27 Result(s)
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Article
Hong Fashui
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Article
Extended X-ray absorption fine-structure study of the bound form of lanthane in chlorophyll-a from Dicranopteris dichotoma
The in vivo coordination structure of lanthanum ions interacting with chlorophyll-a of the fern Dicranopteris dichotoma grown in a rare earth minefield in southern China was determined by the extended x-ray absor...
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Article
Study on the mechanism of cerium nitrate effects on germination of aged rice seed
Attempts were made to promote germination of naturally and artificially aged rice seeds by treating them with cerium nitrate. The germination rate, germination index, and vigor index of aged rice seed were sig...
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Article
Study of lanthanum on seed germination and growth of rice
A study of lanthanum nitrate on the seed germination and the growth of rice was conducted. The results of this experiment indicate that soaking in a proper concentration of La(NO3)3 could accelerate the germinati...
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Effects of cerium on nitrogen metabolism of peach plantlet in vitro
The effect of CeCl3 on the rooting and nitrogen metabolism of the peach plantlet in vitro was studied when the CeCl3 was added to the rooted medium. The results showed that the rooting rate and the fresh weight o...
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Article
Effects of Ce3+, Cd2+, and Hg2+ on activities and secondary structure of trypsin
The different effects of Ce3+, Cd2+, and Hg2+ on the activities and secondary structure of trypsin were studied. The results showed that trypsin activity was increased substantially by Ce3+ in 0.5–5 µmol/L concen...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
