Development of Molecular Markers and Their Application in Botany Research

概述了分子标记的研究进展 ,并对其在植物研究领域中的应用及前景作了介绍和展望 . 【英文摘要】 The development of molecular markers and their application in plant study were summarized,and the application prospect were pveviewed.国家自然科学基金!资助项目 (39870 6 30

Progress in Plant Resistance Induced by Salicylic Acid

水杨酸是一种重要的内源信号分子 ,能够激活一系列植物抗性防卫反应 .为了研究这种抗性反应 ,对水杨酸诱导植物抗病性、抗旱性、抗盐性及与乙烯作用的新进展作了概述 ,并从水杨酸与过氧化氢及其代谢酶类相互作用的角度探讨了水杨酸诱导植物抗性生理的分子机理 【英文摘要】 Salicylic acid is an important endogenous signal molecule. It can activate several plant defense responses. New progresses in plant disease resistance, drought resistance, salt resistance and the interaction of salicylic acid with ethylene, and the molecular mechanisms of salicylic acid inducing plant resistance have been established at the interaction of salicylic acid with hydrogen peroxide and its metabolizing enzymes

Progresses of plants response to cadmium

总结了近年来植物对一重要环境污染物镉的反应研究报道。探讨了镉对植物的各种毒性效应 ,并论述植物对镉胁迫采取的相应防御机制 ,如络合 ( PC、MT)、应激 (应激乙烯、应激蛋白 ) ,及额外防御机制 ,如细胞壁固定化、原生质膜排除、区域化、过氧化物酶等 【英文摘要】 The paper summarizes progresses in the field of plants response to cadmium(Cd), an important and widespread heavy metal in enviroment.We analyse the toxic effects of Cd on plants and discuss the response mechanisms of plants to Cd stress including exclusion, immobilization and compartmentalization of the ions, synthesis of phytochelatins and metallothionein, inducements of stess protein and stess ethylene. The higher plants are able to uptake Cd depending on concentration and bioavailability of Cd in the ...国家自然科学基金资助项目 ( 3980 0 0 87;39870 6 30

Progress in Mechanisms of Plant Resistance to Salt Stress

近年来植物抗盐机理的研究进展作了概述 ,阐明了植物对盐分的反应及盐分对植物的不同伤害 ,并从盐生植物的形态、生理和分子水平上综述了盐生植物的抗盐机理 ,最后对今后植物抗盐机理的研究可能存在的问题提出了自己的观点 【英文摘要】 The research of the mechanisms of salt resistance in plants in recent years is summarized.The responses to salinity and different harms in plants are elucidated,and the mechanisms of salt resistance in plants in morphological,physiological and molecular levels are also summarized.The possible problems in research in mechanisms of salt resistance in plants are raised.国家自然科学基金资助项目 ( 39870 6 30

Advances in the studies on selenium in soil and selenium biological effect.

综述了土壤中Se的形态分布、有效性及其与植物关系研究方面的进展。论述了不同形态的Se在土壤中分布情况、对植物的有效性与土壤 pH值、化学及矿物学组成、吸附表面、氧化还原状态等物理化学性质的关系 ;Se在植物中的富集、转化及其对植物的抗氧化、促进生长、提高产量和质量等各种生物学效应 ;并在此基础上对Se的应用前景做了展望 【英文摘要】 This paper reviewed advances in the studies on forms and bioavailability of selenium(Se) in soil and the relationship between selenium and plant. The coverage aspects include the relationship between the distribution and bioavailability of various forms of Se and the physical and chemical properties, including pH, chemical and mineralogical composition, adsorbing surface and oxidation-reduction status; the accumulation and biological effect of Se in plant such as anti oxidizing, growth promoting, mass and ...国家自然科学基金 (3 0 2 710 65 ,3 9970 43 8,3 9870 63 0 );; 福建省自然科学基金项目 (C970 0 2 )资

Effects of Lanthanum Chloride on Activity of Redox System in Plasma Membranes of Rice Seedling Roots

Highly purified plasma membranes were isolated by aqueous two phase partitioning methods from rice (Oryza sativa) seedling roots. The effects of lanthanum chloride (LaCl 3) on the activities of redox system of plasma membranes were studied. The reduction rate of K 3Fe(CN) 6 and the oxidation rate of NADH by plasma membranes are stimulated by LaCl 3 below the concentration of 40 μmol·L -1 , but are reduced by above the concentration of 40 μmol·L -1 . The optimal concentration of LaCl 3 is a...国家自然科学基金资助项目 ( 39970 438

Effects of Lanthanum Chloride on Activity of Redox System in Plasma Membrane of Rice Seedling Roots

The plasma membrane was isolated and purified by using the method of aqueous two phase partitioning from rice (Oryza sativa) seedling roots. The effect of LaCl 3 on the activity of redox system of plasma membrane has been studied. The reduction rate of Fe(CN) 3- 6 and the oxidation rate of NADH in plasma membrane are stimulated below the concentration of 40 μmol·L -1 , but depressed in pace with the increasing of LaCl 3 over the concentration of 40 μmol·L -1 . The possible effect of LaC...ProjectsupportedbytheNationalNaturalScienceFundofChina (3 9970 43 8;;3 9870 63 0 )andtheNaturalScienceFundofFujianProvince (C970 0 2

Effects of Lanthanum Chloride on Activity of Redox System in Plasma Membranes of Rice Seedling Roots

Highly purified plasma membranes were isolated by aqueous two phase partitioning methods from rice (Oryza sativa) seedling roots. The effects of lanthanum chloride (LaCl 3) on the activities of redox system of plasma membranes were studied. The reduction rate of K 3Fe(CN) 6 and the oxidation rate of NADH by plasma membranes are stimulated by LaCl 3 below the concentration of 40 μmol·L -1 , but are reduced by above the concentration of 40 μmol·L -1 . The optimal concentration of LaCl 3 is a...国家自然科学基金资助项目 ( 39970 438

Effects of La~(3+) on H~+ Transmembrane Gradient and Membrane Potential in Rice Seedling Roots

The effects of LaCl 3 on membrane potential and transmembrane proton gradient for rice ( Oryza sativa ) seedling roots were studied. Highly purified plasma membranes were isolated by aqueous two phase partitioning method. Both the gradient of transmembrane proton and membrane potential were stimulated by certain low concentration of LaCl 3 and depressed by high concentration of LaCl 3. The optimal concentration of La 3+ was around 40～60 μmol·L -1 for transmembrane proton gradient and membran...国家自然科学基金 ( 39970 438;39870 630 )资助项目 ;; 福建省自然科学基金 (C970 0 2 )资助项