
Effect of La(III) on the growth and aging of root of loquat plantlet in vitro
The effect of lanthanum on the adventitious root growth, activities of superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD), O2 production rate, MDA content, and the relative plasma membrane permeabil...
-
Article
Effect of Eu3+ on characterization of photosystem II particles from spinach by spectroscopy
Photosystem II (PSII) particles were purified from Eu3+-treated spinach and studied by spectroscopy. The results showed that electron transport rate of PS II was accelerated by Eu3+ treating, that violet shift of...