蝮蛇短尾亚种核型研究初报

对生活在秦岭地区的蝮蛇短尾亚种（Ａｇｋｉｓｔｒｏｄｏｎ ｈａｌｙｓ ｂｒｅｖｉｃａｕｄｕｓ）的染色体核型进行了研究，并在方法上有所改进     

新疆北部繁殖季节JiLing属的研究

对新疆北部繁殖季节四种ＪｉＬｉｎｇ属的鸟类进行了研究事理认为过去文献对其中的黄ＬｉＬｉｎｇ，黄头ＪｉＬｉｎｇ和灰ＪｉＬｉｎｇ的亚种鉴定有值得商榷之处，并提出了不同的分类意见。     

Lactobacillus casei subsp, rhamnosus 719对泡菜中亚硝酸盐的影响

为控制泡菜中的潜在致癌物——亚硝酸盐，将Lactobacillus casei subsp．rhamnosus 719（LCR719）接种到泡菜中，进行发酵，制备出亚硝酸盐含量低的泡菜，并对泡菜发酵和贮藏过程中的亚硝酸盐含量、L-乳酸含量和酸度进行研究．采用盐酸萘乙二胺法测得接种LCR719发酵120h的泡菜中亚硝酸盐含量为2．214mg／L，低于对照样的10．500mg／L；用手性柱的高效液相法测得发酵24h的泡菜中L-乳酸含量为13．74g/L．结果表明，LCR719在泡菜发酵过程中快速产生L-乳酸，从而抑制了亚硝酸盐的产生．     

川西高原黑熊生物学的初步研究

河南大学学报(自然科学版),1990;(4):124 将川西高原黑熊划分4个年龄组:①幼年组0—2岁;②亚成体组2—3岁;成年组3—1岁;④老龄组11岁以上,发现黑熊幼体的尸骨与桡骨交叉扭曲程度大于成体,并随年龄增长逐渐趋于平行,获得黑熊食性及越冬信息,川西高原黑熊应归属为黑熊的指名亚种。     

甘肃徽县产日本蝮短尾亚种斑纹异常一例

报导日本蝮短尾亚种背部斑纹变异一例,由背部两侧近似园形的斑纹变异为两条深棕色纵条纹,该条纹直通至躯干部末端,为罕见变异个体。     

山西省鸟类新记录

1 蒙古百灵指名亚种 Melanocorypha mongolica mongolica(Pallas) 采集地及采集时间:太原市南郊;1989年10月17日。 量衡度及形态特征:体重(♂)56.5g,体长212mm(下同),嘴峰长18,翅长131,尾长66,跗蹠长25。头顶呈棕黄色,背羽棕褐色;尾羽黑褐色,除中央一对外,均具白色羽端斑;初级飞羽黑褐     

陕西学者发现虎凤蝶新种

陕西蝴蝶学专家寿建新和西北农林科技大学博士袁向群近期发现了虎凤蝶一个新种和一个新亚种．并根据其具体的生物学形态特征而为其取名“周氏虎凤蝶”，“中华虎凤蝶陕南亚种”。     

Experimental validation of inter-subspecific genetic diversity in rice represented by the differences between the DNA sequences of ＇Nipponbare＇ and ＇93-11＇

The pedigrees of three sequenced rice cultivars were analyzed to show that a majority of the genetic composition of ＇Nipponbare＇ originates from japonica cultivars while the minority originates from indica cultivars. In contrast, ＇93-11＇ is derived mainly from indica cultivars with a smaller contribution from japonica cultivars. All ancestors of ＇Guang lu ai 4＇ appeared to be indica lines. A set of molecular markers （46 InDels and 53 SSRs） polymorphic between ＇Nipponbare＇ and ＇93-11＇ were examined in 46 typical indica and 47 typical japonica cultivars selected from 443 accessions according to Cheng＇s index. All cultivars were divided into indica and japonica groups without overlapping when clustered by Cheng＇s index, InDels and SSRs. Much higher InDel and SSR diversity between groups than within groups implies that the marker polymorphisms between ＇Nipponbare＇ and ＇93-11＇ represent a large proportion of inter-subspecific diversity. About 85% of indica cultivars and more than 90% of japonica cultivars were confirmed to have the same PCR banding patterns as ＇93-11＇ and ＇Nipponbare＇, respectively. Some polymorphic loci between ＇Nipponbare＇ and ＇93-11＇ cannot be validated in other indica and japonica cultivars, either as subspecies-specific but not predominant alleles, or alleles not specific between the two groups. It was concluded that molecular markers developed from sequence polymorphism between ＇Nipponbare＇ and ＇93-11＇ often represent inter-subspecific diversity, although some exceptions were sensitive to either particular marker loci or particular cultivars.     

金斑喙凤蝶广西亚种生活史研究

报道金斑喙凤蝶广西亚种(Teinopalpus aureus guangxiensisChou et Zhou)自然条件下的生活史,描述了各时期虫态的形态特征。该蝶在广西大瑶山自然保护区1年发生2代,成虫每年4月下旬至6月上旬和7月上旬至9月上旬活动。卵期14~15 d。幼虫5龄,各龄期为:1龄8~9 d,2龄7~8 d,3龄9~10 d,4龄9~10 d,5龄16~18 d。夏蛹期2~3个月,越冬蛹6~7个月。     

东北虎

大约200万年前，老虎出现在当今中国的南部。上世纪初，全世界老虎的数量在10万只左右，最新的调查却表明，虎在全世界的总数大约为5000只，处于非常濒危的状况。今天，老虎的分布区仅占历史上的7％。所有的野生虎仅存在于亚洲，都属于一个物种：Panthera tigris。科学家对现存老虎有多少个亚种说法不一。这里列出通常接受的8个亚种。