臭腹腺蝗（直翅目： 锥头蝗科）中肠内营养物-水分的流动和吸收

对臭腹腺蝗Zonocerus variegatus中肠内水分和营养物的流动和吸收进行了研究,以期确定其流动模式及在该虫对氰化氢适应方面的意义。对中肠细胞进行了组织切片观察;测定了K⁺, Na⁺和蛋白质沿中肠的浓度梯度,并观察了中肠对K⁺, Na⁺, Ca²⁺, Mg²⁺和甲基蓝的通透性。结果表明,中肠（胃和胃盲囊）组织上结构相似,均由具有纹状边缘的柱状细胞构成。营养物质在中肠不同部分的浓度不同。测试物在整个中肠中流动,中肠各段均参与了食物和水分的吸收。臭腹腺蝗肠内没有像大多数直翅目昆虫那样自后肠的液流逆向流动。肠溶物的单向流动可以防止有毒物质的积累,使臭腹腺蝗成功耐受木薯叶中的氰化氢。     

臭腹腺蝗（直翅目：锥头蝗科）胃盲囊的异速生长和功能特性

通过对臭腹腺蝗Zonocerus variegatus（直翅目：锥头蝗科）6个若虫期及成虫期主消化道和胃盲囊分段进行解剖和测量,对其胃盲囊的异速生长和功能特性进行了研究。结果表明,胃盲囊和主消化道的生长是不同速的。胃盲囊前段较后段生长速率更高,但两者生长速率显著相关。消化道和胃盲囊的平均长度亦显著相关。随年龄增长,消化道的生长速率降低,而胃盲囊的生长速率上升。与胃盲囊前段功能相同,胃盲囊后段亦具有消化和吸收功能,被认为能在营养缺乏的旱季起到增加肠胃吸收面的功能。     

Evaluation of liquid-based cytology in cervical screening of high-risk populations: a split study of colposcopy and genito-urinary medicine populations

A split study evaluated the ThinPrep(R) PapTesttrade mark (TP; Cytyc Corp., Boxborough, MA) compared with current methodologies of cervical cytology in two high-risk cohorts. One thousand, three hundred cases from a colposcopy clinic and a genito-urinary medicine outpatient clinic were examined. The TP reported increased detection of all grades of dyskaryosis (mild, moderate and severe; + 4.5%) and a decrease in borderline and unsuitable cases (- 4.9%). Four cases of high-grade dyskaryosis (moderate or severe) were detected only using the TP, while an additional four cases classified as high-grade dyskaryosis with the TP were reported as borderline by our conventional methods. The split-study finding of increased sensitivity with the TP provides for improved clinical management of patients in our high-risk cohorts.     

尼日利亚热带雨林池塘中茄氏旗鳉的食性

本文逐月研究了尼日利亚Mfangmfangpond中茄氏旗鳉全年的食性。其食谱按优势多寡出现的次序分别是陆生无脊椎动物、大型植物、水生无脊椎动物、小型甲壳动物、沙粒和藻类。我们将膜翅目、鞘翅目和双翅目昆虫作为其食性的次级项,而全年都出现的有机体碎屑作为初级项。雄鱼较雌鱼捕食了更多的陆生无脊椎动物。茄氏旗在雨季有16项食物组成,但旱季只有7项。就相对重要性而言,陆生和水生无脊椎动物在旱季更大,而大型植物碎屑、小型甲壳动物、沙粒和藻类则在雨季更大。成鱼较幼鱼更多地以外源性无脊椎动物为食。雌鱼较雄鱼有更强的觅食能力;同样,成鱼较幼鱼的觅食能力强得多.     

Karyotypes and evolutionary relations of Hibiscus asper Hook., H. cannabinus L. and H. surattensis L. (Malvaceae)

Studies were made of the morphology and karyotype of accessions of H. asper, H. cannabinus and H. surattensis. There were six simple epicalyx segments in H. asper , nine in H. cannabinus and ten branched and leafy epicalyx segments in H. surattensis. Karyotypic analysis of the species showed a preponderance of median centromeres. H. surattensis had a more symmetrical karyotype and smaller chromosomes than H. asper and H. cannabinus. H. asper had the longest chromosomes. Ten of their chromosomes were significantly different in length, while four were significantly different in arm ratio.     

臭腹腺蝗（直翅目：锥头蝗科）消化道对食物储存、消化和吸收相适应的显微结构

显微观察发现臭腹腺蝗Zonocerus variegatus（直翅目：锥头蝗科）嗉囊、中肠和后肠的肠壁结构有所不同。嗉囊为空时纵向折叠。中肠上皮层的厚度随龄期有明显变化,1龄和2龄时明显大于3龄、4龄和5龄。后肠具有帮助消化和吸收的功能。     

The Effects of Temperature upon Seed Development in Three Species of Forage Grasses

The effects of three temperature regimes, 25°C day/20°Cnight, 20°C day/15°C night and 15°C day/10°Cnight upon seed development in S.22 Italian ryegrass, S.24 perennialryegrass, S.215 meadow fescue and a Swiss ecotype of meadowfescue were investigated. The largest ovaries and largest seedswere obtained from the 15/10°C environment and floret fertilitywas greatest at 20/15°C. The largest seed weight per inflorescencewas at 20/15°C, except for the Swiss ecotype of meadow fescuewhere it was greatest at 15/10°C. The percentage germinationwas highest from those seeds developed at 25/20°C and thiswas particularly marked at germination temperatures of 13–20°C.There was a low rate of germination of seeds from the 15/10°Ctreatment, but they produced seedlings with the largest dryweights. It is concluded that year to year temperature differenceswill affect the yield and quality of seed crops of forage grasses.