麻疹减毒活疫苗的免疫学研究,过去多限于体液免疫方面,而对细胞免疫的研究较少,国内至今未见报道。近年来,国内外采用淋巴细胞酯酶染色法,于普通显微镜下鉴别 T淋巴细胞,以了解机体的细胞免疫功能。我们于1980年春,用此种方法对麻疹疫...麻疹减毒活疫苗的免疫学研究,过去多限于体液免疫方面,而对细胞免疫的研究较少,国内至今未见报道。近年来,国内外采用淋巴细胞酯酶染色法,于普通显微镜下鉴别 T淋巴细胞,以了解机体的细胞免疫功能。我们于1980年春,用此种方法对麻疹疫苗初次免疫及再免疫儿童,进行了免疫前及免疫后不同时期 T 淋巴细胞计数的动态观察,并与自然麻疹患者及健康人进行比较,现将观察结果报告如下。展开更多
The floral-organ-number mutant fon（t） was firstly discovered in the progeny of a cross between a diploid （Chunjiang 683） and a haploid （SARⅣ/-620-A） rice cultivar. The fon（t） mutant showed normal vegetative d...The floral-organ-number mutant fon（t） was firstly discovered in the progeny of a cross between a diploid （Chunjiang 683） and a haploid （SARⅣ/-620-A） rice cultivar. The fon（t） mutant showed normal vegetative development and produced normal inflorescence structures. Difference between the mutant and the wild type was observed when the stamen primordia began to form. The mature flowers offon（t） mutant showed open-hull phenotypes, which resulted in the exposure of stamens and stigmas. Normally, a single fon（t） floret consisted of six to nine stamens and one or two pistils. In addition, stamen/pistil-like structures and bulged tissues near ovaries were also observed in a few fon（t） florets. But homeotic transformation of lodicules into palea/lemma-like organs was observed almost in all the open-hull florets. The phenotypes offon（t） flowers also suggested thatfon（t） gene might affect flower organ identity in the inner whorls. Genetic analysis showed that thefon（t） mutant was controlled by a single recessive gene.展开更多
文摘麻疹减毒活疫苗的免疫学研究,过去多限于体液免疫方面,而对细胞免疫的研究较少,国内至今未见报道。近年来,国内外采用淋巴细胞酯酶染色法,于普通显微镜下鉴别 T淋巴细胞,以了解机体的细胞免疫功能。我们于1980年春,用此种方法对麻疹疫苗初次免疫及再免疫儿童,进行了免疫前及免疫后不同时期 T 淋巴细胞计数的动态观察,并与自然麻疹患者及健康人进行比较,现将观察结果报告如下。
基金This work was supported by the Program for Changjiang Scholars and Innovative Research Team in University (No. IRTO453)
文摘The floral-organ-number mutant fon（t） was firstly discovered in the progeny of a cross between a diploid （Chunjiang 683） and a haploid （SARⅣ/-620-A） rice cultivar. The fon（t） mutant showed normal vegetative development and produced normal inflorescence structures. Difference between the mutant and the wild type was observed when the stamen primordia began to form. The mature flowers offon（t） mutant showed open-hull phenotypes, which resulted in the exposure of stamens and stigmas. Normally, a single fon（t） floret consisted of six to nine stamens and one or two pistils. In addition, stamen/pistil-like structures and bulged tissues near ovaries were also observed in a few fon（t） florets. But homeotic transformation of lodicules into palea/lemma-like organs was observed almost in all the open-hull florets. The phenotypes offon（t） flowers also suggested thatfon（t） gene might affect flower organ identity in the inner whorls. Genetic analysis showed that thefon（t） mutant was controlled by a single recessive gene.
