Reviews

Books reviewed: Ross McLeod and Ross Garnaut (eds), East Asia in crisis: from being a miracle to needing one? Anthony Reid (ed.), Sojourners and settlers: histories of Southeast Asia and the Chinese William Callahan, Imagining democracy: reading ‘the events of May’ in Thailand Lynne T. White, Unstately Power, Volume I: Local causes of China's economic reforms; Volume II: Local causes of China's intellectual, legal and government reforms Michael Young, Malinowski's Kiriwana; fieldwork photography 1915‐1918 Colin Filer with Nikhil Sekhran, Loggers, donors and resource owners. Policy that works for forests and people Michael Dutton (ed.), Streetlife China Kimberly Ann Elliott (ed.), Corruption and the global economy     

贵州小香羊MSTN基因内含子2和外显子3的多态性

为贵州小香羊选育及进一步研究MSTN基因与贵州小香羊生长性状的相关性提供理论依据,采用PCR-RFLP方法对67只贵州小香羊MSTN基因内含子2和外显子3进行了多态性分析。结果表明,所扩增内含子2中存在Bsp1286I酶切多态位点,杂合型(AB)为优势基因型,无纯合野生型(AA)和纯合突变型(BB);所扩增内含子2和外显子3中存在BstBI酶切多态位点,杂合型(CD)为优势基因型,纯合野生型(CC)和纯合突变型(DD)为非优势基因型,D等位基因为优势基因,且含有2个TatI正常酶切位点,但不存在多态性,不存在BsmFI酶切位点。     

湘杂棉8号在不同密度条件下棉株的成铃分布

以湘杂棉8号品种,设6个不同密度处理3次重复,从纵向、横向和圆锥体顺序比较其成铃分布状况。结果表明：各处理成铃率下部高于中部、中部高于上部;内围铃高于外围铃;单株成铃率以12000株/hm^2成铃率最高为42．6％,57000株/hm^2成铃率最低为28．2％;圆锥体成铃率,第1圆锥体以12000株/hm^2和21000株/hm^2两处理的成铃率最高,达到90％,第2、3圆锥体成铃率以12000株／hm^2、21000株／hm^2成铃率高,均超过70％,第4．10圆锥体成铃率随着密度、圆锥体序数的增加而逐渐降低,12000株／hm^2在第5圆锥体的成铃率达到50％以上。     

不同密度下湘杂棉8号干物质积累及动态分配

湘杂棉8号在不同密度下干物质积累动态均遵循Logistic曲线规律。随着种植密度的增加。单株及各器官干物质积累量减少．而单位面积总干物质积累量增加。种植密度为39ooo株／hm2干物质积累多．有利于高产。     

已烯雌酚对贵州香猪睾丸一氧化氮合成酶活性的影响

采用比色法测定已烯雌酚(diethylstilbestrol,DES)对性未成熟贵州香猪睾丸一氧化氮合成酶(Nitrioxide synthase,NOS)活性的影响.结果表明:DES能够使贵州香猪睾丸一氧化氮合成酶(Nitrioxide synthase,NOS)活性显著增强(p＜0.01).睾丸中NOS和cNOS的活性在DES用量为0.3 mg/kg时最强(p＜0.01);当增大到3 mg/kg用量时,二者活性又降低(p＜0.01).诱导型一氧化氮合成酶(iNOS)的活性在DES为0.03 mg/kg时最强(p＜0.01);当DES在0.3 mg/kg和3 mg/kg时,其活性显著降低(p＜0.01).DES使附睾中NOS活性显著减弱(p＜0.01),随着DES用量的增多,附睾中NOS活性增强.主要表现在对结构型一氧化氮合成酶(cNOS)活性有显著增高作用(p＜0.01),但其活性还是低于对照组(p＜0.01).研究结果认为DES能增强性未成熟贵州香猪睾丸中NOS的活性而抑制附睾中NOS的活性.     

历代荔枝谱述评

我国是荔枝的原产地和世界上栽培荔枝最早的国家。自宋代至清末,先后出现了十五种以上的荔枝谱著作。本文将其基本内容、著作年代、著者生平、流传情况及后人著录的得失,一一予以评述。     

Effects of She Xiang Bao Xin Wan (SXBXW) on the proliferation of primary cultured human umbilical artery vascular smooth muscle cells induced by endothelin-1

AIM: To observe the effects of She Xiang Bao Xin Wan (SXBXW) of Chinese patent medicine on the proliferation of primary cultured vascular smooth muscle cells (VSMCs) from human umbilical artery and stimulated by endothelin-1 (ET-1) in vitro. METHODS: The proliferation cell models of primary cultured VSMCs were established by ET-1 stimulation. Six groups in the experiment were divided into control group; ET-1 group; ET-1+SXBXW 0.25 g/L; ET-1+SXBXW 0.5 g/L; ET-1+SXBXW 1.0 g/L and ET-1+SXBXW 2.0 g/L groups, respectively. The proliferation induced by ET-1 and the suppression mediated by SXBXW on VSMCs were measured by MTT method. The inhibitory rate and the cytotoxicity of SXBXW were detected by lactate dehydrogenase colorimetry and trypan blue exclusion tests. The effect of ET-1 and SXBXW on the cell proliferation cycle was analyzed by flow cytometry. RESULTS: Compared to control group, ET-1 significantly enhanced the proliferation of VSMCs (P<0.01). However, a certain dose of SXBXW inhibited effectively the proliferation of VSMCs induced by ET-1 in a dose-dependent manner (P<0.01). Meanwhile, SXBXW showed no influenced on both the number of living cells and the release of lactate dehydrogenase, although it inhibited the proliferation of VSMCs, indicating that SXBXW was no cytotoxicitic effect on VSMCs. ET-1 enhanced the proliferation of VSMCs by means of promoting the transition of the cell cycle from G1 phase to S phase. However SXBXW significantly inhibited the proliferation mediated by ET-1. CONCLUSION: SXBXW plays the role in suppressing VSMCs proliferation induced by ET-1. The mechanism may be involved in blocking the cell cycle from G1 phase into S phase.     

厦门市翔安区胡萝卜新品种引种试验

2008年厦门市翔安区农林水利局对7个胡萝卜新品种进行田间比较试验,结果表明,盛农7寸和助农大根两品种田间表现比坂田七寸(对照)增产,且综合性状较好,建议进一步扩大生产示范。     

麦冬道地药材的国家地理标志产品保护现状分析

从地域保护范围、质量技术要求、地理标志产品专用标志的使用等方面,介绍涪城麦冬、襄麦冬的国家地理标志产品的保护现状,分析了其中存在的主要问题:1)保护地域范围限定太小,尤其是襄麦冬,不利于区域专业化发展;2)未能充分利用"地理标志产品专用标志";3)只有地方性质量标准,未建立国家质量标准;4)襄麦冬尚未注册相应的地理标志商标;5)麦冬中仅涪城麦冬获得国家食品药品监督管理局中药材GAP认证。同时探讨了麦冬道地药材的国家地理标志产品的发展对策,提出相应的建议。     

贵州白香猪不同杂交组合后代生长发育指标的测定

试验选用贵州白香猪作为母本,分别以大约克猪、杜洛克猪、长白猪作为父本进行杂交组合试验,测定了3个杂交组合F1代及对照组香猪的初生重、20日龄重及2～6月龄的生长发育指标。结果表明,初生重为杜×香大×香长×香香猪,长×香组与对照组香猪间差异不显著(P0.05);20日龄重为杜×香大×香长×香香猪。生长发育各指标间差异显著,并且随着月龄增加各试验组间生长发育显著性增大,除2月龄体长为杜×香大×香长×香香猪、3月龄体重,体长、胸围、腹围指标及5月龄体高、体长指标为大×香长×香杜×香香猪外,其余月龄生长发育各指标为大×香杜×香长×香香猪。