集约高产过程中土壤有机质动态初探

集约高产过程中土壤有机质动态初探崔玉亭,韩纯儒（北京农业大学,１０００９４）ＤｙｎａｍｉｃｓｏｆＳｏｉｌＯｒｇａｎｉｃＭａｔｔｅｒ（ＳＯＭ）ｉｎｔｈｅＰｒｏｃｅｓｓｏｆＡｇｒｉｃｕｌｔｕｒａｌＩｎｔｅｎｓｉｆｉｃａｔｉｏｎ￥．ＣｕｉＹｕｔｉｎｇ;ＨａｎＣｈｕｎｒｕ（ＢｅｉｊｉｎｇＡｇｒｉｃｕｌｔｕｒａｌＵｎｉｖｅｒｓｉｔｙ,１０００９４）．ＣｈｉｎｅｓｅＪｏｕｒｎａｌｏｆＥｃｏｌｏｇｙ,１９９３,１２（２）：３７—３８．Ｉｎｔｈｉｓｐａｐｅｒ,ｔｈｅｂａｌａｎｃｅｏｆｓｏｉｌｏｒｇａｎｉｃｍａｔｔｅｒ（ＳＯＭ）ｉｎｔｈｅｐｒｏｃｅｓｓｏｆａｇｒｉｃｕｌｔｕｒａｌｉｎｔｅｎｓｉｆｉｃａｔｉｏｎｉｎＣｈａｎｇｚｈｏｕｒｅｇｉｏｎｉｓｓｔｕｄｉｅｄａｎｄａｍｅｄｉｕｍ－ａｎｄｌｏｎｇ－ｔｅｒｍｐｒｅｄｉｃｔｉｏｎｏｆｉｔｓｄｙｎａｍｉｃｓｉｓｍａｄｅ。Ｔｈｅｒｅ－ｓｕｌｔｓｓｈｏｗｔｈａｔｄｕｒｉｎｇｔｈｉｓｐｒｏｃｅｓｓ,ｔｈｅｂａｌａｎｃｅｏｆＳＯＭｉｓｇｅｔｔｉｎｇｂｅｔｔｅｒ,ａｎｄａｆｔｅｒａｍｅｄｉｕｍｏｒｌｏｎｇｐｅ－ｒｉｏｄ（ｅ．ｇ,１０—２０ｙｅａｔｓ）,ｔｈｅＳＯＭｃｏｎｔｅｎｔｃａｎｇｅｔｔ     

Cloning and expression of 5,10-Methylenetetrahydrofolate reductase (MTHFR) gene

Ｉｔｗａｓｒｅｃｅｎｔｌｙｅｖｉｄｅｎｃｅｄｔｈａｔｍｅｔａｂｏｌｉｃｄｉｓｔｕｒｂａｎｃｅｓｏｆｆｏｌｉｃａｃｉｄａｒｅｃｌｏｓｅｌｙｒｅｌａｔｅｄｔｏｃａｒｄｉｏｖａｓｃｕｌａｒｄｉｓｅａｓｅｓａｎｄｂｉｒｔｈｄｅｆｅｃｔｓ.5,10ＭＴＨＦＲｉｓａｎｉｍｐｏｒｔａｎｔｅｎｚｙｍｅｉｎｔｈｅｆｏｌｉｃａｃｉｄｍｅｔａｂｏｌｉｃｓｙｓｔｅｍ.ＤｅｃｒｅａｓｅｉｎＭＴＨＦＲａｃｔｉｖｉｔｙｍａｙｉｎｄｕｃｅｔｈｅａｐｐｅａｒａｎｃｅｏｆｈｙｐｅｒｈｏｍｏｃｙｓｔｅｉｎｅｍｉａ,ｗｈｉｃｈｍａｙｃａｕｓ…     

mRNA differential display between sterile and fertile anther of rice and analysis of cDNA differential fragments

Ｃｙｔｏｐｌａｓｍｉｃｍａｌｅｓｔｅｒｉｌｉｔｙ(ＣＭＳ)ｉｎｈｉｇｈｐｌａｎｔｓｉｓａｍａｔｅｒｎａｌｌｙｉｎｈｅｒｉｔｅｄｔｒａｉｔｔｈａｔｓｕｐｐｒｅｓｓｅｓｖｉａｂｌｅｐｏｌｌｅｎｐｒｏｄｕｃｔｉｏｎａｎｄｉｓｅｘｔｒｅｍｅｌｙｖａｌｕａｂｌｅｆｏｒｔｈｅｐｒｏｄｕｃｔｉｏｎｏｆｈｙｂｒｉｄｓｅｅｄｓ.ＡｐｐｌｉｃａｔｉｏｎｏｆＣＭＳｒｉｃｅｔｏｄｅｖｅｌｏｐｍｅｎｔｏｆｈｙｂｒｉｄｒｉｃｅｖａｒｉｅｔｉｅｓｈａｓａｌｒｅａｄｙｂｅｅｎａｖａｉｌａｂｌｅｉｎＣｈｉｎａｓｉｎｃｅ1976.Ｉｎｒｅ…     

6－Dimethylaminopurine（6－DMAP） Spontaneously Induces Interphase Transition Of Metaphase Mouse Oocytes

６－Ｄｉｍｅｔｈｙｌａｍｉｎｏｐｕｒｉｎｅ（６－ＤＭＡＰ）ＳｐｏｎｔａｎｅｏｕｓｌｙＩｎｄｕｃｅｓＩｎｔｅｒｐｈａｓｅＴｒａｎｓｉｔｉｏｎＯｆＭｅｔａｐｈａｓｅＭｏｕｓｅＯｏｃｙｔｅｓ￥ＳＵＮＱｉｎｇ－ｙｕａｎ（孙青原）;ＧＡＯＳｈａｏ－ｒｏｎｇ（高...     

福建中亚热带村级农业生态经济类型的成因与发展机制研究

福建中亚热带村级农业生态经济类型的成因与发展机制研究林文雄,吴志强,林群慧,郑世庆,王松良,梁义元（福建农学院,福州３５０００２）ＣｏｎｔｒｉｂｕｔｉｎｇＦａｃｔｏｒａｎｄＤｅｖｅｌｏｐｍｅｎｔＭｅｃｂａｎｉｓｍｏｆＲｕｒａｌＡｇｒｏ－ｅｃｏｌｏｍｉｃＴｙｐｅｓｉｎＭｉｄ－ｓｕｂｔｒｏｐｉｃａｌＲｅｇｉｏｎｏｆＦｕＪｉａｎＰｒｏｖｉｎｃｅ￥．ＬｉｎＷｅｎｘｉｏｎｇ;ＷｕＺｈｉｑｉａｎｇ;ＬｉｎＱｕｎｈｕｉ;ＺｈｅｎｇＳｈｉｑｉｎｇ;ＷａｎｇＳｏｎｇｌｉａｎｇ;ＬｉａｎｇＹｉｙｕａｎ（ＦｕｊｉａｎＡｇｒｉｃｕｌｔｕｒａｌＣｏｌｌｅｇｅ,Ｆｕｚｈｏｕ３５０００２）．ＣｈｉｎｅｓｅＪｏｕｒｎａｌｏｆＥｃｏｌｏｇｙ,１９９３,１２（２）：６６－６８．Ｕｓｉｎｇｓｙｓｔｅｍａｔｉｃａｎａｌｙｓｉｓｍｅｔｈｏｄｔｈｅａｕｔｈｏｒｓｓｔｕｄｉｅｄｔｈｅｓｔａｔｕｅｃｈａｒａｃｔｅｒｉｓｔｉｃｓａｎｄｔｈｅｉｒｖａｒｉａｔｉｏｎｐａｔ－ｔｅｒｎｓｏｆｒｕｒａｌａｇｒｏ－ｅｃｏｌｏｍｉｃｔｙｐｅｉｎｍｉｄ－ｓｕｂｔｒｏｐｉｃａｌｒｅｇｉｏｎｏｆＦｕｊｉａｎｐｒｏｖｉｎｃｅ．１１ｔａｐｅｓｏｆｓｙｓｔｅｍｓｔｒｕｃｔｕｒｅａｎ     

National Museum of Plant History of China

ＴｈｅＮａｔｉｏｎａｌＭｕｓｅｕｍｏｆＰｌａｎｔＨｉｓｔｏｒｙｏｆＣｈｉｎａｉｓａｂｒａｎｃｈｏｆｈｅｒｂａｒｉｕｍ,ＩｎｓｔｉｔｕｔｅｏｆＢｏｔａｎｙ,ｔｈｅＣｈｉｎｅｓｅＡｃａｄｅｍｙｏｆＳｃｉｅｎｃｅｓ．Ｉｔｗａｓｂｕｉｌｔｉｎ１９９６ａｎｄｏｆｆｉｃｉａｌｌｙａｐｐｒｏｖｅｄｂｙｔｈｅＣｈｉｎｅｓｅＡｃａｄｅｍｙｏｆＳｃｉｅｎｃｅｓｉｎ１９９８．ＩｔｗａｓｉｎｓｃｒｉｂｅｄｂｙＺｈｏｕＧｕａｎｇｚｈａｏ,Ｔｈｅｖｉｃｅ -ＣｈａｉｒｍａｎｏｆＳｔａｎｄｉｎｇＣｏｍｍｉｔｔｅｅｏｆＣｈｉｎｅ…     

Crystal structure of R22L trichosanthin

Ｔｒｉｃｈｏｓａｎｔｈｉｎ(ＴＣＳ)ｉｓａｎｉｍｐｏｒｔａｎｔｍｅｍｂｅｒｏｆｒｉｂｏｓｏｍｅｉｎａｃｔｉｖａｔｉｎｇｐｒｏｔｅｉｎｓ[1].ＩｔｐｏｓｓｅｓｓｅｓＮｇｌｙｃｏｓｉｄａｓｅａｃｔｉｖｉｔｙｒｅｍｏｖｉｎｇａｄｅｎｉｎｅ(ＡＤＥ)ａｔｐｏｓｉｔｉｏｎＡ4324ｏｆ28ＳｒＲＮＡ[2].ＴｈｅａｃｔｉｖｅｐｏｃｋｅｔｏｆＮｇｌｙｃｏｓｉｄａｓｅｈａｓｂｅｅｎｅｓｔａｂｌｉｓｈｅｄｔｈｒｏｕｇｈｔｈｅｃｒｙｓｔａｌｓｔｒｕｃｔｕｒｅｓｏｆＴＣＳ,αＭＭＣａｎｄｒｉｃｉｎａｎｄａｓｓａｙｏｆｍｕｔａｎｔｓ…     

黔南下-中二叠统界线层的牙形刺--瓜达鲁平统底界在华南的确认

本文详细研究了贵州罗甸纳水剖面下－中二叠统界线、即瓜达鲁平统（Ｇｕａｄａｌｕｐｉａｎ）底界附近的牙形刺动物群,并自上而下划分为Ｍｅｓｏｇｏｎｄｏｌｅｌｌａ ｓｉｃｉｌｉｅｎｓｉｓ－Ｍ．ｐｈｏｓｐｈｏｒｉｅｎｓｉｓ,Ｍｅｓｏｇｏｎｄｏｌｅｌｌａ ｉｄａｈｏｅｎｓｉｓ－Ｍ．ｐｈｏｓｐｈｏｒｉｅｎｓｉｓ,Ｍｅｓｏｇｏｎｄｏｌｅｌｌａ ｇｕｊｉｏｅｎｓｉｓ－Ｍ．ｉｎｔｅｒｍｅｄｉａ和Ｍｅｓｏｇｏｎｄｏｌｅ     

荒漠绿洲生态系统的运行机制及退化的监控研究

荒漠绿洲生态系统的运行机制及退化的监控研究方创琳（西北师范大学地理系,兰州７３００７０）ＯｐｅｒａｔｉｏｎＭｅｃｈａｎｉｓｍｏｆＤｅｓｅｒｔＯａｓｅｓＥｃｏｓｙｓｔｅｍａｎｄＩｔｓＤｅｇｅｎｅｒａｔｉｏｎＭｏｎｉｔｏｒｉｎｇ．￥ＦａｎｇＣｈｕａｎｇｌ...     

Monoclonal antibody, a novel probe for protein folding

Ｈｙｂｒｉｄｏｍａａｎｔｉｂｏｄｉｅｓａｒｅａｐｏｗｅｒｆｕｌｔｏｏｌｆｏｒｓｔｕｄｙｉｎｇｓｔｒｕｃｔｕｒｅａｎｄｆｕｎｃｔｉｏｎｏｆｐｒｏｔｅｉｎｓｏｗｉｎｇｔｏｔｈｅｉｒａｂｉｌｉｔｙｔｏｒｅｃｏｇｎｉｚｅａｎｄｂｉｎｄｔｈｅｉｒｃｏｒｒｅｓｐｏｎｄｉｎｇａｎｔｉｇｅｎｓａｔｓｐｅｃｉａｌｒｅｇｉｏｎｓ(ｉ.ｅ.ｅｐｉｔｏｐｅ)ｗｉｔｈｈｉｇｈｅｆｆｉｃａｃｙａｎｄｓｐｅｃｉｆｉｃｉｔｙ.Ｍｏｎｏｃｌｏｎａｌａｎｔｉｂｏｄｉｅｓ,ｅｓｐｅｃｉａｌｌｙｔｈｅｃｏｎｆｏｒｍａｔｉｏｎｄｅｐｅｎｄｅｎ…     

Determination of stoichiometry of radioiodination of proteins

A sensitive method for the detection of small quantities of hydrophobic antioxidant free radical scavengers such as butylatedhydroxytoluene (BHT) and butylatedhydroxyanisole (BHA) in aqueous samples is described. The procedure involves extraction of the hydrophobic free radical scavenger into an organic solvent phase, followed by the subsequent reaction of an aliquot of this extract with the stable cation radical tris(p-bromophenyl)amminium hexachloroantimonate (TBACA). In experiments with BHT and BHA, the loss of TBACA absorbance at 730 nm was found to be linearly proportional to the amount of antioxidant added, with quantities of BHT as small as 200 pmol being easily detectable. In aqueous suspensions of dimyristoylphosphatidylcholine vesicles, assays of the aqueous BHT concentration showed that BHT partitioned strongly into the membrane phase, achieving very high BHT/phospholipid ratios. For a given concentration of BHT, partitioning into the membrane phase was greater in large, multilamellar liposomes than in either small, single-walled vesicles or in purified rat brain synaptic vesicle membranes. Direct assay of BHT and BHA in phospholipid membranes, however, was complicated by a nonspecific interaction between TBACA and the phospholipid.