The identity of Schizothorax griseus Pellegrin, 1931, with descriptions of three new species of schizothoracine fishes (Teleostei: Cyprinidae) from China

The identity of Schizothorax griseus Pellegrin, 1931, is clarified and the species redescribed. Three new species previously identified as S. griseus are described: S. nudiventris, from the Lancang Jiang, China; S. heterophysallidos, from the Nanpan Jiang

A new species of sisorid catfish genus Glyptothorax (Teleostei: Sisoridae) from Salween drainage of Yunnan, China

A new species of the genus Glyptothorax, Glyptothorax obliquimaculatus sp. nov. is described from the Xiaohei River, a tributary of the Nanting River, Salween drainage, in southwestern Yunnan province, China. This new species can be distinguished from its congeners by the following combination of characteristics: unculiferous ridges of the thoracic adhesive apparatus extending anteriorly onto the gular region; body with irregular dark blotches scattered along lateral surface (blotches mostly oblique); skin smooth on head and body; dorsal spine smooth without serrations on its posterior margin; lips smooth; posterior margin of pectoral spine with 7-8 serrations; dorsal-fin base 11.0-13.2% SL; pectoral-fin length 15.6-19.6% SL; depth of caudal peduncle 8.6-9.8% SL; head width 19.1-24.0% SL; nasal barbel length 23.3-33.3% HL.

核纤层蛋白及其基因的研究

核纤层是细胞核内极其重要的结构，近年来有关核纤蛋白及其基因的研究取得了较大进展，文中就国际上有关该领域研究的新进展并结合作者所在实验室近年来的有关研究结果，从核纤层蛋白成分及功能，核纤层蛋白基因及其起源分化等方面进行了较系统的介绍和探讨，并提出了一些值得深入研究的新问题。

补充营养对柑橘凤蝶卵成熟和雄虫寿命的影响

在实验室条件下,定量地研究了蔗糖、葡萄糖、果糖和蜂蜜等4种补充营养物对柑橘凤蝶卵成熟和雄虫寿命的影响.结果表明:(1)补充蔗糖、果糖和蜂蜜水的雌虫孕成熟卵量都显著高于清水对照组,其中补充蔗糖的雌虫孕成熟卵量最高;(2)不同的补充营养物对雌虫孕亚成熟卵量和未成熟卵量的影响不显著;(3)饲喂蔗糖、果糖和蜂蜜的雄虫寿命显著高于对照组,其中饲喂果糖的雄虫寿命最长;(4)饲喂添加不同浓度NaCl溶液的蜂蜜水的雄虫寿命比仅饲喂蜂蜜水的雄虫短,当NaCl溶液浓度为0.001 mol/L,0.1 mol/L和 1 mol/L 时,雄虫寿命显著低于对照,其中饲喂0.001 mol/L NaCl溶液的雄虫寿命最短.

昆明山海棠对中国仓鼠V_(79)细胞二酰基甘油含量的影响

研究以昆明山海棠根部水抽提物(Tripterygium hypoglaucum (Level) Hutch,THH)处理中国仓鼠V_(79)细胞,通过检测V_(79)细胞C-M细胞频率以及二酰基甘油(1,2-diacylgcerol,DAG)的含量测定,分析了THH诱发非整倍体与细胞醇磷酯信号通路的关系。结果指出:THH能在1mg/ml、2mg/ml两个剂量上使V_(79)细胞的DAG含量显著升高(P<0.001),并明显的提高C-M细胞频率(P<0.05),提示肌醇酯信号通路是介导THH诱发非整倍体的途径之一。

黄连山自然保护区非人灵长类现状和生存威胁因素

介绍了黄连山自然保护区非人灵长类的现状。利用现有统计资料中隐含的生态信息 对自然保护区中的非人灵长类的生存威胁因素作了分析。农村人口与农民收入、粮食面积、粮 食产量、茶叶产量、水果产量和紫胶产量呈正相关;农民收入与粮食产量、茶叶产量、水果产量、 紫胶产量和橡胶面积呈正相关。农村人口、农业发展和偷猎行为是保护区非人灵长类的威胁 因素;提高农业生产效率和加强保护区管理是改善非人灵长类现状的关键。

大白蚁机体的蛋白质氨基酸及脂肪酸分析

对土垅大白蚁和簧翅大白蚁三个品极的干物质分析表明, 其工蚁的氨基酸总 量分别为42.16 ％和48.06％; 兵蚁分别为38.55％和33.78％; 蚁后分别为46.23 ％和41.09％。其必需氨基 酸含量占氨基酸总量的40％以上。土垅大白蚁蚁后的 体脂经甲酯化处理, 用气相色谱仪鉴定出13种脂肪酸, 其不饱和脂肪酸占68.77 ％, 其中油酸(18:1)51.14％、亚油酸(18:2)13.01 ％、亚麻酸(18:3)0.65％, 分析还发现含有十五碳酸、十七碳酸及十七碳—烯酸等不多见的奇数脂肪酸。图 1表3参9

藏猴替代父母行为

在23周龄内,婴猴有10.5%的时间受到替代父母, 主要是成年雄性的照料, 此行为可能用以补偿母亲在恶劣觅食条件下对子女的高投入。其中,7.3%的时间与成年雄性在一起, 1.9%与非母亲成年雌性, 1.3%与少年猴在一起。雄性较雌性更经常地照料、探查、拦回、排斥婴猴;他们一般只与雄性婴猴玩耍。

EARLY MOTHER-INFANT RELATIONSHIPS OF MACACA-THIBETANA AT MT-EMEI CHINA

Quantitative data on early mother-infant relationships in the Tibetan macaque was collected during the first 23 weeks of infant life in spring, 1987, at Mt. Emei, China. During the first week of life, infants spent 98.3% of their time in ventroventral contact with their mothers. This contact rapidly decreased to 33.8% by the 4th week and thereafter to 0.85% by the 23rd week. Nipple contact decreased relatively slowly from 89.7% to 62.9% within the first 4 weeks of infant life and to 19.8% by the 23rd week. Ventrolateral and ventrodorsal contact appeared by the 2nd week, mean-while, maternal restraining behavior appeared, and reached a peak by the 3rd week. The mother neither encouraged nor discouraged her infant's independence during 4-8th weeks. Maternal rejection of the infant was first observed when the infant was 11 weeks old and continued thereafter.