杉科化石植物角质层的研究

化石角质层是地质史上真正生活过的植物活体上的原物，其表皮细胞和气孔的特征以及气孔的分布与排列可作为杉科植物属种分类的依据．本文简要讨论了角质层在杉科化石植物研究上的重要性．     

Flavonoid wing pigments in grasshoppers

Yellow pigments extracted from the hindwings ofDissoteira carolina (L.) (Acrididae:Oedipodinae) were identified by HPLC, GLC, MS and absorbance spectra as primarily quercetin and quercetin--3-O-glucoside with minor amounts of luteolin. These flavonoids make up about 2% of the hindwing live weight and are also abundant in the yellow hindwings of several related species of band-winged grasshoppers. Fat body UDPG glucosyltransferase preferentially catalyzed glucosylation of the 3-OH of quercetin.     

大豆叶表皮的电镜观察

本文对大豆叶表皮进行了电子显微镜观察,结果表明大豆叶表面有毛、腺体和气孔等;叶表面覆盖着一层较薄的角质层,角质层厚薄不一,从1.09～11.56μm,但并无一定规律,角质层厚度随植物的生长而不断加厚,表皮细胞内的细胞器随植物的生长而减少。